devices: fix name handling

- Fix cases where incorrect device paths were left on the dev->aliases list. Leaving incorrect paths on dev->aliases could result in using the wrong device. - Fix a widespread incorrect assumption that dev_name() always returns a valid path (or NULL). dev_name() returns "[unknown]" when there are no paths to a device, and is mainly meant to be used in messages. - Check for valid dev paths in cases that want to use the from dev_name() for things other than a message.
2025-09-01 13:49:32 +03:00 · 2022-02-24 15:37:53 -06:00
687 changed files with 25877 additions and 53363 deletions
--- a/.gitignore
+++ b/.gitignore
@ -14,14 +14,8 @@
 *.so
 *.so.*
 *.sw*
-*.su
-*.patch
 *~

-# gcov files:
-*.gcda
-*.gcno
-
 .export.sym
 .exported_symbols_generated
 .gdb_history
@ -45,19 +39,12 @@ make.tmpl

 coverity/coverity_model.xml

-/.cache/
-/compile_commands.json
-
-/doc/.ikiwiki
-/public
-
-/libdm/.symver_check
-
-daemons/clvmd
-daemons/dmfilemapd
-daemons/lvmetad/
+# gcov files:
+*.gcda
+*.gcno

 tools/man-generator
+tools/man-generator.c

 test/.lib-dir-stamp
 test/.tests-stamp
@ -115,8 +102,6 @@ test/api/thin_percent.t
 test/api/vglist.t
 test/api/vgtest.t
 test/lib/aux
-test/lib/cache-mq.profile
-test/lib/cache-smq.profile
 test/lib/check
 test/lib/clvmd
 test/lib/dm-version-expected
@ -126,7 +111,6 @@ test/lib/dmstats
 test/lib/fail
 test/lib/flavour-ndev-cluster
 test/lib/flavour-ndev-cluster-lvmpolld
-test/lib/flavour-ndev-devicesfile
 test/lib/flavour-ndev-lvmetad
 test/lib/flavour-ndev-lvmetad-lvmpolld
 test/lib/flavour-ndev-lvmpolld
@ -136,7 +120,6 @@ test/lib/flavour-udev-cluster-lvmpolld
 test/lib/flavour-udev-lvmetad
 test/lib/flavour-udev-lvmetad-lvmpolld
 test/lib/flavour-udev-lvmlockd-dlm
-test/lib/flavour-udev-lvmlockd-idm
 test/lib/flavour-udev-lvmlockd-sanlock
 test/lib/flavour-udev-lvmlockd-test
 test/lib/flavour-udev-lvmpolld
@ -149,13 +132,8 @@ test/lib/lvm
 test/lib/lvm-wrapper
 test/lib/lvmchange
 test/lib/lvmdbusd.profile
-test/lib/lvmdevices
 test/lib/lvmetad
-test/lib/lvmlockctl
-test/lib/lvmlockd
 test/lib/lvmpolld
-test/lib/lvm_import_vdo
-test/lib/lvm_vdo_wrapper
 test/lib/not
 test/lib/paths
 test/lib/paths-common
@ -165,7 +143,5 @@ test/lib/test
 test/lib/thin-performance.profile
 test/lib/utils
 test/lib/version-expected
-test/lib/vgimportdevices
-
 test/unit/dmraid_t.c
 test/unit/unit-test
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@ -1,104 +0,0 @@
-stages:
-  - approve
-  - test
-
-approve1:
-  stage: approve
-  script:
-    - echo "Approved..."
-  rules:
-    # TODO: Filter only safe repositories, or user in developers
-    - if: $CI_PROJECT_PATH != "csonto/lvm2" && $CI_PROJECT_PATH != "lvmteam/lvm2"
-      when: manual
-    # TODO: for other branches than main/rhel: run pipeline only when requested:
-    - if: $CI_COMMIT_BRANCH != "main" && $CI_COMMIT_BRANCH !~ "^rhel.*"
-      when: manual
-    - when: on_success
-  allow_failure: false
-
-
-pages:
-  image: elecnix/ikiwiki
-  stage: test
-  script:
-    - ikiwiki --setup ikiwiki.setup --libdir themes/ikistrap/lib
-  artifacts:
-    paths:
-      - public
-  only:
-    refs:
-      - main
-    changes:
-      - doc/**/*
-      - ikiwiki.setup
-
-
-# TODO:
-# - check results of autoreconf and make generate - may need additional commit
-#     - we need a particular setup (rawhide OR latest supported fedora?)
-# - do make rpm and publish results as artifacts - we will use packit/COPR for this eventually
-
-# Run on any commits to main (master), rhel8, rhel9 branches
-test-job:
-  stage: test
-  parallel:
-    matrix:
-      - TAG: rhel8
-        CONFIGURE: >
-          --with-cluster=internal
-          --enable-cmirrord
-      - TAG: rhel9
-        CONFIGURE: >
-          --with-default-use-devices-file=1
-          --enable-app-machineid
-          --enable-editline
-          --disable-readline
-  artifacts:
-    paths:
-      - test/results/
-    expire_in: 1 week
-  tags:
-      - ${TAG}
-  timeout: 2h
-  script:
-    # Common options go here, diffs to the above matrix
-    - >
-      ./configure ${CONFIGURE}
-      --enable-fsadm
-      --enable-write_install
-      --enable-pkgconfig
-      --enable-cmdlib
-      --enable-dmeventd
-      --enable-blkid_wiping
-      --enable-udev_sync
-      --with-thin=internal
-      --with-cache=internal
-      --enable-lvmpolld
-      --enable-lvmlockd-dlm --enable-lvmlockd-dlmcontrol
-      --enable-lvmlockd-sanlock
-      --enable-dbus-service --enable-notify-dbus
-      --enable-dmfilemapd
-      --with-writecache=internal
-      --with-vdo=internal --with-vdo-format=/usr/bin/vdoformat
-      --with-integrity=internal
-      --disable-silent-rules
-    - make
-    - rm -rf test/results
-    - mkdir -p /dev/shm/lvm2-test
-    - mount -o remount,dev /dev/shm
-    # TODO: Need to distinguish failed test from failed harness
-    # TODO: Also need a way to find if run is incomplete, e.g. full disk resulting in many skipped tests
-    - VERBOSE=0 BATCH=1 LVM_TEST_DIR=/dev/shm/lvm2-test make check || true
-    - rm -rf /dev/shm/lvm2-test
-    - cut -d' ' -f2 test/results/list | sort | uniq -c
-    # Filter artifacts - keep only logs from tests which are not pass
-    - cd test/results && rm $(grep 'passed$' list | cut -d' ' -f1 | sed -e 's|/|_|g' -e 's|.*|\0.txt|')
-    # TODO: Keep a list of known failures, and translate into regexp - or simply use python...
-    - if grep failed test/results/list | grep -v '\\\(dbustest\|lvconvert-mirror\)\.sh' | sort; then false; else true; fi
-  rules:
-    # Filter only safe repositories, or user in developers:
-    # NOTE: Already done in approve stage, may be more caution than necessary
-    - if: $CI_PROJECT_PATH != "csonto/lvm2" && $CI_PROJECT_PATH != "lvmteam/lvm2"
-      when: manual
-    - when: on_success
-
--- a/Makefile.in
+++ b/Makefile.in
@ -38,7 +38,7 @@ ifeq ($(MAKECMDGOALS),distclean)
    udev po
 tools.distclean: test.distclean
 endif
-DISTCLEAN_DIRS += lcov_reports* autom4te.cache
+DISTCLEAN_DIRS += lcov_reports*
 DISTCLEAN_TARGETS += config.cache config.log config.status make.tmpl

 include make.tmpl
@ -47,7 +47,7 @@ include $(top_srcdir)/base/Makefile
 include $(top_srcdir)/device_mapper/Makefile
 include $(top_srcdir)/test/unit/Makefile

-lib: include libdaemon $(BASE_TARGET) $(DEVICE_MAPPER_TARGET)
+lib: libdaemon $(BASE_TARGET) $(DEVICE_MAPPER_TARGET)
 daemons: lib libdaemon tools
 scripts: lib
 tools: lib libdaemon
@ -55,7 +55,7 @@ po: tools daemons
 man: tools
 all_man: tools
 test: tools daemons
-unit-test  run-unit-test: test libdm
+unit-test  run-unit-test: test

 daemons.device-mapper: libdm.device-mapper
 tools.device-mapper: libdm.device-mapper
@ -127,7 +127,6 @@ all_man:

 install_system_dirs:
 	$(INSTALL_DIR) $(DESTDIR)$(DEFAULT_SYS_DIR)
-	$(INSTALL_ROOT_DIR) $(DESTDIR)$(DEFAULT_SYS_DIR)/devices
 	$(INSTALL_ROOT_DIR) $(DESTDIR)$(DEFAULT_ARCHIVE_DIR)
 	$(INSTALL_ROOT_DIR) $(DESTDIR)$(DEFAULT_BACKUP_DIR)
 	$(INSTALL_ROOT_DIR) $(DESTDIR)$(DEFAULT_CACHE_DIR)
@ -172,7 +171,6 @@ help:
 	@echo "  lcov-dated		Generate lcov with timedate suffix."
 	@echo "  lcov-reset		Reset lcov counters"
 	@echo "  man			Build man pages."
-	@echo "  print-VARIABLE		Resolve make variable."
 	@echo "  rpm			Build rpm."
 	@echo "  run-unit-test		Run unit tests."
 	@echo "  tags			Generate c/etags."
--- a/29
+++ b/29
@ -1,5 +1,7 @@
 This tree contains the LVM2 and device-mapper tools and libraries.

+This is development branch, for stable 2.02 release see stable-2.02 branch.
+
 For more information about LVM2 read the changelog in the WHATS_NEW file.
 Installation instructions are in INSTALL.

@ -10,30 +12,20 @@ Tarballs are available from:
  https://github.com/lvmteam/lvm2/releases

 The source code is stored in git:
-  https://gitlab.com/lvmteam/lvm2
-Clone:
-  git clone git@gitlab.com:lvmteam/lvm2.git
-Anonymous access:
-  git clone https://gitlab.com/lvmteam/lvm2.git
-Mirrored to:
-* https://github.com/lvmteam/lvm2
+  https://sourceware.org/git/?p=lvm2.git
+  git clone git://sourceware.org/git/lvm2.git
+mirrored to:
+  https://github.com/lvmteam/lvm2
  git clone https://github.com/lvmteam/lvm2.git
  git clone git@github.com:lvmteam/lvm2.git
-* https://sourceware.org/git/?p=lvm2.git
-  git clone https://sourceware.org/git/lvm2.git
-  git clone git://sourceware.org/git/lvm2.git

 Mailing list for general discussion related to LVM2:
-  linux-lvm@lists.linux.dev
-  Subscribe via email to: linux-lvm+subscribe@lists.linux.dev
-  Archive https://lore.kernel.org/linux-lvm/
-  Older archive https://listman.redhat.com/archives/linux-lvm/
+  linux-lvm@redhat.com
+  Subscribe from https://www.redhat.com/mailman/listinfo/linux-lvm

 Mailing lists for LVM2 development, patches and commits:
-  lvm-devel@lists.linux.dev
-  Subscribe via email to: lvm-devel+subscribe@lists.linux.dev
-  Archive https://lore.kernel.org/lvm-devel/
-  Older archive https://listman.redhat.com/archives/lvm-devel/
+  lvm-devel@redhat.com
+  Subscribe from https://www.redhat.com/mailman/listinfo/lvm-devel

  lvm2-commits@lists.fedorahosted.org (Read-only archive of commits)
  Subscribe from https://fedorahosted.org/mailman/listinfo/lvm2-commits
@ -49,7 +41,6 @@ Website:
 Report upstream bugs at:
  https://bugzilla.redhat.com/enter_bug.cgi?product=LVM%20and%20device-mapper
 or open issues at:
-  https://gitlab.com/groups/lvmteam/-/issues
  https://github.com/lvmteam/lvm2/issues

 The source code repository used until 7th June 2012 is accessible using CVS:
--- a/7
+++ b/7
@ -21,15 +21,10 @@ You MUST disable (or mask) any LVM daemons:
 - clvmd
 - cmirrord

-Some lvm.conf options should be set:
-
- global/event_activation = 0
- activation/monitoring = 0
-
 For running cluster tests, we are using singlenode locking. Pass
 `--with-clvmd=singlenode` to configure.

-NOTE: This is useful only for testing, and should not be used in production
+NOTE: This is useful only for testing, and should not be used in produciton
 code.

 To run D-Bus daemon tests, existing D-Bus session is required.
--- a/2
+++ b/2
@ -1 +1 @@
-2.03.28(2)-git (2024-10-02)
+2.03.16(2)-git (2022-02-07)
--- a/2
+++ b/2
@ -1 +1 @@
-1.02.202-git (2024-10-02)
+1.02.185-git (2022-02-07)
--- a/336
+++ b/336
@ -1,183 +1,5 @@
-Version 2.03.28 - 
-==================
-
-Version 2.03.27 - 02nd October 2024
-===================================
-  Fix swap device size detection using blkid for lvresize/lvreduce/lvextend.
-  Detect GPT partition table and pass partition filter if no partitions defined.
-  Add global/sanlock_align_size option to configure sanlock lease size.
-  Disable mem locking when activation/reserved_stack or reserved_memory is 0.
-  Fix locking issues in lvmlockd leaving thin pool locked.
-  Deprecate vdo settings vdo_write_policy and vdo_write_policy.
-  Lots of typo fixes across lvm2 code base (codespell).
-  Corrected integrity parameter interleave_sectors for DM table line.
-  Ignore -i|--stripes, -I|--stripesize for lvextend on raid0 LV, like raid10.
-  Do not accept duplicate device names for pvcreate.
-
-Version 2.03.26 - 23rd August 2024
-==================================
-  Fix internal error reported by pvmove on a VG with single PV.
-  Also accept --mknodes --refresh for vgscan.
-  Fix vgmknodes --refresh to wait for udev before checking /dev content.
-  Use log/report_command_log=1 config setting by default for JSON output format.
-  Fix unreleased memory pools on RAID lvextend.
-  Add --integritysettings option to manipulate dm-integrity settings.
-
-Version 2.03.25 - 12nd July 2024
-================================
-  Utilize more radix_tree instead of dm_hash and btree.
-  Refactor DM uuid caching from device_mapper directory.
-  Enhance checking for DM uuid device.
-  Fix lvm shell command completion on tab key (2.03.24).
-  Avoid lockd_vg call to lvmlockd for local VGs.
-  Allow forced change of locktype from none.
-  Handle OPTIONS defined in /etc/sysconfig/lvmlockd.
-
-Version 2.03.24 - 16th May 2024
-===============================
-  Lvconvert supports VDO options for thin-pool with vdo conversion.
-  Improve placement to .data.rel.ro and .rodata sections.
-  Fix support for -y and -W when creating thinpool with vdo.
-  Better support for runtime valgrind detection.
-  Allow command interruption when communicating with dmeventd.
-  Fix resize of VDO volume used for thin pool data volume.
-  Use -Wl,-z,now and -Wl,--as-needed for compilation by default.
-  Require 3.7 as minimal version for sanlock.
-  Share code for closing opened descriptors on program startup.
-  Fix memleak in lvmcache.
-  Add configure --with-default-event-activation=ON setting.
-  Fix return value from reporter function when hitting internal error.
-  Skip checking of pools for lvremove and vgremove commands.
-  VDO modprobes dm-vdo for 6.9 kernel and kvdo for older kernel version.
-  Fix lvs reporting for VDO volumes with new upstream kernel driver.
-  Don't import DM_UDEV_DISABLE_OTHER_RULES_FLAG in LVM rules, DM rules cover it.
-  Fix table line generation for cache snapshots using cachevol.
-  Enhance lvconvert support for external origins stacking.
-  When swapping LV names also swap properties like hostname, time and data.
-  Fix removal of stacked external origins.
-  Lock filesystem when converting volume to read-only external origin.
-  Support external origin between different thin-pool.
-  Improve validation of acceptable volumes for external origins.
-  Reduce amount of preloaded devices for complex device trees.
-  Avoid logging problems from monitoring snapshots with inactive origins.
-  Check for cache policy module presence in kernel's builtin modules file.
-  Add configure --with-modulesdir to select kernel modules directory.
-  Support creation of thin-pool with VDO use for its data volume.
-
-Version 2.03.23 - 21st November 2023
+Version 2.03.16 - 
 ====================================
-  Set the first lv_attr flag for raid integrity images to i or I.
-  Add -A option for pvs and pvscan to show PVs outside devices file.
-  Improve searched_devnames temp file usage to prevent redundant scanning.
-  Change default search_for_devnames from auto to all.
-  Add lvmdevices --refresh to search for missing PVIDs on all devices.
-  Add comparison between old and new entries in lvmdevices --check.
-  Fix device_id matching order - match non-devname first.
-  Fix "lvconvert -m 0" when there is other than first in-sync leg.
-  Use system.devices as default for dmeventd when dmeventd.devices is undefined.
-  Accept WWIDs containing QEMU HARDDISK for device_id.
-  Improve handling of non-standard WWID prefixes used for device_id.
-  Configure automatically enables cmdlib for dmeventd and notify-dbus for dbus.
-  Fix hint calculation for pools with zero or error segment.
-  Configure supports --disable-shared to build only static binaries.
-  Configure supports --without-{blkid|systemd|udev} for easier static build.
-  Refresh device ids if the system changes.
-  Fix pvmove when specifying raid components as moved LVs.
-  Enhance error detection for lvm_import_vdo.
-  Support PV lists with thin lvconvert.
-  Fix support for lvm_import_vdo with SCSI VDO volumes.
-  Fix locking issue leading to hanging concurrent vgchange --refresh.
-  Recognise lvm.conf report/headings=2 for full column names in report headings.
-  Add --headings none|abbrev|full cmd line option to set report headings type.
-  Fix conversion to thin pool using lvmlockd.
-  Fix conversion from thick into thin volume using lvmlockd.
-  Require writable LV for conversion to vdo pool.
-  Fix return value from lvconvert integrity remove.
-  Preserve UUID for pool metadata spare.
-  Preserve UUID for swapped pool metadata.
-  Rewrite validation of device name entries used as device_id.
-
-version 2.03.22 - 02nd August 2023
-==================================
-  Fix pv_major/pv_minor report field types so they are integers, not strings.
-  Add lvmdevices --delnotfound to delete entries for missing devices.
-  Always use cachepool name for metadata backup LV for lvconvert --repair.
-  Make metadata backup LVs read-only after pool's lvconvert --repair.
-  Improve VDO and Thin support with lvmlockd.
-  Handle 'lvextend --usepolicies' for pools for all activation variants.
-  Fix memleak in vgchange autoactivation setup.
-  Update py-compile building script.
-  Support conversion from thick to fully provisioned thin LV.
-  Cache/Thin-pool can use error and zero volumes for testing.
-  Individual thin volume can be cached, but cannot take snapshot.
-  Better internal support for handling error and zero target (for testing).
-  Resize COW above trimmed maximal size is does not return error.
-  Support parsing of vdo geometry format version 4.
-  Add lvm.conf thin_restore and cache_restore settings.
-  Handle multiple mounts while resizing volume with a FS.
-  Handle leading/trailing spaces in sys_wwid and sys_serial used by device_id.
-  Enhance lvm_import_vdo and use snapshot when converting VDO volume.
-  Fix parsing of VDO metadata.
-  Fix failing -S|--select for non-reporting cmds if using LV info/status fields.
-  Allow snapshots of raid+integrity LV.
-  Fix multisegment RAID1 allocator to prevent using single disk for more legs.
-
-version 2.03.21 - 21st April 2023
-=================================
-  Fix activation of vdo-pool for with 0 length headers (converted pools).
-  Avoid printing internal init messages when creation integration devices.
-  Allow (write)cache over raid+integrity LV.
-
-version 2.03.20 - 21st March 2023
-=================================
-  Fix segfault if using -S|--select with log/report_command_log=1 setting.
-  Configure now fails when requested lvmlockd dependencies are missing.
-  Add some configure Gentoo enhancements for static builds.
-
-version 2.03.19 - 21st February 2023
-====================================
-  Configure supports --with-systemd-run executed from udev rules.
-  Enhancement for build with MuslC systemd and non-bash system shells (dash).
-  Do not reset SYSTEMD_READY variable in udev for PVs on MD and loop devices.
-  Ensure udev is processing origin LV before its thick snapshots LVs.
-  Fix and improve runtime memory size detection for VDO volumes.
-
-version 2.03.18 - 22nd December 2022
-====================================
-  Fix issues reported by coverity scan.
-  Fix warning for thin pool overprovisioning on lvextend (2.03.17).
-  Add support for writecache metadata_only and pause_writeback settings.
-  Fix missing error messages in lvmdbusd.
-
-Version 2.03.17 - 10th November 2022
-====================================
-  Add new options (--fs, --fsmode) for FS handling when resizing LVs.
-  Fix 'lvremove -S|--select LV' to not also remove its historical LV right away.
-  Fix lv_active field type to binary so --select and --binary applies properly.
-  Switch to use mallinfo2 and use it only with glibc.
-  Error out in lvm shell if using a cmd argument not supported in the shell.
-  Fix lvm shell's lastlog command to report previous pre-command failures.
-  Keep libaio locked in memory in critical section.
-  Extend VDO and VDOPOOL without flushing and locking fs.
-  Add --valuesonly option to lvmconfig to print only values without keys.
-  Updates configure with recent autoconf tooling.
-  Fix lvconvert --test --type vdo-pool execution.
-  Add json_std output format for more JSON standard compliant version of output.
-  Fix vdo_slab_size_mb value for converted VDO volume.
-  Fix many corner cases in device_id, including handling of S/N duplicates.
-  Fix various issues in lvmdbusd.
-
-Version 2.03.16 - 18th May 2022
-===============================
-  Fix segfault when handling selection with historical LVs.
-  Add support --vdosettings with lvcreate, lvconvert, lvchange.
-  Filtering multipath devices respects blacklist setting from multipath
-  configuration.
-  lvmdevices support for removing by device id using --deviceidtype and
-  --deldev.
-  Display writecache block size with lvs -o writecache_block_size.
-  Improve cachesettings description in man lvmcache.
-  Fix losing of delete message on thin-pool extension.

 Version 2.03.15 - 07th February 2022
 ====================================
@ -264,8 +86,8 @@ Version 2.03.12 - 07th May 2021
  Fix problem with unbound variable usage within fsadm.
  Fix IMSM MD RAID detection on 4k devices.
  Check for presence of VDO target before starting any conversion.
-  Support metadata profiles with volume VDO pool conversions.
-  Support -Zn for conversion of already formatted VDO pools.
+  Support metatadata profiles with volume VDO pool conversions.
+  Support -Zn for conversion of already formated VDO pools.
  Avoid removing LVs on error path of lvconvert during creation volumes.
  Fix crashing lvdisplay when thin volume was waiting for merge.
  Support option --errorwhenfull when converting volume to thin-pool.
@ -295,7 +117,7 @@ Version 2.03.11 - 08th January 2021
  Enhance error handling for fsadm and handle correct fsck result.
  Dmeventd lvm plugin ignores higher reserved_stack lvm.conf values.
  Support using BLKZEROOUT for clearing devices.
-  Support interruption when wiping LVs.
+  Support interruption when wipping LVs.
  Support interruption for bcache waiting.
  Fix bcache when device has too many failing writes.
  Fix bcache waiting for IO completion with failing disks.
@ -338,7 +160,7 @@ Version 2.03.10 - 09th August 2020

 Version 2.03.09 - 26th March 2020
 =================================
-  Fix formatting of vdopool (vdo_slab_size_mb was smaller by 2 bits).
+  Fix formating of vdopool (vdo_slab_size_mb was smaller by 2 bits).
  Fix showing of a dm kernel error when uncaching a volume with cachevol.

 Version 2.03.08 - 11th February 2020
@ -422,7 +244,7 @@ Version 2.03.03 - 07th June 2019
  Ignore foreign and shared PVs for pvscan online files.
  Add config setting to control fields in debug file and verbose output.
  Add command[pid] and timestamp to debug file and verbose output.
-  Fix missing growth of _pmspare volume when extending _tmeta volume.
+  Fix missing growth of _pmsmare volume when extending _tmeta volume.
  Automatically grow thin metadata, when thin data gets too big.
  Add synchronization with udev before removing cached devices.
  Add support for caching VDO LVs and VDOPOOL LVs.
@ -435,14 +257,14 @@ Version 2.03.03 - 07th June 2019
  Change scan_lvs default to 0 so LVs are not scanned for PVs.
  Thin-pool selects power-of-2 chunk size by default.
  Cache selects power-of-2 chunk size by default.
-  Support resizing for VDOPoolLV and VDOLV.
+  Support reszing for VDOPoolLV and VDOLV.
  Improve -lXXX%VG modifier which improves cache segment estimation.
  Ensure migration_threshold for cache is at least 8 chunks.
  Restore missing man info lvcreate --zero for thin-pools.
-  Drop misleading comment for metadata minimum_io_size for VDO segment.
+  Drop misleadning comment for metadata minimum_io_size for VDO segment.
  Add device hints to reduce scanning.
  Introduce LVM_SUPPRESS_SYSLOG to suppress syslog usage by generator.
-  Fix generator querying lvmconfig unpresent config option.
+  Fix generator quering lvmconfig unpresent config option.
  Fix memleak on bcache error path code.
  Fix missing unlock on lvm2 dmeventd plugin error path initialization.
  Improve Makefile dependency tracking.
@ -504,7 +326,7 @@ Version 2.02.178-rc1 - 24th May 2018
  --with-cache switch for ./configure has been removed.
  Include new unit-test framework and unit tests.
  Extend validation of region_size for mirror segment.
-  Reload whole device stack when reinitializing mirror log.
+  Reload whole device stack when reinitilizing mirror log.
  Mirrors without monitoring are WARNING and not blocking on error.
  Detect too big region_size with clustered mirrors.
  Fix evaluation of maximal region size for mirror log.
@ -549,7 +371,7 @@ Version 2.02.178-rc1 - 24th May 2018
  Restore pvmove support for wide-clustered active volumes (2.02.177).
  Avoid non-exclusive activation of exclusive segment types.
  Fix trimming sibling PVs when doing a pvmove of raid subLVs.
-  Preserve exclusive activation during thin snapshot merge.
+  Preserve exclusive activation during thin snaphost merge.
  Avoid exceeding array bounds in allocation tag processing.
  Add --lockopt to common options and add option to skip selected locks.

@ -565,7 +387,7 @@ Version 2.02.177 - 18th December 2017
  Fix lvmlockd to use pool lock when accessing _tmeta volume.
  Report expected sanlock_convert errors only when retries fail.
  Avoid blocking in sanlock_convert on SH to EX lock conversion.
-  Deactivate missing raid LV legs (_rimage_X-missing_Y_Z) on deactivation.
+  Deactivate missing raid LV legs (_rimage_X-missing_Y_Z) on decativation.
  Skip read-modify-write when entire block is replaced.
  Categorise I/O with reason annotations in debug messages.
  Allow extending of raid LVs created with --nosync after a failed repair.
@ -587,7 +409,7 @@ Version 2.02.177 - 18th December 2017
  Check raid reshape flags in vg_validate().
  Add support for pvmove of cache and snapshot origins.
  Avoid using precommitted metadata for suspending pvmove tree.
-  Enhance pvmove locking.
+  Ehnance pvmove locking.
  Deactivate activated LVs on error path when pvmove activation fails.
  Add "io" to log/debug_classes for logging low-level I/O.
  Eliminate redundant nested VG metadata in VG struct.
@ -677,13 +499,13 @@ Version 2.02.173 - 20th July 2017

 Version 2.02.172 - 28th June 2017
 =================================
-  Add missing NULL to argv array when splitting cmdline arguments.
+  Add missing NULL to argv array when spliting cmdline arguments.
  Add display_percent helper function for printing percent values.
  lvconvert --repair handles failing raid legs (present but marked 'D'ead).
  Do not lvdisplay --maps unset settings of cache pool.
  Fix lvdisplay --maps for cache pool without policy settings.
  Support aborting of flushing cache LV.
-  Re-enable conversion of data and metadata thin-pool volumes to raid.
+  Reenable conversion of data and metadata thin-pool volumes to raid.
  Improve raid status reporting with lvs.
  No longer necessary to '--force' a repair for RAID1.
  Linear to RAID1 upconverts now use "recover" sync action, not "resync".
@ -751,7 +573,7 @@ Version 2.02.169 - 28th March 2017
  Support cache segment with configurable metadata format.
  Add allocation/cache_metadata_format profilable settings.
  Use function cache_set_params() for both lvcreate and lvconvert.
-  Skip rounding on cache chunk size boundary when create cache LV.
+  Skip rounding on cache chunk size boudary when create cache LV.
  Improve cache_set_params support for chunk_size selection.
  Fix metadata profile allocation/cache_[mode|policy] setting.
  Fix missing support for using allocation/cache_pool_chunk_size setting.
@ -801,8 +623,8 @@ Version 2.02.169 - 28th March 2017
  Extend metadata validation of external origin LV use count.
  Fix dm table when the last user of active external origin is removed.
  Improve reported lvs status for active external origin volume.
-  Fix table load for split RAID LV and require explicit activation.
-  Always active split RAID LV exclusively locally.
+  Fix table load for splitted RAID LV and require explicit activation.
+  Always active splitted RAID LV exclusively locally.
  Do not use LV RAID status bit for segment status.
  Check segtype directly instead of checking RAID in segment status.
  Reusing exiting code for raid image removal.
@ -865,7 +687,7 @@ Version 2.02.166 - 26th September 2016
  Use --alloc normal for mirror logs even if the mimages were stricter.
  Use O_DIRECT to gather metadata in lvmdump.
  Ignore creation_time when checking for matching metadata for lvmetad.
-  Fix possible NULL pointer dereference when checking for monitoring.
+  Fix possible NULL pointer derefence when checking for monitoring.
  Add lvmreport(7) man page.
  Don't install lvmraid(7) man page when raid excluded. (2.02.165)
  Report 0% as dirty (copy%) for cache without any used block.
@ -905,7 +727,7 @@ Version 2.02.164 - 15th August 2016
 Version 2.02.163 - 10th August 2016
 ===================================
  Add profile for lvmdbusd which uses lvm shell json report output.
-  Restrict in-command modification of some params in lvm shell.
+  Restrict in-command modification of some parms in lvm shell.
  Apply LVM_COMMAND_PROFILE early for lvm shell.
  Refactor reporting so lvm shell log report collects whole of cmd execution.
  Support LVM_*_FD envvars to redirect output to file descriptors.
@ -1058,11 +880,11 @@ Version 2.02.152 - 30th April 2016
 ==================================
  Use any inherited tags when wiping metadata sub LVs to ensure activation.
  Add str_list_wipe.
-  Improve support for interrupting processing of volumes during lvchange.
+  Improve support for interrupting procesing of volumes during lvchange.
  Use failed command return code when lvchanging read-only volume.
  Show creation transaction_id and zeroing state of pool with thin volume.
  Stop checking for dm_cache_mq policy with cache target 1.9 (alias to smq).
-  Check first /sys/module/dm_* dir existence before using modprobe.
+  Check first /sys/module/dm_* dir existance before using modprobe.
  Remove mpath from 10-dm.rules, superseded by 11-dm-mpath.rules (mpath>=0.6.0).

 Version 2.02.151 - 23rd April 2016
@ -1087,7 +909,7 @@ Version 2.02.150 - 9th April 2016
 =================================
  Avoid using flushing dm status ioctl when checking for usable DM device.
  Check for devices without LVM- uuid prefix only with kernels < 3.X.
-  Reuse %FREE size approximation with lvcreate -l%PVS thin-pool.
+  Reuse %FREE size aproximation with lvcreate -l%PVS thin-pool.
  Allow the lvmdump directory to exist already provided it is empty.
  Show lvconverted percentage with 2 decimal digits.
  Fix regression in suspend when repairing --type mirror (2.02.133).
@ -1164,7 +986,7 @@ Version 2.02.143 - 21st February 2016
  Fix error path when sending thin-pool message fails in update_pool_lv().
  Support reporting CheckNeeded and Fail state for thin-pool and thin LV.
  For failing thin-pool and thin volume correctly report percentage as INVALID.
-  Report -1, not 'unknown' for lv_{snapshot_invalid,merge_failed} with --binary.
+  Report -1, not 'unkown' for lv_{snapshot_invalid,merge_failed} with --binary.
  Add configure --enable-dbus-service for an LVM D-Bus service.
  Replace configure --enable-python_bindings with python2 and python3 versions.
  If PV belongs to some VG and metadata missing, skip it if system ID is used.
@ -1193,7 +1015,7 @@ Version 2.02.141 - 25th January 2016
  Restore support for command breaking in process_each_lv_in_vg() (2.02.118).
  Use correct mempool when process_each_lv_in_vg() (2.02.118).
  Fix lvm.8 man to show again prohibited suffixes.
-  Fix configure to set proper use_blkid_wiping if autodetection as disabled.
+  Fix configure to set proper use_blkid_wiping if autodetected as disabled.
  Initialise udev in clvmd for use in device scanning. (2.02.116)
  Add seg_le_ranges report field for common format when displaying seg devices.
  Honour report/list_item_separator for seg_metadata_le_ranges report field.
@ -1343,7 +1165,7 @@ Version 2.02.129 - 26th August 2015
  Fix shared library generation to stop exporting internal functions.(2.02.120)
  Accept --cachemode with lvconvert.
  Fix and improve reporting properties of cache-pool.
-  Enable usage of --cachepolicy and --cachesettings with lvconvert.
+  Enable usage of --cachepolicy and --cachesetting with lvconvert.
  Don't allow to reduce size of thin-pool metadata.
  Fix debug buffer overflows in cmirrord logging.
  Add --foreground and --help to cmirrord.
@ -1500,7 +1322,7 @@ Version 2.02.119 - 2nd May 2015
  Add --enable-halvm and --disable-halvm options to lvmconf script.
  Add --services, --mirrorservice and --startstopservices option to lvmconf.
  Use proper default value of global/use_lvmetad when processing lvmconf script.
-  Respect allocation/cling_tag_list during initial contiguous allocation.
+  Respect allocation/cling_tag_list during intial contiguous allocation.
  Add A_PARTITION_BY_TAGS set when allocated areas should not share tags.
  Make changes persist with python addTag/removeTag.
  Set correct vgid when updating cache when writing PV metadata.
@ -1578,7 +1400,7 @@ Version 2.02.116 - 30th January 2015
  Scan pools in for_each_sub_lv() and add for_each_sub_lv_except_pools().
  Fix lvm2app lvm_lv_get_property return value for fields with info/status ioctl.
  Fix lvm2app regression in lvm_lv_get_attr causing unknown values (2.02.115).
-  Set default cache_mode to writethrough when missing in metadata.
+  Set default cache_mode to writehrough when missing in metadata.
  Preserve chunk size with repair and metadata swap of a thin pool.
  Fix raid --splitmirror 1 functionality (2.02.112).
  Fix tree preload to handle splitting raid images.
@ -1644,13 +1466,13 @@ Version 2.02.112 - 11th November 2014
  Properly report error when taking snapshot of any cache type LV.
  Add basic thread debugging messages to dmeventd.
  Include threads being shutdown in dmeventd device registration responses.
-  Initial support for external users of thin pools based on transaction_id.
+  Inital support for external users of thin pools based on transaction_id.
  Report some basic percentage info for cache pools.
  Introduce size_mb_arg_with_percent() for advanced size arg reading.
  Add extra support for '.' as decimal point in size args.
  Add configure parameters for default segment type choices.
  Add global/sparse_segtype_default setting to use thin for --type sparse.
-  Update and correct lvcreate and lvconvert man pages.
+  Update and correct lvcreate and lvcovert man pages.
  Mark pools and snapshots as unzeroable volumes.
  Check for zeroing of volume after segment type is fully detected.
  Better support for persistent major and minor options with lvcreate.
@ -1703,7 +1525,7 @@ Version 2.02.112 - 11th November 2014
  Support DEBUG_MEMLOCK to trap unsupported mmap usage.
  Enable cache segment type by default.
  Ensure only supported volume types are used with cache segments.
-  Fix inability to specify cachemode when 'lvconvert'ing to cache-pool.
+  Fix inablility to specify cachemode when 'lvconvert'ing to cache-pool.
  Grab cluster lock for active LVs when setting clustered attribute.
  Use va_copy to properly pass va_list through functions.
  Add function to detect rotational devices.
@ -1771,7 +1593,7 @@ Version 2.02.108 - 23rd July 2014
  Enhance lvconvert thin, thinpool, cache and cachepool command line support.
  Display 'C' only for cache and cache-pool target types in lvs.
  Prompt for confirmation before change LV into a snapshot exception store.
-  Return proper error codes for some failing lvconvert functions.
+  Return proper error codes for some failing lvconvert funtions.
  Add initial code to use cache tools (cache_check|dump|repair|restore).
  Support lvdisplay --maps for raid.
  Add --activationmode degraded to activate degraded raid volumes by default.
@ -1790,7 +1612,7 @@ Version 2.02.108 - 23rd July 2014
  Support lvremove -ff to remove thin volumes from broken thin pools.
  Require --yes to skip raid repair prompt.
  Change makefile %.d generation to handle filename changes without make clean.
-  Fix use of builddir in make pofile.
+  Fix use of buildir in make pofile.
  Enhance private volumes UUIDs with suffixed for easier detection.
  Do not use reserved _[tc]meta volumes for temporary LVs.
  Leave backup pool metadata with _meta%d suffix instead of reserved _tmeta%d.
@ -1895,7 +1717,7 @@ Version 2.02.106 - 10th April 2014
  Include 'lvm dumpconfig --type missing' and '--type diff' output to lvmdump.
  Return failure when specifying negative size for pvresize.
  Fix memory corruption in cmd context refresh if clvmd leaks opened device.
-  Reinitialize lvmcache properly on fork to fix premature polldaemon exit.
+  Reinitialise lvmcache properly on fork to fix premature polldaemon exit.
  Add 'lvm dumpconfig --type diff' to show differences from defaults.
  Fix swap signature detection for devices smaller then 2MB.
  Use dm_malloc function in clvmd.c.
@ -1922,7 +1744,7 @@ Version 2.02.106 - 10th April 2014
  Don't print an error and accept empty value for global/thin_disabled_features.
  Update API for internal function build_dm_uuid().
  Do not try to check empty pool with scheduled messages.
-  Fix return value in pool_has_message() when querying for any message.
+  Fix return value in pool_has_message() when quering for any message.
  Cleanup all client resources on clvmd exit.
  Use dm_zalloc to clear members of clvmd client struct.
  Use BLKID_CFLAGS when compiling with blkid support.
@ -1964,7 +1786,7 @@ Version 2.02.106 - 10th April 2014
  Fix test when checking target version for available thin features.
  Detect thin feature external_origin_extend and limit extend when missing.
  Rename internal pool_can_resize_metadata() to thin_pool_feature_supported().
-  Issue error if libblkid detects signature and fails to return offset/length.
+  Issue error if libbblkid detects signature and fails to return offset/length.
  Update autoconf config.guess/sub to 2014-01-01.
  Online thin pool metadata resize requires 1.10 kernel thin pool target.

@ -2037,7 +1859,7 @@ Version 2.02.104 - 13th November 2013
 =====================================
  Workaround VG refresh race during autoactivation by retrying the refresh.
  Handle failures in temporary mirror used when adding images to mirrors.
-  Fix and improve logic for implicitly exclusive activations.
+  Fix and improve logic for implicitely exclusive activations.
  Return success when LV cannot be activated because of volume_list filter.
  Return proper error state for remote exclusive activation.
  Fix missing lvmetad scan for PVs found on MD partitions.
@ -2200,11 +2022,11 @@ Version 2.02.99 - 24th July 2013
  Add support for persistent flagging of LVs to be skipped during activation.
  Add --type profilable to lvm dumpconfig to show profilable config settings.
  Add --mergedconfig to lvm dumpconfig for merged --config/--profile/lvm.conf.
-  Release memory and unblock signals in lock_vol error path.
+  Relase memory and unblock signals in lock_vol error path.
  Define LVM2_* command errors in lvm2cmd.h and use in dmeventd plugins.
  Move errors.h to tools dir.
  Add man page entries for profile configuration and related options.
-  Improve error logging when user tries to interrupt commands.
+  Improve error loging when user tries to interrupt commands.
  Rename _swap_lv to _swap_lv_identifiers and move to allow an additional user.
  Rename snapshot segment returning methods from find_*_cow to find_*_snapshot.
  liblvm/python API: Additions: PV create/removal/resize/listing
@ -2405,7 +2227,7 @@ Version 2.02.98 - 15th October 2012
  Do not start dmeventd for lvchange --resync when monitoring is off.
  Remove pvscan --cache from lvm2-lvmetad init script.
  Remove ExecStartPost with pvscan --cache from lvm2-lvmetad.service.
-  Report invalid percentage for property snap_percent of non-snapshot LVs.
+  Report invalid percentage for property snap_percent of non-snaphot LVs.
  Disallow conversion of thin LVs to mirrors.
  Fix lvm2api data_percent reporting for thin volumes.
  Do not allow RAID LVs in a clustered volume group.
@ -2455,7 +2277,7 @@ Version 2.02.98 - 15th October 2012

 Version 2.02.97 - 7th August 2012
 =================================
-  Improve documentation of allocation policies in lvm.8.
+  Improve documention of allocation policies in lvm.8.
  Increase limit for major:minor to 4095:1048575 when using -My option.
  Add make install_systemd_generators.
  Add generator for lvm2 activation systemd units.
@ -2539,7 +2361,7 @@ Version 2.02.96 - 8th June 2012
  Check for buffer overwrite in get_cluster_type() in clvmd.
  Fix global/detect_internal_vg_cache_corruption config check.
  Update lcov Makefile target to support all dmeventd plugins.
-  Fix initialization of thin monitoring. (2.02.92)
+  Fix initializiation of thin monitoring. (2.02.92)
  Cope with improperly formatted device numbers in /proc/devices. (2.02.91)
  Exit if LISTEN_PID environment variable incorrect in lvmetad systemd handover.
  Use pvscan --cache instead of vgscan in lvmetad scripts.
@ -2552,7 +2374,7 @@ Version 2.02.96 - 8th June 2012
  Add --with-thin-check configure option for path to thin_check.
  Fix error message when pvmove LV activation fails with name already in use.
  Better structure layout for device_info in dev_subsystem_name().
-  Change message severity for creation of VG over uninitialized devices.
+  Change message severity for creation of VG over uninitialised devices.
  Fix error path for failed toolcontext creation.
  Detect lvm binary path in lvmetad udev rules.
  Don't unlink socket on lvmetad shutdown if instantiated from systemd.
@ -2587,7 +2409,7 @@ Version 2.02.94 - 3rd March 2012
  Add some close() and dev_close() error path backtraces.
  Set stdin/stdout/stderr to /dev/null for polldaemon.
  Limit the max size of processed clvmd message to ~8KB.
-  Do not send uninitialized bytes in cluster error reply messages.
+  Do not send uninitialised bytes in cluster error reply messages.
  Use unsigned type for bitmask instead of enum type for lvm properties.
  Add missing cleanup of excl_uuid hash on some exit paths of clvmd.
  Check for existence of vg_name in _format1/_pool_vg_read().
@ -2660,7 +2482,7 @@ Version 2.02.91 - 12th February 2012

 Version 2.02.90 - 1st February 2012
 ===================================
-  sync_local_dev_names before (re)activating mirror log for initialization.
+  sync_local_dev_names before (re)activating mirror log for initialisation.
  Disable partial activation for thin LVs and LVs with all missing segments.
  Do not print warning for pv_min_size between 512KB and 2MB.
  Clean up systemd unit ordering and requirements.
@ -2679,7 +2501,7 @@ Version 2.02.89 - 26th January 2012
  Add data_percent and metadata_percent for thin pools to lvs -v.
  Add data_lv & metadata_lv fields to lvs for thin pools.
  Add data_percent & pool_lv fields to lvs for thin volumes.
-  Rename origin_only param to use_layer for lv_info and use with thin LVs.
+  Rename origin_only parm to use_layer for lv_info and use with thin LVs.
  Add lv_thin_pool_transaction_id to read the transaction_id value.
  Use {suspend,resume}_origin_only when up-converting RAID, as mirrors do.
  Always add RAID metadata LVs to deptree (even when origin_only is set).
@ -2709,7 +2531,7 @@ Version 2.02.89 - 26th January 2012
  Add _dev_init to initialize common struct device members.
  Always zalloc struct device during initialization.
  Fix missing thread list manipulation protection in dmeventd.
-  Do not dereference lv pointer in _percent_run() function before NULL check.
+  Do not derefence lv pointer in _percent_run() function before NULL check.
  Allow empty strings for description and creation_host config fields.
  Issue deprecation warning when removing last lvm1-format snapshot.
  Reinstate support for snapshot removal with lvm1 format. (2.02.86)
@ -2780,11 +2602,11 @@ Version 2.02.89 - 26th January 2012
  Change vg_revert to void and remove superfluous calls after failed vg_commit.
  Use execvp for CLVMD restart to preserve environment settings.
  Restart CLVMD with same cluster manager.
-  Fix log_error() usage in raid and unknown segtype initialization.
+  Fix log_error() usage in raid and unknown segtype initialisation.
  Improve testing Makefile.
  Fix install_ocf make target when srcdir != builddir. (2.02.80)
  Support env vars LVM_CLVMD_BINARY and LVM_BINARY in clvmd.
-  Fix restart of clvmd (preserve exclusive locks). (2.02.64)
+  Fix restart of clvmd (preserve exlusive locks). (2.02.64)
  Add 'Volume Type' lv_attr characters for RAID and RAID_IMAGE.
  Add activation/retry_deactivation to lvm.conf to retry deactivation of an LV.
  Replace open_count check with holders/mounted_fs check on lvremove path.
@ -2850,13 +2672,13 @@ Version 2.02.87 - 12th August 2011
  Cache and share generated VG structs.
  Fix possible format instance memory leaks and premature releases in _vg_read.
  Suppress locking error messages in monitoring init scripts.
-  If pipe in clvmd fails return busy instead of using uninitialized descriptors.
+  If pipe in clvmd fails return busy instead of using uninitialised descriptors.
  Add ability to reduce the number of mirrors in raid1 arrays to lvconvert.
  Add dmeventd plugin for raid.
  Replace free_vg with release_vg and move it to vg.c.
  Remove INCONSISTENT_VG flag from the code.
  Remove lock from cache in _lock_vol even if unlock fails.
-  Initialize clvmd locks before lvm context to avoid open descriptor leaks.
+  Initialise clvmd locks before lvm context to avoid open descriptor leaks.
  Remove obsolete gulm clvmd cluster locking support.
  Suppress low-level locking errors and warnings while using --sysinit.
  Remove unused inconsistent_seqno variable in _vg_read().
@ -2929,7 +2751,7 @@ Version 2.02.85 - 29th April 2011
  Issue discards on lvremove and lvreduce etc. if enabled and supported.
  Add seg_pe_ranges and devices fields to liblvm.
  Fix incorrect tests for dm_snprintf() failure.
-  Fix some unmatching sign comparison gcc warnings in the code.
+  Fix some unmatching sign comparation gcc warnings in the code.
  Support lv_extend() on empty LVs.
  Avoid regenerating cache content when exported VG buffer is unchanged.
  Extend the set of memory regions that are not locked to memory.
@ -2955,7 +2777,7 @@ Version 2.02.85 - 29th April 2011
  Use only vg_set_fid and new pv_set_fid fn to assign the format instance.
  Make create_text_context fn static and move it inside create_instance fn.
  Add mem and ref_count fields to struct format_instance for own mempool use.
-  Use new alloc_fid fn for common format instance initialization.
+  Use new alloc_fid fn for common format instance initialisation.
  Optimise _get_token() and _eat_space().
  Add _lv_postorder_vg() to improve efficiency for all LVs in VG.
  Add gdbinit script for debugging.
@ -2964,10 +2786,10 @@ Version 2.02.85 - 29th April 2011
  Avoid possible endless loop in _free_vginfo when 4 or more VGs have same name.
  Use empty string instead of /dev// for LV path when there's no VG.
  Don't allocate unused VG mempool in _pvsegs_sub_single.
-  Do not send uninitialized bytes in local clvmd messages.
+  Do not send uninitialised bytes in local clvmd messages.
  Support --help option for clvmd and return error for unknown option.
  Avoid reading freed memory when printing LV segment type.
-  Fix syslog initialization in clvmd to respect lvm.conf setting.
+  Fix syslog initialisation in clvmd to respect lvm.conf setting.
  Fix possible overflow in maximum stripe size and physical extent size.
  Improve pvremove error message when PV belongs to a VG.
  Extend normal policy to allow mirror logs on same PVs as images if necessary.
@ -2981,7 +2803,7 @@ Version 2.02.85 - 29th April 2011
  Restructure existing pv_setup and pv_write and add pv_initialise.
  Add internal interface to support adding and removing metadata areas.
  Allow internal indexing of metadata areas (PV id + mda order).
-  Generalise internal format_instance infrastructure for PV and VG use.
+  Generalise internal format_instance infrastrusture for PV and VG use.
  Handle decimal digits with --units instead of ignoring them silently.
  Fix remaining warnings and compile with -Wpointer-arith.
  Fix gcc warnings for unused variables and const casts.
@ -2995,7 +2817,7 @@ Version 2.02.85 - 29th April 2011
  Make pv_min_size configurable and increase to 2048KB to exclude floppy drives.
  Add find_config_tree_int64 to read 64-bit ints from config.
  Ensure resuming exclusive cluster mirror continues to use local mirror target.
-  Clear temporary postorder LV status flags to allow reuse with same LV struct.
+  Clear temporary postorder LV status flags to allow re-use with same LV struct.
  Remove invalid snapshot umount mesg which floods syslog from dmeventd plugin.
  Add extended examples to pvmove man page.
  Support LVM_TEST_DEVDIR env var for private /dev during testing.
@ -3050,7 +2872,7 @@ Version 2.02.80 - 10th January 2011
  Speed up command processing by caching resolved config tree.
  Pass config_tree to renamed function import_vg_from_config_tree().
  Detect NULL handle in get_property().
-  Fix superfluous /usr in ocf_scriptdir installation path.
+  Fix superfluous /usr in ocf_scriptdir instalation path.
  Add --with-ocfdir configurable option.
  Add aclocal.m4 (for pkgconfig).
  Fix memory leak in persistent filter creation error path.
@ -3082,7 +2904,7 @@ Version 2.02.79 - 20th December 2010
  Add copy_percent and snap_percent to liblvm.
  Enhance vg_validate to ensure integrity of LV and PV structs referenced.
  Enhance vg_validate to check composition of pvmove LVs.
-  Create /var/run/lvm directory during clvmd initialization if missing.
+  Create /var/run/lvm directory during clvmd initialisation if missing.
  Use new dm_prepare_selinux_context instead of dm_set_selinux_context.
  Avoid revalidating the label cache immediately after scanning.
  Support scanning for a single VG in independent mdas.
@ -3351,7 +3173,7 @@ Version 2.02.68 - 23rd June 2010
  Add device name and offset to raw_read_mda_header error messages.
  Honour log argument when down-converting stacked mirror.
  Sleep to workaround clvmd -S race: socket closed early and server drops cmd.
-  Use early udev synchronization and update of dev nodes for clustered mirrors.
+  Use early udev synchronisation and update of dev nodes for clustered mirrors.
  Remove incorrect inclusion of kdev_t.h from cmirrord/functions.h.
  Add man pages for lvmconf and non-existent lvmsadc and lvmsar tools.
  Exit successfully when using -o help (but not -o +help) with LVM reports.
@ -3379,7 +3201,7 @@ Version 2.02.67 - 4th June 2010
  Avoid selecting names under /dev/block if there is an alternative.
  Update clustered log kernel module name to log-userspace for 2.6.31 onwards.
  Add replicators' LVs to dtree for activation.
-  Suppress activation message if there is a missing replicator VG.
+  Supress activation message if there is a missing replicator VG.
  Fix scripts/relpath.awk to work in mawk
  Extend lock_vol to check for missing replicator VGs first.
  Update _process_one_vg and process_each_lv_in_vg to populate cmd_vg.
@ -3430,7 +3252,7 @@ Version 2.02.65 - 17th May 2010

 Version 2.02.64 - 30th April 2010
 =================================
-  Avoid pointless initialization when the 'version' command is run directly.
+  Avoid pointless initialisation when the 'version' command is run directly.
  Fix memory leak for invalid regex pattern input.
  Display invalid regex pattern for filter configuration in case of error.
  Remove no-longer-used arg_ptr_value.
@ -3589,7 +3411,7 @@ Version 2.02.60 - 23rd January 2010
  Disable memory debugging if dmeventd is configured. (Not thread-safe.)
  Fix first log message prefix in syslog for dmeventd plugins.
  Fix exported symbols names for dmeventd lvm2 wrapper plugin.
-  Make failed locking initialization messages more descriptive.
+  Make failed locking initialisation messages more descriptive.

 Version 2.02.59 - 21st January 2010
 ===================================
@ -3605,7 +3427,7 @@ Version 2.02.59 - 21st January 2010
  Fix detection of completed snapshot merge.
  Add Red Hat cmirror initscript (unfinished).
  Add cmirrord man page (incomplete).
-  Make cluster log communication structures architecture independent.
+  Make cluster log communication structures architecture independant.
  Fix cluster log in-memory bitmap handling.
  Improve snapshot merge metadata import validation.
  Improve target type compatibility checking in _percent_run().
@ -3681,7 +3503,7 @@ Version 2.02.57 - 12th January 2010
  Impose limit of 8 mirror images to match the in-kernel kcopyd restriction.
  Use locking_type 3 (compiled in) for lvmconf --enable-cluster.
  Remove list.c and list.h with no-longer-used dm_list macros and functions.
-  Log failure type and recognize type 'F' (flush) in dmeventd mirror plugin.
+  Log failure type and recognise type 'F' (flush) in dmeventd mirror plugin.
  Extend internal PV/VG/LV/segment status variables from 32-bit to 64-bit.

 Version 2.02.56 - 24th November 2009
@ -3719,14 +3541,14 @@ Version 2.02.54 - 26th October 2009
  Fix clvmd segfault when refresh_toolcontext fails.
  Remember to clear 'global lock held during cache refresh' state after use.
  Use udev flags support in LVM and apply various fixes to udev rules.
-  Delay announcing mirror monitoring to syslog until initialization succeeded.
+  Delay announcing mirror monitoring to syslog until initialisation succeeded.
  Handle metadata with unknown segment types more gracefully.
  Set default owner and group to null.
  Add dmeventd.static to the build.
  Disable realtime support code by default.
  Make clvmd return 0 on success rather than 1.
  Add --pvmetadatacopies for pvcreate, vgcreate, vgextend, vgconvert.
-  Add implicit pvcreate support to vgcreate and vgextend.
+  Add implict pvcreate support to vgcreate and vgextend.
  Correct example.conf to indicate that lvm2 not lvm1 is the default format.
  Remove an unused stray LVM1_SUPPORT ifdef.
  Only include selinux libs in libdevmapper.pc when selinux build enabled.
@ -3906,7 +3728,7 @@ Version 2.02.48 - 30th June 2009
  Reinstate partial activation support in clustered mode. (2.02.40)
  Allow metadata correction even when PVs are missing.
  Use 'lvm lvresize' instead of 'lvresize' in fsadm.
-  Do not use '-n' realine option in fsadm for busybox compatibility.
+  Do not use '-n' realine option in fsadm for busybox compatiblity.
  Add vg_lock_newname() library function for vgrename, vgsplit and vgcreate.
  Round up requested readahead to at least one page and print warning.
  Try to repair vg before actual vgremove when force flag provided.
@ -3967,7 +3789,7 @@ Version 2.02.46 - 21st May 2009
  Fix first_seg() call for empty segment list.
  Add install_lvm2 makefile target to install only the LVM2 components.
  Reject missing PVs from allocation in toollib.
-  Fix PV dataalignment for values starting prior to MDA area. (2.02.45)
+  Fix PV datalignment for values starting prior to MDA area. (2.02.45)
  Add sparse devices: lvcreate -s --virtualoriginsize (hidden zero origin).
  Fix minimum width of devices column in reports.
  Add lvs origin_size field.
@ -4040,7 +3862,7 @@ Version 2.02.45 - 3rd March 2009
  Separate PV label attributes which do not need parse metadata when reporting.
  Remove external dependency on the 'cut' command from fsadm.
  Fix pvs segfault when pv mda attributes requested for not available PV.
-  Add fsadm support for resizing ext4 filesystems.
+  Add fsadm support for reszing ext4 filesysystems.
  Move locking_type reading inside init_locking().
  Rename get_vgs() to get_vgnames() and clarify related error messages.
  Allow clvmd to be built with all cluster managers & select one on cmdline.
@ -4217,7 +4039,7 @@ Version 2.02.37 - 6th June 2008
  Refactor some vginfo manipulation code.
  Add assertions to trap deprecated P_ and V_ lock usage.
  Add missing mutex around clvmd lvmcache_drop_metadata library call.
-  Fix uninitialized mutex in clvmd if all daemons are not running at startup.
+  Fix uninitialised mutex in clvmd if all daemons are not running at startup.
  Avoid using DLM locks with LCK_CACHE type P_ lock requests.
  When asked to drop cached committed VG metadata, invalidate cached PV labels.
  Drop metadata cache before writing precommitted metadata instead of after.
@ -4264,7 +4086,7 @@ Version 2.02.34 - 10th April 2008
  Mention default --clustered setting in vgcreate man page.
  Add config file overrides to clvmd when it reads the active LVs list.
  Fix vgreduce to use vg_split_mdas to check sufficient mdas remain.
-  Add (empty) orphan VGs to lvmcache during initialization.
+  Add (empty) orphan VGs to lvmcache during initialisation.
  Fix orphan VG name used for format_pool.
  Create a fid for internal orphan VGs.
  Update lvmcache VG lock state for all locking types now.
@ -4282,7 +4104,7 @@ Version 2.02.34 - 10th April 2008
  Fix redundant lvresize message if vg doesn't exist.
  Fix another allocation bug with clvmd and large node IDs.
  Add find_lv_in_lv_list() and find_pv_in_pv_list().
-  Fix uninitialized variable in clvmd that could cause odd hangs.
+  Fix uninitialised variable in clvmd that could cause odd hangs.
  Add vgmerge tests.
  Add pvseg_is_allocated() for identifying a PV segment allocated to a LV.
  Add list_move() for moving elements from one list to another.
@ -4290,7 +4112,7 @@ Version 2.02.34 - 10th April 2008
  Correct command name in lvmdiskscan man page.
  clvmd no longer crashes if it sees nodeids over 50.
  Fix potential deadlock in clvmd thread handling.
-  Refactor text format initialization into _init_text_import.
+  Refactor text format initialisation into _init_text_import.
  Escape double quotes and backslashes in external metadata and config data.
  Add functions for escaping double quotes in strings.
  Rename count_chars_len to count_chars.
@ -4340,7 +4162,7 @@ Version 2.02.31 - 19th January 2008

 Version 2.02.30 - 17th January 2008
 ===================================
-  Set default readahead to twice maximum stripe size.
+  Set default readahead to twice maximium stripe size.
  Reinstate VG extent size and stripe size defaults (halved). (2.02.29)
  Add lists of stacked LV segments using each LV to the internal metadata.
  Change vgsplit -l (for unimplemented --list) into --maxlogicalvolumes.
@ -4712,7 +4534,7 @@ Version 2.02.11 - 12th October 2006
  Capture error messages in clvmd and pass them back to the user.
  Remove unused #defines from filter-md.c.
  Make clvmd restart init script wait until clvmd has died before starting it.
-  Add -R to clvmd which tells running clvmd to reload their device cache.
+  Add -R to clvmd which tells running clvmds to reload their device cache.
  Add LV column to reports listing kernel modules needed for activation.
  Show available fields if report given invalid field. (e.g. lvs -o list)
  Add timestamp functions with --disable-realtime configure option.
@ -5039,7 +4861,7 @@ Version 2.01.08 - 22nd March 2005
  Improve detection of external changes affecting internal cache.
  Add 'already in device cache' debug message.
  Add -a to pvdisplay -C.
-  Avoid rmdir opendir error messages when dir was already removed.
+  Avoid rmdir opendir error messsages when dir was already removed.
  Tighten signal handlers.
  Avoid some compiler warnings.
  Additional rename failure error message.
@ -5270,7 +5092,7 @@ Version 2.00.17 - 20 June 2004
  fsadm support for fsck and resizing - needs testing.
  Add read-only GFS pool support.
  Add lvm2create_initrd script from http://poochiereds.net/svn/lvm2/
-  Fix rounding of large displayed sizes.
+  Fix rounding of large diplayed sizes.
  Suppress decimal point when using units of sectors/bytes.
  Additional kernel target checks before pvmove & snapshot creation.
  Add i2o_block.
@ -5485,5 +5307,3 @@ Display output.  Some metadata information cannot yet be displayed.

 Recovery tools to salvage "lost" metadata directly from the disks:
 but we hope the new format will mean such tools are hardly ever needed!
-
-
--- a/107
+++ b/107
@ -1,70 +1,5 @@
-Version 1.02.202 - 
-===================
-
-Version 1.02.201 - 02nd October 2024
-====================================
-  Cleanup udev sync semaphore if dm_{udev_create,task_set}_cookie fails.
-  Improve error messages on failed udev cookie create/inc/dec operation.
-
-Version 1.02.200 - 23rd August 2024
-===================================
-
-Version 1.02.199 - 12nd July 2024
-=================================
-
-Version 1.02.198 - 16th May 2024
-================================
-  Fix static only compilation of libdevmapper.a and dmsetup tool.
-  Use better code for closing opened descriptors when starting dmeventd.
-  Correct dmeventd -R for systemd environment.
-  Restart of dmeventd -R checks pid file to detect running dmeventd first.
-  Query with dmeventd -i quickly ends when there is no running dmeventd.
-  Enhance dm_get_status_raid to handle mismatching status or reported legs.
-  Create /dev/disk/by-label symlinks for DM devs that have crypto as next layer.
-  Persist udev db for DM devs on cleanup used in initrd to rootfs transition.
-  Process synthetic udev events other than 'add/change' as 'change' events.
-  Increase DM_UDEV_RULES_VSN to 3 to indicate changed udev rules.
-  Rename DM_NOSCAN to .DM_NOSCAN so it's not stored in udev db.
-  Rename DM_SUSPENDED to .DM_SUSPENDED so it's not stored in udev db.
-  Do not import DM_UDEV_DISABLE_OTHER_RULES_FLAG from db in 10-dm-disk.rules.
-  Test DISK_RO after importing properties from db in 10-dm.rules.
-  Also import ID_FS_TYPE in 13-dm-disk.rules from db if needed.
-
-Version 1.02.197 - 21st November 2023
+Version 1.02.185 - 
 =====================================
-  Fix invalid JSON report if using DM_REPORT_OUTPUT_MULTIPLE_TIMES and selection.
-  Propagate ioctl errno from dm_task_run when creating new table line.
-  Add support for group aliases in dmstats.
-  Add support for exit-on file for dmeventd to reduce shutdown delays.
-  Add configure option --with-dmeventd-exit-on-path to specify default path.
-  Add dmsetup --headings none|abbrev|full to set report headings type.
-  Add DM_REPORT_OUTPUT_FIELD_IDS_IN_HEADINGS to provide alternative headings.
-
-Version 1.02.196 - 02nd August 2023
-===================================
-
-Version 1.02.195 - 21st April 2023
-==================================
-
-Version 1.02.193 - 21st March 2023
-==================================
-
-Version 1.02.191 - 21st February 2023
-=====================================
-  Improve parallel creation of /dev/mapper/control device node.
-  Import previous ID_FS_* udev records in 13-dm-disk.rules for suspended DM dev.
-  Remove NAME="mapper/control" rule from 10-dm.rules to avoid udev warnings.
-
-Version 1.02.189 - 22nd December 2022
-=====================================
-  Improve 'dmsetup create' without given table line with new kernels.
-
-Version 1.02.187 - 10th November 2022
-=====================================
-  Add DM_REPORT_GROUP_JSON_STD for more JSON standard compliant output format.
-
-Version 1.02.185 - 18th May 2022
-================================

 Version 1.02.183 - 07th February 2022
 =====================================
@ -96,7 +31,7 @@ Version 1.02.173 - 09th August 2020
 Version 1.02.171 - 26th March 2020
 ==================================
  Try to remove all created devices on dm preload tree error path.
-  Fix dm_list iterators with gcc 10 optimization (-ftree-pta).
+  Fix dm_list interators with gcc 10 optimization (-ftree-pta).
  Dmeventd handles timer without looping on short intervals.

 Version 1.02.169 - 11th February 2020
@ -127,7 +62,7 @@ Version 1.02.155 - 18th December 2018
 =====================================
  Include correct internal header inside libdm list.c.
  Enhance ioctl flattening and add parameters only when needed.
-  Add DM_DEVICE_ARM_POLL for API completeness matching kernel.
+  Add DM_DEVICE_ARM_POLL for API completness matching kernel.
  Do not add parameters for RESUME with DM_DEVICE_CREATE dm task.
  Fix dmstats report printing no output.

@ -156,7 +91,7 @@ Version 1.02.147-rc1 - 24th May 2018
  Reuse uname() result for mirror target.
  Recognize also mounted btrfs through dm_device_has_mounted_fs().
  Add missing log_error() into dm_stats_populate() returning 0.
-  Avoid calling dm_stats_populate() for DM devices without any stats regions.
+  Avoid calling dm_stats_populat() for DM devices without any stats regions.
  Support DM_DEBUG_WITH_LINE_NUMBERS envvar for debug msg with source:line.
  Configured command for thin pool threshold handling gets whole environment.
  Fix tests for failing dm_snprintf() in stats code.
@ -205,7 +140,7 @@ Version 1.02.141 - 28th June 2017
  Add dm_percent_to_round_float for adjusted percentage rounding.
  Reset array with dead rimage devices once raid gets in sync.
  Drop unneeded --config option from raid dmeventd plugin.
-  dm_get_status_raid() handle better some inconsistent md statuses.
+  dm_get_status_raid() handle better some incosistent md statuses.
  Accept truncated files in calls to dm_stats_update_regions_from_fd().
  Restore Warning by 5% increment when thin-pool is over 80% (1.02.138).

@ -400,7 +335,7 @@ Version 1.02.112 - 28th November 2015
 =====================================
  Show error message when trying to create unsupported raid type.
  Improve preloading sequence of an active thin-pool target.
-  Drop extra space from cache target line to fix unneeded table reloads.
+  Drop extra space from cache target line to fix unneded table reloads.

 Version 1.02.111 - 23rd November 2015
 =====================================
@ -415,7 +350,7 @@ Version 1.02.110 - 30th October 2015
  Disable thin monitoring plugin when it fails too often (>10 times).
  Fix/restore parsing of empty field '-' when processing dmeventd event.
  Enhance dm_tree_node_size_changed() to recognize size reduction.
-  Support exit on idle for dmeventd (1 hour).
+  Support exit on idle for dmenventd (1 hour).
  Add support to allow unmonitor device from plugin itself.
  New design for thread co-operation in dmeventd.
  Dmeventd read device status with 'noflush'.
@ -588,7 +523,7 @@ Version 1.02.93 - 21st January 2015
 Version 1.02.92 - 24th November 2014
 ====================================
  Fix memory corruption with sorting empty string lists (1.02.86).
-  Fix man dmsetup.8 syntax warning of Groff.
+  Fix man dmsetup.8 syntax warning of Groff
  Accept unquoted strings and / in place of {} when parsing configs.

 Version 1.02.91 - 11th November 2014
@ -607,7 +542,7 @@ Version 1.02.90 - 1st September 2014
 Version 1.02.89 - 26th August 2014
 ==================================
  Improve libdevmapper-event select() error handling.
-  Add extra check for matching transaction_id after message submitting.
+  Add extra check for matching transation_id after message submitting.
  Add dm_report_field_string_list_unsorted for str. list report without sorting.
  Support --deferred with dmsetup remove to defer removal of open devices.
  Update dm-ioctl.h to include DM_DEFERRED_REMOVE flag.
@ -694,7 +629,7 @@ Version 1.02.82 - 4th October 2013

 Version 1.02.81 - 23rd September 2013
 =====================================
-  Tidy dmeventd fifo initialization.
+  Tidy dmeventd fifo initialisation.

 Version 1.02.80 - 20th September 2013
 =====================================
@ -719,7 +654,7 @@ Version 1.02.78 - 24th July 2013
  Always return success on dmeventd -V command call.
  Fix parsing of 64bit snapshot status in dmeventd snapshot plugin.
  Add dm_get_status_snapshot() for parsing snapshot status.
-  Detect mounted fs also via reading /proc/self/mountinfo.
+  Detecte mounted fs also via reading /proc/self/mountinfo.
  Add dm_mountinfo_read() for parsing /proc/self/mountinfo.
  Report error for nonexisting devices in dmeventd communication.
  Prevent double free error after dmeventd call of _fill_device_data().
@ -816,7 +751,7 @@ Version 1.02.71 - 20th February 2012
  Add "watch" rule to 13-dm-disk.rules.
  Detect failing fifo and skip 20s retry communication period.
  Add DM_DEFAULT_NAME_MANGLING_MODE environment variable as an override.
-  Add dm_lib_init to automatically initialize device-mapper library on load.
+  Add dm_lib_init to automatically initialise device-mapper library on load.
  Replace any '\' char with '\\' in dm table specification on input.
  Add mangle command to dmsetup to provide renaming to correct mangled form.
  Add 'mangled_name' and 'unmangled_name' fields to dmsetup info -c -o.
@ -910,7 +845,7 @@ Version 1.02.66 - 12th August 2011
  Fix memory leak in dmsetup _message() memory allocation error path.
  Use new oom killer adjustment interface (oom_score_adj) when available.
  Add systemd unit files for dmeventd.
-  Fix read-only identical table reload suppression.
+  Fix read-only identical table reload supression.

 Version 1.02.65 - 8th July 2011
 ===============================
@ -925,7 +860,7 @@ Version 1.02.65 - 8th July 2011
  Add dm_get_suspended_counter() for number of devs in suspended state by lib.
  Fix "all" report field prefix matching to include label fields with pv_all.
  Delay resuming new preloaded mirror devices with core logs in deptree code.
-  Accept new kernel version 3 uname formats in initialization.
+  Accept new kernel version 3 uname formats in initialisation.

 Version 1.02.64 - 29th April 2011
 ==================================
@ -939,7 +874,7 @@ Version 1.02.64 - 29th April 2011
  Improve stack debug reporting in dm_task_create().
  Fallback to control node creation only if node doesn't exist yet.
  Change dm_hash binary functions to take void *key instead of char *.
-  Fix uninitialized memory use with empty params in _reload_with_suppression_v4.
+  Fix uninitialised memory use with empty params in _reload_with_suppression_v4.
  Lower severity of selabel_lookup and matchpathcon failure to log_debug.
  Add test for failed allocation from dm_task_set_uuid() in dmeventd.
  Add dm_event_get_version to dmeventd for use with -R.
@ -1108,7 +1043,7 @@ Version 1.02.44 - 15th February 2010

 Version 1.02.43 - 21st January 2010
 ===================================
-  Remove bitset, hash and pool headers superseded by libdevmapper.h.
+  Remove bitset, hash and pool headers superceded by libdevmapper.h.
  Fix off-by-one error causing bad cluster mirror table construction.

 Version 1.02.42 - 14th January 2010
@ -1164,7 +1099,7 @@ Version 1.02.37 - 15th September 2009
 Version 1.02.36 - 6th August 2009
 =================================
  Add udevcookies, udevcomplete, udevcomplete_all and --noudevwait to dmsetup.
-  Add libdevmapper functions to support synchronization with udev.
+  Add libdevmapper functions to support synchronisation with udev.

 Version 1.02.35 - 28th July 2009
 ================================
@ -1232,7 +1167,7 @@ Version 1.02.27 - 25th June 2008

 Version 1.02.26 - 6th June 2008
 ===============================
-  Initialize params buffer to empty string in _emit_segment.
+  Initialise params buffer to empty string in _emit_segment.
  Skip add_dev_node when ioctls disabled.
  Make dm_hash_iter safe against deletion.
  Accept a NULL pointer to dm_free silently.
@ -1288,7 +1223,7 @@ Version 1.02.20 - 15th June 2007

 Version 1.02.19 - 27th April 2007
 =================================
-  Standardize protective include file #defines.
+  Standardise protective include file #defines.
  Add regex functions to library.
  Avoid trailing separator in reports when there are hidden sort fields.
  Fix segfault in 'dmsetup status' without --showkeys against crypt target.
@ -1319,7 +1254,7 @@ Version 1.02.16 - 25th January 2007
  Streamline dm_report_field_* interface.
  Add cmdline debug & version options to dmeventd.
  Add DM_LIB_VERSION definition to configure.h.
-  Suppress 'Unrecognized field' error if report field is 'help'.
+  Suppress 'Unrecognised field' error if report field is 'help'.
  Add --separator and --sort to dmsetup (unused).
  Make alignment flag optional when specifying report fields.

@ -1567,5 +1502,3 @@ Version 1.00.08 - 27 Feb 2004
  Fixed DESTDIR for make install/install_static_lib.
  Updated README/INSTALL to reflect move to sources.redhat.com.
  Updated autoconf files to 2003-06-17.
-
-
--- a/acinclude.m4
+++ b/acinclude.m4
@ -62,24 +62,6 @@ AC_DEFUN([AC_TRY_LDFLAGS],
    fi
 ])

-
-dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE,
-dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
-dnl -------------------------------------------
-dnl Since: 0.28
-dnl
-dnl Retrieves the value of the pkg-config variable for the given module.
-AC_DEFUN([PKG_CHECK_VAR],
-[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
-AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl
-
-_PKG_CONFIG([$1], [variable="][$3]["], [$2])
-AS_VAR_COPY([$1], [pkg_cv_][$1])
-
-AS_VAR_IF([$1], [""], [$5], [$4])dnl
-])dnl PKG_CHECK_VAR
-
-
 # ===========================================================================
 #      http://www.gnu.org/software/autoconf-archive/ax_gcc_builtin.html
 # ===========================================================================
--- a/aclocal.m4
+++ b/aclocal.m4
@ -1,6 +1,6 @@
-# generated automatically by aclocal 1.16.5 -*- Autoconf -*-
+# generated automatically by aclocal 1.16.2 -*- Autoconf -*-

-# Copyright (C) 1996-2021 Free Software Foundation, Inc.
+# Copyright (C) 1996-2020 Free Software Foundation, Inc.

 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@ -69,8 +69,8 @@ AC_DEFUN([AX_PYTHON_MODULE],[
    fi
 ])

-# pkg.m4 - Macros to locate and use pkg-config.   -*- Autoconf -*-
-# serial 12 (pkg-config-0.29.2)
+# pkg.m4 - Macros to locate and utilise pkg-config.   -*- Autoconf -*-
+# serial 11 (pkg-config-0.29.1)

 dnl Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
 dnl Copyright © 2012-2015 Dan Nicholson <dbn.lists@gmail.com>
@ -112,13 +112,13 @@ dnl
 dnl See the "Since" comment for each macro you use to see what version
 dnl of the macros you require.
 m4_defun([PKG_PREREQ],
-[m4_define([PKG_MACROS_VERSION], [0.29.2])
+[m4_define([PKG_MACROS_VERSION], [0.29.1])
 m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1,
    [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])])
 ])dnl PKG_PREREQ

-dnl PKG_PROG_PKG_CONFIG([MIN-VERSION], [ACTION-IF-NOT-FOUND])
-dnl ---------------------------------------------------------
+dnl PKG_PROG_PKG_CONFIG([MIN-VERSION])
+dnl ----------------------------------
 dnl Since: 0.16
 dnl
 dnl Search for the pkg-config tool and set the PKG_CONFIG variable to
@ -126,12 +126,6 @@ dnl first found in the path. Checks that the version of pkg-config found
 dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is
 dnl used since that's the first version where most current features of
 dnl pkg-config existed.
-dnl
-dnl If pkg-config is not found or older than specified, it will result
-dnl in an empty PKG_CONFIG variable. To avoid widespread issues with
-dnl scripts not checking it, ACTION-IF-NOT-FOUND defaults to aborting.
-dnl You can specify [PKG_CONFIG=false] as an action instead, which would
-dnl result in pkg-config tests failing, but no bogus error messages.
 AC_DEFUN([PKG_PROG_PKG_CONFIG],
 [m4_pattern_forbid([^_?PKG_[A-Z_]+$])
 m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$])
@ -152,9 +146,6 @@ if test -n "$PKG_CONFIG"; then
 		AC_MSG_RESULT([no])
 		PKG_CONFIG=""
 	fi
-fi
-if test -z "$PKG_CONFIG"; then
-	m4_default([$2], [AC_MSG_ERROR([pkg-config not found])])
 fi[]dnl
 ])dnl PKG_PROG_PKG_CONFIG

@ -166,7 +157,7 @@ dnl Check to see whether a particular set of modules exists. Similar to
 dnl PKG_CHECK_MODULES(), but does not set variables or print errors.
 dnl
 dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG])
-dnl only at the first occurrence in configure.ac, so if the first place
+dnl only at the first occurence in configure.ac, so if the first place
 dnl it's called might be skipped (such as if it is within an "if", you
 dnl have to call PKG_CHECK_EXISTS manually
 AC_DEFUN([PKG_CHECK_EXISTS],
@ -222,7 +213,7 @@ AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
 AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl

 pkg_failed=no
-AC_MSG_CHECKING([for $2])
+AC_MSG_CHECKING([for $1])

 _PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
 _PKG_CONFIG([$1][_LIBS], [libs], [$2])
@ -232,17 +223,17 @@ and $1[]_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.])

 if test $pkg_failed = yes; then
-        AC_MSG_RESULT([no])
+   	AC_MSG_RESULT([no])
        _PKG_SHORT_ERRORS_SUPPORTED
        if test $_pkg_short_errors_supported = yes; then
-                $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
-        else
-                $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
+	        $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
+        else 
+	        $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
        fi
-        # Put the nasty error message in config.log where it belongs
-        echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
+	# Put the nasty error message in config.log where it belongs
+	echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD

-        m4_default([$4], [AC_MSG_ERROR(
+	m4_default([$4], [AC_MSG_ERROR(
 [Package requirements ($2) were not met:

 $$1_PKG_ERRORS
@ -253,8 +244,8 @@ installed software in a non-standard prefix.
 _PKG_TEXT])[]dnl
        ])
 elif test $pkg_failed = untried; then
-        AC_MSG_RESULT([no])
-        m4_default([$4], [AC_MSG_FAILURE(
+     	AC_MSG_RESULT([no])
+	m4_default([$4], [AC_MSG_FAILURE(
 [The pkg-config script could not be found or is too old.  Make sure it
 is in your PATH or set the PKG_CONFIG environment variable to the full
 path to pkg-config.
@ -264,10 +255,10 @@ _PKG_TEXT
 To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl
        ])
 else
-        $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
-        $1[]_LIBS=$pkg_cv_[]$1[]_LIBS
+	$1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
+	$1[]_LIBS=$pkg_cv_[]$1[]_LIBS
        AC_MSG_RESULT([yes])
-        $3
+	$3
 fi[]dnl
 ])dnl PKG_CHECK_MODULES

@ -422,7 +413,7 @@ AS_IF([test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"],
        [AC_DEFINE([HAVE_][$1], 1, [Enable ]m4_tolower([$1])[ support])])
 ])dnl PKG_HAVE_DEFINE_WITH_MODULES

-# Copyright (C) 1999-2021 Free Software Foundation, Inc.
+# Copyright (C) 1999-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@ -501,7 +492,7 @@ AC_DEFUN([AM_PATH_PYTHON],
  ])

  if test "$PYTHON" = :; then
-    dnl Run any user-specified action, or abort.
+  dnl Run any user-specified action, or abort.
    m4_default([$3], [AC_MSG_ERROR([no suitable Python interpreter found])])
  else

@ -510,132 +501,27 @@ AC_DEFUN([AM_PATH_PYTHON],
  dnl trailing zero was eliminated. So now we output just the major
  dnl and minor version numbers, as numbers. Apparently the tertiary
  dnl version is not of interest.
-  dnl
+
  AC_CACHE_CHECK([for $am_display_PYTHON version], [am_cv_python_version],
-    [am_cv_python_version=`$PYTHON -c "import sys; print ('%u.%u' % sys.version_info[[:2]])"`])
+    [am_cv_python_version=`$PYTHON -c "import sys; print('%u.%u' % sys.version_info[[:2]])"`])
  AC_SUBST([PYTHON_VERSION], [$am_cv_python_version])

-  dnl At times, e.g., when building shared libraries, you may want
+  dnl Use the values of $prefix and $exec_prefix for the corresponding
+  dnl values of PYTHON_PREFIX and PYTHON_EXEC_PREFIX.  These are made
+  dnl distinct variables so they can be overridden if need be.  However,
+  dnl general consensus is that you shouldn't need this ability.
+
+  AC_SUBST([PYTHON_PREFIX], ['${prefix}'])
+  AC_SUBST([PYTHON_EXEC_PREFIX], ['${exec_prefix}'])
+
+  dnl At times (like when building shared libraries) you may want
  dnl to know which OS platform Python thinks this is.
-  dnl
+
  AC_CACHE_CHECK([for $am_display_PYTHON platform], [am_cv_python_platform],
    [am_cv_python_platform=`$PYTHON -c "import sys; sys.stdout.write(sys.platform)"`])
  AC_SUBST([PYTHON_PLATFORM], [$am_cv_python_platform])

-  dnl emacs-page
-  dnl If --with-python-sys-prefix is given, use the values of sys.prefix
-  dnl and sys.exec_prefix for the corresponding values of PYTHON_PREFIX
-  dnl and PYTHON_EXEC_PREFIX. Otherwise, use the GNU ${prefix} and
-  dnl ${exec_prefix} variables.
-  dnl
-  dnl The two are made distinct variables so they can be overridden if
-  dnl need be, although general consensus is that you shouldn't need
-  dnl this separation.
-  dnl
-  dnl Also allow directly setting the prefixes via configure options,
-  dnl overriding any default.
-  dnl
-  if test "x$prefix" = xNONE; then
-    am__usable_prefix=$ac_default_prefix
-  else
-    am__usable_prefix=$prefix
-  fi
-
-  # Allow user to request using sys.* values from Python,
-  # instead of the GNU $prefix values.
-  AC_ARG_WITH([python-sys-prefix],
-  [AS_HELP_STRING([--with-python-sys-prefix],
-                  [use Python's sys.prefix and sys.exec_prefix values])],
-  [am_use_python_sys=:],
-  [am_use_python_sys=false])
-
-  # Allow user to override whatever the default Python prefix is.
-  AC_ARG_WITH([python_prefix],
-  [AS_HELP_STRING([--with-python_prefix],
-                  [override the default PYTHON_PREFIX])],
-  [am_python_prefix_subst=$withval
-   am_cv_python_prefix=$withval
-   AC_MSG_CHECKING([for explicit $am_display_PYTHON prefix])
-   AC_MSG_RESULT([$am_cv_python_prefix])],
-  [
-   if $am_use_python_sys; then
-     # using python sys.prefix value, not GNU
-     AC_CACHE_CHECK([for python default $am_display_PYTHON prefix],
-     [am_cv_python_prefix],
-     [am_cv_python_prefix=`$PYTHON -c "import sys; sys.stdout.write(sys.prefix)"`])
-
-     dnl If sys.prefix is a subdir of $prefix, replace the literal value of
-     dnl $prefix with a variable reference so it can be overridden.
-     case $am_cv_python_prefix in
-     $am__usable_prefix*)
-       am__strip_prefix=`echo "$am__usable_prefix" | sed 's|.|.|g'`
-       am_python_prefix_subst=`echo "$am_cv_python_prefix" | sed "s,^$am__strip_prefix,\\${prefix},"`
-       ;;
-     *)
-       am_python_prefix_subst=$am_cv_python_prefix
-       ;;
-     esac
-   else # using GNU prefix value, not python sys.prefix
-     am_python_prefix_subst='${prefix}'
-     am_python_prefix=$am_python_prefix_subst
-     AC_MSG_CHECKING([for GNU default $am_display_PYTHON prefix])
-     AC_MSG_RESULT([$am_python_prefix])
-   fi])
-  # Substituting python_prefix_subst value.
-  AC_SUBST([PYTHON_PREFIX], [$am_python_prefix_subst])
-
-  # emacs-page Now do it all over again for Python exec_prefix, but with yet
-  # another conditional: fall back to regular prefix if that was specified.
-  AC_ARG_WITH([python_exec_prefix],
-  [AS_HELP_STRING([--with-python_exec_prefix],
-                  [override the default PYTHON_EXEC_PREFIX])],
-  [am_python_exec_prefix_subst=$withval
-   am_cv_python_exec_prefix=$withval
-   AC_MSG_CHECKING([for explicit $am_display_PYTHON exec_prefix])
-   AC_MSG_RESULT([$am_cv_python_exec_prefix])],
-  [
-   # no explicit --with-python_exec_prefix, but if
-   # --with-python_prefix was given, use its value for python_exec_prefix too.
-   AS_IF([test -n "$with_python_prefix"],
-   [am_python_exec_prefix_subst=$with_python_prefix
-    am_cv_python_exec_prefix=$with_python_prefix
-    AC_MSG_CHECKING([for python_prefix-given $am_display_PYTHON exec_prefix])
-    AC_MSG_RESULT([$am_cv_python_exec_prefix])],
-   [
-    # Set am__usable_exec_prefix whether using GNU or Python values,
-    # since we use that variable for pyexecdir.
-    if test "x$exec_prefix" = xNONE; then
-      am__usable_exec_prefix=$am__usable_prefix
-    else
-      am__usable_exec_prefix=$exec_prefix
-    fi
-    #
-    if $am_use_python_sys; then # using python sys.exec_prefix, not GNU
-      AC_CACHE_CHECK([for python default $am_display_PYTHON exec_prefix],
-      [am_cv_python_exec_prefix],
-      [am_cv_python_exec_prefix=`$PYTHON -c "import sys; sys.stdout.write(sys.exec_prefix)"`])
-      dnl If sys.exec_prefix is a subdir of $exec_prefix, replace the
-      dnl literal value of $exec_prefix with a variable reference so it can
-      dnl be overridden.
-      case $am_cv_python_exec_prefix in
-      $am__usable_exec_prefix*)
-        am__strip_prefix=`echo "$am__usable_exec_prefix" | sed 's|.|.|g'`
-        am_python_exec_prefix_subst=`echo "$am_cv_python_exec_prefix" | sed "s,^$am__strip_prefix,\\${exec_prefix},"`
-        ;;
-      *)
-        am_python_exec_prefix_subst=$am_cv_python_exec_prefix
-        ;;
-     esac
-   else # using GNU $exec_prefix, not python sys.exec_prefix
-     am_python_exec_prefix_subst='${exec_prefix}'
-     am_python_exec_prefix=$am_python_exec_prefix_subst
-     AC_MSG_CHECKING([for GNU default $am_display_PYTHON exec_prefix])
-     AC_MSG_RESULT([$am_python_exec_prefix])
-   fi])])
-  # Substituting python_exec_prefix_subst.
-  AC_SUBST([PYTHON_EXEC_PREFIX], [$am_python_exec_prefix_subst])
-
-  # Factor out some code duplication into this shell variable.
+  # Just factor out some code duplication.
  am_python_setup_sysconfig="\
 import sys
 # Prefer sysconfig over distutils.sysconfig, for better compatibility
@ -655,95 +541,96 @@ try:
 except ImportError:
    pass"

-  dnl emacs-page Set up 4 directories:
+  dnl Set up 4 directories:

-  dnl 1. pythondir: where to install python scripts.  This is the
-  dnl    site-packages directory, not the python standard library
-  dnl    directory like in previous automake betas.  This behavior
-  dnl    is more consistent with lispdir.m4 for example.
+  dnl pythondir -- where to install python scripts.  This is the
+  dnl   site-packages directory, not the python standard library
+  dnl   directory like in previous automake betas.  This behavior
+  dnl   is more consistent with lispdir.m4 for example.
  dnl Query distutils for this directory.
-  dnl
-  AC_CACHE_CHECK([for $am_display_PYTHON script directory (pythondir)],
-  [am_cv_python_pythondir],
-  [if test "x$am_cv_python_prefix" = x; then
-     am_py_prefix=$am__usable_prefix
-   else
-     am_py_prefix=$am_cv_python_prefix
-   fi
-   am_cv_python_pythondir=`$PYTHON -c "
+  AC_CACHE_CHECK([for $am_display_PYTHON script directory],
+    [am_cv_python_pythondir],
+    [if test "x$prefix" = xNONE
+     then
+       am_py_prefix=$ac_default_prefix
+     else
+       am_py_prefix=$prefix
+     fi
+     am_cv_python_pythondir=`$PYTHON -c "
 $am_python_setup_sysconfig
 if can_use_sysconfig:
-  sitedir = sysconfig.get_path('purelib', vars={'base':'$am_py_prefix'})
+    sitedir = sysconfig.get_path('purelib', vars={'base':'$am_py_prefix'})
 else:
-  from distutils import sysconfig
-  sitedir = sysconfig.get_python_lib(0, 0, prefix='$am_py_prefix')
+    from distutils import sysconfig
+    sitedir = sysconfig.get_python_lib(0, 0, prefix='$am_py_prefix')
 sys.stdout.write(sitedir)"`
-   #
-   case $am_cv_python_pythondir in
-   $am_py_prefix*)
-     am__strip_prefix=`echo "$am_py_prefix" | sed 's|.|.|g'`
-     am_cv_python_pythondir=`echo "$am_cv_python_pythondir" | sed "s,^$am__strip_prefix,\\${PYTHON_PREFIX},"`
-     ;;
-   *)
-     case $am_py_prefix in
-       /usr|/System*) ;;
-       *) am_cv_python_pythondir="\${PYTHON_PREFIX}/lib/python$PYTHON_VERSION/site-packages"
-          ;;
+     case $am_cv_python_pythondir in
+     $am_py_prefix*)
+       am__strip_prefix=`echo "$am_py_prefix" | sed 's|.|.|g'`
+       am_cv_python_pythondir=`echo "$am_cv_python_pythondir" | sed "s,^$am__strip_prefix,$PYTHON_PREFIX,"`
+       ;;
+     *)
+       case $am_py_prefix in
+         /usr|/System*) ;;
+         *)
+	  am_cv_python_pythondir=$PYTHON_PREFIX/lib/python$PYTHON_VERSION/site-packages
+	  ;;
+       esac
+       ;;
     esac
-     ;;
-   esac
-  ])
+    ])
  AC_SUBST([pythondir], [$am_cv_python_pythondir])

-  dnl 2. pkgpythondir: $PACKAGE directory under pythondir.  Was
-  dnl    PYTHON_SITE_PACKAGE in previous betas, but this naming is
-  dnl    more consistent with the rest of automake.
-  dnl
+  dnl pkgpythondir -- $PACKAGE directory under pythondir.  Was
+  dnl   PYTHON_SITE_PACKAGE in previous betas, but this naming is
+  dnl   more consistent with the rest of automake.
+
  AC_SUBST([pkgpythondir], [\${pythondir}/$PACKAGE])

-  dnl 3. pyexecdir: directory for installing python extension modules
-  dnl    (shared libraries).
+  dnl pyexecdir -- directory for installing python extension modules
+  dnl   (shared libraries)
  dnl Query distutils for this directory.
-  dnl
-  AC_CACHE_CHECK([for $am_display_PYTHON extension module directory (pyexecdir)],
-  [am_cv_python_pyexecdir],
-  [if test "x$am_cv_python_exec_prefix" = x; then
-     am_py_exec_prefix=$am__usable_exec_prefix
-   else
-     am_py_exec_prefix=$am_cv_python_exec_prefix
-   fi
-   am_cv_python_pyexecdir=`$PYTHON -c "
+  AC_CACHE_CHECK([for $am_display_PYTHON extension module directory],
+    [am_cv_python_pyexecdir],
+    [if test "x$exec_prefix" = xNONE
+     then
+       am_py_exec_prefix=$am_py_prefix
+     else
+       am_py_exec_prefix=$exec_prefix
+     fi
+     am_cv_python_pyexecdir=`$PYTHON -c "
 $am_python_setup_sysconfig
 if can_use_sysconfig:
-  sitedir = sysconfig.get_path('platlib', vars={'platbase':'$am_py_exec_prefix'})
+    sitedir = sysconfig.get_path('platlib', vars={'platbase':'$am_py_prefix'})
 else:
-  from distutils import sysconfig
-  sitedir = sysconfig.get_python_lib(1, 0, prefix='$am_py_exec_prefix')
+    from distutils import sysconfig
+    sitedir = sysconfig.get_python_lib(1, 0, prefix='$am_py_prefix')
 sys.stdout.write(sitedir)"`
-   #
-   case $am_cv_python_pyexecdir in
-   $am_py_exec_prefix*)
-     am__strip_prefix=`echo "$am_py_exec_prefix" | sed 's|.|.|g'`
-     am_cv_python_pyexecdir=`echo "$am_cv_python_pyexecdir" | sed "s,^$am__strip_prefix,\\${PYTHON_EXEC_PREFIX},"`
-     ;;
-   *)
-     case $am_py_exec_prefix in
-       /usr|/System*) ;;
-       *) am_cv_python_pyexecdir="\${PYTHON_EXEC_PREFIX}/lib/python$PYTHON_VERSION/site-packages"
-          ;;
+     case $am_cv_python_pyexecdir in
+     $am_py_exec_prefix*)
+       am__strip_prefix=`echo "$am_py_exec_prefix" | sed 's|.|.|g'`
+       am_cv_python_pyexecdir=`echo "$am_cv_python_pyexecdir" | sed "s,^$am__strip_prefix,$PYTHON_EXEC_PREFIX,"`
+       ;;
+     *)
+       case $am_py_exec_prefix in
+         /usr|/System*) ;;
+         *)
+	   am_cv_python_pyexecdir=$PYTHON_EXEC_PREFIX/lib/python$PYTHON_VERSION/site-packages
+	   ;;
+       esac
+       ;;
     esac
-     ;;
-   esac
-  ])
+    ])
  AC_SUBST([pyexecdir], [$am_cv_python_pyexecdir])

-  dnl 4. pkgpyexecdir: $(pyexecdir)/$(PACKAGE)
-  dnl
+  dnl pkgpyexecdir -- $(pyexecdir)/$(PACKAGE)
+
  AC_SUBST([pkgpyexecdir], [\${pyexecdir}/$PACKAGE])

  dnl Run any user-specified action.
  $2
  fi
+
 ])


@ -766,7 +653,7 @@ for i in list(range(0, 4)): minverhex = (minverhex << 8) + minver[[i]]
 sys.exit(sys.hexversion < minverhex)"
  AS_IF([AM_RUN_LOG([$1 -c "$prog"])], [$3], [$4])])

-# Copyright (C) 2001-2021 Free Software Foundation, Inc.
+# Copyright (C) 2001-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
--- a/autoconf/config.guess
+++ b/autoconf/config.guess
--- a/autoconf/config.sub
+++ b/autoconf/config.sub
--- a/autoconf/install-sh
+++ b/autoconf/install-sh
@ -1,7 +1,7 @@
-#!/usr/bin/sh
+#!/bin/sh
 # install - install a program, script, or datafile

-scriptversion=2020-11-14.01; # UTC
+scriptversion=2006-10-14.15

 # This originates from X11R5 (mit/util/scripts/install.sh), which was
 # later released in X11R6 (xc/config/util/install.sh) with the
@ -35,62 +35,57 @@ scriptversion=2020-11-14.01; # UTC
 # FSF changes to this file are in the public domain.
 #
 # Calling this script install-sh is preferred over install.sh, to prevent
-# 'make' implicit rules from creating a file called install from it
+# `make' implicit rules from creating a file called install from it
 # when there is no Makefile.
 #
 # This script is compatible with the BSD install script, but was written
 # from scratch.

-tab='	'
 nl='
 '
-IFS=" $tab$nl"
+IFS=" ""	$nl"

-# Set DOITPROG to "echo" to test this script.
+# set DOITPROG to echo to test this script

-doit=${DOITPROG-}
-doit_exec=${doit:-exec}
+# Don't use :- since 4.3BSD and earlier shells don't like it.
+doit="${DOITPROG-}"
+if test -z "$doit"; then
+  doit_exec=exec
+else
+  doit_exec=$doit
+fi

 # Put in absolute file names if you don't have them in your path;
 # or use environment vars.

-chgrpprog=${CHGRPPROG-chgrp}
-chmodprog=${CHMODPROG-chmod}
-chownprog=${CHOWNPROG-chown}
-cmpprog=${CMPPROG-cmp}
-cpprog=${CPPROG-cp}
-mkdirprog=${MKDIRPROG-mkdir}
-mvprog=${MVPROG-mv}
-rmprog=${RMPROG-rm}
-stripprog=${STRIPPROG-strip}
+mvprog="${MVPROG-mv}"
+cpprog="${CPPROG-cp}"
+chmodprog="${CHMODPROG-chmod}"
+chownprog="${CHOWNPROG-chown}"
+chgrpprog="${CHGRPPROG-chgrp}"
+stripprog="${STRIPPROG-strip}"
+rmprog="${RMPROG-rm}"
+mkdirprog="${MKDIRPROG-mkdir}"

+posix_glob=
 posix_mkdir=

 # Desired mode of installed file.
 mode=0755

-# Create dirs (including intermediate dirs) using mode 755.
-# This is like GNU 'install' as of coreutils 8.32 (2020).
-mkdir_umask=22
-
-backupsuffix=
-chgrpcmd=
 chmodcmd=$chmodprog
 chowncmd=
-mvcmd=$mvprog
-rmcmd="$rmprog -f"
+chgrpcmd=
 stripcmd=
-
+rmcmd="$rmprog -f"
+mvcmd="$mvprog"
 src=
 dst=
 dir_arg=
-dst_arg=
+dstarg=
+no_target_directory=

-copy_on_change=false
-is_target_a_directory=possibly
-
-usage="\
-Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
+usage="Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
   or: $0 [OPTION]... SRCFILES... DIRECTORY
   or: $0 [OPTION]... -t DIRECTORY SRCFILES...
   or: $0 [OPTION]... -d DIRECTORIES...
@ -100,116 +95,91 @@ In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
 In the 4th, create DIRECTORIES.

 Options:
-     --help     display this help and exit.
-     --version  display version info and exit.
-
-  -c            (ignored)
-  -C            install only if different (preserve data modification time)
-  -d            create directories instead of installing files.
-  -g GROUP      $chgrpprog installed files to GROUP.
-  -m MODE       $chmodprog installed files to MODE.
-  -o USER       $chownprog installed files to USER.
-  -p            pass -p to $cpprog.
-  -s            $stripprog installed files.
-  -S SUFFIX     attempt to back up existing files, with suffix SUFFIX.
-  -t DIRECTORY  install into DIRECTORY.
-  -T            report an error if DSTFILE is a directory.
+-c         (ignored)
+-d         create directories instead of installing files.
+-g GROUP   $chgrpprog installed files to GROUP.
+-m MODE    $chmodprog installed files to MODE.
+-o USER    $chownprog installed files to USER.
+-s         $stripprog installed files.
+-t DIRECTORY  install into DIRECTORY.
+-T         report an error if DSTFILE is a directory.
+--help     display this help and exit.
+--version  display version info and exit.

 Environment variables override the default commands:
-  CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
-  RMPROG STRIPPROG
-
-By default, rm is invoked with -f; when overridden with RMPROG,
-it's up to you to specify -f if you want it.
-
-If -S is not specified, no backups are attempted.
-
-Email bug reports to bug-automake@gnu.org.
-Automake home page: https://www.gnu.org/software/automake/
+  CHGRPPROG CHMODPROG CHOWNPROG CPPROG MKDIRPROG MVPROG RMPROG STRIPPROG
 "

 while test $# -ne 0; do
  case $1 in
-    -c) ;;
+    -c) shift
+        continue;;

-    -C) copy_on_change=true;;
-
-    -d) dir_arg=true;;
+    -d) dir_arg=true
+        shift
+        continue;;

    -g) chgrpcmd="$chgrpprog $2"
-        shift;;
+        shift
+        shift
+        continue;;

    --help) echo "$usage"; exit $?;;

    -m) mode=$2
-        case $mode in
-          *' '* | *"$tab"* | *"$nl"* | *'*'* | *'?'* | *'['*)
-            echo "$0: invalid mode: $mode" >&2
-            exit 1;;
-        esac
-        shift;;
+        shift
+        shift
+	case $mode in
+	  *' '* | *'	'* | *'
+'*	  | *'*'* | *'?'* | *'['*)
+	    echo "$0: invalid mode: $mode" >&2
+	    exit 1;;
+	esac
+        continue;;

    -o) chowncmd="$chownprog $2"
-        shift;;
+        shift
+        shift
+        continue;;

-    -p) cpprog="$cpprog -p";;
+    -s) stripcmd=$stripprog
+        shift
+        continue;;

-    -s) stripcmd=$stripprog;;
+    -t) dstarg=$2
+	shift
+	shift
+	continue;;

-    -S) backupsuffix="$2"
-        shift;;
-
-    -t)
-        is_target_a_directory=always
-        dst_arg=$2
-        # Protect names problematic for 'test' and other utilities.
-        case $dst_arg in
-          -* | [=\(\)!]) dst_arg=./$dst_arg;;
-        esac
-        shift;;
-
-    -T) is_target_a_directory=never;;
+    -T) no_target_directory=true
+	shift
+	continue;;

    --version) echo "$0 $scriptversion"; exit $?;;

-    --) shift
-        break;;
+    --)	shift
+	break;;

-    -*) echo "$0: invalid option: $1" >&2
-        exit 1;;
+    -*)	echo "$0: invalid option: $1" >&2
+	exit 1;;

    *)  break;;
  esac
-  shift
 done

-# We allow the use of options -d and -T together, by making -d
-# take the precedence; this is for compatibility with GNU install.
-
-if test -n "$dir_arg"; then
-  if test -n "$dst_arg"; then
-    echo "$0: target directory not allowed when installing a directory." >&2
-    exit 1
-  fi
-fi
-
-if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
+if test $# -ne 0 && test -z "$dir_arg$dstarg"; then
  # When -d is used, all remaining arguments are directories to create.
  # When -t is used, the destination is already specified.
  # Otherwise, the last argument is the destination.  Remove it from $@.
  for arg
  do
-    if test -n "$dst_arg"; then
+    if test -n "$dstarg"; then
      # $@ is not empty: it contains at least $arg.
-      set fnord "$@" "$dst_arg"
+      set fnord "$@" "$dstarg"
      shift # fnord
    fi
    shift # arg
-    dst_arg=$arg
-    # Protect names problematic for 'test' and other utilities.
-    case $dst_arg in
-      -* | [=\(\)!]) dst_arg=./$dst_arg;;
-    esac
+    dstarg=$arg
  done
 fi

@ -218,26 +188,13 @@ if test $# -eq 0; then
    echo "$0: no input file specified." >&2
    exit 1
  fi
-  # It's OK to call 'install-sh -d' without argument.
+  # It's OK to call `install-sh -d' without argument.
  # This can happen when creating conditional directories.
  exit 0
 fi

 if test -z "$dir_arg"; then
-  if test $# -gt 1 || test "$is_target_a_directory" = always; then
-    if test ! -d "$dst_arg"; then
-      echo "$0: $dst_arg: Is not a directory." >&2
-      exit 1
-    fi
-  fi
-fi
-
-if test -z "$dir_arg"; then
-  do_exit='(exit $ret); exit $ret'
-  trap "ret=129; $do_exit" 1
-  trap "ret=130; $do_exit" 2
-  trap "ret=141; $do_exit" 13
-  trap "ret=143; $do_exit" 15
+  trap '(exit $?); exit' 1 2 13 15

  # Set umask so as not to create temps with too-generous modes.
  # However, 'strip' requires both read and write access to temps.
@ -248,16 +205,16 @@ if test -z "$dir_arg"; then

    *[0-7])
      if test -z "$stripcmd"; then
-        u_plus_rw=
+	u_plus_rw=
      else
-        u_plus_rw='% 200'
+	u_plus_rw='% 200'
      fi
      cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
    *)
      if test -z "$stripcmd"; then
-        u_plus_rw=
+	u_plus_rw=
      else
-        u_plus_rw=,u+rw
+	u_plus_rw=,u+rw
      fi
      cp_umask=$mode$u_plus_rw;;
  esac
@ -265,9 +222,9 @@ fi

 for src
 do
-  # Protect names problematic for 'test' and other utilities.
+  # Protect names starting with `-'.
  case $src in
-    -* | [=\(\)!]) src=./$src;;
+    -*) src=./$src ;;
  esac

  if test -n "$dir_arg"; then
@ -275,10 +232,6 @@ do
    dstdir=$dst
    test -d "$dstdir"
    dstdir_status=$?
-    # Don't chown directories that already exist.
-    if test $dstdir_status = 0; then
-      chowncmd=""
-    fi
  else

    # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
@ -289,154 +242,196 @@ do
      exit 1
    fi

-    if test -z "$dst_arg"; then
+    if test -z "$dstarg"; then
      echo "$0: no destination specified." >&2
      exit 1
    fi
-    dst=$dst_arg

-    # If destination is a directory, append the input filename.
+    dst=$dstarg
+    # Protect names starting with `-'.
+    case $dst in
+      -*) dst=./$dst ;;
+    esac
+
+    # If destination is a directory, append the input filename; won't work
+    # if double slashes aren't ignored.
    if test -d "$dst"; then
-      if test "$is_target_a_directory" = never; then
-        echo "$0: $dst_arg: Is a directory" >&2
-        exit 1
+      if test -n "$no_target_directory"; then
+	echo "$0: $dstarg: Is a directory" >&2
+	exit 1
      fi
      dstdir=$dst
-      dstbase=`basename "$src"`
-      case $dst in
-	*/) dst=$dst$dstbase;;
-	*)  dst=$dst/$dstbase;;
-      esac
+      dst=$dstdir/`basename "$src"`
      dstdir_status=0
    else
-      dstdir=`dirname "$dst"`
+      # Prefer dirname, but fall back on a substitute if dirname fails.
+      dstdir=`
+	(dirname "$dst") 2>/dev/null ||
+	expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	     X"$dst" : 'X\(//\)[^/]' \| \
+	     X"$dst" : 'X\(//\)$' \| \
+	     X"$dst" : 'X\(/\)' \| . 2>/dev/null ||
+	echo X"$dst" |
+	    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+		   s//\1/
+		   q
+		 }
+		 /^X\(\/\/\)[^/].*/{
+		   s//\1/
+		   q
+		 }
+		 /^X\(\/\/\)$/{
+		   s//\1/
+		   q
+		 }
+		 /^X\(\/\).*/{
+		   s//\1/
+		   q
+		 }
+		 s/.*/./; q'
+      `
+
      test -d "$dstdir"
      dstdir_status=$?
    fi
  fi

-  case $dstdir in
-    */) dstdirslash=$dstdir;;
-    *)  dstdirslash=$dstdir/;;
-  esac
-
  obsolete_mkdir_used=false

  if test $dstdir_status != 0; then
    case $posix_mkdir in
      '')
-        # With -d, create the new directory with the user-specified mode.
-        # Otherwise, rely on $mkdir_umask.
-        if test -n "$dir_arg"; then
-          mkdir_mode=-m$mode
-        else
-          mkdir_mode=
-        fi
+	# Create intermediate dirs using mode 755 as modified by the umask.
+	# This is like FreeBSD 'install' as of 1997-10-28.
+	umask=`umask`
+	case $stripcmd.$umask in
+	  # Optimize common cases.
+	  *[2367][2367]) mkdir_umask=$umask;;
+	  .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;

-        posix_mkdir=false
-	# The $RANDOM variable is not portable (e.g., dash).  Use it
-	# here however when possible just to lower collision chance.
-	tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
+	  *[0-7])
+	    mkdir_umask=`expr $umask + 22 \
+	      - $umask % 100 % 40 + $umask % 20 \
+	      - $umask % 10 % 4 + $umask % 2
+	    `;;
+	  *) mkdir_umask=$umask,go-w;;
+	esac

-	trap '
-	  ret=$?
-	  rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" 2>/dev/null
-	  exit $ret
-	' 0
-
-	# Because "mkdir -p" follows existing symlinks and we likely work
-	# directly in world-writeable /tmp, make sure that the '$tmpdir'
-	# directory is successfully created first before we actually test
-	# 'mkdir -p'.
-	if (umask $mkdir_umask &&
-	    $mkdirprog $mkdir_mode "$tmpdir" &&
-	    exec $mkdirprog $mkdir_mode -p -- "$tmpdir/a/b") >/dev/null 2>&1
-	then
-	  if test -z "$dir_arg" || {
-	       # Check for POSIX incompatibilities with -m.
-	       # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
-	       # other-writable bit of parent directory when it shouldn't.
-	       # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
-	       test_tmpdir="$tmpdir/a"
-	       ls_ld_tmpdir=`ls -ld "$test_tmpdir"`
-	       case $ls_ld_tmpdir in
-		 d????-?r-*) different_mode=700;;
-		 d????-?--*) different_mode=755;;
-		 *) false;;
-	       esac &&
-	       $mkdirprog -m$different_mode -p -- "$test_tmpdir" && {
-		 ls_ld_tmpdir_1=`ls -ld "$test_tmpdir"`
-		 test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
-	       }
-	     }
-	  then posix_mkdir=:
-	  fi
-	  rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir"
+	# With -d, create the new directory with the user-specified mode.
+	# Otherwise, rely on $mkdir_umask.
+	if test -n "$dir_arg"; then
+	  mkdir_mode=-m$mode
 	else
-	  # Remove any dirs left behind by ancient mkdir implementations.
-	  rmdir ./$mkdir_mode ./-p ./-- "$tmpdir" 2>/dev/null
+	  mkdir_mode=
 	fi
-	trap '' 0;;
+
+	posix_mkdir=false
+	case $umask in
+	  *[123567][0-7][0-7])
+	    # POSIX mkdir -p sets u+wx bits regardless of umask, which
+	    # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
+	    ;;
+	  *)
+	    tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
+	    trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0
+
+	    if (umask $mkdir_umask &&
+		exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1
+	    then
+	      if test -z "$dir_arg" || {
+		   # Check for POSIX incompatibilities with -m.
+		   # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
+		   # other-writeable bit of parent directory when it shouldn't.
+		   # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
+		   ls_ld_tmpdir=`ls -ld "$tmpdir"`
+		   case $ls_ld_tmpdir in
+		     d????-?r-*) different_mode=700;;
+		     d????-?--*) different_mode=755;;
+		     *) false;;
+		   esac &&
+		   $mkdirprog -m$different_mode -p -- "$tmpdir" && {
+		     ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
+		     test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
+		   }
+		 }
+	      then posix_mkdir=:
+	      fi
+	      rmdir "$tmpdir/d" "$tmpdir"
+	    else
+	      # Remove any dirs left behind by ancient mkdir implementations.
+	      rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null
+	    fi
+	    trap '' 0;;
+	esac;;
    esac

    if
      $posix_mkdir && (
-        umask $mkdir_umask &&
-        $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
+	umask $mkdir_umask &&
+	$doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
      )
    then :
    else

-      # mkdir does not conform to POSIX,
+      # The umask is ridiculous, or mkdir does not conform to POSIX,
      # or it failed possibly due to a race condition.  Create the
      # directory the slow way, step by step, checking for races as we go.

      case $dstdir in
-        /*) prefix='/';;
-        [-=\(\)!]*) prefix='./';;
-        *)  prefix='';;
+	/*) prefix=/ ;;
+	-*) prefix=./ ;;
+	*)  prefix= ;;
+      esac
+
+      case $posix_glob in
+        '')
+	  if (set -f) 2>/dev/null; then
+	    posix_glob=true
+	  else
+	    posix_glob=false
+	  fi ;;
      esac

      oIFS=$IFS
      IFS=/
-      set -f
+      $posix_glob && set -f
      set fnord $dstdir
      shift
-      set +f
+      $posix_glob && set +f
      IFS=$oIFS

      prefixes=

      for d
      do
-        test X"$d" = X && continue
+	test -z "$d" && continue

-        prefix=$prefix$d
-        if test -d "$prefix"; then
-          prefixes=
-        else
-          if $posix_mkdir; then
-            (umask $mkdir_umask &&
-             $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
-            # Don't fail if two instances are running concurrently.
-            test -d "$prefix" || exit 1
-          else
-            case $prefix in
-              *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
-              *) qprefix=$prefix;;
-            esac
-            prefixes="$prefixes '$qprefix'"
-          fi
-        fi
-        prefix=$prefix/
+	prefix=$prefix$d
+	if test -d "$prefix"; then
+	  prefixes=
+	else
+	  if $posix_mkdir; then
+	    (umask=$mkdir_umask &&
+	     $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
+	    # Don't fail if two instances are running concurrently.
+	    test -d "$prefix" || exit 1
+	  else
+	    case $prefix in
+	      *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
+	      *) qprefix=$prefix;;
+	    esac
+	    prefixes="$prefixes '$qprefix'"
+	  fi
+	fi
+	prefix=$prefix/
      done

      if test -n "$prefixes"; then
-        # Don't fail if two instances are running concurrently.
-        (umask $mkdir_umask &&
-         eval "\$doit_exec \$mkdirprog $prefixes") ||
-          test -d "$dstdir" || exit 1
-        obsolete_mkdir_used=true
+	# Don't fail if two instances are running concurrently.
+	(umask $mkdir_umask &&
+	 eval "\$doit_exec \$mkdirprog $prefixes") ||
+	  test -d "$dstdir" || exit 1
+	obsolete_mkdir_used=true
      fi
    fi
  fi
@ -449,25 +444,14 @@ do
  else

    # Make a couple of temp file names in the proper directory.
-    dsttmp=${dstdirslash}_inst.$$_
-    rmtmp=${dstdirslash}_rm.$$_
+    dsttmp=$dstdir/_inst.$$_
+    rmtmp=$dstdir/_rm.$$_

    # Trap to clean up those temp files at exit.
    trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0

    # Copy the file name to the temp name.
-    (umask $cp_umask &&
-     { test -z "$stripcmd" || {
-	 # Create $dsttmp read-write so that cp doesn't create it read-only,
-	 # which would cause strip to fail.
-	 if test -z "$doit"; then
-	   : >"$dsttmp" # No need to fork-exec 'touch'.
-	 else
-	   $doit touch "$dsttmp"
-	 fi
-       }
-     } &&
-     $doit_exec $cpprog "$src" "$dsttmp") &&
+    (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&

    # and set any options; do chmod last to preserve setuid bits.
    #
@ -475,67 +459,49 @@ do
    # ignore errors from any of these, just make sure not to ignore
    # errors from the above "$doit $cpprog $src $dsttmp" command.
    #
-    { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
-    { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
-    { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
-    { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
+    { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } \
+      && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } \
+      && { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } \
+      && { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&

-    # If -C, don't bother to copy if it wouldn't change the file.
-    if $copy_on_change &&
-       old=`LC_ALL=C ls -dlL "$dst"     2>/dev/null` &&
-       new=`LC_ALL=C ls -dlL "$dsttmp"  2>/dev/null` &&
-       set -f &&
-       set X $old && old=:$2:$4:$5:$6 &&
-       set X $new && new=:$2:$4:$5:$6 &&
-       set +f &&
-       test "$old" = "$new" &&
-       $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
-    then
-      rm -f "$dsttmp"
-    else
-      # If $backupsuffix is set, and the file being installed
-      # already exists, attempt a backup.  Don't worry if it fails,
-      # e.g., if mv doesn't support -f.
-      if test -n "$backupsuffix" && test -f "$dst"; then
-        $doit $mvcmd -f "$dst" "$dst$backupsuffix" 2>/dev/null
-      fi
+    # Now rename the file to the real destination.
+    { $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null \
+      || {
+	   # The rename failed, perhaps because mv can't rename something else
+	   # to itself, or perhaps because mv is so ancient that it does not
+	   # support -f.

-      # Rename the file to the real destination.
-      $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
+	   # Now remove or move aside any old file at destination location.
+	   # We try this two ways since rm can't unlink itself on some
+	   # systems and the destination file might be busy for other
+	   # reasons.  In this case, the final cleanup might fail but the new
+	   # file should still install successfully.
+	   {
+	     if test -f "$dst"; then
+	       $doit $rmcmd -f "$dst" 2>/dev/null \
+	       || { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null \
+		     && { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }; }\
+	       || {
+		 echo "$0: cannot unlink or rename $dst" >&2
+		 (exit 1); exit 1
+	       }
+	     else
+	       :
+	     fi
+	   } &&

-      # The rename failed, perhaps because mv can't rename something else
-      # to itself, or perhaps because mv is so ancient that it does not
-      # support -f.
-      {
-        # Now remove or move aside any old file at destination location.
-        # We try this two ways since rm can't unlink itself on some
-        # systems and the destination file might be busy for other
-        # reasons.  In this case, the final cleanup might fail but the new
-        # file should still install successfully.
-        {
-          test ! -f "$dst" ||
-          $doit $rmcmd "$dst" 2>/dev/null ||
-          { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
-            { $doit $rmcmd "$rmtmp" 2>/dev/null; :; }
-          } ||
-          { echo "$0: cannot unlink or rename $dst" >&2
-            (exit 1); exit 1
-          }
-        } &&
-
-        # Now rename the file to the real destination.
-        $doit $mvcmd "$dsttmp" "$dst"
-      }
-    fi || exit 1
+	   # Now rename the file to the real destination.
+	   $doit $mvcmd "$dsttmp" "$dst"
+	 }
+    } || exit 1

    trap '' 0
  fi
 done

 # Local variables:
-# eval: (add-hook 'before-save-hook 'time-stamp)
+# eval: (add-hook 'write-file-hooks 'time-stamp)
 # time-stamp-start: "scriptversion="
 # time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC0"
-# time-stamp-end: "; # UTC"
+# time-stamp-end: "$"
 # End:
--- a/autoconf/py-compile
+++ b/autoconf/py-compile
@ -1,9 +1,9 @@
 #!/bin/sh
 # py-compile - Compile a Python program

-scriptversion=2023-03-30.00; # UTC
+scriptversion=2011-06-08.12; # UTC

-# Copyright (C) 2000-2023 Free Software Foundation, Inc.
+# Copyright (C) 2000-2014 Free Software Foundation, Inc.

 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@ -16,7 +16,7 @@ scriptversion=2023-03-30.00; # UTC
 # GNU General Public License for more details.

 # You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.

 # As a special exception to the GNU General Public License, if you
 # distribute this file as part of a program that contains a
@ -27,7 +27,7 @@ scriptversion=2023-03-30.00; # UTC
 # bugs to <bug-automake@gnu.org> or send patches to
 # <automake-patches@gnu.org>.

-if test -z "$PYTHON"; then
+if [ -z "$PYTHON" ]; then
  PYTHON=python
 fi

@ -62,19 +62,13 @@ while test $# -ne 0; do
      ;;
    -h|--help)
      cat <<\EOF
-Usage: py-compile [options] FILES...
+Usage: py-compile [--help] [--version] [--basedir DIR] [--destdir DIR] FILES..."

 Byte compile some python scripts FILES.  Use --destdir to specify any
 leading directory path to the FILES that you don't want to include in the
 byte compiled file.  Specify --basedir for any additional path information you
 do want to be shown in the byte compiled file.

-Options:
-  --basedir DIR   Prefix all FILES with DIR, and include in error messages.
-  --destdir DIR   Prefix all FILES with DIR before compiling.
-  -v, --version   Display version information.
-  -h, --help      This help screen.
-
 Example:
  py-compile --destdir /tmp/pkg-root --basedir /usr/share/test test.py test2.py

@ -100,143 +94,77 @@ EOF
  shift
 done

-if test $# -eq 0; then
-  usage_error "no files given"
+files=$*
+if test -z "$files"; then
+    usage_error "no files given"
 fi

 # if basedir was given, then it should be prepended to filenames before
 # byte compilation.
-if test -z "$basedir"; then
-  pathtrans="path = file"
+if [ -z "$basedir" ]; then
+    pathtrans="path = file"
 else
-  pathtrans="path = os.path.join('$basedir', file)"
+    pathtrans="path = os.path.join('$basedir', file)"
 fi

 # if destdir was given, then it needs to be prepended to the filename to
 # byte compile but not go into the compiled file.
-if test -z "$destdir"; then
-  filetrans="filepath = path"
+if [ -z "$destdir" ]; then
+    filetrans="filepath = path"
 else
-  filetrans="filepath = os.path.normpath('$destdir' + os.sep + path)"
+    filetrans="filepath = os.path.normpath('$destdir' + os.sep + path)"
 fi

-python_major=`$PYTHON -c 'import sys; print(sys.version_info[0])'`
-if test -z "$python_major"; then
-  usage_error "could not determine $PYTHON major version"
-fi
-
-case $python_major in
-[01])
-  usage_error "python version 0.x and 1.x not supported"
-  ;;
-esac
-
-python_minor=`$PYTHON -c 'import sys; print(sys.version_info[1])'`
-
-# NB: When adding support for newer versions, prefer copying & adding new cases
-# rather than try to keep things merged with shell variables.
-
-# First byte compile (no optimization) all the modules.
-# This works for all currently known Python versions.
 $PYTHON -c "
-import sys, os, py_compile
+import sys, os, py_compile, imp

-try:
-    import importlib
-except ImportError:
-    importlib = None
-
-# importlib.util.cache_from_source was added in 3.4
-if (
-        hasattr(importlib, 'util')
-        and hasattr(importlib.util, 'cache_from_source')
-):
-    destpath = importlib.util.cache_from_source
-else:
-    destpath = lambda filepath: filepath + 'c'
+files = '''$files'''

 sys.stdout.write('Byte-compiling python modules...\n')
-for file in sys.argv[1:]:
+for file in files.split():
    $pathtrans
    $filetrans
-    if (
-            not os.path.exists(filepath)
-            or not (len(filepath) >= 3 and filepath[-3:] == '.py')
-     ):
-        continue
-    sys.stdout.write(file + ' ')
+    if not os.path.exists(filepath) or not (len(filepath) >= 3
+                                            and filepath[-3:] == '.py'):
+	    continue
+    sys.stdout.write(file)
    sys.stdout.flush()
-    py_compile.compile(filepath, destpath(filepath), path)
-sys.stdout.write('\n')" "$@" || exit $?
+    if hasattr(imp, 'get_tag'):
+        py_compile.compile(filepath, imp.cache_from_source(filepath), path)
+    else:
+        py_compile.compile(filepath, filepath + 'c', path)
+sys.stdout.write('\n')" || exit $?

-# Then byte compile w/optimization all the modules.
+# this will fail for python < 1.5, but that doesn't matter ...
 $PYTHON -O -c "
-import sys, os, py_compile
+import sys, os, py_compile, imp

-try:
-    import importlib
-except ImportError:
-    importlib = None
-
-# importlib.util.cache_from_source was added in 3.4
-if (
-        hasattr(importlib, 'util')
-        and hasattr(importlib.util, 'cache_from_source')
-):
-    destpath = importlib.util.cache_from_source
-else:
-    destpath = lambda filepath: filepath + 'o'
-
-# pypy2 does not use .pyo optimization
-if sys.version_info.major <= 2 and hasattr(sys, 'pypy_translation_info'):
+# pypy does not use .pyo optimization
+if hasattr(sys, 'pypy_translation_info'):
    sys.exit(0)

+files = '''$files'''
 sys.stdout.write('Byte-compiling python modules (optimized versions) ...\n')
-for file in sys.argv[1:]:
+for file in files.split():
    $pathtrans
    $filetrans
-    if (
-            not os.path.exists(filepath)
-            or not (len(filepath) >= 3 and filepath[-3:] == '.py')
-    ):
-        continue
-    sys.stdout.write(file + ' ')
+    if not os.path.exists(filepath) or not (len(filepath) >= 3
+                                            and filepath[-3:] == '.py'):
+	    continue
+    sys.stdout.write(file)
    sys.stdout.flush()
-    py_compile.compile(filepath, destpath(filepath), path)
-sys.stdout.write('\n')" "$@" 2>/dev/null || exit $?
-
-# Then byte compile w/more optimization.
-# Only do this for Python 3.5+, see https://bugs.gnu.org/38043 for background.
-case $python_major.$python_minor in
-2.*|3.[0-4])
-  ;;
-*)
-  $PYTHON -OO -c "
-import sys, os, py_compile, importlib
-
-sys.stdout.write('Byte-compiling python modules (more optimized versions)'
-                 ' ...\n')
-for file in sys.argv[1:]:
-    $pathtrans
-    $filetrans
-    if (
-            not os.path.exists(filepath)
-            or not (len(filepath) >= 3 and filepath[-3:] == '.py')
-    ):
-        continue
-    sys.stdout.write(file + ' ')
-    sys.stdout.flush()
-    py_compile.compile(filepath, importlib.util.cache_from_source(filepath), path)
-sys.stdout.write('\n')" "$@" 2>/dev/null || exit $?
-  ;;
-esac
+    if hasattr(imp, 'get_tag'):
+        py_compile.compile(filepath, imp.cache_from_source(filepath, False), path)
+    else:
+        py_compile.compile(filepath, filepath + 'o', path)
+sys.stdout.write('\n')" 2>/dev/null || :

 # Local Variables:
 # mode: shell-script
 # sh-indentation: 2
-# eval: (add-hook 'before-save-hook 'time-stamp)
+# eval: (add-hook 'write-file-hooks 'time-stamp)
 # time-stamp-start: "scriptversion="
 # time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC0"
+# time-stamp-time-zone: "UTC"
 # time-stamp-end: "; # UTC"
 # End:
--- a/base/Makefile
+++ b/base/Makefile
@ -31,10 +31,10 @@ CLEAN_TARGETS += $(BASE_DEPENDS) $(BASE_OBJECTS) \
 	$(BASE_TARGET)

 $(BASE_TARGET): $(BASE_OBJECTS)
-	$(SHOW) "    [AR] $@"
+	@echo "    [AR] $@"
 	$(Q) $(RM) $@
 	$(Q) $(AR) rsv $@ $(BASE_OBJECTS) > /dev/null

-ifeq ("$(USE_TRACKING)","yes")
+ifeq ("$(DEPENDS)","yes")
 -include $(BASE_DEPENDS)
 endif
--- a/base/data-struct/hash.c
+++ b/base/data-struct/hash.c
@ -30,10 +30,10 @@ struct dm_hash_table {
 	unsigned num_nodes;
 	unsigned num_hint;
 	unsigned mask_slots;    /* (slots - 1) -> used as hash mask */
-	unsigned collisions;    /* Collisions of hash keys */
+	unsigned collisions;    /* Collissions of hash keys */
 	unsigned search;        /* How many keys were searched */
 	unsigned found;         /* How many nodes were found */
-	unsigned same_hash;     /* Was there a collision with same masked hash and len ? */
+	unsigned same_hash;     /* Was there a colision with same masked hash and len ? */
 	struct dm_hash_node **slots;
 };

@ -41,7 +41,7 @@ struct dm_hash_table {
 static unsigned _hash(const void *key, unsigned len)
 {
 	/* Permutation of the Integers 0 through 255 */
-	static const unsigned char _nums[] = {
+	static unsigned char _nums[] = {
 	1, 14, 110, 25, 97, 174, 132, 119, 138, 170, 125, 118, 27, 233, 140, 51,
 	87, 197, 177, 107, 234, 169, 56, 68, 30, 7, 173, 73, 188, 40, 36, 65,
 	49, 213, 104, 190, 57, 211, 148, 223, 48, 115, 15, 2, 67, 186, 210, 28,
@ -348,7 +348,7 @@ int dm_hash_insert_allow_multiple(struct dm_hash_table *t, const char *key,

 /*
 * Look through multiple entries with the same key for one that has a
- * matching val and return that.  If none have matching val, return NULL.
+ * matching val and return that.  If none have maching val, return NULL.
 */
 void *dm_hash_lookup_with_val(struct dm_hash_table *t, const char *key,
 			      const void *val, uint32_t val_len)
--- a/base/data-struct/radix-tree-adaptive.c
+++ b/base/data-struct/radix-tree-adaptive.c
@ -19,7 +19,6 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
-#include <ctype.h>

 //----------------------------------------------------------------

@ -70,7 +69,7 @@ struct node48 {
 };

 struct node256 {
-	uint32_t nr_entries;
+        uint32_t nr_entries;
 	struct value values[256];
 };

@ -100,7 +99,7 @@ struct radix_tree *radix_tree_create(radix_value_dtr dtr, void *dtr_context)
 static inline void _dtr(struct radix_tree *rt, union radix_value v)
 {
 	if (rt->dtr)
-		rt->dtr(rt->dtr_context, v);
+        	rt->dtr(rt->dtr_context, v);
 }

 // Returns the number of values removed
@ -119,8 +118,8 @@ static unsigned _free_node(struct radix_tree *rt, struct value v)
 		break;

 	case VALUE:
-		_dtr(rt, v.value);
-		nr = 1;
+        	_dtr(rt, v.value);
+        	nr = 1;
 		break;

 	case VALUE_CHAIN:
@ -179,9 +178,9 @@ unsigned radix_tree_size(struct radix_tree *rt)
 	return rt->nr_entries;
 }

-static bool _insert(struct radix_tree *rt, struct value *v, const uint8_t *kb, const uint8_t *ke, union radix_value rv);
+static bool _insert(struct radix_tree *rt, struct value *v, uint8_t *kb, uint8_t *ke, union radix_value rv);

-static bool _insert_unset(struct radix_tree *rt, struct value *v, const uint8_t *kb, const uint8_t *ke, union radix_value rv)
+static bool _insert_unset(struct radix_tree *rt, struct value *v, uint8_t *kb, uint8_t *ke, union radix_value rv)
 {
 	unsigned len = ke - kb;

@ -208,7 +207,7 @@ static bool _insert_unset(struct radix_tree *rt, struct value *v, const uint8_t
 	return true;
 }

-static bool _insert_value(struct radix_tree *rt, struct value *v, const uint8_t *kb, const uint8_t *ke, union radix_value rv)
+static bool _insert_value(struct radix_tree *rt, struct value *v, uint8_t *kb, uint8_t *ke, union radix_value rv)
 {
 	unsigned len = ke - kb;

@ -235,7 +234,7 @@ static bool _insert_value(struct radix_tree *rt, struct value *v, const uint8_t
 	return true;
 }

-static bool _insert_value_chain(struct radix_tree *rt, struct value *v, const uint8_t *kb, const uint8_t *ke, union radix_value rv)
+static bool _insert_value_chain(struct radix_tree *rt, struct value *v, uint8_t *kb, uint8_t *ke, union radix_value rv)
 {
 	struct value_chain *vc = v->value.ptr;
 	return _insert(rt, &vc->child, kb, ke, rv);
@ -249,7 +248,7 @@ static unsigned min(unsigned lhs, unsigned rhs)
 		return rhs;
 }

-static bool _insert_prefix_chain(struct radix_tree *rt, struct value *v, const uint8_t *kb, const uint8_t *ke, union radix_value rv)
+static bool _insert_prefix_chain(struct radix_tree *rt, struct value *v, uint8_t *kb, uint8_t *ke, union radix_value rv)
 {
 	struct prefix_chain *pc = v->value.ptr;

@ -314,7 +313,7 @@ static bool _insert_prefix_chain(struct radix_tree *rt, struct value *v, const u
 	return true;
 }

-static bool _insert_node4(struct radix_tree *rt, struct value *v, const uint8_t *kb, const uint8_t *ke, union radix_value rv)
+static bool _insert_node4(struct radix_tree *rt, struct value *v, uint8_t *kb, uint8_t *ke, union radix_value rv)
 {
 	struct node4 *n4 = v->value.ptr;
 	if (n4->nr_entries == 4) {
@ -344,7 +343,7 @@ static bool _insert_node4(struct radix_tree *rt, struct value *v, const uint8_t
 	return true;
 }

-static bool _insert_node16(struct radix_tree *rt, struct value *v, const uint8_t *kb, const uint8_t *ke, union radix_value rv)
+static bool _insert_node16(struct radix_tree *rt, struct value *v, uint8_t *kb, uint8_t *ke, union radix_value rv)
 {
 	struct node16 *n16 = v->value.ptr;

@ -383,7 +382,7 @@ static bool _insert_node16(struct radix_tree *rt, struct value *v, const uint8_t
 	return true;
 }

-static bool _insert_node48(struct radix_tree *rt, struct value *v, const uint8_t *kb, const uint8_t *ke, union radix_value rv)
+static bool _insert_node48(struct radix_tree *rt, struct value *v, uint8_t *kb, uint8_t *ke, union radix_value rv)
 {
 	struct node48 *n48 = v->value.ptr;
 	if (n48->nr_entries == 48) {
@ -418,20 +417,20 @@ static bool _insert_node48(struct radix_tree *rt, struct value *v, const uint8_t
 	return true;
 }

-static bool _insert_node256(struct radix_tree *rt, struct value *v, const uint8_t *kb, const uint8_t *ke, union radix_value rv)
+static bool _insert_node256(struct radix_tree *rt, struct value *v, uint8_t *kb, uint8_t *ke, union radix_value rv)
 {
 	struct node256 *n256 = v->value.ptr;
 	bool r, was_unset = n256->values[*kb].type == UNSET;

 	r = _insert(rt, n256->values + *kb, kb + 1, ke, rv);
 	if (r && was_unset)
-		n256->nr_entries++;
+        	n256->nr_entries++;

 	return r;
 }

 // FIXME: the tree should not be touched if insert fails (eg, OOM)
-static bool _insert(struct radix_tree *rt, struct value *v, const uint8_t *kb, const uint8_t *ke, union radix_value rv)
+static bool _insert(struct radix_tree *rt, struct value *v, uint8_t *kb, uint8_t *ke, union radix_value rv)
 {
 	if (kb == ke) {
 		if (v->type == UNSET) {
@ -488,10 +487,10 @@ static bool _insert(struct radix_tree *rt, struct value *v, const uint8_t *kb, c

 struct lookup_result {
 	struct value *v;
-	const uint8_t *kb;
+	uint8_t *kb;
 };

-static struct lookup_result _lookup_prefix(struct value *v, const uint8_t *kb, const uint8_t *ke)
+static struct lookup_result _lookup_prefix(struct value *v, uint8_t *kb, uint8_t *ke)
 {
 	unsigned i;
 	struct value_chain *vc;
@ -501,7 +500,7 @@ static struct lookup_result _lookup_prefix(struct value *v, const uint8_t *kb, c
 	struct node48 *n48;
 	struct node256 *n256;

-	if (kb == ke || !kb) /* extra check for !kb for coverity */
+	if (kb == ke)
 		return (struct lookup_result) {.v = v, .kb = kb};

 	switch (v->type) {
@ -556,10 +555,8 @@ static struct lookup_result _lookup_prefix(struct value *v, const uint8_t *kb, c
 	return (struct lookup_result) {.v = v, .kb = kb};
 }

-bool radix_tree_insert(struct radix_tree *rt, const void *key, size_t keylen, union radix_value rv)
+bool radix_tree_insert(struct radix_tree *rt, uint8_t *kb, uint8_t *ke, union radix_value rv)
 {
-	const uint8_t *kb = key;
-	const uint8_t *ke = kb + keylen;
 	struct lookup_result lr = _lookup_prefix(&rt->root, kb, ke);
 	return _insert(rt, lr.v, lr.kb, ke, rv);
 }
@ -567,14 +564,14 @@ bool radix_tree_insert(struct radix_tree *rt, const void *key, size_t keylen, un
 // Note the degrade functions also free the original node.
 static void _degrade_to_n4(struct node16 *n16, struct value *result)
 {
-	struct node4 *n4 = zalloc(sizeof(*n4));
+        struct node4 *n4 = zalloc(sizeof(*n4));

 	assert(n4 != NULL);

-	n4->nr_entries = n16->nr_entries;
-	memcpy(n4->keys, n16->keys, n16->nr_entries * sizeof(*n4->keys));
-	memcpy(n4->values, n16->values, n16->nr_entries * sizeof(*n4->values));
-	free(n16);
+        n4->nr_entries = n16->nr_entries;
+        memcpy(n4->keys, n16->keys, n16->nr_entries * sizeof(*n4->keys));
+        memcpy(n4->values, n16->values, n16->nr_entries * sizeof(*n4->values));
+        free(n16);

 	result->type = NODE4;
 	result->value.ptr = n4;
@ -583,20 +580,20 @@ static void _degrade_to_n4(struct node16 *n16, struct value *result)
 static void _degrade_to_n16(struct node48 *n48, struct value *result)
 {
 	unsigned i, count = 0;
-	struct node16 *n16 = zalloc(sizeof(*n16));
+        struct node16 *n16 = zalloc(sizeof(*n16));

 	assert(n16 != NULL);

-	n16->nr_entries = n48->nr_entries;
-	for (i = 0; i < 256; i++) {
-		if (n48->keys[i] < 48) {
-			n16->keys[count] = i;
-			n16->values[count] = n48->values[n48->keys[i]];
-			count++;
-		}
-	}
+        n16->nr_entries = n48->nr_entries;
+        for (i = 0; i < 256; i++) {
+	        if (n48->keys[i] < 48) {
+		        n16->keys[count] = i;
+		        n16->values[count] = n48->values[n48->keys[i]];
+		        count++;
+	        }
+        }

-	free(n48);
+        free(n48);

 	result->type = NODE16;
 	result->value.ptr = n16;
@ -604,13 +601,13 @@ static void _degrade_to_n16(struct node48 *n48, struct value *result)

 static void _degrade_to_n48(struct node256 *n256, struct value *result)
 {
-	unsigned i, count = 0;
-	struct node48 *n48 = zalloc(sizeof(*n48));
+        unsigned i, count = 0;
+        struct node48 *n48 = zalloc(sizeof(*n48));

 	assert(n48 != NULL);

-	n48->nr_entries = n256->nr_entries;
-	for (i = 0; i < 256; i++) {
+        n48->nr_entries = n256->nr_entries;
+        for (i = 0; i < 256; i++) {
 		if (n256->values[i].type == UNSET)
 			n48->keys[i] = 48;

@ -619,9 +616,9 @@ static void _degrade_to_n48(struct node256 *n256, struct value *result)
 			n48->values[count] = n256->values[i];
 			count++;
 		}
-	}
+        }

-	free(n256);
+        free(n256);

 	result->type = NODE48;
 	result->value.ptr = n48;
@ -635,14 +632,14 @@ static void _erase_elt(void *array, size_t obj_size, unsigned count, unsigned id
 		return;

 	memmove(((uint8_t *) array) + (obj_size * idx),
-		((uint8_t *) array) + (obj_size * (idx + 1)),
-		obj_size * (count - idx - 1));
+                ((uint8_t *) array) + (obj_size * (idx + 1)),
+                obj_size * (count - idx - 1));

 	// Zero the now unused last elt (set's v.type to UNSET)
 	memset(((uint8_t *) array) + (count - 1) * obj_size, 0, obj_size);
 }

-static bool _remove(struct radix_tree *rt, struct value *root, const uint8_t *kb, const uint8_t *ke)
+static bool _remove(struct radix_tree *rt, struct value *root, uint8_t *kb, uint8_t *ke)
 {
 	bool r;
 	unsigned i, j;
@ -654,27 +651,27 @@ static bool _remove(struct radix_tree *rt, struct value *root, const uint8_t *kb
 	struct node256 *n256;

 	if (kb == ke) {
-		if (root->type == VALUE) {
-			root->type = UNSET;
-			_dtr(rt, root->value);
-			return true;
+        	if (root->type == VALUE) {
+                	root->type = UNSET;
+                	_dtr(rt, root->value);
+                	return true;

-		} else if (root->type == VALUE_CHAIN) {
+                } else if (root->type == VALUE_CHAIN) {
 			vc = root->value.ptr;
 			_dtr(rt, vc->value);
 			memcpy(root, &vc->child, sizeof(*root));
 			free(vc);
 			return true;

-		} else
+                } else
 			return false;
 	}

 	switch (root->type) {
 	case UNSET:
 	case VALUE:
-		// this is a value for a prefix of the key
-		return false;
+        	// this is a value for a prefix of the key
+        	return false;

 	case VALUE_CHAIN:
 		vc = root->value.ptr;
@ -689,11 +686,11 @@ static bool _remove(struct radix_tree *rt, struct value *root, const uint8_t *kb
 	case PREFIX_CHAIN:
 		pc = root->value.ptr;
 		if (ke - kb < pc->len)
-			return false;
+        		return false;

 		for (i = 0; i < pc->len; i++)
 			if (kb[i] != pc->prefix[i])
-				return false;
+        			return false;

 		r = _remove(rt, &pc->child, kb + pc->len, ke);
 		if (r && pc->child.type == UNSET) {
@ -708,12 +705,12 @@ static bool _remove(struct radix_tree *rt, struct value *root, const uint8_t *kb
 			if (n4->keys[i] == *kb) {
 				r = _remove(rt, n4->values + i, kb + 1, ke);
 				if (r && n4->values[i].type == UNSET) {
-					if (i < n4->nr_entries) {
-						_erase_elt(n4->keys, sizeof(*n4->keys), n4->nr_entries, i);
-						_erase_elt(n4->values, sizeof(*n4->values), n4->nr_entries, i);
-					}
+        				if (i < n4->nr_entries) {
+	        				_erase_elt(n4->keys, sizeof(*n4->keys), n4->nr_entries, i);
+	        				_erase_elt(n4->values, sizeof(*n4->values), n4->nr_entries, i);
+        				}

-					n4->nr_entries--;
+        				n4->nr_entries--;
 					if (!n4->nr_entries) {
 						free(n4);
 						root->type = UNSET;
@ -725,19 +722,19 @@ static bool _remove(struct radix_tree *rt, struct value *root, const uint8_t *kb
 		return false;

 	case NODE16:
-		n16 = root->value.ptr;
+        	n16 = root->value.ptr;
 		for (i = 0; i < n16->nr_entries; i++) {
 			if (n16->keys[i] == *kb) {
 				r = _remove(rt, n16->values + i, kb + 1, ke);
 				if (r && n16->values[i].type == UNSET) {
-					if (i < n16->nr_entries) {
-						_erase_elt(n16->keys, sizeof(*n16->keys), n16->nr_entries, i);
-						_erase_elt(n16->values, sizeof(*n16->values), n16->nr_entries, i);
-					}
+        				if (i < n16->nr_entries) {
+	        				_erase_elt(n16->keys, sizeof(*n16->keys), n16->nr_entries, i);
+	        				_erase_elt(n16->values, sizeof(*n16->values), n16->nr_entries, i);
+        				}

-					n16->nr_entries--;
+        				n16->nr_entries--;
 					if (n16->nr_entries <= 4) {
-						_degrade_to_n4(n16, root);
+        					_degrade_to_n4(n16, root);
 					}
 				}
 				return r;
@ -749,18 +746,18 @@ static bool _remove(struct radix_tree *rt, struct value *root, const uint8_t *kb
 		n48 = root->value.ptr;
 		i = n48->keys[*kb];
 		if (i < 48) {
-			r = _remove(rt, n48->values + i, kb + 1, ke);
-			if (r && n48->values[i].type == UNSET) {
-				n48->keys[*kb] = 48;
-				for (j = 0; j < 256; j++)
-					if (n48->keys[j] < 48 && n48->keys[j] > i)
-						n48->keys[j]--;
+        		r = _remove(rt, n48->values + i, kb + 1, ke);
+        		if (r && n48->values[i].type == UNSET) {
+                		n48->keys[*kb] = 48;
+                		for (j = 0; j < 256; j++)
+	                		if (n48->keys[j] < 48 && n48->keys[j] > i)
+		                		n48->keys[j]--;
 				_erase_elt(n48->values, sizeof(*n48->values), n48->nr_entries, i);
 				n48->nr_entries--;
 				if (n48->nr_entries <= 16)
-					_degrade_to_n16(n48, root);
-			}
-			return r;
+        				_degrade_to_n16(n48, root);
+        		}
+        		return r;
 		}
 		return false;

@ -770,7 +767,7 @@ static bool _remove(struct radix_tree *rt, struct value *root, const uint8_t *kb
 		if (r && n256->values[*kb].type == UNSET) {
 			n256->nr_entries--;
 			if (n256->nr_entries <= 48)
-				_degrade_to_n48(n256, root);
+        			_degrade_to_n48(n256, root);
 		}
 		return r;
 	}
@ -778,14 +775,11 @@ static bool _remove(struct radix_tree *rt, struct value *root, const uint8_t *kb
 	return false;
 }

-bool radix_tree_remove(struct radix_tree *rt, const void *key, size_t keylen)
+bool radix_tree_remove(struct radix_tree *rt, uint8_t *key_begin, uint8_t *key_end)
 {
-	const uint8_t *kb = key;
-	const uint8_t *ke = kb + keylen;
-
-	if (_remove(rt, &rt->root, kb, ke)) {
-		rt->nr_entries--;
-		return true;
+	if (_remove(rt, &rt->root, key_begin, key_end)) {
+        	rt->nr_entries--;
+        	return true;
 	}

 	return false;
@ -793,25 +787,25 @@ bool radix_tree_remove(struct radix_tree *rt, const void *key, size_t keylen)

 //----------------------------------------------------------------

-static bool _prefix_chain_matches(const struct lookup_result *lr, const uint8_t *ke)
+static bool _prefix_chain_matches(struct lookup_result *lr, uint8_t *ke)
 {
-	// It's possible the top node is a prefix chain, and
-	// the remaining key matches part of it.
-	if (lr->v->type == PREFIX_CHAIN) {
-		unsigned i, rlen = ke - lr->kb;
-		const struct prefix_chain *pc = lr->v->value.ptr;
-		if (rlen < pc->len) {
-			for (i = 0; i < rlen; i++)
-				if (pc->prefix[i] != lr->kb[i])
-					return false;
-			return true;
+        // It's possible the top node is a prefix chain, and
+        // the remaining key matches part of it.
+        if (lr->v->type == PREFIX_CHAIN) {
+                unsigned i, rlen = ke - lr->kb;
+                struct prefix_chain *pc = lr->v->value.ptr;
+                if (rlen < pc->len) {
+                        for (i = 0; i < rlen; i++)
+                                if (pc->prefix[i] != lr->kb[i])
+                                        return false;
+                        return true;
 		}
-	}
+        }

-	return false;
+        return false;
 }

-static bool _remove_subtree(struct radix_tree *rt, struct value *root, const uint8_t *kb, const uint8_t *ke, unsigned *count)
+static bool _remove_subtree(struct radix_tree *rt, struct value *root, uint8_t *kb, uint8_t *ke, unsigned *count)
 {
 	bool r;
 	unsigned i, j, len;
@ -832,7 +826,7 @@ static bool _remove_subtree(struct radix_tree *rt, struct value *root, const uin
 	case UNSET:
 	case VALUE:
 		// No entries with the given prefix
-		return true;
+        	return true;

 	case VALUE_CHAIN:
 		vc = root->value.ptr;
@ -849,7 +843,7 @@ static bool _remove_subtree(struct radix_tree *rt, struct value *root, const uin
 		len = min(pc->len, ke - kb);
 		for (i = 0; i < len; i++)
 			if (kb[i] != pc->prefix[i])
-				return true;
+        			return true;

 		r = _remove_subtree(rt, &pc->child, len < pc->len ? ke : (kb + pc->len), ke, count);
 		if (r && pc->child.type == UNSET) {
@ -864,12 +858,12 @@ static bool _remove_subtree(struct radix_tree *rt, struct value *root, const uin
 			if (n4->keys[i] == *kb) {
 				r = _remove_subtree(rt, n4->values + i, kb + 1, ke, count);
 				if (r && n4->values[i].type == UNSET) {
-					if (i < n4->nr_entries) {
-						_erase_elt(n4->keys, sizeof(*n4->keys), n4->nr_entries, i);
-						_erase_elt(n4->values, sizeof(*n4->values), n4->nr_entries, i);
-					}
+        				if (i < n4->nr_entries) {
+	        				_erase_elt(n4->keys, sizeof(*n4->keys), n4->nr_entries, i);
+	        				_erase_elt(n4->values, sizeof(*n4->values), n4->nr_entries, i);
+        				}

-					n4->nr_entries--;
+        				n4->nr_entries--;
 					if (!n4->nr_entries) {
 						free(n4);
 						root->type = UNSET;
@ -881,19 +875,19 @@ static bool _remove_subtree(struct radix_tree *rt, struct value *root, const uin
 		return true;

 	case NODE16:
-		n16 = root->value.ptr;
+        	n16 = root->value.ptr;
 		for (i = 0; i < n16->nr_entries; i++) {
 			if (n16->keys[i] == *kb) {
 				r = _remove_subtree(rt, n16->values + i, kb + 1, ke, count);
 				if (r && n16->values[i].type == UNSET) {
-					if (i < n16->nr_entries) {
-						_erase_elt(n16->keys, sizeof(*n16->keys), n16->nr_entries, i);
-						_erase_elt(n16->values, sizeof(*n16->values), n16->nr_entries, i);
-					}
+        				if (i < n16->nr_entries) {
+	        				_erase_elt(n16->keys, sizeof(*n16->keys), n16->nr_entries, i);
+	        				_erase_elt(n16->values, sizeof(*n16->values), n16->nr_entries, i);
+        				}

-					n16->nr_entries--;
+        				n16->nr_entries--;
 					if (n16->nr_entries <= 4)
-						_degrade_to_n4(n16, root);
+        					_degrade_to_n4(n16, root);
 				}
 				return r;
 			}
@ -904,18 +898,18 @@ static bool _remove_subtree(struct radix_tree *rt, struct value *root, const uin
 		n48 = root->value.ptr;
 		i = n48->keys[*kb];
 		if (i < 48) {
-			r = _remove_subtree(rt, n48->values + i, kb + 1, ke, count);
-			if (r && n48->values[i].type == UNSET) {
-				n48->keys[*kb] = 48;
-				for (j = 0; j < 256; j++)
-					if (n48->keys[j] < 48 && n48->keys[j] > i)
-						n48->keys[j]--;
+        		r = _remove_subtree(rt, n48->values + i, kb + 1, ke, count);
+        		if (r && n48->values[i].type == UNSET) {
+                		n48->keys[*kb] = 48;
+                		for (j = 0; j < 256; j++)
+	                		if (n48->keys[j] < 48 && n48->keys[j] > i)
+		                		n48->keys[j]--;
 				_erase_elt(n48->values, sizeof(*n48->values), n48->nr_entries, i);
 				n48->nr_entries--;
 				if (n48->nr_entries <= 16)
-					_degrade_to_n16(n48, root);
-			}
-			return r;
+        				_degrade_to_n16(n48, root);
+        		}
+        		return r;
 		}
 		return true;

@ -928,7 +922,7 @@ static bool _remove_subtree(struct radix_tree *rt, struct value *root, const uin
 		if (r && n256->values[*kb].type == UNSET) {
 			n256->nr_entries--;
 			if (n256->nr_entries <= 48)
-				_degrade_to_n48(n256, root);
+        			_degrade_to_n48(n256, root);
 		}
 		return r;
 	}
@ -937,13 +931,11 @@ static bool _remove_subtree(struct radix_tree *rt, struct value *root, const uin
 	return false;
 }

-unsigned radix_tree_remove_prefix(struct radix_tree *rt, const void *prefix, size_t prefix_len)
+unsigned radix_tree_remove_prefix(struct radix_tree *rt, uint8_t *kb, uint8_t *ke)
 {
-	const uint8_t *kb = prefix;
-	const uint8_t *ke = kb + prefix_len;
-	unsigned count = 0;
+        unsigned count = 0;

-	if (_remove_subtree(rt, &rt->root, kb, ke, &count))
+        if (_remove_subtree(rt, &rt->root, kb, ke, &count))
 		rt->nr_entries -= count;

 	return count;
@ -951,11 +943,9 @@ unsigned radix_tree_remove_prefix(struct radix_tree *rt, const void *prefix, siz

 //----------------------------------------------------------------

-bool radix_tree_lookup(struct radix_tree *rt, const void *key, size_t keylen,
-		       union radix_value *result)
+bool radix_tree_lookup(struct radix_tree *rt,
+		       uint8_t *kb, uint8_t *ke, union radix_value *result)
 {
-	const uint8_t *kb = key;
-	const uint8_t *ke = kb + keylen;
 	struct value_chain *vc;
 	struct lookup_result lr = _lookup_prefix(&rt->root, kb, ke);
 	if (lr.kb == ke) {
@ -978,58 +968,58 @@ bool radix_tree_lookup(struct radix_tree *rt, const void *key, size_t keylen,
 }

 // FIXME: build up the keys too
-static bool _iterate(struct radix_tree_iterator *it, const struct value *v)
+static bool _iterate(struct value *v, struct radix_tree_iterator *it)
 {
 	unsigned i;
-	const struct value_chain *vc;
-	const struct prefix_chain *pc;
-	const struct node4 *n4;
-	const struct node16 *n16;
-	const struct node48 *n48;
-	const struct node256 *n256;
+	struct value_chain *vc;
+	struct prefix_chain *pc;
+	struct node4 *n4;
+	struct node16 *n16;
+	struct node48 *n48;
+	struct node256 *n256;

 	switch (v->type) {
 	case UNSET:
-		// can't happen
+        	// can't happen
 		break;

 	case VALUE:
-		return it->visit(it, NULL, 0, v->value);
+        	return it->visit(it, NULL, NULL, v->value);

 	case VALUE_CHAIN:
 		vc = v->value.ptr;
-		return it->visit(it, NULL, 0, vc->value) && _iterate(it, &vc->child);
+		return it->visit(it, NULL, NULL, vc->value) && _iterate(&vc->child, it);

 	case PREFIX_CHAIN:
 		pc = v->value.ptr;
-		return _iterate(it, &pc->child);
+		return _iterate(&pc->child, it);

 	case NODE4:
-		n4 = (const struct node4 *) v->value.ptr;
+		n4 = (struct node4 *) v->value.ptr;
 		for (i = 0; i < n4->nr_entries; i++)
-			if (!_iterate(it, n4->values + i))
-				return false;
-		return true;
+			if (!_iterate(n4->values + i, it))
+        			return false;
+        	return true;

 	case NODE16:
-		n16 = (const struct node16 *) v->value.ptr;
+		n16 = (struct node16 *) v->value.ptr;
 		for (i = 0; i < n16->nr_entries; i++)
-			if (!_iterate(it, n16->values + i))
-				return false;
+        		if (!_iterate(n16->values + i, it))
+        			return false;
 		return true;

 	case NODE48:
-		n48 = (const struct node48 *) v->value.ptr;
+		n48 = (struct node48 *) v->value.ptr;
 		for (i = 0; i < n48->nr_entries; i++)
-			if (!_iterate(it, n48->values + i))
-				return false;
+        		if (!_iterate(n48->values + i, it))
+        			return false;
 		return true;

 	case NODE256:
-		n256 = (const struct node256 *) v->value.ptr;
+		n256 = (struct node256 *) v->value.ptr;
 		for (i = 0; i < 256; i++)
-			if (n256->values[i].type != UNSET && !_iterate(it, n256->values + i))
-				return false;
+        		if (n256->values[i].type != UNSET && !_iterate(n256->values + i, it))
+        			return false;
 		return true;
 	}

@ -1037,14 +1027,12 @@ static bool _iterate(struct radix_tree_iterator *it, const struct value *v)
 	return false;
 }

-void radix_tree_iterate(struct radix_tree *rt, const void *key, size_t keylen,
-			struct radix_tree_iterator *it)
+void radix_tree_iterate(struct radix_tree *rt, uint8_t *kb, uint8_t *ke,
+                        struct radix_tree_iterator *it)
 {
-	const uint8_t *kb = key;
-	const uint8_t *ke = kb + keylen;
 	struct lookup_result lr = _lookup_prefix(&rt->root, kb, ke);
 	if (lr.kb == ke || _prefix_chain_matches(&lr, ke))
-		(void) _iterate(it, lr.v);
+		(void) _iterate(lr.v, it);
 }

 //----------------------------------------------------------------
@ -1142,7 +1130,7 @@ static bool _check_nodes(struct value *v, unsigned *count)

 		if (ncount != n48->nr_entries) {
 			fprintf(stderr, "incorrect number of entries in n48, n48->nr_entries = %u, actual = %u\n",
-				n48->nr_entries, ncount);
+                                n48->nr_entries, ncount);
 			return false;
 		}

@ -1178,7 +1166,7 @@ static bool _check_nodes(struct value *v, unsigned *count)

 		if (ncount != n256->nr_entries) {
 			fprintf(stderr, "incorrect number of entries in n256, n256->nr_entries = %u, actual = %u\n",
-				n256->nr_entries, ncount);
+                                n256->nr_entries, ncount);
 			return false;
 		}

@ -1201,7 +1189,7 @@ bool radix_tree_is_well_formed(struct radix_tree *rt)

 	if (rt->nr_entries != count) {
 		fprintf(stderr, "incorrect entry count: rt->nr_entries = %u, actual = %u\n",
-			rt->nr_entries, count);
+                        rt->nr_entries, count);
 		return false;
 	}

@ -1219,7 +1207,6 @@ static void _dump(FILE *out, struct value v, unsigned indent)
 	struct node16 *n16;
 	struct node48 *n48;
 	struct node256 *n256;
-	unsigned printable;

 	if (v.type == UNSET)
 		return;
@ -1244,22 +1231,9 @@ static void _dump(FILE *out, struct value v, unsigned indent)

 	case PREFIX_CHAIN:
 		pc = v.value.ptr;
-		fprintf(out, "<prefix(%u): ", pc->len);
-		printable = 1;
+		fprintf(out, "<prefix: ");
 		for (i = 0; i < pc->len; i++)
-			if (!isprint(pc->prefix[i])) {
-				printable = 0;
-				break;
-			}
-		if (printable)
-			fputc('"', out);
-		for (i = 0; i < pc->len; i++)
-			if (printable)
-				fprintf(out, "%c", pc->prefix[i]);
-			else
-				fprintf(out, "%02x.", (unsigned) *(pc->prefix + i));
-		if (printable)
-			fputc('"', out);
+			fprintf(out, "%x.", (unsigned) *(pc->prefix + i));
 		fprintf(out, ">\n");
 		_dump(out, pc->child, indent + 1);
 		break;
@ -1268,7 +1242,7 @@ static void _dump(FILE *out, struct value v, unsigned indent)
 		n4 = v.value.ptr;
 		fprintf(out, "<n4: ");
 		for (i = 0; i < n4->nr_entries; i++)
-			fprintf(out, "%02x ", (unsigned) n4->keys[i]);
+			fprintf(out, "%x ", (unsigned) n4->keys[i]);
 		fprintf(out, ">\n");

 		for (i = 0; i < n4->nr_entries; i++)
@ -1279,7 +1253,7 @@ static void _dump(FILE *out, struct value v, unsigned indent)
 		n16 = v.value.ptr;
 		fprintf(out, "<n16: ");
 		for (i = 0; i < n16->nr_entries; i++)
-			fprintf(out, "%02x ", (unsigned) n16->keys[i]);
+			fprintf(out, "%x ", (unsigned) n16->keys[i]);
 		fprintf(out, ">\n");

 		for (i = 0; i < n16->nr_entries; i++)
@ -1291,7 +1265,7 @@ static void _dump(FILE *out, struct value v, unsigned indent)
 		fprintf(out, "<n48: ");
 		for (i = 0; i < 256; i++)
 			if (n48->keys[i] < 48)
-				fprintf(out, "%02x ", i);
+				fprintf(out, "%x ", i);
 		fprintf(out, ">\n");

 		for (i = 0; i < n48->nr_entries; i++) {
@ -1305,7 +1279,7 @@ static void _dump(FILE *out, struct value v, unsigned indent)
 		fprintf(out, "<n256: ");
 		for (i = 0; i < 256; i++)
 			if (n256->values[i].type != UNSET)
-				fprintf(out, "%02x ", i);
+				fprintf(out, "%x ", i);
 		fprintf(out, ">\n");

 		for (i = 0; i < 256; i++)
--- a/base/data-struct/radix-tree-simple.c
+++ b/base/data-struct/radix-tree-simple.c
@ -1,5 +1,5 @@
 // Copyright (C) 2018 Red Hat, Inc. All rights reserved.
-//
+// 
 // This file is part of LVM2.
 //
 // This copyrighted material is made available to anyone wishing to use,
@ -18,7 +18,6 @@
 #include <assert.h>
 #include <stdlib.h>
 #include <stdio.h>
-#include <ctype.h>

 //----------------------------------------------------------------
 // This implementation is based around nested binary trees.  Very
@ -38,12 +37,12 @@ struct node {
 struct radix_tree {
 	radix_value_dtr dtr;
 	void *dtr_context;
-	unsigned nr_entries;

 	struct node *root;
 };

-struct radix_tree *radix_tree_create(radix_value_dtr dtr, void *dtr_context)
+struct radix_tree *
+radix_tree_create(radix_value_dtr dtr, void *dtr_context)
 {
 	struct radix_tree *rt = zalloc(sizeof(*rt));

@ -106,7 +105,7 @@ unsigned radix_tree_size(struct radix_tree *rt)
 	return _count(rt->root);
 }

-static struct node **_lookup(struct node **pn, const uint8_t *kb, const uint8_t *ke)
+static struct node **_lookup(struct node **pn, uint8_t *kb, uint8_t *ke)
 {
 	struct node *n = *pn;

@ -123,7 +122,7 @@ static struct node **_lookup(struct node **pn, const uint8_t *kb, const uint8_t
 		return _lookup(&n->center, kb + 1, ke);
 }

-static bool _insert(struct node **pn, const uint8_t *kb, const uint8_t *ke, union radix_value v)
+static bool _insert(struct node **pn, uint8_t *kb, uint8_t *ke, union radix_value v)
 {
 	struct node *n = *pn;

@ -152,51 +151,39 @@ static bool _insert(struct node **pn, const uint8_t *kb, const uint8_t *ke, unio
 		return _insert(&n->center, kb + 1, ke, v);
 }

-bool radix_tree_insert(struct radix_tree *rt, const void *key, size_t keylen,
-		       union radix_value v)
+bool radix_tree_insert(struct radix_tree *rt, uint8_t *kb, uint8_t *ke, union radix_value v)
 {
-	const uint8_t *kb = key;
-	const uint8_t *ke = kb + keylen;
-
-	if (!_insert(&rt->root, kb, ke, v))
-		return false;
-
-	rt->nr_entries++;
-	return true;
+	return _insert(&rt->root, kb, ke, v);
 }

-bool radix_tree_remove(struct radix_tree *rt, const void *key, size_t keylen)
+bool radix_tree_remove(struct radix_tree *rt, uint8_t *kb, uint8_t *ke)
 {
-	const uint8_t *kb = key;
-	const uint8_t *ke = kb + keylen;
 	struct node **pn = _lookup(&rt->root, kb, ke);
 	struct node *n = *pn;

 	if (!n || !n->has_value)
 		return false;

-	rt->nr_entries--;
+	else {
+		if (rt->dtr)
+			rt->dtr(rt->dtr_context, n->value);

-	if (rt->dtr)
-	    rt->dtr(rt->dtr_context, n->value);
+		if (n->left || n->center || n->right) {
+			n->has_value = false;
+			return true;

-	if (n->left || n->center || n->right) {
-	    n->has_value = false;
-	    return true;
+		} else {
+			// FIXME: delete parent if this was the last entry
+			free(n);
+			*pn = NULL;
+		}

+		return true;
 	}
-
-	// FIXME: delete parent if this was the last entry
-	free(n);
-	*pn = NULL;
-
-	return true;
 }

-unsigned radix_tree_remove_prefix(struct radix_tree *rt, const void *key, size_t keylen)
+unsigned radix_tree_remove_prefix(struct radix_tree *rt, uint8_t *kb, uint8_t *ke)
 {
-	const uint8_t *kb = key;
-	const uint8_t *ke = kb + keylen;
 	struct node **pn;
 	unsigned count;

@ -210,20 +197,17 @@ unsigned radix_tree_remove_prefix(struct radix_tree *rt, const void *key, size_t
 	return count;
 }

-bool radix_tree_lookup(struct radix_tree *rt, const void *key, size_t keylen,
-		       union radix_value *result)
+bool
+radix_tree_lookup(struct radix_tree *rt, uint8_t *kb, uint8_t *ke, union radix_value *result)
 {
-	const uint8_t *kb = key;
-	const uint8_t *ke = kb + keylen;
 	struct node **pn = _lookup(&rt->root, kb, ke);
 	struct node *n = *pn;

 	if (n && n->has_value) {
 		*result = n->value;
 		return true;
-	}
-
-	return false;
+	} else
+		return false;
 }

 static void _iterate(struct node *n, struct radix_tree_iterator *it)
@ -235,18 +219,15 @@ static void _iterate(struct node *n, struct radix_tree_iterator *it)

 	if (n->has_value)
 		// FIXME: fill out the key
-		it->visit(it, NULL, 0, n->value);
+		it->visit(it, NULL, NULL, n->value);

 	_iterate(n->center, it);
 	_iterate(n->right, it);
 }

-void radix_tree_iterate(struct radix_tree *rt, const void *key, size_t keylen,
+void radix_tree_iterate(struct radix_tree *rt, uint8_t *kb, uint8_t *ke,
                        struct radix_tree_iterator *it)
 {
-	const uint8_t *kb = key;
-	const uint8_t *ke = kb + keylen;
-
 	if (kb == ke)
 		_iterate(rt->root, it);

@ -256,7 +237,7 @@ void radix_tree_iterate(struct radix_tree *rt, const void *key, size_t keylen,

 		if (n) {
 			if (n->has_value)
-				it->visit(it, NULL, 0, n->value);
+				it->visit(it, NULL, NULL, n->value);
 			_iterate(n->center, it);
 		}
 	}
@ -267,32 +248,8 @@ bool radix_tree_is_well_formed(struct radix_tree *rt)
 	return true;
 }

-static void _dump(FILE *out, struct node *n, unsigned indent)
-{
-	unsigned i;
-
-	if (!n)
-		return;
-
-	_dump(out, n->left, indent + 1);
-
-	for (i = 0; i < 2 * indent; i++)
-		fprintf(out, " ");
-
-	if (n->has_value) {
-		fprintf(out, "value: %llu\n", n->value.n);
-	} else {
-		fprintf(out, "key: '%c' [0x%02x] %u\n",
-			isprint(n->key) ? n->key : ' ', n->key, indent);
-	}
-
-	_dump(out, n->center, indent + 1);
-	_dump(out, n->right, indent + 1);
-}
-
 void radix_tree_dump(struct radix_tree *rt, FILE *out)
 {
-	_dump(out, rt->root, 0);
 }

 //----------------------------------------------------------------
--- a/base/data-struct/radix-tree.c
+++ b/base/data-struct/radix-tree.c
@ -19,45 +19,3 @@
 #endif

 //----------------------------------------------------------------
-
-struct visitor {
-	struct radix_tree_iterator it;
-	unsigned pos, nr_entries;
-	union radix_value *values;
-};
-
-static bool _visitor(struct radix_tree_iterator *it,
-		     const void *key, size_t keylen,
-		     union radix_value v)
-{
-	struct visitor *vt = container_of(it, struct visitor, it);
-
-	if (vt->pos >= vt->nr_entries)
-		return false;
-
-	vt->values[vt->pos++] = v;
-
-	return true;
-}
-
-bool radix_tree_values(struct radix_tree *rt, const void *key, size_t keylen,
-		       union radix_value **values, unsigned *nr_values)
-{
-	struct visitor vt = {
-		.it.visit = _visitor,
-		.nr_entries = rt->nr_entries,
-		.values = calloc(rt->nr_entries + 1, sizeof(union radix_value)),
-	};
-
-	if (vt.values) {
-		// build set of all values in current radix tree
-		radix_tree_iterate(rt, key, keylen, &vt.it);
-		*nr_values = vt.pos;
-		*values = vt.values;
-		return true;
-	}
-
-	return false;
-}
-
-//----------------------------------------------------------------
--- a/base/data-struct/radix-tree.h
+++ b/base/data-struct/radix-tree.h
@ -33,51 +33,32 @@ struct radix_tree *radix_tree_create(radix_value_dtr dtr, void *dtr_context);
 void radix_tree_destroy(struct radix_tree *rt);

 unsigned radix_tree_size(struct radix_tree *rt);
-bool radix_tree_insert(struct radix_tree *rt, const void *key, size_t keylen, union radix_value v);
-bool radix_tree_remove(struct radix_tree *rt, const void *key, size_t keylen);
+bool radix_tree_insert(struct radix_tree *rt, uint8_t *kb, uint8_t *ke, union radix_value v);
+bool radix_tree_remove(struct radix_tree *rt, uint8_t *kb, uint8_t *ke);

 // Returns the number of values removed
-unsigned radix_tree_remove_prefix(struct radix_tree *rt, const void *prefix, size_t prefix_len);
+unsigned radix_tree_remove_prefix(struct radix_tree *rt, uint8_t *prefix_b, uint8_t *prefix_e);

-bool radix_tree_lookup(struct radix_tree *rt, const void *key, size_t keylen,
-		       union radix_value *result);
+bool radix_tree_lookup(struct radix_tree *rt,
+		       uint8_t *kb, uint8_t *ke, union radix_value *result);

 // The radix tree stores entries in lexicographical order.  Which means
 // we can iterate entries, in order.  Or iterate entries with a particular
 // prefix.
 struct radix_tree_iterator {
-	// Returns false if the iteration should end.
+        // Returns false if the iteration should end.
 	bool (*visit)(struct radix_tree_iterator *it,
-		      const void *key, size_t keylen, union radix_value v);
+                      uint8_t *kb, uint8_t *ke, union radix_value v);
 };

-void radix_tree_iterate(struct radix_tree *rt, const void *key, size_t keylen,
-			struct radix_tree_iterator *it);
-
-// Alternative traversing radix_tree.
-// Builds whole set all radix_tree  nr_values values.
-// After use, free(values).
-bool radix_tree_values(struct radix_tree *rt, const void *key, size_t keylen,
-		       union radix_value **values, unsigned *nr_values);
+void radix_tree_iterate(struct radix_tree *rt, uint8_t *kb, uint8_t *ke,
+                        struct radix_tree_iterator *it);

 // Checks that some constraints on the shape of the tree are
 // being held.  For debug only.
 bool radix_tree_is_well_formed(struct radix_tree *rt);
 void radix_tree_dump(struct radix_tree *rt, FILE *out);

-// Shortcut for ptr value return
-// Note: if value would be NULL, it's same result for not/found case.
-static inline void *radix_tree_lookup_ptr(struct radix_tree *rt, const void *key, size_t keylen)
-{
-	union radix_value v;
-	return radix_tree_lookup(rt, key, keylen, &v) ? v.ptr : NULL;
-}
-
-static inline bool radix_tree_insert_ptr(struct radix_tree *rt, const void *key, size_t keylen, void *ptr)
-{
-	union radix_value v = { .ptr = ptr };
-	return radix_tree_insert(rt, key, keylen, v);
-}
 //----------------------------------------------------------------

 #endif
--- a/conf/Makefile.in
+++ b/conf/Makefile.in
@ -49,7 +49,7 @@ install_localconf: $(CONFLOCAL)
 	fi

 install_profiles: $(PROFILES)
-	$(SHOW) "    [INSTALL] $<"
+	@echo "    [INSTALL] $<"
 	$(Q) $(INSTALL_DIR) $(profiledir)
 	$(Q) $(INSTALL_DATA) $(PROFILES) $(profiledir)/

--- a/conf/example.conf.in
+++ b/conf/example.conf.in
@ -122,11 +122,11 @@ devices {
 	# Configuration option devices/use_devicesfile.
 	# Enable or disable the use of a devices file.
 	# When enabled, lvm will only use devices that
-	# are listed in the devices file. A devices file will
+	# are lised in the devices file. A devices file will
 	# be used, regardless of this setting, when the --devicesfile
 	# option is set to a specific file name.
 	# This configuration option has an automatic default value.
-	# use_devicesfile = @DEFAULT_USE_DEVICES_FILE@
+	# use_devicesfile = 0

 	# Configuration option devices/devicesfile.
 	# The name of the system devices file, listing devices that LVM should use.
@ -135,16 +135,6 @@ devices {
 	# This configuration option has an automatic default value.
 	# devicesfile = "system.devices"

-	# Configuration option devices/devicesfile_backup_limit.
-	# The max number of backup files to keep in /etc/lvm/devices/backup.
-	# LVM creates a backup of the devices file each time a new
-	# version is created, or each time a modification is detected.
-	# When the max number of backups is reached, the oldest are
-	# removed to remain at the limit. Set to 0 to disable backups.
-	# Only the system devices file is backed up.
-	# This configuration option has an automatic default value.
-	# devicesfile_backup_limit = 50
-
 	# Configuration option devices/search_for_devnames.
 	# Look outside of the devices file for missing devname entries.
 	# A devname entry is used for a device that does not have a stable
@ -159,27 +149,7 @@ devices {
 	# at other devices, but only those that are likely to have the PV.
 	# If "all", lvm will look at all devices on the system.
 	# This configuration option has an automatic default value.
-	# search_for_devnames = "all"
-
-	# Configuration option devices/device_ids_refresh.
-	# Find PVs on new devices and update the device IDs in the devices file.
-	# If PVs are restored or moved to a new system with new devices, but
-	# an old system.devices remains with old device IDs, then search for
-	# the PVIDs on new devices and update the device IDs in system.devices.
-	# The original device IDs must also not be found on the new system.
-	# See device_ids_refresh_check for conditions that trigger the refresh.
-	# This configuration option has an automatic default value.
-	# device_ids_refresh = 1
-
-	# Configuration option devices/device_ids_refresh_checks.
-	# Conditions that trigger device_ids_refresh to locate PVIDs on new devices.
-	# product_uuid: refresh if /sys/devices/virtual/dmi/id/product_uuid does not
-	# match the value saved in system.devices.
-	# hostname: refresh if hostname does not match the value saved in system.devices.
-	# (hostname is used if product_uuid is not available.)
-	# Remove values from this list to prevent lvm from using them.
-	# This configuration option has an automatic default value.
-	# device_ids_refresh_checks = [ "product_uuid", "hostname" ]
+	# search_for_devnames = "auto"

 	# Configuration option devices/filter.
 	# Limit the block devices that are used by LVM commands.
@ -241,12 +211,17 @@ devices {
 	# sysfs_scan = 1

 	# Configuration option devices/scan_lvs.
-	# Allow LVM LVs to be used as PVs. When enabled, LVM commands will
-	# scan active LVs to look for other PVs. Caution is required to
-	# avoid using PVs that belong to guest images stored on LVs.
-	# When enabled, the LVs scanned should be restricted using the
-	# devices file or the filter. This option does not enable autoactivation
-	# of layered VGs, which requires editing LVM udev rules (see LVM_PVSCAN_ON_LVS.)
+	# Scan LVM LVs for layered PVs, allowing LVs to be used as PVs.
+	# When 1, LVM will detect PVs layered on LVs, and caution must be
+	# taken to avoid a host accessing a layered VG that may not belong
+	# to it, e.g. from a guest image. This generally requires excluding
+	# the LVs with device filters. Also, when this setting is enabled,
+	# every LVM command will scan every active LV on the system (unless
+	# filtered), which can cause performance problems on systems with
+	# many active LVs. When this setting is 0, LVM will not detect or
+	# use PVs that exist on LVs, and will not allow a PV to be created on
+	# an LV. The LVs are ignored using a built in device filter that
+	# identifies and excludes LVs.
 	# This configuration option has an automatic default value.
 	# scan_lvs = 0

@ -562,7 +537,7 @@ allocation {

 	# Configuration option allocation/cache_pool_max_chunks.
 	# The maximum number of chunks in a cache pool.
-	# For cache target v1.9 the recommended maximum is 1000000 chunks.
+	# For cache target v1.9 the recommended maximumm is 1000000 chunks.
 	# Using cache pool with more chunks may degrade cache performance.
 	# This configuration option does not have a default value defined.

@ -646,9 +621,17 @@ allocation {
 	# This configuration option has an automatic default value.
 	# vdo_use_deduplication = 1

+	# Configuration option allocation/vdo_use_metadata_hints.
+	# Enables or disables whether VDO volume should tag its latency-critical
+	# writes with the REQ_SYNC flag. Some device mapper targets such as dm-raid5
+	# process writes with this flag at a higher priority.
+	# Default is enabled.
+	# This configuration option has an automatic default value.
+	# vdo_use_metadata_hints = 1
+
 	# Configuration option allocation/vdo_minimum_io_size.
 	# The minimum IO size for VDO volume to accept, in bytes.
-	# Valid values are 512 or 4096. The recommended value is 4096.
+	# Valid values are 512 or 4096. The recommended and default value is 4096.
 	# This configuration option has an automatic default value.
 	# vdo_minimum_io_size = 4096

@ -668,6 +651,11 @@ allocation {
 	# This configuration option has an automatic default value.
 	# vdo_block_map_period = 16380

+	# Configuration option allocation/vdo_check_point_frequency.
+	# The default check point frequency for VDO volume.
+	# This configuration option has an automatic default value.
+	# vdo_check_point_frequency = 0
+
 	# Configuration option allocation/vdo_use_sparse_index.
 	# Enables sparse indexing for VDO volume.
 	# This configuration option has an automatic default value.
@ -696,7 +684,7 @@ allocation {
 	# Configuration option allocation/vdo_bio_threads.
 	# Specifies the number of threads to use for submitting I/O
 	# operations to the storage device of VDO volume.
-	# The value must be in range [1..100].
+	# The value must be in range [1..100]
 	# Each additional thread after the first will use an additional 18MiB of RAM,
 	# plus 1.12 MiB of RAM per megabyte of configured read cache size.
 	# This configuration option has an automatic default value.
@ -710,7 +698,7 @@ allocation {

 	# Configuration option allocation/vdo_cpu_threads.
 	# Specifies the number of threads to use for CPU-intensive work such as
-	# hashing or compression for VDO volume. The value must be in range [1..100].
+	# hashing or compression for VDO volume. The value must be in range [1..100]
 	# This configuration option has an automatic default value.
 	# vdo_cpu_threads = 2

@ -728,7 +716,7 @@ allocation {
 	# processing based on the hash value computed from the block data.
 	# A logical thread count of 9 or more will require explicitly specifying
 	# a sufficiently large block map cache size, as well.
-	# The value must be in range [0..60].
+	# The value must be in range [0..100].
 	# vdo_hash_zone_threads, vdo_logical_threads and vdo_physical_threads must be
 	# either all zero or all non-zero.
 	# This configuration option has an automatic default value.
@ -744,6 +732,19 @@ allocation {
 	# This configuration option has an automatic default value.
 	# vdo_physical_threads = 1

+	# Configuration option allocation/vdo_write_policy.
+	# Specifies the write policy:
+	# auto  - VDO will check the storage device and determine whether it supports flushes.
+	#         If it does, VDO will run in async mode, otherwise it will run in sync mode.
+	# sync  - Writes are acknowledged only after data is stably written.
+	#         This policy is not supported if the underlying storage is not also synchronous.
+	# async - Writes are acknowledged after data has been cached for writing to stable storage.
+	#         Data which has not been flushed is not guaranteed to persist in this mode.
+	# async-unsafe - Writes are handled like 'async' but there is no guarantee of the atomicity async provides.
+	#         This mode should only be used for better performance when atomicity is not required.
+	# This configuration option has an automatic default value.
+	# vdo_write_policy = "auto"
+
 	# Configuration option allocation/vdo_max_discard.
 	# Specified the maximum size of discard bio accepted, in 4096 byte blocks.
 	# I/O requests to a VDO volume are normally split into 4096-byte blocks,
@ -757,7 +758,7 @@ allocation {
 	# vdo_max_discard = 1

 	# Configuration option allocation/vdo_pool_header_size.
-	# Specified the empty header size in KiB at the front and end of vdo pool device.
+	# Specified the emptry header size in KiB at the front and end of vdo pool device.
 	# This configuration option has an automatic default value.
 	# vdo_pool_header_size = 512
 }
@ -781,9 +782,6 @@ log {
 	# to define fields to display and sort fields for the log report.
 	# You can also use log/command_log_selection to define selection
 	# criteria used each time the log is reported.
-	# Note that if report/output_format (or --reportformat command line
-	# option) is set to json or json_std, then log/report_command_log=1
-	# is default.
 	# This configuration option has an automatic default value.
 	# report_command_log = 0

@ -813,9 +811,8 @@ log {
 	# define selection criteria for log report on command line directly
 	# using <lvm command> --configreport log -S <selection criteria>
 	# which has precedence over log/command_log_selection setting.
-	# To make all the command log lines visible, use "all" value
-	# for the command log selection. For more information about selection
-	# criteria in general, see lvmreport(7) man page.
+	# For more information about selection criteria in general, see
+	# lvm(8) man page.
 	# This configuration option has an automatic default value.
 	# command_log_selection = "!(log_type=status && message=success)"

@ -940,7 +937,7 @@ backup {
 	# archive = 1

 	# Configuration option backup/archive_dir.
-	# Location of the metadata archive files.
+	# Location of the metdata archive files.
 	# Remember to back up this directory regularly!
 	# This configuration option has an automatic default value.
 	# archive_dir = "@DEFAULT_SYS_DIR@/@DEFAULT_ARCHIVE_SUBDIR@"
@ -1016,7 +1013,7 @@ global {
 	# Location of proc filesystem.
 	# This configuration option is advanced.
 	# This configuration option has an automatic default value.
-	# proc = "@DEFAULT_PROC_DIR@"
+	# proc = "/proc"

 	# Configuration option global/etc.
 	# Location of /etc system configuration directory.
@ -1160,7 +1157,7 @@ global {
 	# services (via the lvm2-activation-generator), but the autoactivation
 	# services and generator have been removed.
 	# This configuration option has an automatic default value.
-	# event_activation = @DEFAULT_EVENT_ACTIVATION@
+	# event_activation = 1

 	# Configuration option global/use_aio.
 	# Use async I/O when reading and writing devices.
@ -1192,16 +1189,6 @@ global {
 	# This configuration option has an automatic default value.
 	# sanlock_lv_extend = 256

-	# Configuration option global/sanlock_align_size.
-	# The sanlock lease size in MiB to use on disks with a 4K sector size.
-	# Possible values are 1,2,4,8.  The default is 8, which supports up to
-	# 2000 hosts (and max host_id 2000.)  Smaller values support smaller
-	# numbers of max hosts (and max host_ids): 250, 500, 1000, 2000 for
-	# lease sizes 1,2,4,8.  Disks with 512 byte sectors always use 1MiB
-	# leases and support 2000 hosts, and are not affected by this setting.
-	# This configuration option has an automatic default value.
-	# sanlock_align_size = 8
-
 	# Configuration option global/lvmlockctl_kill_command.
 	# The command that lvmlockctl --kill should use to force LVs offline.
 	# The lvmlockctl --kill command is run when a shared VG has lost
@ -1215,7 +1202,7 @@ global {

 	# Configuration option global/thin_check_executable.
 	# The full path to the thin_check command.
-	# LVM uses this command to check that a thin pool metadata device is in a
+	# LVM uses this command to check that a thin metadata device is in a
 	# usable state. When a thin pool is activated and after it is
 	# deactivated, this command is run. Activation will only proceed if
 	# the command has an exit status of 0. Set to "" to skip this check.
@ -1239,14 +1226,6 @@ global {
 	# This configuration option has an automatic default value.
 	# thin_repair_executable = "@THIN_REPAIR_CMD@"

-	# Configuration option global/thin_restore_executable.
-	# The full path to the thin_restore command.
-	# LVM uses this command to restore generated data for a thin pool metadata device.
-	# Also see thin_restore_options.
-	# (See package device-mapper-persistent-data or thin-provisioning-tools)
-	# This configuration option has an automatic default value.
-	# thin_restore_executable = "@THIN_RESTORE_CMD@"
-
 	# Configuration option global/thin_check_options.
 	# List of options passed to the thin_check command.
 	# With thin_check version 2.1 or newer you can add the option
@ -1261,11 +1240,6 @@ global {
 	# This configuration option has an automatic default value.
 	# thin_repair_options = [ "" ]

-	# Configuration option global/thin_restore_options.
-	# List of options passed to the thin_restore command.
-	# This configuration option has an automatic default value.
-	# thin_restore_options = [ "" ]
-
 	# Configuration option global/thin_disabled_features.
 	# Features to not use in the thin driver.
 	# This can be helpful for testing, or to avoid using a feature that is
@ -1314,14 +1288,6 @@ global {
 	# This configuration option has an automatic default value.
 	# cache_repair_executable = "@CACHE_REPAIR_CMD@"

-	# Configuration option global/cache_restore_executable.
-	# The full path to the cache_restore command.
-	# LVM uses this command to restore generated data for a cache metadata device.
-	# Also see cache_restore_options.
-	# (See package device-mapper-persistent-data or thin-provisioning-tools)
-	# This configuration option has an automatic default value.
-	# cache_restore_executable = "@CACHE_RESTORE_CMD@"
-
 	# Configuration option global/cache_check_options.
 	# List of options passed to the cache_check command.
 	# With cache_check version 5.0 or newer you should include the option
@ -1334,11 +1300,6 @@ global {
 	# This configuration option has an automatic default value.
 	# cache_repair_options = [ "" ]

-	# Configuration option global/cache_restore_options.
-	# List of options passed to the cache_restore command.
-	# This configuration option has an automatic default value.
-	# cache_restore_options = [ "" ]
-
 	# Configuration option global/vdo_format_executable.
 	# The full path to the vdoformat command.
 	# LVM uses this command to initial data volume for VDO type logical volume
@ -1353,10 +1314,10 @@ global {
 	# Configuration option global/vdo_disabled_features.
 	# Features to not use in the vdo driver.
 	# This can be helpful for testing, or to avoid using a feature that is
-	# causing problems. Features include: online_rename, version4
+	# causing problems. Features include: online_rename
 	#
 	# Example
-	# vdo_disabled_features = [ "online_rename", "version4" ]
+	# vdo_disabled_features = [ "online_rename" ]
 	#
 	# This configuration option does not have a default value defined.

@ -1386,9 +1347,8 @@ global {
 	#     Use an LVM-specific derivation of the local machine-id as the
 	#     system ID. See 'man machine-id'.
 	#   machineid
-	#     Use the contents of the machine-id file to set the system ID.
-	#     (appmachineid is recommended to avoid exposing the confidential
-	#     machine-id.)
+	#     Use the contents of the machine-id file to set the system ID
+	#     (appmachineid is recommended.)
 	#   file
 	#     Use the contents of another file (system_id_file) to set the
 	#     system ID.
@ -1504,15 +1464,13 @@ activation {

 	# Configuration option activation/reserved_stack.
 	# Stack size in KiB to reserve for use while devices are suspended.
-	# Insufficient reserve risks I/O deadlock during device suspension.
-	# Value 0 disables memory locking.
+	# Insufficent reserve risks I/O deadlock during device suspension.
 	# This configuration option has an automatic default value.
 	# reserved_stack = 64

 	# Configuration option activation/reserved_memory.
 	# Memory size in KiB to reserve for use while devices are suspended.
-	# Insufficient reserve risks I/O deadlock during device suspension.
-	# Value 0 disables memory locking.
+	# Insufficent reserve risks I/O deadlock during device suspension.
 	# This configuration option has an automatic default value.
 	# reserved_memory = 8192

@ -1647,7 +1605,7 @@ activation {
 	# This includes LVs that have the following segment types:
 	# raid1, raid4, raid5*, and raid6*.
 	# If a device in the LV fails, the policy determines the steps
-	# performed by dmeventd automatically, and the steps performed by the
+	# performed by dmeventd automatically, and the steps perfomed by the
 	# manual command lvconvert --repair --use-policies.
 	# Automatic handling requires dmeventd to be monitoring the LV.
 	#
@ -1671,7 +1629,7 @@ activation {
 	# (copies) and a mirror log. A disk log ensures that a mirror LV does
 	# not need to be re-synced (all copies made the same) every time a
 	# machine reboots or crashes. If a device in the LV fails, this policy
-	# determines the steps performed by dmeventd automatically, and the steps
+	# determines the steps perfomed by dmeventd automatically, and the steps
 	# performed by the manual command lvconvert --repair --use-policies.
 	# Automatic handling requires dmeventd to be monitoring the LV.
 	#
@ -1833,7 +1791,7 @@ activation {
 	# Configuration option activation/polling_interval.
 	# Check pvmove or lvconvert progress at this interval (seconds).
 	# When pvmove or lvconvert must wait for the kernel to finish
-	# synchronizing or merging data, they check and report progress at
+	# synchronising or merging data, they check and report progress at
 	# intervals of this number of seconds. If this is set to 0 and there
 	# is only one thing to wait for, there are no progress reports, but
 	# the process is awoken immediately once the operation is complete.
@ -1861,7 +1819,7 @@ activation {
 	#     uses are present. Other PVs in the Volume Group may be missing.
 	#   degraded
 	#     Like complete, but additionally RAID LVs of segment type raid1,
-	#     raid4, raid5, raid6 and raid10 will be activated if there is no
+	#     raid4, raid5, radid6 and raid10 will be activated if there is no
 	#     data loss, i.e. they have sufficient redundancy to present the
 	#     entire addressable range of the Logical Volume.
 	#   partial
@ -1978,14 +1936,15 @@ activation {

 # Configuration section report.
 # LVM report command output formatting.
-report {
+# This configuration section has an automatic default value.
+# report {

 	# Configuration option report/output_format.
 	# Format of LVM command's report output.
 	# If there is more than one report per command, then the format
 	# is applied for all reports. You can also change output format
 	# directly on command line using --reportformat option which
-	# has precedence over report/output_format setting.
+	# has precedence over log/output_format setting.
 	# Accepted values:
 	#   basic
 	#     Original format with columns and rows. If there is more than
@ -1993,13 +1952,6 @@ report {
 	#     name for identification.
 	#   json
 	#     JSON format.
-	#   json_std
-	#     JSON format that is more compliant with JSON standard.
-	#     Compared to original "json" format:
-	#       - it does not use double quotes around numeric values,
-	#       - it uses 'null' for undefined numeric values,
-	#       - it prints string list as proper JSON array of strings instead of a single string.
-	# Note that if json or json_std output format is used, then log/command_log_report=1 is default.
 	# This configuration option has an automatic default value.
 	# output_format = "basic"

@ -2039,11 +1991,7 @@ report {
 	# buffered = 1

 	# Configuration option report/headings.
-	# Format of LVM command's report output headings.
-	# Accepted values:
-	#   0 no headings,
-	#   1 headings with column abbreviations,
-	#   2 headings with full column names.
+	# Show headings for columns on report.
 	# This configuration option has an automatic default value.
 	# headings = 1

@ -2122,7 +2070,7 @@ report {
 	#   %F
 	#     Equivalent to %Y-%m-%d (the ISO 8601 date format).
 	#   %G
-	#     The ISO 8601 week-based year with century as a decimal number.
+	#     The ISO 8601 week-based year with century as adecimal number.
 	#     The 4-digit year corresponding to the ISO week number (see %V).
 	#     This has the same format and value as %Y, except that if the
 	#     ISO week number belongs to the previous or next year, that year
@ -2393,7 +2341,7 @@ report {
 	# This is displayed when the device for a PV is not known.
 	# This configuration option has an automatic default value.
 	# two_word_unknown_device = 0
-}
+# }

 # Configuration section dmeventd.
 # Settings for the LVM event daemon.
--- a/conf/lvmlocal.conf.in
+++ b/conf/lvmlocal.conf.in
@ -49,10 +49,9 @@ local {
 	# This configuration option does not have a default value defined.

 	# Configuration option local/host_id.
-	# The sanlock host_id used by lvmlockd. This must be unique among all the hosts
-	# using shared VGs with sanlock. Accepted values are 1-2000, except when sanlock_align_size
-	# is configured to 1, 2 or 4, which correspond to max host_id values of 250, 500, or 1000.
-	# Applicable only if LVM is compiled with support for lvmlockd+sanlock.
+	# The lvmlockd sanlock host_id.
+	# This must be unique among all hosts, and must be between 1 and 2000.
+	# Applicable only if LVM is compiled with lockd support
 	# This configuration option has an automatic default value.
 	# host_id = 0
 }
--- a/conf/vdo-small.profile
+++ b/conf/vdo-small.profile
@ -4,9 +4,11 @@
 allocation {
 	vdo_use_compression=1
 	vdo_use_deduplication=1
+	vdo_use_metadata_hints=1
 	vdo_minimum_io_size=4096
 	vdo_block_map_cache_size_mb=128
 	vdo_block_map_period=16380
+	vdo_check_point_frequency=0
 	vdo_use_sparse_index=0
 	vdo_index_memory_size_mb=256
 	vdo_slab_size_mb=2048
@ -17,5 +19,6 @@ allocation {
 	vdo_hash_zone_threads=1
 	vdo_logical_threads=1
 	vdo_physical_threads=1
+	vdo_write_policy="auto"
 	vdo_max_discard=1
 }
--- a/14279
+++ b/14279
--- a/configure.ac
+++ b/configure.ac
--- a/coverity/coverity_model.c
+++ b/coverity/coverity_model.c
@ -21,7 +21,7 @@
 * compile (using outdir 'cov'):
 * cov-build --dir=cov make CC=gcc
 *
- * analyze (aggressively, using 'cov')
+ * analyze (agressively, using 'cov')
 * cov-analyze --dir cov --wait-for-license --hfa --concurrency --enable-fnptr --enable-constraint-fpp --security --all --aggressiveness-level=high --field-offset-escape --user-model-file=coverity/coverity_model.xml
 *
 * generate html output (to 'html' from 'cov'):
@ -70,7 +70,7 @@ void *memccpy(void *dest, const void *src, int c, size_t n)
 }

 /*
- * 2 lines below needs to be placed in coverity/config/user_nodefs.h
+ * 2 lines bellow needs to be placed in coverity/config/user_nodefs.h
 * Not sure about any other way.
 * Without them, coverity shows warning since x86 system header files
 * are using inline assembly to reset fdset
--- a/daemons/cmirrord/Makefile.in
+++ b/daemons/cmirrord/Makefile.in
@ -32,12 +32,12 @@ CFLAGS += $(CPG_CFLAGS) $(EXTRA_EXEC_CFLAGS)
 LDFLAGS += $(EXTRA_EXEC_LDFLAGS) $(ELDFLAGS)

 cmirrord: $(OBJECTS)
-	$(SHOW) "    [CC] $@"
+	@echo "    [CC] $@"
 	$(Q) $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $(OBJECTS) \
 		$(LMLIBS) -L$(top_builddir)/libdm -ldevmapper $(LIBS)

 install_cluster: $(TARGETS)
-	$(SHOW) "    [INSTALL] $<"
+	@echo "    [INSTALL] $<"
 	$(Q) $(INSTALL_PROGRAM) -D $< $(usrsbindir)/$(<F)

 install: install_cluster
--- a/daemons/cmirrord/clogd.c
+++ b/daemons/cmirrord/clogd.c
@ -43,14 +43,14 @@ static void usage (FILE *dest)
 int main(int argc, char *argv[])
 {
 	int foreground_mode = 0;
-	static const struct option _long_options[] = {
+	struct option longopts[] = {
 		{ "foreground", no_argument, NULL, 'f' },
 		{ "help"      , no_argument, NULL, 'h' },
 		{ 0, 0, 0, 0 }
 	};
 	int opt;

-	while ((opt = getopt_long (argc, argv, "fh", _long_options, NULL)) != -1) {
+	while ((opt = getopt_long (argc, argv, "fh", longopts, NULL)) != -1) {
 		switch (opt) {
 		case 'f':
 			foreground_mode = 1;
--- a/daemons/cmirrord/cluster.c
+++ b/daemons/cmirrord/cluster.c
@ -279,7 +279,7 @@ static int handle_cluster_request(struct clog_cpg *entry __attribute__((unused))
 	 * With resumes, we only handle our own.
 	 * Resume is a special case that requires
 	 * local action (to set up CPG), followed by
-	 * a cluster action to coordinate reading
+	 * a cluster action to co-ordinate reading
 	 * the disk and checkpointing
 	 */
 	if (tmp->u_rq.request_type == DM_ULOG_RESUME) {
@ -1091,7 +1091,6 @@ static void cpg_message_callback(cpg_handle_t handle, const struct cpg_name *gna
 	    (rq->u_rq.request_type != DM_ULOG_RESUME) &&
 	    (rq->u_rq.request_type != DM_ULOG_CLEAR_REGION) &&
 	    (rq->u_rq.request_type != DM_ULOG_CHECKPOINT_READY)) {
-		/* coverity[suspicious_sizeof] allocation is using varargs data @end */
 		tmp_rq = malloc(DM_ULOG_REQUEST_SIZE);
 		if (!tmp_rq) {
 			/*
@ -1341,7 +1340,6 @@ static void cpg_join_callback(struct clog_cpg *match,
 		goto out;
 	}

-	/* coverity[suspicious_sizeof] allocation is using varargs data @end */
 	rq = malloc(DM_ULOG_REQUEST_SIZE);
 	if (!rq) {
 		LOG_ERROR("cpg_config_callback: "
@ -1634,7 +1632,7 @@ int create_cluster_cpg(char *uuid, uint64_t luid)

 	size = ((strlen(uuid) + 1) > CPG_MAX_NAME_LENGTH) ?
 		CPG_MAX_NAME_LENGTH : (strlen(uuid) + 1);
-	dm_strncpy(new->name.value, uuid, size);
+	(void) dm_strncpy(new->name.value, uuid, size);
 	new->name.length = (uint32_t)size;
 	new->luid = luid;

--- a/daemons/cmirrord/functions.c
+++ b/daemons/cmirrord/functions.c
@ -67,7 +67,7 @@ struct log_c {
 	uint32_t recoverer;
 	uint64_t recovering_region; /* -1 means not recovering */
 	uint64_t skip_bit_warning; /* used to warn if region skipped */
-	unsigned sync_search;
+	int sync_search;

 	int resume_override;

@ -220,7 +220,7 @@ static int rw_log(struct log_c *lc, int do_write)
 	if (r < 0)
 		LOG_ERROR("[%s] rw_log:  read failure: %s",
 			  SHORT_UUID(lc->uuid), strerror(errno));
-	if ((unsigned) r != lc->disk_size)
+	if (r != lc->disk_size)
 		return -EIO; /* Failed disk read */
 	return 0;
 }
@ -254,7 +254,7 @@ static int read_log(struct log_c *lc)
 	bitset_size = lc->region_count / 8;
 	bitset_size += (lc->region_count % 8) ? 1 : 0;

-	/* 'lc->clean_bits + 1' because dm_bitset_t leads with a uint32_t */
+	/* 'lc->clean_bits + 1' becasue dm_bitset_t leads with a uint32_t */
 	memcpy(lc->clean_bits + 1, (char *)lc->disk_buffer + 1024, bitset_size);

 	return 0;
@ -281,7 +281,7 @@ static int write_log(struct log_c *lc)
 	bitset_size = lc->region_count / 8;
 	bitset_size += (lc->region_count % 8) ? 1 : 0;

-	/* 'lc->clean_bits + 1' because dm_bitset_t leads with a uint32_t */
+	/* 'lc->clean_bits + 1' becasue dm_bitset_t leads with a uint32_t */
 	memcpy((char *)lc->disk_buffer + 1024, lc->clean_bits + 1, bitset_size);

 	if (rw_log(lc, 1)) {
@ -292,13 +292,13 @@ static int write_log(struct log_c *lc)
 }

 /* FIXME Rewrite this function taking advantage of the udev changes (where in use) to improve its efficiency! */
-static int find_disk_path(char *major_minor_str, char *path_rtn, size_t sz, int *unlink_path __attribute__((unused)))
+static int find_disk_path(char *major_minor_str, char *path_rtn, int *unlink_path __attribute__((unused)))
 {
 	int r;
 	DIR *dp;
 	struct dirent *dep;
 	struct stat statbuf;
-	unsigned major, minor;
+	int major, minor;

 	if (!strstr(major_minor_str, ":")) {
 		r = stat(major_minor_str, &statbuf);
@ -306,7 +306,7 @@ static int find_disk_path(char *major_minor_str, char *path_rtn, size_t sz, int
 			return -errno;
 		if (!S_ISBLK(statbuf.st_mode))
 			return -EINVAL;
-		dm_strncpy(path_rtn, major_minor_str, sz);
+		sprintf(path_rtn, "%s", major_minor_str);
 		return 0;
 	}

@ -329,7 +329,7 @@ static int find_disk_path(char *major_minor_str, char *path_rtn, size_t sz, int
 		 * wanted.
 		 */

-		snprintf(path_rtn, sz, "/dev/mapper/%s", dep->d_name);
+		sprintf(path_rtn, "/dev/mapper/%s", dep->d_name);
 		if (stat(path_rtn, &statbuf) < 0) {
 			LOG_DBG("Unable to stat %s", path_rtn);
 			continue;
@ -394,7 +394,7 @@ static int _clog_ctr(char *uuid, uint64_t luid,
 			goto fail;
 		}

-		r = find_disk_path(argv[0], disk_path, sizeof(disk_path), &unlink_path);
+		r = find_disk_path(argv[0], disk_path, &unlink_path);
 		if (r) {
 			LOG_ERROR("Unable to find path to device %s", argv[0]);
 			goto fail;
@ -452,7 +452,7 @@ static int _clog_ctr(char *uuid, uint64_t luid,
 	lc->skip_bit_warning = region_count;
 	lc->disk_fd = -1;
 	lc->log_dev_failed = 0;
-	if (!_dm_strncpy(lc->uuid, uuid, DM_UUID_LEN)) {
+	if (!dm_strncpy(lc->uuid, uuid, DM_UUID_LEN)) {
 		LOG_ERROR("Cannot use too long UUID %s.", uuid);
 		r = -EINVAL;
 		goto fail;
@ -927,7 +927,7 @@ int local_resume(struct dm_ulog_request *rq)
 *
 * Since this value doesn't change, the kernel
 * should not need to talk to server to get this
- * The function is here for completeness
+ * The function is here for completness
 *
 * Returns: 0 on success, -EXXX on failure
 */
@ -1018,7 +1018,7 @@ static int clog_in_sync(struct dm_ulog_request *rq)
 	 * happen for reads is that additional read attempts may be
 	 * taken.
 	 *
-	 * Further investigation may be required to determine if there are
+	 * Futher investigation may be required to determine if there are
 	 * similar possible outcomes when the mirror is in the process of
 	 * recovering.  In that case, lc->in_sync would not have been set
 	 * yet.
--- a/daemons/cmirrord/functions.h
+++ b/daemons/cmirrord/functions.h
@ -13,7 +13,6 @@
 #define _LVM_CLOG_FUNCTIONS_H

 #include "libdm/libdevmapper.h"
-#include "libdm/dm-tools/util.h"
 #include "libdm/misc/dm-log-userspace.h"
 #include "cluster.h"

--- a/daemons/cmirrord/local.c
+++ b/daemons/cmirrord/local.c
@ -266,7 +266,7 @@ static int do_local_work(void *data __attribute__((unused)))
 					  RQ_TYPE(u_rq->request_type));
 			break;
 		}
-		/* ELSE */ /* fall through */
+		/* ELSE, fall through */
 	case DM_ULOG_IS_CLEAN:
 	case DM_ULOG_FLUSH:
 	case DM_ULOG_MARK_REGION:
--- a/daemons/cmirrord/logging.c
+++ b/daemons/cmirrord/logging.c
@ -11,7 +11,7 @@
 */
 #include "logging.h"

-const char * const __rq_types_off_by_one[] = {
+const char *__rq_types_off_by_one[] = {
 	"DM_ULOG_CTR",
 	"DM_ULOG_DTR",
 	"DM_ULOG_PRESUSPEND",
--- a/daemons/cmirrord/logging.h
+++ b/daemons/cmirrord/logging.h
@ -20,7 +20,7 @@
 /* SHORT_UUID - print last 8 chars of a string */
 #define SHORT_UUID(x) (strlen(x) > 8) ? ((x) + (strlen(x) - 8)) : (x)

-extern const char * const __rq_types_off_by_one[];
+extern const char *__rq_types_off_by_one[];
 #define RQ_TYPE(x) __rq_types_off_by_one[(x) - 1]

 extern int log_tabbing;
--- a/daemons/dmeventd/Makefile.in
+++ b/daemons/dmeventd/Makefile.in
@ -70,13 +70,13 @@ plugins.device-mapper: $(LIB_SHARED)
 CFLAGS_dmeventd.o += $(EXTRA_EXEC_CFLAGS)

 dmeventd: $(LIB_SHARED) dmeventd.o
-	$(SHOW) "    [CC] $@"
+	@echo "    [CC] $@"
 	$(Q) $(CC) $(CFLAGS) $(LDFLAGS) $(EXTRA_EXEC_LDFLAGS) $(ELDFLAGS) dmeventd.o \
 		-o $@ $(DL_LIBS) $(DMEVENT_LIBS) $(LIBS)

 dmeventd.static: $(LIB_STATIC) dmeventd.o
-	$(SHOW) "    [CC] $@"
-	$(Q) $(CC) $(CFLAGS) $(LDFLAGS) $(STATIC_LDFLAGS) -static dmeventd.o \
+	@echo "    [CC] $@"
+	$(Q) $(CC) $(CFLAGS) $(LDFLAGS) -static dmeventd.o \
 		-o $@ $(DL_LIBS) $(DMEVENT_LIBS) $(LIBS) $(STATIC_LIBS)

 ifeq ("@PKGCONFIG@", "yes")
@ -84,27 +84,27 @@ ifeq ("@PKGCONFIG@", "yes")
 endif

 install_include: $(srcdir)/libdevmapper-event.h
-	$(SHOW) "    [INSTALL] $(<F)"
+	@echo "    [INSTALL] $(<F)"
 	$(Q) $(INSTALL_DATA) -D $< $(includedir)/$(<F)

 install_pkgconfig: libdevmapper-event.pc
-	$(SHOW) "    [INSTALL] $<"
+	@echo "    [INSTALL] $<"
 	$(Q) $(INSTALL_DATA) -D $< $(pkgconfigdir)/devmapper-event.pc

 install_lib_dynamic: install_lib_shared

 install_lib_static: $(LIB_STATIC)
-	$(SHOW) "    [INSTALL] $<"
+	@echo "    [INSTALL] $<"
 	$(Q) $(INSTALL_DATA) -D $< $(usrlibdir)/$(<F)

 install_lib: $(INSTALL_LIB_TARGETS)

 install_dmeventd_dynamic: dmeventd
-	$(SHOW) "    [INSTALL] $<"
+	@echo "    [INSTALL] $<"
 	$(Q) $(INSTALL_PROGRAM) -D $< $(sbindir)/$(<F)

 install_dmeventd_static: dmeventd.static
-	$(SHOW) "    [INSTALL] $<"
+	@echo "    [INSTALL] $<"
 	$(Q) $(INSTALL_PROGRAM) -D $< $(staticdir)/$(<F)

 install_dmeventd: $(INSTALL_DMEVENTD_TARGETS)
--- a/daemons/dmeventd/dmeventd.c
+++ b/daemons/dmeventd/dmeventd.c
@ -23,12 +23,12 @@
 #include "libdm/misc/dm-logging.h"
 #include "base/memory/zalloc.h"

-#include "libdaemon/server/daemon-stray.h"
-
 #include <dlfcn.h>
 #include <pthread.h>
+#include <sys/file.h>
 #include <sys/stat.h>
 #include <sys/wait.h>
+#include <sys/time.h>
 #include <sys/resource.h>
 #include <signal.h>
 #include <arpa/inet.h>		/* for htonl, ntohl */
@ -92,10 +92,12 @@ static const size_t THREAD_STACK_SIZE = 300 * 1024;
 /* Default idle exit timeout 1 hour (in seconds) */
 static const time_t DMEVENTD_IDLE_EXIT_TIMEOUT = 60 * 60;

+static int _debug_level = 0;
+static int _use_syslog = 1;
 static int _systemd_activation = 0;
 static int _foreground = 0;
+static int _restart = 0;
 static time_t _idle_since = 0;
-static const char *_exit_on = DEFAULT_DMEVENTD_EXIT_ON_PATH;
 static char **_initial_registrations = 0;

 /* FIXME Make configurable at runtime */
@ -200,9 +202,9 @@ struct message_data {
 	char *dso_name;		/* Name of DSO. */
 	char *device_uuid;	/* Mapped device path. */
 	char *events_str;	/* Events string as fetched from message. */
-	unsigned events_field;	/* Events bitfield. */
-	uint32_t timeout_secs;
+	enum dm_event_mask events_field;	/* Events bitfield. */
 	char *timeout_str;
+	uint32_t timeout_secs;
 	struct dm_event_daemon_message *msg;	/* Pointer to message buffer. */
 };

@ -236,7 +238,7 @@ struct thread_status {
 	int status;		/* See DM_THREAD_{REGISTERING,RUNNING,DONE} */

 	int events;		/* bitfield for event filter. */
-	int current_events;	/* bitfield for occurred events. */
+	int current_events;	/* bitfield for occured events. */
 	struct dm_task *wait_task;
 	int pending;		/* Set when event filter change is pending */
 	time_t next_time;
@ -427,7 +429,7 @@ static struct thread_status *_alloc_thread_status(const struct message_data *dat
 	if (!(thread->device.name = strdup(data->device_uuid)))
 		goto_out;

-	/* runs ioctl and may register lvm2 plugin */
+	/* runs ioctl and may register lvm2 pluging */
 	thread->processing = 1;
 	thread->status = DM_THREAD_REGISTERING;

@ -520,7 +522,7 @@ static int _fetch_string(char **ptr, char **src, const int delimiter)
 			*p = delimiter;
 			*src = p;
 		}
-		(*src)++; /* Skip delimiter, next field */
+		(*src)++; /* Skip delmiter, next field */
 	} else if ((len = strlen(*src))) {
 		/* No delimiter, item ends with '\0' */
 		if (!(*ptr = strdup(*src))) {
@ -721,18 +723,12 @@ static int _get_status(struct message_data *message_data)
 static int _get_parameters(struct message_data *message_data) {
 	struct dm_event_daemon_message *msg = message_data->msg;
 	int size;
-	char idle_buf[32] = "";
-
-	if (_idle_since)
-		(void)dm_snprintf(idle_buf, sizeof(idle_buf), " idle=%lu", (long unsigned) (time(NULL) - _idle_since));

 	free(msg->data);
-	if ((size = dm_asprintf(&msg->data, "%s pid=%d daemon=%s exec_method=%s exit_on=\"%s\"%s",
+	if ((size = dm_asprintf(&msg->data, "%s pid=%d daemon=%s exec_method=%s",
 				message_data->id, getpid(),
 				_foreground ? "no" : "yes",
-				_systemd_activation ? "systemd" : "direct",
-				_exit_on,
-				idle_buf)) < 0) {
+				_systemd_activation ? "systemd" : "direct")) < 0) {
 		stack;
 		return -ENOMEM;
 	}
@ -991,7 +987,6 @@ static void _monitor_unregister(void *arg)
 	DEBUGLOG("Unregistering monitor for %s.", thread->device.name);
 	_unregister_for_timeout(thread);

-	/* coverity[missing_lock] no missing lock here */
 	if ((thread->status != DM_THREAD_REGISTERING) &&
 	    !_do_unregister_device(thread))
 		log_error("%s: %s unregister failed.", __func__,
@ -1002,8 +997,6 @@ static void _monitor_unregister(void *arg)
 	_lock_mutex();
 	thread->status = DM_THREAD_DONE; /* Last access to thread memory! */
 	_unlock_mutex();
-	if (_exit_now)  /* Exit is already in-progress, wake-up sleeping select() */
-		kill(getpid(), SIGINT);
 }

 /* Device monitoring thread. */
@ -1050,9 +1043,9 @@ static void *_monitor_thread(void *arg)
 			_unlock_mutex();

 			_do_process_event(thread);
+			thread->current_events = 0; /* Current events processed */

 			_lock_mutex();
-			thread->current_events = 0; /* Current events processed */
 			thread->processing = 0;

 			/*
@ -1168,36 +1161,6 @@ static int _unregister_for_event(struct message_data *message_data)
 	return ret;
 }

-static void _unregister_all_threads(void)
-{
-	struct thread_status *thread, *tmp;
-
-	_lock_mutex();
-
-	dm_list_iterate_items_safe(thread, tmp, &_thread_registry)
-		_update_events(thread, 0);
-
-	_unlock_mutex();
-}
-
-static void _wait_for_new_pid(void)
-{
-	unsigned long st_ino = 0;
-	struct stat st;
-	int i;
-
-	for (i = 0; i < 400000; ++i) {
-		if (lstat(DMEVENTD_PIDFILE, &st) == 0) {
-			if (!st_ino)
-				st_ino = st.st_ino;
-			else if (st_ino != st.st_ino)
-				break; /* different pidfile */
-		} else if (errno == ENOENT)
-			break; /* pidfile is removed */
-		usleep(100);
-	}
-}
-
 /*
 * Register for an event.
 *
@ -1441,8 +1404,7 @@ static int _open_fifo(const char *path)
 	} else if (!S_ISFIFO(st.st_mode) || st.st_uid ||
 		   (st.st_mode & (S_IEXEC | S_IRWXG | S_IRWXO))) {
 		log_warn("WARNING: %s has wrong attributes: Replacing.", path);
-		/* coverity[toctou]  don't care, path is going to be recreated */
-		if (unlink(path) && (errno != ENOENT)) {
+		if (unlink(path)) {
 			log_sys_error("unlink", path);
 			return -1;
 		}
@ -1450,7 +1412,6 @@ static int _open_fifo(const char *path)

 	/* Create fifo. */
 	(void) dm_prepare_selinux_context(path, S_IFIFO);
-	/* coverity[toctou]  revalidating things again */
 	if ((mkfifo(path, 0600) == -1) && errno != EEXIST) {
 		log_sys_error("mkfifo", path);
 		(void) dm_prepare_selinux_context(NULL, 0);
@ -1679,7 +1640,7 @@ static int _do_process_request(struct dm_event_daemon_message *msg)
 	} else
 		ret = _handle_request(msg, &message_data);

-	msg->cmd = (uint32_t)ret;
+	msg->cmd = ret;
 	if (!msg->data)
 		msg->size = dm_asprintf(&(msg->data), "%s %s", message_data.id, strerror(-ret));

@ -1716,9 +1677,9 @@ static void _process_request(struct dm_event_fifos *fifos)
 	free(msg.data);

 	if (cmd == DM_EVENT_CMD_DIE) {
-		_unregister_all_threads();
-		_exit_now = DM_SCHEDULED_EXIT;
-		log_info("dmeventd exiting for restart.");
+		if (unlink(DMEVENTD_PIDFILE))
+			log_sys_error("unlink", DMEVENTD_PIDFILE);
+		_exit(0);
 	}
 }

@ -1765,7 +1726,7 @@ static void _cleanup_unused_threads(void)
 		DEBUGLOG("Destroying Thr %x.", (int)thread->thread);

 		if (pthread_join(thread->thread, NULL))
-			log_sys_debug("pthread_join", "");
+			log_sys_error("pthread_join", "");

 		_free_thread_status(thread);
 		_lock_mutex();
@ -1796,7 +1757,7 @@ static void _init_thread_signals(void)
 	sigdelset(&my_sigset, SIGQUIT);

 	if (pthread_sigmask(SIG_BLOCK, &my_sigset, NULL))
-		log_sys_debug("pthread_sigmask", "SIG_BLOCK");
+		log_sys_error("pthread_sigmask", "SIG_BLOCK");
 }

 /*
@ -1808,8 +1769,7 @@ static void _init_thread_signals(void)
 */
 static void _exit_handler(int sig __attribute__((unused)))
 {
-	if (!_exit_now)
-		_exit_now = DM_SIGNALED_EXIT;
+	_exit_now = DM_SIGNALED_EXIT;
 }

 #ifdef __linux__
@ -1825,7 +1785,7 @@ static int _set_oom_adj(const char *oom_adj_path, int val)
 	fprintf(fp, "%i", val);

 	if (dm_fclose(fp))
-		log_sys_debug("fclose", oom_adj_path);
+		log_sys_error("fclose", oom_adj_path);

 	return 1;
 }
@ -1839,11 +1799,11 @@ static int _protect_against_oom_killer(void)

 	if (stat(OOM_ADJ_FILE, &st) == -1) {
 		if (errno != ENOENT)
-			log_sys_debug("stat", OOM_ADJ_FILE);
+			log_sys_error("stat", OOM_ADJ_FILE);

 		/* Try old oom_adj interface as a fallback */
 		if (stat(OOM_ADJ_FILE_OLD, &st) == -1) {
-			log_sys_debug("stat", OOM_ADJ_FILE_OLD);
+			log_sys_error("stat", OOM_ADJ_FILE_OLD);
 			return 1;
 		}

@ -1931,30 +1891,26 @@ out:

 static void _remove_files_on_exit(void)
 {
-	if (unlink(DMEVENTD_PIDFILE) && (errno != ENOENT))
-		log_sys_debug("unlink", DMEVENTD_PIDFILE);
+	if (unlink(DMEVENTD_PIDFILE))
+		log_sys_error("unlink", DMEVENTD_PIDFILE);

 	if (!_systemd_activation) {
-		if (unlink(DM_EVENT_FIFO_CLIENT) && (errno != ENOENT))
-			log_sys_debug("unlink", DM_EVENT_FIFO_CLIENT);
+		if (unlink(DM_EVENT_FIFO_CLIENT))
+			log_sys_error("unlink", DM_EVENT_FIFO_CLIENT);

-		if (unlink(DM_EVENT_FIFO_SERVER) && (errno != ENOENT))
-			log_sys_debug("unlink", DM_EVENT_FIFO_SERVER);
+		if (unlink(DM_EVENT_FIFO_SERVER))
+			log_sys_error("unlink", DM_EVENT_FIFO_SERVER);
 	}
 }

 static void _daemonize(void)
 {
-	int child_status, null_fd;
+	int child_status;
+	int fd;
 	pid_t pid;
+	struct rlimit rlim;
 	struct timeval tval;
 	sigset_t my_sigset;
-	struct custom_fds custom_fds = {
-		/* Do not close fds preloaded by systemd! */
-		.out = (_systemd_activation) ? SD_FD_FIFO_SERVER : -1,
-		.err = -1,
-		.report = (_systemd_activation) ? SD_FD_FIFO_CLIENT : -1,
-	};

 	sigemptyset(&my_sigset);
 	if (sigprocmask(SIG_SETMASK, &my_sigset, NULL) < 0) {
@ -1998,28 +1954,33 @@ static void _daemonize(void)
 	if (chdir("/"))
 		exit(EXIT_CHDIR_FAILURE);

-	daemon_close_stray_fds("dmeventd", 0, -1, &custom_fds);
+	if (getrlimit(RLIMIT_NOFILE, &rlim) < 0)
+		fd = 256;	/* just have to guess */
+	else
+		fd = rlim.rlim_cur;

-	if ((null_fd = open("/dev/null", O_RDWR)) < 0)
+	for (--fd; fd >= 0; fd--) {
+#ifdef __linux__
+		/* Do not close fds preloaded by systemd! */
+		if (_systemd_activation &&
+		    (fd == SD_FD_FIFO_SERVER || fd == SD_FD_FIFO_CLIENT))
+			continue;
+#endif
+		(void) close(fd);
+	}
+
+	if ((open("/dev/null", O_RDONLY) < 0) ||
+	    (open("/dev/null", O_WRONLY) < 0) ||
+	    (open("/dev/null", O_WRONLY) < 0))
 		exit(EXIT_DESC_OPEN_FAILURE);

-	if ((dup2(null_fd, STDIN_FILENO) == -1) ||
-	    (dup2(null_fd, STDOUT_FILENO) == -1) ||
-	    (dup2(null_fd, STDERR_FILENO) == -1))
-		exit(EXIT_DESC_OPEN_FAILURE);
-
-	if ((null_fd > STDERR_FILENO) && close(null_fd))
-		exit(EXIT_DESC_CLOSE_FAILURE);
-
 	setsid();
-
-	/* coverity[leaked_handle] 'null_fd' handle is not leaking */
 }

 static int _reinstate_registrations(struct dm_event_fifos *fifos)
 {
 	static const char _failed_parsing_msg[] = "Failed to parse existing event registration.\n";
-	static const char _delim[] = " ";
+	static const char *_delim = " ";
 	struct dm_event_daemon_message msg = { 0 };
 	char *endp, *dso_name, *dev_name, *mask, *timeout;
 	unsigned long mask_value, timeout_value;
@ -2069,94 +2030,28 @@ static int _reinstate_registrations(struct dm_event_fifos *fifos)
 	return 1;
 }

-static int _info_dmeventd(const char *name, struct dm_event_fifos *fifos)
-{
-	struct dm_event_daemon_message msg = { 0 };
-	int i, count = 0;
-	char *line;
-	int version;
-	int ret = 0;
-
-	if (!dm_daemon_is_running(DMEVENTD_PIDFILE)) {
-		fprintf(stderr, "No running dmeventd instance for status query.\n");
-		return 0;
-	}
-
-	/* Get the list of registrations from the running daemon. */
-	if (!init_fifos(fifos)) {
-		fprintf(stderr, "Could not initiate communication with existing dmeventd.\n");
-		return 0;
-	}
-
-	if (!dm_event_get_version(fifos, &version)) {
-		fprintf(stderr, "Could not communicate with existing dmeventd.\n");
-		goto out;
-	}
-
-	if (version < 1) {
-		fprintf(stderr, "The running dmeventd instance is too old.\n"
-			"Protocol version %d (required: 1). Action cancelled.\n", version);
-		goto out;
-	}
-
-	if (daemon_talk(fifos, &msg, DM_EVENT_CMD_GET_STATUS, "-", "-", 0, 0)) {
-		fprintf(stderr, "Failed to acquire status from existing dmeventd.\n");
-		goto out;
-	}
-
-	line = strchr(msg.data, ' ') + 1;
-	for (i = 0; msg.data[i]; ++i)
-		if (msg.data[i] == ';') {
-			msg.data[i] = 0;
-			if (!count)
-				printf("%s is monitoring:\n", name);
-			printf("%s\n", line);
-			line = msg.data + i + 1;
-			++count;
-		}
-
-	free(msg.data);
-
-	if (!count)
-		printf("%s does not monitor any device.\n", name);
-
-	if (version >= 2) {
-		if (daemon_talk(fifos, &msg, DM_EVENT_CMD_GET_PARAMETERS, "-", "-", 0, 0)) {
-			fprintf(stderr, "Failed to acquire parameters from existing dmeventd.\n");
-			goto out;
-		}
-		printf("%s internal status: %s\n", name, msg.data);
-		free(msg.data);
-	}
-
-	ret = 1;
-out:
-	fini_fifos(fifos);
-
-	return ret;
-}
-
-/* Return   0 - fail, 1 - success, 2 - continue */
-static int _restart_dmeventd(struct dm_event_fifos *fifos)
+static void _restart_dmeventd(void)
 {
+	struct dm_event_fifos fifos = {
+		.client = -1,
+		.server = -1,
+		/* FIXME Make these either configurable or depend directly on dmeventd_path */
+		.client_path = DM_EVENT_FIFO_CLIENT,
+		.server_path = DM_EVENT_FIFO_SERVER
+	};
 	struct dm_event_daemon_message msg = { 0 };
 	int i, count = 0;
 	char *message;
 	int version;
 	const char *e;

-	if (!dm_daemon_is_running(DMEVENTD_PIDFILE)) {
-		fprintf(stderr, "WARNING: Could not find running dmeventd associated with pid file %s.\n", DMEVENTD_PIDFILE);
-		return 0;
-	}
-
 	/* Get the list of registrations from the running daemon. */
-	if (!init_fifos(fifos)) {
+	if (!init_fifos(&fifos)) {
 		fprintf(stderr, "WARNING: Could not initiate communication with existing dmeventd.\n");
-		return 0;
+		exit(EXIT_FAILURE);
 	}

-	if (!dm_event_get_version(fifos, &version)) {
+	if (!dm_event_get_version(&fifos, &version)) {
 		fprintf(stderr, "WARNING: Could not communicate with existing dmeventd.\n");
 		goto bad;
 	}
@ -2168,7 +2063,7 @@ static int _restart_dmeventd(struct dm_event_fifos *fifos)
 		goto bad;
 	}

-	if (daemon_talk(fifos, &msg, DM_EVENT_CMD_GET_STATUS, "-", "-", 0, 0))
+	if (daemon_talk(&fifos, &msg, DM_EVENT_CMD_GET_STATUS, "-", "-", 0, 0))
 		goto bad;

 	message = strchr(msg.data, ' ') + 1;
@ -2192,7 +2087,7 @@ static int _restart_dmeventd(struct dm_event_fifos *fifos)
 	}

 	if (version >= 2) {
-		if (daemon_talk(fifos, &msg, DM_EVENT_CMD_GET_PARAMETERS, "-", "-", 0, 0)) {
+		if (daemon_talk(&fifos, &msg, DM_EVENT_CMD_GET_PARAMETERS, "-", "-", 0, 0)) {
 			fprintf(stderr, "Failed to acquire parameters from old dmeventd.\n");
 			goto bad;
 		}
@ -2212,7 +2107,7 @@ static int _restart_dmeventd(struct dm_event_fifos *fifos)
 	}
 #endif

-	if (daemon_talk(fifos, &msg, DM_EVENT_CMD_DIE, "-", "-", 0, 0)) {
+	if (daemon_talk(&fifos, &msg, DM_EVENT_CMD_DIE, "-", "-", 0, 0)) {
 		fprintf(stderr, "Old dmeventd refused to die.\n");
 		goto bad;
 	}
@ -2221,41 +2116,43 @@ static int _restart_dmeventd(struct dm_event_fifos *fifos)
 	    ((e = getenv(SD_ACTIVATION_ENV_VAR_NAME)) && strcmp(e, "1")))
 		_systemd_activation = 1;

-	fini_fifos(fifos);
-
-	/* Give a few seconds dmeventd to finish */
-	_wait_for_new_pid();
-
-	if (!_systemd_activation)
-		return 2; // continue with dmeventd start up
-
-	/* Reopen fifos. */
-	if (!init_fifos(fifos)) {
-		fprintf(stderr, "Could not initiate communication with new instance of dmeventd.\n");
-		return 0;
+	for (i = 0; i < 10; ++i) {
+		if ((access(DMEVENTD_PIDFILE, F_OK) == -1) && (errno == ENOENT))
+			break;
+		usleep(10);
 	}

-	if (!_reinstate_registrations(fifos)) {
+	if (!_systemd_activation) {
+		fini_fifos(&fifos);
+		return;
+	}
+
+	/* Reopen fifos. */
+	fini_fifos(&fifos);
+	if (!init_fifos(&fifos)) {
+		fprintf(stderr, "Could not initiate communication with new instance of dmeventd.\n");
+		exit(EXIT_FAILURE);
+	}
+
+	if (!_reinstate_registrations(&fifos)) {
 		fprintf(stderr, "Failed to reinstate monitoring with new instance of dmeventd.\n");
 		goto bad;
 	}

-	fini_fifos(fifos);
-	return 1;
+	fini_fifos(&fifos);
+	exit(EXIT_SUCCESS);
 bad:
-	fini_fifos(fifos);
-	return 0;
+	fini_fifos(&fifos);
+	exit(EXIT_FAILURE);
 }

 static void _usage(char *prog, FILE *file)
 {
 	fprintf(file, "Usage:\n"
-		"%s [-d [-d [-d]]] [-e path] [-f] [-h] [i] [-l] [-R] [-V] [-?]\n\n"
+		"%s [-d [-d [-d]]] [-f] [-h] [-l] [-R] [-V] [-?]\n\n"
 		"   -d       Log debug messages to syslog (-d, -dd, -ddd)\n"
-		"   -e       Select a file path checked on exit\n"
 		"   -f       Don't fork, run in the foreground\n"
 		"   -h       Show this help information\n"
-		"   -i       Query running instance of dmeventd for info\n"
 		"   -l       Log to stdout,stderr instead of syslog\n"
 		"   -?       Show this help information on stderr\n"
 		"   -R       Restart dmeventd\n"
@ -2265,10 +2162,6 @@ static void _usage(char *prog, FILE *file)
 int main(int argc, char *argv[])
 {
 	signed char opt;
-	int debug_level = 0;
-	int info = 0;
-	int restart = 0;
-	int use_syslog = 1;
 	struct dm_event_fifos fifos = {
 		.client = -1,
 		.server = -1,
@ -2276,58 +2169,39 @@ int main(int argc, char *argv[])
 		.server_path = DM_EVENT_FIFO_SERVER
 	};
 	time_t now, idle_exit_timeout = DMEVENTD_IDLE_EXIT_TIMEOUT;
+	opterr = 0;
+	optind = 0;

-	optopt = optind = opterr = 0;
-	optarg = (char*) "";
-	while ((opt = getopt(argc, argv, ":?e:fhiVdlR")) != EOF) {
+	while ((opt = getopt(argc, argv, "?fhVdlR")) != EOF) {
 		switch (opt) {
 		case 'h':
 			_usage(argv[0], stdout);
-			return EXIT_SUCCESS;
+			exit(EXIT_SUCCESS);
 		case '?':
 			_usage(argv[0], stderr);
-			return EXIT_SUCCESS;
-		case 'i':
-			info++;
-			break;
+			exit(EXIT_SUCCESS);
 		case 'R':
-			restart++;
-			break;
-		case 'e':
-			if (strchr(optarg, '"')) {
-				fprintf(stderr, "dmeventd: option -e does not accept path \"%s\" with '\"' character.\n", optarg);
-				return EXIT_FAILURE;
-			}
-			_exit_on=optarg;
+			_restart++;
 			break;
 		case 'f':
 			_foreground++;
 			break;
 		case 'd':
-			debug_level++;
+			_debug_level++;
 			break;
 		case 'l':
-			use_syslog = 0;
+			_use_syslog = 0;
 			break;
 		case 'V':
 			printf("dmeventd version: %s\n", DM_LIB_VERSION);
-			return EXIT_SUCCESS;
-		case ':':
-			fprintf(stderr, "dmeventd: option -%c requires an argument.\n", optopt);
-			return EXIT_FAILURE;
+			exit(EXIT_SUCCESS);
 		}
 	}

-	if (info) {
-		_foreground = 1;
-		use_syslog = 0;
-	}
-
-	if (!_foreground && !use_syslog) {
+	if (!_foreground && !_use_syslog) {
 		printf("WARNING: Ignoring logging to stdout, needs options -f\n");
-		use_syslog = 1;
+		_use_syslog = 1;
 	}
-
 	/*
 	 * Switch to C locale to avoid reading large locale-archive file
 	 * used by some glibc (on some distributions it takes over 100MB).
@ -2336,29 +2210,21 @@ int main(int argc, char *argv[])
 	if (setenv("LC_ALL", "C", 1))
 		perror("Cannot set LC_ALL to C");

-	if (info)
-		return _info_dmeventd(argv[0], &fifos) ? EXIT_SUCCESS : EXIT_FAILURE;
+	if (_restart)
+		_restart_dmeventd();

 #ifdef __linux__
 	_systemd_activation = _systemd_handover(&fifos);
 #endif

-	dm_log_with_errno_init(_libdm_log);
-
-	if (restart) {
-		dm_event_log_set(debug_level, 0);
-
-		if ((restart = _restart_dmeventd(&fifos)) < 2)
-			return restart ? EXIT_SUCCESS : EXIT_FAILURE;
-	}
-
 	if (!_foreground)
 		_daemonize();

-	if (use_syslog)
+	if (_use_syslog)
 		openlog("dmeventd", LOG_PID, LOG_DAEMON);

-	dm_event_log_set(debug_level, use_syslog);
+	dm_event_log_set(_debug_level, _use_syslog);
+	dm_log_with_errno_init(_libdm_log);

 	(void) dm_prepare_selinux_context(DMEVENTD_PIDFILE, S_IFREG);
 	if (dm_create_lockfile(DMEVENTD_PIDFILE) == 0)
@ -2419,28 +2285,15 @@ int main(int argc, char *argv[])
 					break;
 				}
 			}
-		} else
-			switch (_exit_now) {
-			case DM_SIGNALED_EXIT:
-				_exit_now = DM_SCHEDULED_EXIT;
-				/*
-				 * When '_exit_now' is set, signal has been received,
-				 * but can not simply exit unless all
-				 * threads are done processing.
-				 */
-				log_info("dmeventd received break, scheduling exit.");
-				/* fall through */
-			case DM_SCHEDULED_EXIT:
-				/* While exit is scheduled, check for exit_on file */
-				DEBUGLOG("Checking exit on file \"%s\".", _exit_on);
-				if (_exit_on[0] && (access(_exit_on, F_OK) == 0)) {
-					log_info("dmeventd detected exit on file %s, unregistering all monitored devices.",
-						 _exit_on);
-					_unregister_all_threads();
-				}
-				break;
-			}
-
+		} else if (_exit_now == DM_SIGNALED_EXIT) {
+			_exit_now = DM_SCHEDULED_EXIT;
+			/*
+			 * When '_exit_now' is set, signal has been received,
+			 * but can not simply exit unless all
+			 * threads are done processing.
+			 */
+			log_info("dmeventd received break, scheduling exit.");
+		}
 		_process_request(&fifos);
 		_cleanup_unused_threads();
 	}
@ -2450,11 +2303,11 @@ int main(int argc, char *argv[])
 	log_notice("dmeventd shutting down.");

 	if (fifos.client >= 0 && close(fifos.client))
-		log_sys_debug("client close", fifos.client_path);
+		log_sys_error("client close", fifos.client_path);
 	if (fifos.server >= 0 && close(fifos.server))
-		log_sys_debug("server close", fifos.server_path);
+		log_sys_error("server close", fifos.server_path);

-	if (use_syslog)
+	if (_use_syslog)
 		closelog();

 	_exit_dm_lib();
--- a/daemons/dmeventd/dmeventd.h
+++ b/daemons/dmeventd/dmeventd.h
@ -68,7 +68,7 @@ struct dm_event_fifos {
 int daemon_talk(struct dm_event_fifos *fifos,
 		struct dm_event_daemon_message *msg, int cmd,
 		const char *dso_name, const char *dev_name,
-		unsigned evmask, uint32_t timeout);
+		enum dm_event_mask evmask, uint32_t timeout);
 int init_fifos(struct dm_event_fifos *fifos);
 void fini_fifos(struct dm_event_fifos *fifos);
 int dm_event_get_version(struct dm_event_fifos *fifos, int *version);
--- a/daemons/dmeventd/libdevmapper-event.c
+++ b/daemons/dmeventd/libdevmapper-event.c
@ -352,7 +352,7 @@ static int _daemon_write(struct dm_event_fifos *fifos,
 int daemon_talk(struct dm_event_fifos *fifos,
 		struct dm_event_daemon_message *msg, int cmd,
 		const char *dso_name, const char *dev_name,
-		unsigned evmask, uint32_t timeout)
+		enum dm_event_mask evmask, uint32_t timeout)
 {
 	int msg_size;
 	memset(msg, 0, sizeof(*msg));
@ -400,16 +400,25 @@ int daemon_talk(struct dm_event_fifos *fifos,
 	return (int32_t) msg->cmd;
 }

-
 /*
- * Check for usable client fifo file
+ * start_daemon
 *
- * Returns: 2 client path does not exists, dmeventd should be restarted
- *          1 on success, 0 otherwise
+ * This function forks off a process (dmeventd) that will handle
+ * the events.  I am currently test opening one of the fifos to
+ * ensure that the daemon is running and listening...  I thought
+ * this would be less expensive than fork/exec'ing every time.
+ * Perhaps there is an even quicker/better way (no, checking the
+ * lock file is _not_ a better way).
+ *
+ * Returns: 1 on success, 0 otherwise
 */
-static int _check_for_usable_fifos(char *dmeventd_path, struct dm_event_fifos *fifos)
+static int _start_daemon(char *dmeventd_path, struct dm_event_fifos *fifos)
 {
+	int pid, ret = 0;
+	int status;
 	struct stat statbuf;
+	char default_dmeventd_path[] = DMEVENTD_PATH;
+	char *args[] = { dmeventd_path ? : default_dmeventd_path, NULL };

 	/*
 	 * FIXME Explicitly verify the code's requirement that client_path is secure:
@ -420,7 +429,7 @@ static int _check_for_usable_fifos(char *dmeventd_path, struct dm_event_fifos *f
 	if ((lstat(fifos->client_path, &statbuf) < 0)) {
 		if (errno == ENOENT)
 			/* Jump ahead if fifo does not already exist. */
-			return 2;
+			goto start_server;
 		else {
 			log_sys_error("stat", fifos->client_path);
 			return 0;
@ -446,14 +455,12 @@ static int _check_for_usable_fifos(char *dmeventd_path, struct dm_event_fifos *f
 			log_error("%s is no longer a secure root-owned fifo with mode 0600.", fifos->client_path);
 			if (close(fifos->client))
 				log_sys_debug("close", fifos->client_path);
-			fifos->client = -1;
 			return 0;
 		}

 		/* server is running and listening */
 		if (close(fifos->client))
 			log_sys_debug("close", fifos->client_path);
-		fifos->client = -1;
 		return 1;
 	}
 	if (errno != ENXIO && errno != ENOENT)  {
@ -462,36 +469,9 @@ static int _check_for_usable_fifos(char *dmeventd_path, struct dm_event_fifos *f
 		return 0;
 	}

-	return 2;
-}
-
-
-/*
- * start_daemon
- *
- * This function forks off a process (dmeventd) that will handle
- * the events.  I am currently test opening one of the fifos to
- * ensure that the daemon is running and listening...  I thought
- * this would be less expensive than fork/exec'ing every time.
- * Perhaps there is an even quicker/better way (no, checking the
- * lock file is _not_ a better way).
- *
- * Returns: 1 on success, 0 otherwise
- */
-static int _start_daemon(char *dmeventd_path, struct dm_event_fifos *fifos)
-{
-	struct stat statbuf;
-	char default_dmeventd_path[] = DMEVENTD_PATH;
-	char *args[] = { dmeventd_path ? : default_dmeventd_path, NULL };
-	int pid, ret = 0;
-	int status;
-
-	switch (_check_for_usable_fifos(dmeventd_path, fifos)) {
-	case 0: return_0;
-	case 1: return 1; /* Already running dmeventd */
-	}
-
+start_server:
 	/* server is not running */
+
 	if ((args[0][0] == '/') && stat(args[0], &statbuf)) {
 		log_sys_error("stat", args[0]);
 		return 0;
@ -512,17 +492,8 @@ static int _start_daemon(char *dmeventd_path, struct dm_event_fifos *fifos)
 				  strerror(errno));
 		else if (WEXITSTATUS(status))
 			log_error("Unable to start dmeventd.");
-		else {
-			/* Loop here till forked dmeventd is serving fifos */
-			for (ret = 100; ret > 0; --ret)
-				switch (_check_for_usable_fifos(dmeventd_path, fifos)) {
-				case 0: return_0;
-				case 1: return 1;
-				case 2: usleep(1000); break;
-				}
-			/* ret == 0 */
-			log_error("Dmeventd is not serving fifos.");
-		}
+		else
+			ret = 1;
 	}

 	return ret;
@ -542,7 +513,7 @@ int init_fifos(struct dm_event_fifos *fifos)
 	/* Lock out anyone else trying to do communication with the daemon. */
 	if (flock(fifos->server, LOCK_EX) < 0) {
 		log_sys_error("flock", fifos->server_path);
-		goto bad_no_unlock;
+		goto bad;
 	}

 /*	if ((fifos->client = open(fifos->client_path, O_WRONLY | O_NONBLOCK)) < 0) {*/
@ -553,9 +524,6 @@ int init_fifos(struct dm_event_fifos *fifos)

 	return 1;
 bad:
-	if (flock(fifos->server, LOCK_UN))
-		log_sys_debug("flock unlock", fifos->server_path);
-bad_no_unlock:
 	if (close(fifos->server))
 		log_sys_debug("close", fifos->server_path);
 	fifos->server = -1;
@ -584,8 +552,6 @@ void fini_fifos(struct dm_event_fifos *fifos)
 		if (close(fifos->server))
 			log_sys_debug("close", fifos->server_path);
 	}
-
-	fifos->client = fifos->server = -1;
 }

 /* Get uuid of a device */
@ -754,7 +720,7 @@ static char *_fetch_string(char **src, const int delimiter)

 /* Parse a device message from the daemon. */
 static int _parse_message(struct dm_event_daemon_message *msg, char **dso_name,
-			 char **uuid, unsigned *evmask)
+			 char **uuid, enum dm_event_mask *evmask)
 {
 	char *id;
 	char *p = msg->data;
@ -779,7 +745,7 @@ int dm_event_get_registered_device(struct dm_event_handler *dmevh, int next)
 	int ret = 0;
 	const char *uuid = NULL;
 	char *reply_dso = NULL, *reply_uuid = NULL;
-	unsigned reply_mask = 0;
+	enum dm_event_mask reply_mask = 0;
 	struct dm_task *dmt = NULL;
 	struct dm_event_daemon_message msg = { 0 };
 	struct dm_info info;
@ -878,7 +844,6 @@ int dm_event_get_registered_device(struct dm_event_handler *dmevh, int next)
 int dm_event_get_version(struct dm_event_fifos *fifos, int *version) {
 	char *p;
 	struct dm_event_daemon_message msg = { 0 };
-	int ret = 0;

 	if (daemon_talk(fifos, &msg, DM_EVENT_CMD_HELLO, NULL, NULL, 0, 0))
 		return 0;
@ -886,17 +851,13 @@ int dm_event_get_version(struct dm_event_fifos *fifos, int *version) {
 	*version = 0;

 	if (!p || !(p = strchr(p, ' '))) /* Message ID */
-		goto out;
+		return 0;
 	if (!(p = strchr(p + 1, ' '))) /* HELLO */
-		goto out;
+		return 0;
 	if ((p = strchr(p + 1, ' '))) /* HELLO, once more */
 		*version = atoi(p);

-	ret = 1;
-out:
-	free(msg.data);
-
-	return ret;
+	return 1;
 }

 void dm_event_log_set(int debug_log_level, int use_syslog)
@ -911,11 +872,11 @@ void dm_event_log(const char *subsys, int level, const char *file,
 {
 	static int _abort_on_internal_errors = -1;
 	static pthread_mutex_t _log_mutex = PTHREAD_MUTEX_INITIALIZER;
-	static long long _start = 0;
+	static time_t start = 0;
 	const char *indent = "";
 	FILE *stream = log_stderr(level) ? stderr : stdout;
 	int prio;
-	long long now, now_nsec;
+	time_t now;
 	int log_with_debug = 0;

 	if (subsys[0] == '#') {
@ -962,28 +923,17 @@ void dm_event_log(const char *subsys, int level, const char *file,
 	if (_use_syslog) {
 		vsyslog(prio, format, ap);
 	} else {
-		if (_debug_level) {
-#define _NSEC_PER_SEC (1000000000LL)
-#ifdef HAVE_REALTIME
-			struct timespec mono_time = { 0 };
-			if (clock_gettime(CLOCK_MONOTONIC, &mono_time) == 0)
-				now = mono_time.tv_sec * _NSEC_PER_SEC + mono_time.tv_nsec;
-			else
-#endif
-				now = time(NULL) * _NSEC_PER_SEC;
-
-			if (!_start)
-				_start = now;
-			now -= _start;
-			now_nsec = now %_NSEC_PER_SEC;
-			now /= _NSEC_PER_SEC;
-			fprintf(stream, "[%2lld:%02lld.%06lld] %8x:%-6s%s",
-				now / 60, now % 60, now_nsec / 1000,
+		now = time(NULL);
+		if (!start)
+			start = now;
+		now -= start;
+		if (_debug_level)
+			fprintf(stream, "[%2d:%02d] %8x:%-6s%s",
+				(int)now / 60, (int)now % 60,
 				// TODO: Maybe use shorter ID
 				// ((int)(pthread_self()) >> 6) & 0xffff,
 				(int)pthread_self(), subsys,
 				(_debug_level > 3) ? "" : indent);
-		}
 		if (_debug_level > 3)
 			fprintf(stream, "%28s:%4d %s", file, line, indent);
 		vfprintf(stream, _(format), ap);
@ -1007,7 +957,7 @@ void dm_event_log(const char *subsys, int level, const char *file,

 static char *_skip_string(char *src, const int delimiter)
 {
-	src = strchr(src, delimiter);
+	src = srtchr(src, delimiter);
 	if (src && *(src + 1))
 		return src + 1;
 	return NULL;
--- a/daemons/dmeventd/libdevmapper-event.h
+++ b/daemons/dmeventd/libdevmapper-event.h
@ -41,7 +41,7 @@ enum dm_event_mask {

 	DM_EVENT_STATUS_MASK    = 0xFF0000,
 	DM_EVENT_SYNC_STATUS	= 0x010000, /* Mirror synchronization completed/failed. */
-	DM_EVENT_TIMEOUT	= 0x020000, /* Timeout has occurred */
+	DM_EVENT_TIMEOUT	= 0x020000, /* Timeout has occured */

 	DM_EVENT_REGISTRATION_PENDING = 0x1000000, /* Monitor thread is setting-up/shutting-down */
 };
@ -109,7 +109,7 @@ int dm_event_unregister_handler(const struct dm_event_handler *dmevh);
 /* Set debug level for logging, and whether to log on stdout/stderr or syslog */
 void dm_event_log_set(int debug_log_level, int use_syslog);

-/* Log messages according to current debug level  */
+/* Log messages acroding to current debug level  */
 __attribute__((format(printf, 6, 0)))
 void dm_event_log(const char *subsys, int level, const char *file,
 		  int line, int dm_errno_or_class,
--- a/daemons/dmeventd/plugins/lvm2/dmeventd_lvm.c
+++ b/daemons/dmeventd/plugins/lvm2/dmeventd_lvm.c
@ -87,7 +87,7 @@ int dmeventd_lvm2_init(void)
 		lvm2_disable_dmeventd_monitoring(_lvm_handle);
 		/* FIXME Temporary: move to dmeventd core */
 		lvm2_run(_lvm_handle, "_memlock_inc");
-		log_debug("lvm plugin initialized.");
+		log_debug("lvm plugin initilized.");
 	}

 	_register_count++;
@ -103,7 +103,7 @@ void dmeventd_lvm2_exit(void)
 	pthread_mutex_lock(&_register_mutex);

 	if (!--_register_count) {
-		log_debug("lvm plugin shutting down.");
+		log_debug("lvm plugin shuting down.");
 		lvm2_run(_lvm_handle, "_memlock_dec");
 		dm_pool_destroy(_mem_pool);
 		_mem_pool = NULL;
@ -123,7 +123,6 @@ struct dm_pool *dmeventd_lvm2_pool(void)

 int dmeventd_lvm2_run(const char *cmdline)
 {
-	/* coverity[missing_lock] no locking for run part */
 	return (lvm2_run(_lvm_handle, cmdline) == LVM2_COMMAND_SUCCEEDED);
 }

--- a/daemons/dmeventd/plugins/mirror/dmeventd_mirror.c
+++ b/daemons/dmeventd/plugins/mirror/dmeventd_mirror.c
@ -38,7 +38,7 @@ static void _process_status_code(dm_status_mirror_health_t health,
 	 *    A => Alive - No failures
 	 *    D => Dead - A write failure occurred leaving mirror out-of-sync
 	 *    F => Flush failed.
-	 *    S => Sync - A synchronization failure occurred, mirror out-of-sync
+	 *    S => Sync - A sychronization failure occurred, mirror out-of-sync
 	 *    R => Read - A read failure occurred, mirror data unaffected
 	 *    U => Unclassified failure (bug)
 	 */ 
--- a/daemons/dmeventd/plugins/raid/dmeventd_raid.c
+++ b/daemons/dmeventd/plugins/raid/dmeventd_raid.c
@ -17,7 +17,7 @@
 #include "daemons/dmeventd/libdevmapper-event.h"
 #include "lib/config/defaults.h"

-/* Hold enough elements for the maximum number of RAID images */
+/* Hold enough elements for the mximum number of RAID images */
 #define	RAID_DEVS_ELEMS	((DEFAULT_RAID_MAX_IMAGES + 63) / 64)

 struct dso_state {
--- a/daemons/dmeventd/plugins/thin/dmeventd_thin.c
+++ b/daemons/dmeventd/plugins/thin/dmeventd_thin.c
@ -87,7 +87,7 @@ static int _run_command(struct dso_state *state)
 	log_verbose("Executing command: %s", state->cmd_str);

 	/* TODO:
-	 *   Support parallel run of 'task' and it's waitpid maintenance
+	 *   Support parallel run of 'task' and it's waitpid maintainence
 	 *   ATM we can't handle signaling of  SIGALRM
 	 *   as signalling is not allowed while 'process_event()' is running
 	 */
@ -245,7 +245,7 @@ void process_event(struct dm_task *dmt,
 	/*
 	 * Trigger action when threshold boundary is exceeded.
 	 * Report 80% threshold warning when it's used above 80%.
-	 * Only 100% is exception as it cannot be surpassed so policy
+	 * Only 100% is exception as it cannot be surpased so policy
 	 * action is called for:  >50%, >55% ... >95%, 100%
 	 */
 	state->metadata_percent = dm_make_percent(tps->used_metadata_blocks, tps->total_metadata_blocks);
@ -379,7 +379,7 @@ int register_device(const char *device,

 		state->argv[1] = str + 1;  /* 1 argument - vg/lv */
 		_init_thread_signals(state);
-	} else /* Unsupported command format */
+	} else /* Unuspported command format */
 		goto inval;

 	state->pid = -1;
--- a/daemons/dmeventd/plugins/vdo/dmeventd_vdo.c
+++ b/daemons/dmeventd/plugins/vdo/dmeventd_vdo.c
@ -19,7 +19,7 @@
 /*
 * Use parser from new device_mapper library.
 * Although during compilation we can see dm_vdo_status_parse()
- * in runtime we are linked against systems libdm 'older' library
+ * in runtime we are linked agains systems libdm 'older' library
 * which does not provide this symbol and plugin fails to load
 */
 /* coverity[unnecessary_header] used for parsing */
@ -78,7 +78,7 @@ static int _run_command(struct dso_state *state)
 	log_verbose("Executing command: %s", state->cmd_str);

 	/* TODO:
-	 *   Support parallel run of 'task' and it's waitpid maintenance
+	 *   Support parallel run of 'task' and it's waitpid maintainence
 	 *   ATM we can't handle signaling of  SIGALRM
 	 *   as signalling is not allowed while 'process_event()' is running
 	 */
@ -227,7 +227,7 @@ void process_event(struct dm_task *dmt,
 	/*
 	 * Trigger action when threshold boundary is exceeded.
 	 * Report 80% threshold warning when it's used above 80%.
-	 * Only 100% is exception as it cannot be surpassed so policy
+	 * Only 100% is exception as it cannot be surpased so policy
 	 * action is called for:  >50%, >55% ... >95%, 100%
 	 */
 	if ((state->percent > WARNING_THRESH) &&
@ -354,7 +354,7 @@ int register_device(const char *device,
 		_init_thread_signals(state);
 	} else if (cmd[0] == 0) {
 		state->name = "volume"; /* What to use with 'others?' */
-	} else/* Unsupported command format */
+	} else/* Unuspported command format */
 		goto inval;

 	state->pid = -1;
--- a/daemons/lvmdbusd/Makefile.in
+++ b/daemons/lvmdbusd/Makefile.in
@ -51,14 +51,18 @@ include $(top_builddir)/make.tmpl

 .PHONY: install_lvmdbusd

+all:
+	$(Q) test -x $(LVMDBUSD) || chmod 755 $(LVMDBUSD)
+
 install_lvmdbusd: $(LVMDBUSD)
-	$(SHOW) "    [INSTALL] $<"
+	@echo "    [INSTALL] $<"
 	$(Q) $(INSTALL_DIR) $(sbindir)
 	$(Q) $(INSTALL_SCRIPT) $(LVMDBUSD) $(sbindir)
-	$(Q) $(INSTALL_DIR) $(lvmdbusdir) $(lvmdbusdir)/__pycache__
+	$(Q) $(INSTALL_DIR) $(lvmdbusdir)
 	$(Q) (cd $(srcdir); $(INSTALL_DATA) $(LVMDBUS_SRCDIR_FILES) $(lvmdbusdir))
 	$(Q) $(INSTALL_DATA) $(LVMDBUS_BUILDDIR_FILES) $(lvmdbusdir)
 	$(Q) PYTHON=$(PYTHON3) $(PYCOMPILE) --destdir "$(DESTDIR)" --basedir "$(lvmdbuspydir)" $(LVMDBUS_SRCDIR_FILES) $(LVMDBUS_BUILDDIR_FILES)
+	$(Q) $(CHMOD) 755 $(lvmdbusdir)/__pycache__
 	$(Q) $(CHMOD) 444 $(lvmdbusdir)/__pycache__/*.py[co]

 install_lvm2: install_lvmdbusd
--- a/daemons/lvmdbusd/automatedproperties.py
+++ b/daemons/lvmdbusd/automatedproperties.py
@ -44,10 +44,10 @@ class AutomatedProperties(dbus.service.Object):

 	def set_interface(self, interface):
 		"""
-		With inheritance, we can't easily tell what interfaces a class provides,
+		With inheritance we can't easily tell what interfaces a class provides
 		so we will have each class that implements an interface tell the
 		base AutomatedProperties what it is they do provide.  This is kind of
-		clunky, and perhaps we can figure out a better way to do this later.
+		clunky and perhaps we can figure out a better way to do this later.
 		:param interface:       An interface the object supports
 		:return:
 		"""
@ -88,6 +88,7 @@ class AutomatedProperties(dbus.service.Object):
 			cb, cbe, False)
 		cfg.worker_q.put(r)

+
 	@staticmethod
 	def _get_all_prop(obj, interface_name):
 		if interface_name in obj.interface(True):
--- a/daemons/lvmdbusd/background.py
+++ b/daemons/lvmdbusd/background.py
@ -7,13 +7,16 @@
 # You should have received a copy of the GNU General Public License
 # along with this program. If not, see <http://www.gnu.org/licenses/>.

+import subprocess
 from . import cfg
 from .cmdhandler import options_to_cli_args, LvmExecutionMeta, call_lvm
 import dbus
-from .utils import pv_range_append, pv_dest_ranges, log_error, log_debug
+from .utils import pv_range_append, pv_dest_ranges, log_error, log_debug,\
+					mt_async_call
 from .request import RequestEntry
 import threading
 import time
+import traceback


 def pv_move_lv_cmd(move_options, lv_full_name,
@ -62,15 +65,18 @@ def _move_callback(job_state, line_str):
 def _move_merge(interface_name, command, job_state):
 	# We need to execute these command stand alone by forking & exec'ing
 	# the command always as we will be getting periodic output from them on
-	# the status of the long-running operation.
+	# the status of the long running operation.

-	meta = LvmExecutionMeta(time.time(), 0, command)
-	cfg.flightrecorder.add(meta)
+	meta = LvmExecutionMeta(time.time(), 0, command, -1000, None, None)
+	cfg.blackbox.add(meta)

 	ec, stdout, stderr = call_lvm(command, line_cb=_move_callback,
 									cb_data=job_state)
-	ended = time.time()
-	meta.completed(ended, ec, stdout, stderr)
+
+	with meta.lock:
+		meta.ended = time.time()
+		meta.ec = ec
+		meta.stderr_txt = stderr

 	if ec == 0:
 		job_state.Percent = 100
--- a/daemons/lvmdbusd/cfg.py
+++ b/daemons/lvmdbusd/cfg.py
@ -11,18 +11,11 @@ import os
 import multiprocessing
 import queue
 import itertools
-from lvmdbusd.utils import LvmDebugData

 from lvmdbusd import path

 LVM_CMD = os.getenv('LVM_BINARY', path.LVM_BINARY)

-LOCK_FILE = os.getenv("LVM_DBUSD_LOCKFILE", "/var/lock/lvm/lvmdbusd")
-
-# Save off the debug data needed for lvm team to debug issues
-# only used for 'fullreport' at this time.
-lvmdebug = LvmDebugData(os.getenv('LVM_DBUSD_COLLECT_LVM_DEBUG', False))
-
 # This is the global object manager
 om = None

@ -32,13 +25,13 @@ bus = None
 # Command line args
 args = None

-# Set to true if we depend on external events for updates
+# Set to true if we are depending on external events for updates
 got_external_event = False

 # Shared state variable across all processes
 run = multiprocessing.Value('i', 1)

-# If this is set to true, the current setup support lvm shell, and we are
+# If this is set to true, the current setup support lvm shell and we are
 # running in that mode of operation
 SHELL_IN_USE = None

@ -50,11 +43,6 @@ worker_q = queue.Queue()
 # Main event loop
 loop = None

-G_LOOP_TMO = 0.5
-
-# Used to instruct the daemon if we should ignore SIGTERM
-ignore_sigterm = False
-
 BUS_NAME = os.getenv('LVM_DBUS_NAME', 'com.redhat.lvmdbus1')
 BASE_INTERFACE = 'com.redhat.lvmdbus1'
 PV_INTERFACE = BASE_INTERFACE + '.Pv'
@ -102,14 +90,11 @@ vdo_support = False
 db = None

 # lvm flight recorder
-flightrecorder = None
+blackbox = None

 # RequestEntry ctor
 create_request_entry = None

-# Circular debug log
-debug = None
-

 def exit_daemon():
    """
@ -119,6 +104,3 @@ def exit_daemon():
    if run and loop:
        run.value = 0
        loop.quit()
-
-
-systemd = False
--- a/daemons/lvmdbusd/cmdhandler.py
+++ b/daemons/lvmdbusd/cmdhandler.py
@ -6,18 +6,19 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with this program. If not, see <http://www.gnu.org/licenses/>.
-import errno
+
 from subprocess import Popen, PIPE
 import select
 import time
 import threading
 from itertools import chain
 import collections
+import traceback
 import os

 from lvmdbusd import cfg
 from lvmdbusd.utils import pv_dest_ranges, log_debug, log_error, add_no_notify,\
-			make_non_block, read_decoded, extract_stack_trace, LvmBug, add_config_option, get_error_msg
+							make_non_block, read_decoded
 from lvmdbusd.lvm_shell_proxy import LVMShellProxy

 try:
@ -25,6 +26,7 @@ try:
 except ImportError:
 	import json

+SEP = '{|}'

 total_time = 0.0
 total_count = 0
@ -36,7 +38,7 @@ cmd_lock = threading.RLock()

 class LvmExecutionMeta(object):

-	def __init__(self, start, ended, cmd, ec=-1000, stdout_txt=None, stderr_txt=None):
+	def __init__(self, start, ended, cmd, ec, stdout_txt, stderr_txt):
 		self.lock = threading.RLock()
 		self.start = start
 		self.ended = ended
@ -47,49 +49,32 @@ class LvmExecutionMeta(object):

 	def __str__(self):
 		with self.lock:
-			if self.ended == 0:
-				ended_txt = "still running"
-				self.ended = time.time()
-			else:
-				ended_txt = str(time.ctime(self.ended))
-
-			return 'EC= %d for "%s"\n' \
-				"STARTED: %s, ENDED: %s, DURATION: %f\n" \
+			return "EC= %d for %s\n" \
+				"STARTED: %f, ENDED: %f\n" \
 				"STDOUT=%s\n" \
 				"STDERR=%s\n" % \
-				(self.ec, " ".join(self.cmd), time.ctime(self.start), ended_txt, float(self.ended) - self.start,
-					self.stdout_txt,
-					self.stderr_txt)
-
-	def completed(self, end_time, ec, stdout_txt, stderr_txt):
-		with self.lock:
-			self.ended = end_time
-			self.ec = ec
-			self.stdout_txt = stdout_txt
-			self.stderr_txt = stderr_txt
+				(self.ec, str(self.cmd), self.start, self.ended, self.stdout_txt,
+				self.stderr_txt)


 class LvmFlightRecorder(object):

 	def __init__(self, size=16):
 		self.queue = collections.deque(maxlen=size)
-		self.lock = threading.RLock()

 	def add(self, lvm_exec_meta):
-		with self.lock:
-			self.queue.append(lvm_exec_meta)
+		self.queue.append(lvm_exec_meta)

 	def dump(self):
-		with self.lock:
+		with cmd_lock:
 			if len(self.queue):
-				log_error("LVM dbus flight recorder START (in order of newest to oldest)")
+				log_error("LVM dbus flight recorder START")
 				for c in reversed(self.queue):
 					log_error(str(c))
 				log_error("LVM dbus flight recorder END")
-				self.queue.clear()


-cfg.flightrecorder = LvmFlightRecorder()
+cfg.blackbox = LvmFlightRecorder()


 def _debug_c(cmd, exit_code, out):
@ -109,7 +94,7 @@ def call_lvm(command, debug=False, line_cb=None,
 					stdin, CALL MUST EXECUTE QUICKLY and not *block*
 					otherwise call_lvm function will fail to read
 					stdin/stdout.  Return value of call back is ignored
-	:param cb_data: Supplied to call back to allow caller access to
+	:param cb_data: Supplied to callback to allow caller access to
 								its own data

 	# Callback signature
@ -121,9 +106,6 @@ def call_lvm(command, debug=False, line_cb=None,
 	command.insert(0, cfg.LVM_CMD)
 	command = add_no_notify(command)

-	# Ensure we get an error message when we fork & exec the lvm command line
-	command = add_config_option(command, "--config", 'log/command_log_selection="log_context!=''"')
-
 	process = Popen(command, stdout=PIPE, stderr=PIPE, close_fds=True,
 					env=os.environ)

@ -133,10 +115,10 @@ def call_lvm(command, debug=False, line_cb=None,
 	make_non_block(process.stdout)
 	make_non_block(process.stderr)

-	while True and cfg.run.value != 0:
+	while True:
 		try:
 			rd_fd = [process.stdout.fileno(), process.stderr.fileno()]
-			ready = select.select(rd_fd, [], [], cfg.G_LOOP_TMO)
+			ready = select.select(rd_fd, [], [], 2)

 			for r in ready[0]:
 				if r == process.stdout.fileno():
@ -151,8 +133,8 @@ def call_lvm(command, debug=False, line_cb=None,
 					if i != -1:
 						try:
 							line_cb(cb_data, stdout_text[stdout_index:i])
-						except BaseException as be:
-							st = extract_stack_trace(be)
+						except:
+							st = traceback.format_exc()
 							log_error("call_lvm: line_cb exception: \n %s" % st)
 						stdout_index = i + 1
 					else:
@ -163,31 +145,12 @@ def call_lvm(command, debug=False, line_cb=None,
 				break
 		except IOError as ioe:
 			log_debug("call_lvm:" + str(ioe))
-			break
+			pass

-	if process.returncode is not None:
-		cfg.lvmdebug.lvm_complete()
-		if debug or (process.returncode != 0 and (process.returncode != 5 and "fullreport" in command)):
-			_debug_c(command, process.returncode, (stdout_text, stderr_text))
-
-		try:
-			report_json = json.loads(stdout_text)
-		except json.decoder.JSONDecodeError:
-			# Some lvm commands don't return json even though we are asking for it to do so.
-			return process.returncode, stdout_text, stderr_text
-
-		error_msg = get_error_msg(report_json)
-		if error_msg:
-			stderr_text += error_msg
-
-		return process.returncode, report_json, stderr_text
-	else:
-		if cfg.run.value == 0:
-			raise SystemExit
-		# We can bail out before the lvm command finished when we get a signal
-		# which is requesting we exit
-		return -errno.EINTR, "", "operation interrupted"
+	if debug or process.returncode != 0:
+		_debug_c(command, process.returncode, (stdout_text, stderr_text))

+	return process.returncode, stdout_text, stderr_text

 # The actual method which gets called to invoke the lvm command, can vary
 # from forking a new process to using lvm shell
@ -202,18 +165,18 @@ def _shell_cfg():
 		_t_call = lvm_shell.call_lvm
 		cfg.SHELL_IN_USE = lvm_shell
 		return True
-	except Exception as e:
+	except Exception:
 		_t_call = call_lvm
 		cfg.SHELL_IN_USE = None
-		log_error("Unable to utilize lvm shell, dropping "
-				  "back to fork & exec\n%s" % extract_stack_trace(e))
+		log_error(traceback.format_exc())
+		log_error("Unable to utilize lvm shell, dropping back to fork & exec")
 		return False


 def set_execution(shell):
 	global _t_call
 	with cmd_lock:
-		# If the user requested lvm shell, and we are currently setup that
+		# If the user requested lvm shell and we are currently setup that
 		# way, just return
 		if cfg.SHELL_IN_USE and shell:
 			return True
@ -237,15 +200,11 @@ def time_wrapper(command, debug=False):

 	with cmd_lock:
 		start = time.time()
-		meta = LvmExecutionMeta(start, 0, command)
-		# Add the partial metadata to flight recorder, so if the command hangs
-		# we will see what it was.
-		cfg.flightrecorder.add(meta)
 		results = _t_call(command, debug)
 		ended = time.time()
 		total_time += (ended - start)
 		total_count += 1
-		meta.completed(ended, *results)
+		cfg.blackbox.add(LvmExecutionMeta(start, ended, command, *results))
 	return results


@ -255,11 +214,44 @@ call = time_wrapper
 # Default cmd
 # Place default arguments for every command here.
 def _dc(cmd, args):
-	c = [cmd, '--nosuffix', '--unbuffered', '--units', 'b']
+	c = [cmd, '--noheading', '--separator', '%s' % SEP, '--nosuffix',
+		'--unbuffered', '--units', 'b']
 	c.extend(args)
 	return c


+def parse(out):
+	rc = []
+
+	for line in out.split('\n'):
+		# This line includes separators, so process them
+		if SEP in line:
+			elem = line.split(SEP)
+			cleaned_elem = []
+			for e in elem:
+				e = e.strip()
+				cleaned_elem.append(e)
+
+			if len(cleaned_elem) > 1:
+				rc.append(cleaned_elem)
+		else:
+			t = line.strip()
+			if len(t) > 0:
+				rc.append(t)
+	return rc
+
+
+def parse_column_names(out, column_names):
+	lines = parse(out)
+	rc = []
+
+	for i in range(0, len(lines)):
+		d = dict(list(zip(column_names, lines[i])))
+		rc.append(d)
+
+	return rc
+
+
 def options_to_cli_args(options):
 	rc = []
 	for k, v in list(dict(options).items()):
@ -324,12 +316,10 @@ def vg_rename(vg_uuid, new_name, rename_options):
 	return call(cmd)


-def vg_remove(vg_id, remove_options):
+def vg_remove(vg_name, remove_options):
 	cmd = ['vgremove']
 	cmd.extend(options_to_cli_args(remove_options))
-	cmd.extend(['-f', vg_id])
-	# https://bugzilla.redhat.com/show_bug.cgi?id=2175220 is preventing us from doing the following
-	# cmd.extend(['-f', "--select", "vg_uuid=%s" % vg_id])
+	cmd.extend(['-f', vg_name])
 	return call(cmd)


@ -623,25 +613,68 @@ def lvm_full_report_json():
 		'--configreport', 'vg', '-o', ','.join(vg_columns),
 		'--configreport', 'lv', '-o', ','.join(lv_columns),
 		'--configreport', 'seg', '-o', ','.join(lv_seg_columns),
-		'--configreport', 'pvseg', '-o', ','.join(pv_seg_columns)
+		'--configreport', 'pvseg', '-o', ','.join(pv_seg_columns),
+		'--reportformat', 'json'
 	])

-	# We are running the fullreport command, we will ask lvm to output the debug
-	# data, so we can have the required information for lvm to debug the fullreport failures.
-	# Note: this is disabled by default and can be enabled with env. var.
-	# LVM_DBUSD_COLLECT_LVM_DEBUG=True
-	fn = cfg.lvmdebug.setup()
-	if fn is not None:
-		add_config_option(cmd, "--config", "log {level=7 file=%s syslog=0}" % fn)
-
 	rc, out, err = call(cmd)
 	# When we have an exported vg the exit code of lvs or fullreport will be 5
 	if rc == 0 or rc == 5:
-		if type(out) != dict:
-			raise LvmBug("lvm likely returned invalid JSON, lvm exit code = %d, output = %s, err= %s" %
-						 (rc, str(out), str(err)))
-		return out
-	raise LvmBug("'fullreport' exited with code '%d'" % rc)
+		# With the current implementation, if we are using the shell then we
+		# are using JSON and JSON is returned back to us as it was parsed to
+		# figure out if we completed OK or not
+		if cfg.SHELL_IN_USE:
+			assert(type(out) == dict)
+			return out
+		else:
+			try:
+				return json.loads(out)
+			except json.decoder.JSONDecodeError as joe:
+				log_error("JSONDecodeError %s, \n JSON=\n%s\n" %
+							(str(joe), out))
+				raise joe
+
+	return None
+
+
+def pv_retrieve_with_segs(device=None):
+	d = []
+	err = ""
+	out = ""
+	rc = 0
+
+	columns = ['pv_name', 'pv_uuid', 'pv_fmt', 'pv_size', 'pv_free',
+				'pv_used', 'dev_size', 'pv_mda_size', 'pv_mda_free',
+				'pv_ba_start', 'pv_ba_size', 'pe_start', 'pv_pe_count',
+				'pv_pe_alloc_count', 'pv_attr', 'pv_tags', 'vg_name',
+				'vg_uuid', 'pvseg_start', 'pvseg_size', 'segtype', 'pv_missing']
+
+	# Lvm has some issues where it returns failure when querying pvs when other
+	# operations are in process, see:
+	# https://bugzilla.redhat.com/show_bug.cgi?id=1274085
+	for i in range(0, 10):
+		cmd = _dc('pvs', ['-o', ','.join(columns)])
+
+		if device:
+			cmd.extend(device)
+
+		rc, out, err = call(cmd)
+
+		if rc == 0:
+			d = parse_column_names(out, columns)
+			break
+		else:
+			time.sleep(0.2)
+			log_debug("LVM Bug workaround, retrying pvs command...")
+
+	if rc != 0:
+		msg = "We were unable to get pvs to return without error after " \
+			"trying 10 times, RC=%d, STDERR=(%s), STDOUT=(%s)" % \
+			(rc, err, out)
+		log_error(msg)
+		raise RuntimeError(msg)
+
+	return d


 def pv_resize(device, size_bytes, create_options):
@ -787,10 +820,6 @@ def activate_deactivate(op, name, activate, control_flags, options):
 		if (1 << 5) & control_flags:
 			cmd.append('--ignoreactivationskip')

-		# Shared locking (Cluster)
-		if (1 << 6) & control_flags:
-			op += 's'
-
 	if activate:
 		op += 'y'
 	else:
@ -802,6 +831,53 @@ def activate_deactivate(op, name, activate, control_flags, options):
 	return call(cmd)


+def vg_retrieve(vg_specific):
+	if vg_specific:
+		assert isinstance(vg_specific, list)
+
+	columns = ['vg_name', 'vg_uuid', 'vg_fmt', 'vg_size', 'vg_free',
+				'vg_sysid', 'vg_extent_size', 'vg_extent_count',
+				'vg_free_count', 'vg_profile', 'max_lv', 'max_pv',
+				'pv_count', 'lv_count', 'snap_count', 'vg_seqno',
+				'vg_mda_count', 'vg_mda_free', 'vg_mda_size',
+				'vg_mda_used_count', 'vg_attr', 'vg_tags']
+
+	cmd = _dc('vgs', ['-o', ','.join(columns)])
+
+	if vg_specific:
+		cmd.extend(vg_specific)
+
+	d = []
+	rc, out, err = call(cmd)
+	if rc == 0:
+		d = parse_column_names(out, columns)
+
+	return d
+
+
+def lv_retrieve_with_segments():
+	columns = ['lv_uuid', 'lv_name', 'lv_path', 'lv_size',
+				'vg_name', 'pool_lv_uuid', 'pool_lv', 'origin_uuid',
+				'origin', 'data_percent',
+				'lv_attr', 'lv_tags', 'vg_uuid', 'lv_active', 'data_lv',
+				'metadata_lv', 'seg_pe_ranges', 'segtype', 'lv_parent',
+				'lv_role', 'lv_layout',
+				'snap_percent', 'metadata_percent', 'copy_percent',
+				'sync_percent', 'lv_metadata_size', 'move_pv', 'move_pv_uuid']
+
+	cmd = _dc('lvs', ['-a', '-o', ','.join(columns)])
+	rc, out, err = call(cmd)
+
+	d = []
+
+	if rc == 0:
+		d = parse_column_names(out, columns)
+
+	return d
+
+
 if __name__ == '__main__':
-	# Leave this for future debug as needed
-	pass
+	pv_data = pv_retrieve_with_segs()
+
+	for p in pv_data:
+		print(str(p))
--- a/daemons/lvmdbusd/fetch.py
+++ b/daemons/lvmdbusd/fetch.py
@ -6,16 +6,16 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with this program. If not, see <http://www.gnu.org/licenses/>.
-import errno

 from .pv import load_pvs
 from .vg import load_vgs
 from .lv import load_lvs
 from . import cfg
-from .utils import MThreadRunner, log_debug, log_error, LvmBug, extract_stack_trace
+from .utils import MThreadRunner, log_debug, log_error
 import threading
 import queue
 import time
+import traceback


 def _main_thread_load(refresh=True, emit_signal=True):
@ -120,125 +120,89 @@ class StateUpdate(object):
 	@staticmethod
 	def update_thread(obj):
 		exception_count = 0
+
 		queued_requests = []
-
-		def set_results(val):
-			nonlocal queued_requests
-			for idx in queued_requests:
-				idx.set_result(val)
-				# Only clear out the requests after we have given them a result
-				# otherwise we can orphan the waiting threads, and they never
-				# wake up if we get an exception
-				queued_requests = []
-
-		def bailing(rv):
-			set_results(rv)
-			try:
-				while True:
-					item = obj.queue.get(False)
-					item.set_result(rv)
-			except queue.Empty:
-				pass
-
-		def _load_args(requests):
-			"""
-			If we have multiple requests in the queue, they might not all have the same options.  If any of the requests
-			have an option set we need to honor it.
-			"""
-			refresh = any([r.refresh for r in requests])
-			emit_signal = any([r.emit_signal for r in requests])
-			cache_refresh = any([r.cache_refresh for r in requests])
-			log = any([r.log for r in requests])
-			need_main_thread = any([r.need_main_thread for r in requests])
-
-			return refresh, emit_signal, cache_refresh, log, need_main_thread
-
-		def _drain_queue(queued, incoming):
-			try:
-				while True:
-					queued.append(incoming.get(block=False))
-			except queue.Empty:
-				pass
-
-		def _handle_error():
-			nonlocal exception_count
-			exception_count += 1
-
-			if exception_count >= 5:
-				log_error("Too many errors in update_thread, exiting daemon")
-				cfg.debug.dump()
-				cfg.flightrecorder.dump()
-				bailing(errno.EFAULT)
-				cfg.exit_daemon()
-			else:
-				# Slow things down when encountering errors
-				cfg.lvmdebug.complete()
-				time.sleep(1)
-
 		while cfg.run.value != 0:
 			# noinspection PyBroadException
 			try:
+				refresh = True
+				emit_signal = True
+				cache_refresh = True
+				log = True
+				need_main_thread = True
+
 				with obj.lock:
 					wait = not obj.deferred
 					obj.deferred = False

 				if len(queued_requests) == 0 and wait:
-					# Note: If we don't have anything for N seconds we will
-					# get a queue.Empty exception raised here
-					queued_requests.append(obj.queue.get(block=True, timeout=cfg.G_LOOP_TMO))
+					queued_requests.append(obj.queue.get(True, 2))

 				# Ok we have one or the deferred queue has some,
-				# check if any others and grab them too
-				_drain_queue(queued_requests, obj.queue)
+				# check if any others
+				try:
+					while True:
+						queued_requests.append(obj.queue.get(False))
+
+				except queue.Empty:
+					pass

 				if len(queued_requests) > 1:
 					log_debug("Processing %d updates!" % len(queued_requests),
 							'bg_black', 'fg_light_green')

-				num_changes = load(*_load_args(queued_requests))
+				# We have what we can, run the update with the needed options
+				for i in queued_requests:
+					if not i.refresh:
+						refresh = False
+					if not i.emit_signal:
+						emit_signal = False
+					if not i.cache_refresh:
+						cache_refresh = False
+					if not i.log:
+						log = False
+					if not i.need_main_thread:
+						need_main_thread = False
+
+				num_changes = load(refresh, emit_signal, cache_refresh, log,
+									need_main_thread)
 				# Update is done, let everyone know!
-				set_results(num_changes)
+				for i in queued_requests:
+					i.set_result(num_changes)
+
+				# Only clear out the requests after we have given them a result
+				# otherwise we can orphan the waiting threads and they never
+				# wake up if we get an exception
+				queued_requests = []

 				# We retrieved OK, clear exception count
 				exception_count = 0

 			except queue.Empty:
 				pass
-			except SystemExit:
-				break
-			except LvmBug as bug:
-				# If a lvm bug occurred, we will dump the lvm debug data if
-				# we have it.
-				cfg.lvmdebug.dump()
-				log_error(str(bug))
-				_handle_error()
 			except Exception as e:
-				log_error("update_thread: \n%s" % extract_stack_trace(e))
-				_handle_error()
-			finally:
-				cfg.lvmdebug.complete()
+				st = traceback.format_exc()
+				log_error("update_thread exception: \n%s" % st)
+				cfg.blackbox.dump()
+				exception_count += 1
+				if exception_count >= 5:
+					for i in queued_requests:
+						i.set_result(e)

-		# Make sure to unblock any that may be waiting before we exit this thread
-		# otherwise they hang forever ...
-		bailing(Exception("update thread exiting"))
-		log_debug("update thread exiting!")
+					log_error("Too many errors in update_thread, exiting daemon")
+					cfg.exit_daemon()
+
+				else:
+					# Slow things down when encountering errors
+					time.sleep(1)

 	def __init__(self):
 		self.lock = threading.RLock()
 		self.queue = queue.Queue()
 		self.deferred = False

-		# Do initial load, with retries.  During error injection testing we can and do fail here.
-		count = 0
-		need_refresh = False  # First attempt we are building from new, any subsequent will be true
-		while count < 5:
-			try:
-				load(refresh=need_refresh, emit_signal=False, need_main_thread=False)
-				break
-			except LvmBug as bug:
-				count += 1
-				need_refresh = True
-				log_error("We encountered an lvm bug on initial load, trying again %s" % str(bug))
+		# Do initial load
+		load(refresh=False, emit_signal=False, need_main_thread=False)

 		self.thread = threading.Thread(target=StateUpdate.update_thread,
 										args=(self,),
--- a/daemons/lvmdbusd/job.py
+++ b/daemons/lvmdbusd/job.py
@ -44,7 +44,7 @@ class WaitingClient(object):
 			self.timer_id = GLib.timeout_add_seconds(
 				tmo, WaitingClient._timeout, self)

-	# The job finished before the timer popped, and we are being notified that
+	# The job finished before the timer popped and we are being notified that
 	# it's done
 	def notify(self):
 		with self.rlock:
@ -71,7 +71,7 @@ class JobState(object):
 		self._stderr = ''
 		self._waiting_clients = []

-		# This is a lvm command that is just taking too long and doesn't
+		# This is an lvm command that is just taking too long and doesn't
 		# support background operation
 		if self._request:
 			# Faking the percentage when we don't have one
@ -138,7 +138,7 @@ class JobState(object):
 		# If a waiting client timer pops before the job is done we will allow
 		# the client to remove themselves from the list.  As we have a lock
 		# here and a lock in the waiting client too, and they can be obtained
-		# in different orders, a deadlock can occur.
+		# in different orders, a dead lock can occur.
 		# As this remove is really optional, we will try to acquire the lock
 		# and remove.  If we are unsuccessful it's not fatal, we just delay
 		# the time when the objects can be garbage collected by python
@ -226,21 +226,3 @@ class Job(AutomatedProperties):
 	def Uuid(self):
 		import uuid
 		return uuid.uuid1()
-
-	# Override the property "getters" implementation for the job interface, so a user can query a job while the queue
-	# is processing items.  Originally all the property get methods were this way, but we changed this in
-	# e53454d6de07de56736303dd2157c3859f6fa848
-
-	# Properties
-	# noinspection PyUnusedLocal
-	@dbus.service.method(dbus_interface=dbus.PROPERTIES_IFACE,
-						 in_signature='ss', out_signature='v')
-	def Get(self, interface_name, property_name):
-		# Note: If we get an exception in this handler we won't know about it,
-		# only the side effect of no returned value!
-		return AutomatedProperties._get_prop(self, interface_name, property_name)
-
-	@dbus.service.method(dbus_interface=dbus.PROPERTIES_IFACE,
-						 in_signature='s', out_signature='a{sv}')
-	def GetAll(self, interface_name):
-		return AutomatedProperties._get_all_prop(self, interface_name)
--- a/daemons/lvmdbusd/loader.py
+++ b/daemons/lvmdbusd/loader.py
@ -42,7 +42,7 @@ def common(retrieve, o_type, search_keys,
 		existing_paths = cfg.om.object_paths_by_type(o_type)

 	for o in objects:
-		# Assume we need to add this one to dbus, unless we are refreshing,
+		# Assume we need to add this one to dbus, unless we are refreshing
 		# and it's already present
 		return_object = True

--- a/daemons/lvmdbusd/lv.py
+++ b/daemons/lvmdbusd/lv.py
@ -10,7 +10,7 @@
 from .automatedproperties import AutomatedProperties

 from . import utils
-from .utils import vg_obj_path_generate, log_error, _handle_execute, LvmBug
+from .utils import vg_obj_path_generate, log_error, _handle_execute
 import dbus
 from . import cmdhandler
 from . import cfg
@ -21,12 +21,14 @@ from .utils import n, n32, d
 from .loader import common
 from .state import State
 from . import background
-from .utils import round_size, mt_remove_dbus_objects, lvm_column_key
+from .utils import round_size, mt_remove_dbus_objects
 from .job import JobState

+import traceback

-# Try and build a key for a LV, so that we sort the LVs with the least dependencies
-# first.  This may be error-prone because of the flexibility LVM
+
+# Try and build a key for a LV, so that we sort the LVs with least dependencies
+# first.  This may be error prone because of the flexibility LVM
 # provides and what you can stack.
 def get_key(i):

@ -65,80 +67,73 @@ def lvs_state_retrieve(selection, cache_refresh=True):
 	if cache_refresh:
 		cfg.db.refresh()

-	try:
-		# When building up the model, it's best to process LVs with the least
-		# dependencies to those that are dependent upon other LVs.  Otherwise, when
-		# we are trying to gather information we could be in a position where we
-		# don't have information available yet.
-		lvs = sorted(cfg.db.fetch_lvs(selection), key=get_key)
+	# When building up the model, it's best to process LVs with the least
+	# dependencies to those that are dependant upon other LVs.  Otherwise, when
+	# we are trying to gather information we could be in a position where we
+	# don't have information available yet.
+	lvs = sorted(cfg.db.fetch_lvs(selection), key=get_key)

-		for l in lvs:
-			if cfg.vdo_support:
-				rc.append(LvStateVdo(
-					l['lv_uuid'], l['lv_name'],
-					l['lv_path'], n(l['lv_size']),
-					l['vg_name'],
-					l['vg_uuid'], l['pool_lv_uuid'],
-					l['pool_lv'], l['origin_uuid'], l['origin'],
-					n32(l['data_percent']), l['lv_attr'],
-					l['lv_tags'], l['lv_active'], l['data_lv'],
-					l['metadata_lv'], l['segtype'], l['lv_role'],
-					l['lv_layout'],
-					n32(l['snap_percent']),
-					n32(l['metadata_percent']),
-					n32(l['copy_percent']),
-					n32(l['sync_percent']),
-					n(l['lv_metadata_size']),
-					l['move_pv'],
-					l['move_pv_uuid'],
-					l['vdo_operating_mode'],
-					l['vdo_compression_state'],
-					l['vdo_index_state'],
-					n(l['vdo_used_size']),
-					d(l['vdo_saving_percent']),
-					l['vdo_compression'],
-					l['vdo_deduplication'],
-					l['vdo_use_metadata_hints'],
-					n32(l['vdo_minimum_io_size']),
-					n(l['vdo_block_map_cache_size']),
-					n32(l['vdo_block_map_era_length']),
-					l['vdo_use_sparse_index'],
-					n(l['vdo_index_memory_size']),
-					n(l['vdo_slab_size']),
-					n32(l['vdo_ack_threads']),
-					n32(l['vdo_bio_threads']),
-					n32(l['vdo_bio_rotation']),
-					n32(l['vdo_cpu_threads']),
-					n32(l['vdo_hash_zone_threads']),
-					n32(l['vdo_logical_threads']),
-					n32(l['vdo_physical_threads']),
-					n32(l['vdo_max_discard']),
-					l['vdo_write_policy'],
-					n32(l['vdo_header_size'])))
-			else:
-				rc.append(LvState(
-					l['lv_uuid'], l['lv_name'],
-					l['lv_path'], n(l['lv_size']),
-					l['vg_name'],
-					l['vg_uuid'], l['pool_lv_uuid'],
-					l['pool_lv'], l['origin_uuid'], l['origin'],
-					n32(l['data_percent']), l['lv_attr'],
-					l['lv_tags'], l['lv_active'], l['data_lv'],
-					l['metadata_lv'], l['segtype'], l['lv_role'],
-					l['lv_layout'],
-					n32(l['snap_percent']),
-					n32(l['metadata_percent']),
-					n32(l['copy_percent']),
-					n32(l['sync_percent']),
-					n(l['lv_metadata_size']),
-					l['move_pv'],
-					l['move_pv_uuid']))
-	except KeyError as ke:
-		# Sometimes lvm omits returning one of the keys we requested.
-		key = ke.args[0]
-		if lvm_column_key(key):
-			raise LvmBug("missing JSON key: '%s'" % key)
-		raise ke
+	for l in lvs:
+		if cfg.vdo_support:
+			rc.append(LvStateVdo(
+				l['lv_uuid'], l['lv_name'],
+				l['lv_path'], n(l['lv_size']),
+				l['vg_name'],
+				l['vg_uuid'], l['pool_lv_uuid'],
+				l['pool_lv'], l['origin_uuid'], l['origin'],
+				n32(l['data_percent']), l['lv_attr'],
+				l['lv_tags'], l['lv_active'], l['data_lv'],
+				l['metadata_lv'], l['segtype'], l['lv_role'],
+				l['lv_layout'],
+				n32(l['snap_percent']),
+				n32(l['metadata_percent']),
+				n32(l['copy_percent']),
+				n32(l['sync_percent']),
+				n(l['lv_metadata_size']),
+				l['move_pv'],
+				l['move_pv_uuid'],
+				l['vdo_operating_mode'],
+				l['vdo_compression_state'],
+				l['vdo_index_state'],
+				n(l['vdo_used_size']),
+				d(l['vdo_saving_percent']),
+				l['vdo_compression'],
+				l['vdo_deduplication'],
+				l['vdo_use_metadata_hints'],
+				n32(l['vdo_minimum_io_size']),
+				n(l['vdo_block_map_cache_size']),
+				n32(l['vdo_block_map_era_length']),
+				l['vdo_use_sparse_index'],
+				n(l['vdo_index_memory_size']),
+				n(l['vdo_slab_size']),
+				n32(l['vdo_ack_threads']),
+				n32(l['vdo_bio_threads']),
+				n32(l['vdo_bio_rotation']),
+				n32(l['vdo_cpu_threads']),
+				n32(l['vdo_hash_zone_threads']),
+				n32(l['vdo_logical_threads']),
+				n32(l['vdo_physical_threads']),
+				n32(l['vdo_max_discard']),
+				l['vdo_write_policy'],
+				n32(l['vdo_header_size'])))
+		else:
+			rc.append(LvState(
+				l['lv_uuid'], l['lv_name'],
+				l['lv_path'], n(l['lv_size']),
+				l['vg_name'],
+				l['vg_uuid'], l['pool_lv_uuid'],
+				l['pool_lv'], l['origin_uuid'], l['origin'],
+				n32(l['data_percent']), l['lv_attr'],
+				l['lv_tags'], l['lv_active'], l['data_lv'],
+				l['metadata_lv'], l['segtype'], l['lv_role'],
+				l['lv_layout'],
+				n32(l['snap_percent']),
+				n32(l['metadata_percent']),
+				n32(l['copy_percent']),
+				n32(l['sync_percent']),
+				n(l['lv_metadata_size']),
+				l['move_pv'],
+				l['move_pv_uuid']))
 	return rc


@ -279,15 +274,15 @@ class LvStateVdo(LvState):
 					MetaDataPercent, CopyPercent, SyncPercent,
 					MetaDataSizeBytes, move_pv, move_pv_uuid,
 					vdo_operating_mode, vdo_compression_state, vdo_index_state,
-					vdo_used_size, vdo_saving_percent, vdo_compression,
-					vdo_deduplication, vdo_use_metadata_hints,
-					vdo_minimum_io_size, vdo_block_map_cache_size,
-					vdo_block_map_era_length, vdo_use_sparse_index,
-					vdo_index_memory_size, vdo_slab_size, vdo_ack_threads,
-					vdo_bio_threads, vdo_bio_rotation, vdo_cpu_threads,
-					vdo_hash_zone_threads, vdo_logical_threads,
-					vdo_physical_threads, vdo_max_discard,
-					vdo_write_policy, vdo_header_size):
+					vdo_used_size,vdo_saving_percent,vdo_compression,
+					vdo_deduplication,vdo_use_metadata_hints,
+					vdo_minimum_io_size,vdo_block_map_cache_size,
+					vdo_block_map_era_length,vdo_use_sparse_index,
+					vdo_index_memory_size,vdo_slab_size,vdo_ack_threads,
+					vdo_bio_threads,vdo_bio_rotation,vdo_cpu_threads,
+					vdo_hash_zone_threads,vdo_logical_threads,
+					vdo_physical_threads,vdo_max_discard,
+					vdo_write_policy,vdo_header_size):
 		super(LvStateVdo, self).__init__(Uuid, Name, Path, SizeBytes,
 					vg_name, vg_uuid, pool_lv_uuid, PoolLv,
 					origin_uuid, OriginLv, DataPercent, Attr, Tags, active,
@ -376,8 +371,8 @@ class LvCommon(AutomatedProperties):
 			return dbus.Struct((self.state.Attr[index],
 				type_map.get(self.state.Attr[index], default)),
 								signature="(ss)")
-		except BaseException as b:
-			st = utils.extract_stack_trace(b)
+		except BaseException:
+			st = traceback.format_exc()
 			log_error("attr_struct: \n%s" % st)
 			return dbus.Struct(('?', 'Unavailable'), signature="(ss)")

@ -600,7 +595,7 @@ class Lv(LvCommon):
 				optional_size = space + 512 - remainder

 		LvCommon.handle_execute(*cmdhandler.vg_lv_snapshot(
-			lv_name, snapshot_options, name, optional_size))
+			lv_name, snapshot_options,name, optional_size))
 		full_name = "%s/%s" % (dbo.vg_name_lookup(), name)
 		return cfg.om.get_object_path_by_lvm_id(full_name)

@ -640,7 +635,7 @@ class Lv(LvCommon):

 		size_change = new_size_bytes - dbo.SizeBytes
 		LvCommon.handle_execute(*cmdhandler.lv_resize(
-			dbo.lvm_id, size_change, pv_dests, resize_options))
+			dbo.lvm_id, size_change,pv_dests, resize_options))
 		return "/"

 	@dbus.service.method(
@ -749,7 +744,7 @@ class Lv(LvCommon):
 		cfg.worker_q.put(r)

 	@staticmethod
-	def _caching_common(method, lv_uuid, lv_name, lv_object_path, cache_options):
+	def _writecache_lv(lv_uuid, lv_name, lv_object_path, cache_options):
 		# Make sure we have a dbus object representing it
 		dbo = LvCommon.validate_dbus_object(lv_uuid, lv_name)

@ -758,7 +753,7 @@ class Lv(LvCommon):

 		if lv_to_cache:
 			fcn = lv_to_cache.lv_full_name()
-			rc, out, err = method(
+			rc, out, err = cmdhandler.lv_writecache_lv(
 				dbo.lv_full_name(), fcn, cache_options)
 			if rc == 0:
 				# When we cache an LV, the cache pool and the lv that is getting
@ -775,14 +770,9 @@ class Lv(LvCommon):
 		else:
 			raise dbus.exceptions.DBusException(
 				LV_INTERFACE, 'LV to cache with object path %s not present!' %
-							  lv_object_path)
+				lv_object_path)
 		return lv_converted

-	@staticmethod
-	def _writecache_lv(lv_uuid, lv_name, lv_object_path, cache_options):
-		return Lv._caching_common(cmdhandler.lv_writecache_lv, lv_uuid,
-									lv_name, lv_object_path, cache_options)
-
 	@dbus.service.method(
 		dbus_interface=LV_INTERFACE,
 		in_signature='oia{sv}',
@ -855,10 +845,10 @@ class LvVdoPool(Lv):
 		cfg.worker_q.put(r)

 	@dbus.service.method(
-		dbus_interface=VDO_POOL_INTERFACE,
-		in_signature='ia{sv}',
-		out_signature='o',
-		async_callbacks=('cb', 'cbe'))
+	dbus_interface=VDO_POOL_INTERFACE,
+	in_signature='ia{sv}',
+	out_signature='o',
+	async_callbacks=('cb', 'cbe'))
 	def DisableCompression(self, tmo, comp_options, cb, cbe):
 		r = RequestEntry(
 			tmo, LvVdoPool._enable_disable_compression,
@ -888,10 +878,10 @@ class LvVdoPool(Lv):
 		cfg.worker_q.put(r)

 	@dbus.service.method(
-		dbus_interface=VDO_POOL_INTERFACE,
-		in_signature='ia{sv}',
-		out_signature='o',
-		async_callbacks=('cb', 'cbe'))
+	dbus_interface=VDO_POOL_INTERFACE,
+	in_signature='ia{sv}',
+	out_signature='o',
+	async_callbacks=('cb', 'cbe'))
 	def DisableDeduplication(self, tmo, dedup_options, cb, cbe):
 		r = RequestEntry(
 			tmo, LvVdoPool._enable_disable_deduplication,
@ -962,8 +952,33 @@ class LvCachePool(Lv):

 	@staticmethod
 	def _cache_lv(lv_uuid, lv_name, lv_object_path, cache_options):
-		return Lv._caching_common(cmdhandler.lv_cache_lv, lv_uuid, lv_name,
-									lv_object_path, cache_options)
+		# Make sure we have a dbus object representing cache pool
+		dbo = LvCommon.validate_dbus_object(lv_uuid, lv_name)
+
+		# Make sure we have dbus object representing lv to cache
+		lv_to_cache = cfg.om.get_object_by_path(lv_object_path)
+
+		if lv_to_cache:
+			fcn = lv_to_cache.lv_full_name()
+			rc, out, err = cmdhandler.lv_cache_lv(
+				dbo.lv_full_name(), fcn, cache_options)
+			if rc == 0:
+				# When we cache an LV, the cache pool and the lv that is getting
+				# cached need to be removed from the object manager and
+				# re-created as their interfaces have changed!
+				mt_remove_dbus_objects((dbo, lv_to_cache))
+				cfg.load()
+
+				lv_converted = cfg.om.get_object_path_by_lvm_id(fcn)
+			else:
+				raise dbus.exceptions.DBusException(
+					LV_INTERFACE,
+					'Exit code %s, stderr = %s' % (str(rc), err))
+		else:
+			raise dbus.exceptions.DBusException(
+				LV_INTERFACE, 'LV to cache with object path %s not present!' %
+				lv_object_path)
+		return lv_converted

 	@dbus.service.method(
 		dbus_interface=CACHE_POOL_INTERFACE,
--- a/daemons/lvmdbusd/lvm_shell_proxy.py.in
+++ b/daemons/lvmdbusd/lvm_shell_proxy.py.in
@ -14,12 +14,12 @@
 import subprocess
 import shlex
 import os
-import pty
+import traceback
 import sys
 import tempfile
 import time
-import threading
 import select
+import copy

 try:
 	import simplejson as json
@ -27,9 +27,9 @@ except ImportError:
 	import json


-import lvmdbusd.cfg as cfg
+from lvmdbusd.cfg import LVM_CMD
 from lvmdbusd.utils import log_debug, log_error, add_no_notify, make_non_block,\
-			read_decoded, extract_stack_trace, LvmBug, get_error_msg
+							read_decoded

 SHELL_PROMPT = "lvm> "

@ -43,11 +43,10 @@ def _quote_arg(arg):

 class LVMShellProxy(object):

-	# Read REPORT FD until we have a complete and valid JSON record or give
-	# up trying to get one.
-	#
-	# Returns stdout, report (JSON), stderr
-	def _read_response(self, no_output=False):
+	# Read until we get prompt back and a result
+	# @param: no_output	Caller expects no output to report FD
+	# Returns stdout, report, stderr (report is JSON!)
+	def _read_until_prompt(self, no_output=False):
 		stdout = ""
 		report = ""
 		stderr = ""
@ -59,27 +58,24 @@ class LVMShellProxy(object):
 		# Try reading from all FDs to prevent one from filling up and causing
 		# a hang.  Keep reading until we get the prompt back and the report
 		# FD does not contain valid JSON
-
-		while keep_reading and cfg.run.value != 0:
+		while keep_reading:
 			try:
 				rd_fd = [
-					self.parent_stdout_fd,
+					self.lvm_shell.stdout.fileno(),
 					self.report_stream.fileno(),
-					self.parent_stderr_fd]
-				ready = select.select(rd_fd, [], [], cfg.G_LOOP_TMO)
+					self.lvm_shell.stderr.fileno()]
+				ready = select.select(rd_fd, [], [], 2)

 				for r in ready[0]:
-					if r == self.parent_stdout_fd:
-						for line in self.parent_stdout.readlines():
-							stdout += line
+					if r == self.lvm_shell.stdout.fileno():
+						stdout += read_decoded(self.lvm_shell.stdout)
 					elif r == self.report_stream.fileno():
 						report += read_decoded(self.report_stream)
-					elif r == self.parent_stderr_fd:
-						for line in self.parent_stderr.readlines():
-							stderr += line
+					elif r == self.lvm_shell.stderr.fileno():
+						stderr += read_decoded(self.lvm_shell.stderr)

 				# Check to see if the lvm process died on us
-				if self.lvm_shell.poll() is not None:
+				if self.lvm_shell.poll():
 					raise Exception(self.lvm_shell.returncode, "%s" % stderr)

 				if stdout.endswith(SHELL_PROMPT):
@ -103,106 +99,91 @@ class LVMShellProxy(object):
 							extra_passes -= 1
 							if extra_passes <= 0:
 								if len(report):
-									raise LvmBug("Invalid json: %s" %
+									raise ValueError("Invalid json: %s" %
 														report)
 								else:
-									raise LvmBug(
+									raise ValueError(
 										"lvm returned no JSON output!")
-			except Exception as e:
-				log_error("While reading from lvm shell we encountered an error %s" % str(e))
-				log_error("stdout= %s\nstderr= %s\n" % (stdout, stderr))
-				if self.lvm_shell.poll() is not None:
-					log_error("Underlying lvm shell process unexpectedly exited: %d" % self.lvm_shell.returncode)
-				else:
-					log_error("Underlying lvm shell process is still present!")
-				raise e

-		if keep_reading and cfg.run.value == 0:
-			# We didn't complete as we are shutting down
-			# Try to clean up lvm shell process
-			log_debug("exiting lvm shell as we are shutting down")
-			self.exit_shell()
-			raise SystemExit
+			except IOError as ioe:
+				log_debug(str(ioe))
+				pass

 		return stdout, report_json, stderr

 	def _write_cmd(self, cmd):
-		self.parent_stdin.write(cmd)
-		self.parent_stdin.flush()
+		cmd_bytes = bytes(cmd, "utf-8")
+		num_written = self.lvm_shell.stdin.write(cmd_bytes)
+		assert (num_written == len(cmd_bytes))
+		self.lvm_shell.stdin.flush()

 	def __init__(self):
+
 		# Create a temp directory
 		tmp_dir = tempfile.mkdtemp(prefix="lvmdbus_")
 		tmp_file = "%s/lvmdbus_report" % (tmp_dir)

-		# Create a lock so that we don't step on each other when we are waiting for a command
-		# to finish and some other request comes in concurrently, like to exit the shell.
-		self.shell_lock = threading.RLock()
+		try:
+			# Lets create fifo for the report output
+			os.mkfifo(tmp_file, 0o600)
+		except FileExistsError:
+			pass

-		# Create a fifo for the report output
-		os.mkfifo(tmp_file, 0o600)
-
-		# Open the fifo for use to read and for lvm child process to write to.
+		# We have to open non-blocking as the other side isn't open until
+		# we actually fork the process.
 		self.report_fd = os.open(tmp_file, os.O_NONBLOCK)
 		self.report_stream = os.fdopen(self.report_fd, 'rb', 0)
-		lvm_fd = os.open(tmp_file, os.O_WRONLY)

-		# Set up the environment for using our own socket for reporting and disable the abort
-		# logic if lvm logs too much, which easily happens when utilizing the lvm shell.
-		local_env = {"LC_ALL": "C", "LVM_REPORT_FD": "%s" % lvm_fd, "LVM_COMMAND_PROFILE": "lvmdbusd",
-					 "LVM_LOG_FILE_MAX_LINES": "0"}
+		# Setup the environment for using our own socket for reporting
+		local_env = copy.deepcopy(os.environ)
+		local_env["LVM_REPORT_FD"] = "32"
+		local_env["LVM_COMMAND_PROFILE"] = "lvmdbusd"

-		# If any env variables contain LVM we will propagate them too
-		for k, v in os.environ.items():
-			if "PATH" in k:
-				local_env[k] = v
-			if "LVM" in k:
-				local_env[k] = v
-
-		self.parent_stdin_fd, child_stdin_fd = pty.openpty()
-		self.parent_stdout_fd, child_stdout_fd = pty.openpty()
-		self.parent_stderr_fd, child_stderr_fd = pty.openpty()
-		self.parent_stdin = os.fdopen(self.parent_stdin_fd, "w")
-		self.parent_stdout = os.fdopen(self.parent_stdout_fd, "r")
-		self.parent_stderr = os.fdopen(self.parent_stderr_fd, "r")
+		# Disable the abort logic if lvm logs too much, which easily happens
+		# when utilizing the lvm shell.
+		local_env["LVM_LOG_FILE_MAX_LINES"] = "0"

 		# run the lvm shell
 		self.lvm_shell = subprocess.Popen(
-			[cfg.LVM_CMD],
-			stdin=child_stdin_fd,
-			stdout=child_stdout_fd, env=local_env,
-			stderr=child_stderr_fd, close_fds=True,
-			pass_fds=(lvm_fd,), shell=False)
+			[LVM_CMD + " 32>%s" % tmp_file],
+			stdin=subprocess.PIPE, stdout=subprocess.PIPE, env=local_env,
+			stderr=subprocess.PIPE, close_fds=True, shell=True)

 		try:
-			make_non_block(self.parent_stdout_fd)
-			make_non_block(self.parent_stderr_fd)
-
-			# Close our copies of the child FDs there were created with the fork, we don't need them open.
-			os.close(lvm_fd)
-			os.close(child_stdin_fd)
-			os.close(child_stdout_fd)
-			os.close(child_stderr_fd)
+			make_non_block(self.lvm_shell.stdout)
+			make_non_block(self.lvm_shell.stderr)

 			# wait for the first prompt
-			log_debug("waiting for first prompt...")
-			errors = self._read_response(no_output=True)[2]
+			errors = self._read_until_prompt(no_output=True)[2]
 			if errors and len(errors):
-				raise LvmBug(errors)
-			log_debug("lvm prompt read!!!")
+				raise RuntimeError(errors)
 		except:
 			raise
 		finally:
-			# These will get deleted when the FD count goes to zero, so we
+			# These will get deleted when the FD count goes to zero so we
 			# can be sure to clean up correctly no matter how we finish
 			os.unlink(tmp_file)
 			os.rmdir(tmp_dir)

-	def _get_last_log(self):
-		# Precondition, lock is held
+	def get_error_msg(self):
+		# We got an error, lets go fetch the error message
 		self._write_cmd('lastlog\n')
-		report_json = self._read_response()[1]
-		return get_error_msg(report_json)
+
+		# read everything from the STDOUT to the next prompt
+		stdout, report_json, stderr = self._read_until_prompt()
+		if 'log' in report_json:
+			error_msg = ""
+			# Walk the entire log array and build an error string
+			for log_entry in report_json['log']:
+				if log_entry['log_type'] == "error":
+					if error_msg:
+						error_msg += ', ' + log_entry['log_message']
+					else:
+						error_msg = log_entry['log_message']
+
+			return error_msg
+
+		return 'No error reason provided! (missing "log" section)'

 	def call_lvm(self, argv, debug=False):
 		rc = 1
@ -220,94 +201,60 @@ class LVMShellProxy(object):
 		cmd += "\n"

 		# run the command by writing it to the shell's STDIN
-		with self.shell_lock:
-			self._write_cmd(cmd)
+		self._write_cmd(cmd)

-			# read everything from the STDOUT to the next prompt
-			stdout, report_json, stderr = self._read_response()
+		# read everything from the STDOUT to the next prompt
+		stdout, report_json, stderr = self._read_until_prompt()

-			# Parse the report to see what happened
-			if 'log' in report_json:
-				ret_code = int(report_json['log'][-1:][0]['log_ret_code'])
-				# If we have an exported vg we get a log_ret_code == 5 when
-				# we do a 'fullreport'
-				# Note: 0 == error
-				if (ret_code == 1) or (ret_code == 5 and argv[0] == 'fullreport'):
-					rc = 0
-				else:
-					# Depending on where lvm fails the command, it may not have anything
-					# to report for "lastlog", so we need to check for a message in the
-					# report json too.
-					error_msg = self._get_last_log()
-					if error_msg is None:
-						error_msg = get_error_msg(report_json)
-						if error_msg is None:
-							error_msg = 'No error reason provided! (missing "log" section)'
+		# Parse the report to see what happened
+		if 'log' in report_json:
+			ret_code = int(report_json['log'][-1:][0]['log_ret_code'])
+			# If we have an exported vg we get a log_ret_code == 5 when
+			# we do a 'fullreport'
+			if (ret_code == 1) or (ret_code == 5 and argv[0] == 'fullreport'):
+				rc = 0
+			else:
+				error_msg = self.get_error_msg()

 		if debug or rc != 0:
-			log_error(("CMD= %s" % cmd))
-			log_error(("EC= %d" % rc))
+			log_error(('CMD: %s' % cmd))
+			log_error(("EC = %d" % rc))
 			log_error(("ERROR_MSG=\n %s\n" % error_msg))

 		return rc, report_json, error_msg

 	def exit_shell(self):
-		with self.shell_lock:
-			try:
-				if self.lvm_shell is not None:
-					self._write_cmd('exit\n')
-					self.lvm_shell.wait(1)
-					self.lvm_shell = None
-			except Exception as _e:
-				log_error("exit_shell: %s" % (str(_e)))
+		try:
+			self._write_cmd('exit\n')
+		except Exception as e:
+			log_error(str(e))

 	def __del__(self):
-		# Note: When we are shutting down the daemon and the main process has already exited
-		# and this gets called we have a limited set of things we can do, like we cannot call
-		# log_error as _common_log is None!!!
-		if self.lvm_shell is not None:
-			try:
-				self.lvm_shell.wait(1)
-			except subprocess.TimeoutExpired:
-				print("lvm shell child process did not exit as instructed, sending SIGTERM")
-				cfg.ignore_sigterm = True
-				self.lvm_shell.terminate()
-				child_exit_code = self.lvm_shell.wait(1)
-				print("lvm shell process exited with %d" % child_exit_code)
+		try:
+			self.lvm_shell.terminate()
+		except:
+			pass


 if __name__ == "__main__":
-	print("USING LVM BINARY: %s " % cfg.LVM_CMD)
-
+	shell = LVMShellProxy()
+	in_line = "start"
 	try:
-		if len(sys.argv) > 1 and sys.argv[1] == "bisect":
-			shell = LVMShellProxy()
-			shell.exit_shell()
-		else:
-			shell = LVMShellProxy()
-			in_line = "start"
-			try:
-				while in_line:
-					in_line = input("lvm> ")
-					if in_line:
-						if in_line == "exit":
-							shell.exit_shell()
-							sys.exit(0)
-						start = time.time()
-						ret, out, err = shell.call_lvm(in_line.split())
-						end = time.time()
+		while in_line:
+			in_line = input("lvm> ")
+			if in_line:
+				start = time.time()
+				ret, out, err = shell.call_lvm(in_line.split())
+				end = time.time()

-						print(("RC: %d" % ret))
-						print(("OUT:\n%s" % out))
-						print(("ERR:\n%s" % err))
+				print(("RC: %d" % ret))
+				print(("OUT:\n%s" % out))
+				print(("ERR:\n%s" % err))

-						print("Command     = %f seconds" % (end - start))
-			except KeyboardInterrupt:
-				pass
-			except EOFError:
-				pass
-	except Exception as e:
-		log_error("main process exiting on exception!\n%s" % extract_stack_trace(e))
-		sys.exit(1)
-
-	sys.exit(0)
+				print("Command     = %f seconds" % (end - start))
+	except KeyboardInterrupt:
+		pass
+	except EOFError:
+		pass
+	except Exception:
+		traceback.print_exc(file=sys.stdout)
--- a/daemons/lvmdbusd/lvmdb.py.in
+++ b/daemons/lvmdbusd/lvmdb.py.in
@ -13,13 +13,14 @@ from collections import OrderedDict

 import pprint as prettyprint
 import os
+import sys

 from lvmdbusd import cmdhandler
-from lvmdbusd.utils import log_debug, log_error, lvm_column_key, LvmBug
+from lvmdbusd.utils import log_debug, log_error


 class DataStore(object):
-	def __init__(self, vdo_support=False):
+	def __init__(self, usejson=True, vdo_support=False):
 		self.pvs = {}
 		self.vgs = {}
 		self.lvs = {}
@ -34,9 +35,41 @@ class DataStore(object):
 		self.lvs_in_vgs = {}
 		self.pvs_in_vgs = {}

+		# self.refresh()
 		self.num_refreshes = 0
+
+		if usejson:
+			self.json = cmdhandler.supports_json()
+		else:
+			self.json = usejson
+
 		self.vdo_support = vdo_support

+	@staticmethod
+	def _insert_record(table, key, record, allowed_multiple):
+		if key in table:
+			existing = table[key]
+
+			for rec_k, rec_v in record.items():
+				if rec_k in allowed_multiple:
+					# This column name allows us to store multiple value for
+					# each type
+					if not isinstance(existing[rec_k], list):
+						existing_value = existing[rec_k]
+						existing[rec_k] = [existing_value, rec_v]
+					else:
+						existing[rec_k].append(rec_v)
+				else:
+					# If something is not expected to have changing values
+					# lets ensure that
+					if existing[rec_k] != rec_v:
+						raise RuntimeError(
+							"existing[%s]=%s != %s" %
+							(rec_k, str(existing[rec_k]),
+							str(rec_v)))
+		else:
+			table[key] = record
+
 	@staticmethod
 	def _pvs_parse_common(c_pvs, c_pvs_in_vgs, c_lookup):
 		for p in c_pvs.values():
@ -51,6 +84,22 @@ class DataStore(object):
 			# Lookup for translating between /dev/<name> and pv uuid
 			c_lookup[p['pv_name']] = p['pv_uuid']

+	@staticmethod
+	def _parse_pvs(_pvs):
+		pvs = sorted(_pvs, key=lambda pk: pk['pv_name'])
+
+		c_pvs = OrderedDict()
+		c_lookup = {}
+		c_pvs_in_vgs = {}
+
+		for p in pvs:
+			DataStore._insert_record(
+				c_pvs, p['pv_uuid'], p,
+				['pvseg_start', 'pvseg_size', 'segtype'])
+
+		DataStore._pvs_parse_common(c_pvs, c_pvs_in_vgs, c_lookup)
+		return c_pvs, c_lookup, c_pvs_in_vgs
+
 	@staticmethod
 	def _parse_pvs_json(_all):

@ -58,7 +107,7 @@ class DataStore(object):
 		c_lookup = {}
 		c_pvs_in_vgs = {}

-		# Each item in the report is a collection of information pertaining
+		# Each item item in the report is a collection of information pertaining
 		# to the vg
 		for r in _all['report']:
 			tmp_pv = []
@ -92,6 +141,28 @@ class DataStore(object):

 		return c_pvs, c_lookup, c_pvs_in_vgs

+	@staticmethod
+	def _parse_vgs(_vgs):
+		vgs = sorted(_vgs, key=lambda vk: vk['vg_uuid'])
+
+		c_vgs = OrderedDict()
+		c_lookup = {}
+
+		for i in vgs:
+			vg_name = i['vg_name']
+
+			# Lvm allows duplicate vg names.  When this occurs, each subsequent
+			# matching VG name will be called vg_name:vg_uuid.  Note: ':' is an
+			# invalid character for lvm VG names
+			if vg_name in c_lookup:
+				vg_name = "%s:%s" % (vg_name, i['vg_uuid'])
+				i['vg_name'] = vg_name
+
+			c_lookup[vg_name] = i['vg_uuid']
+			DataStore._insert_record(c_vgs, i['vg_uuid'], i, [])
+
+		return c_vgs, c_lookup
+
 	@staticmethod
 	def _parse_vgs_json(_all):

@ -156,12 +227,28 @@ class DataStore(object):

 		return c_lvs, c_lvs_in_vgs, c_lvs_hidden, c_lv_full_lookup

+	@staticmethod
+	def _parse_lvs(_lvs):
+		lvs = sorted(_lvs, key=lambda vk: vk['lv_name'])
+
+		c_lvs = OrderedDict()
+		c_lv_full_lookup = OrderedDict()
+
+		for i in lvs:
+			full_name = "%s/%s" % (i['vg_name'], i['lv_name'])
+			c_lv_full_lookup[full_name] = i['lv_uuid']
+			DataStore._insert_record(
+				c_lvs, i['lv_uuid'], i,
+				['seg_pe_ranges', 'segtype'])
+
+		return DataStore._parse_lvs_common(c_lvs, c_lv_full_lookup)
+
 	def _parse_lvs_json(self, _all):

 		c_lvs = OrderedDict()
 		c_lv_full_lookup = {}

-		# Each item in the report is a collection of information pertaining
+		# Each item item in the report is a collection of information pertaining
 		# to the vg
 		for r in _all['report']:
 			# Get the lv data for this VG.
@ -309,12 +396,12 @@ class DataStore(object):
 		:param log  Add debug log entry/exit messages
 		:return: None
 		"""
-		try:
-			self.num_refreshes += 1
-			if log:
-				log_debug("lvmdb - refresh entry")
+		self.num_refreshes += 1
+		if log:
+			log_debug("lvmdb - refresh entry")

-			# Grab everything first then parse it
+		# Grab everything first then parse it
+		if self.json:
 			# Do a single lvm retrieve for everything in json
 			a = cmdhandler.lvm_full_report_json()

@ -322,25 +409,29 @@ class DataStore(object):
 			_vgs, _vgs_lookup = self._parse_vgs_json(a)
 			_lvs, _lvs_in_vgs, _lvs_hidden, _lvs_lookup = self._parse_lvs_json(a)

-			# Set all
-			self.pvs = _pvs
-			self.pv_path_to_uuid = _pvs_lookup
-			self.vg_name_to_uuid = _vgs_lookup
-			self.lv_full_name_to_uuid = _lvs_lookup
+		else:
+			_raw_pvs = cmdhandler.pv_retrieve_with_segs()
+			_raw_vgs = cmdhandler.vg_retrieve(None)
+			_raw_lvs = cmdhandler.lv_retrieve_with_segments()

-			self.vgs = _vgs
-			self.lvs = _lvs
-			self.lvs_in_vgs = _lvs_in_vgs
-			self.pvs_in_vgs = _pvs_in_vgs
-			self.lvs_hidden = _lvs_hidden
+			_pvs, _pvs_lookup, _pvs_in_vgs = self._parse_pvs(_raw_pvs)
+			_vgs, _vgs_lookup = self._parse_vgs(_raw_vgs)
+			_lvs, _lvs_in_vgs, _lvs_hidden, _lvs_lookup = self._parse_lvs(_raw_lvs)

-			# Create lookup table for which LV and segments are on each PV
-			self.pv_lvs, self.lv_pvs = self._parse_pv_in_lvs()
-		except KeyError as ke:
-			key = ke.args[0]
-			if lvm_column_key(key):
-				raise LvmBug("missing JSON key: '%s'" % key)
-			raise ke
+		# Set all
+		self.pvs = _pvs
+		self.pv_path_to_uuid = _pvs_lookup
+		self.vg_name_to_uuid = _vgs_lookup
+		self.lv_full_name_to_uuid = _lvs_lookup
+
+		self.vgs = _vgs
+		self.lvs = _lvs
+		self.lvs_in_vgs = _lvs_in_vgs
+		self.pvs_in_vgs = _pvs_in_vgs
+		self.lvs_hidden = _lvs_hidden
+
+		# Create lookup table for which LV and segments are on each PV
+		self.pv_lvs, self.lv_pvs = self._parse_pv_in_lvs()

 		if log:
 			log_debug("lvmdb - refresh exit")
@ -351,7 +442,7 @@ class DataStore(object):
 		else:
 			rc = []
 			for s in pv_name:
-				# The user could be using a symlink instead of the actual
+				# Ths user could be using a symlink instead of the actual
 				# block device, make sure we are using actual block device file
 				# if the pv name isn't in the lookup
 				if s not in self.pv_path_to_uuid:
@ -360,13 +451,10 @@ class DataStore(object):
 			return rc

 	def pv_missing(self, pv_uuid):
-		# The uuid might not be a PV, default to false
 		if pv_uuid in self.pvs:
 			if self.pvs[pv_uuid]['pv_missing'] == '':
 				return False
-			else:
-				return True
-		return False
+		return True

 	def fetch_vgs(self, vg_name):
 		if not vg_name:
@ -437,11 +525,15 @@ class DataStore(object):


 if __name__ == "__main__":
-	os.environ["LC_ALL"] = "C"
-	os.environ["LVM_COMMAND_PROFILE"] = "lvmdbusd"
 	pp = prettyprint.PrettyPrinter(indent=4)

-	ds = DataStore()
+	use_json = False
+
+	if len(sys.argv) != 1:
+		print(len(sys.argv))
+		use_json = True
+
+	ds = DataStore(use_json)
 	ds.refresh()

 	print("PVS")
--- a/daemons/lvmdbusd/main.py
+++ b/daemons/lvmdbusd/main.py
@ -22,13 +22,14 @@ from . import lvmdb
 from gi.repository import GLib
 from .fetch import StateUpdate
 from .manager import Manager
+import traceback
 import queue
 from . import udevwatch
-from .utils import log_debug, log_error, log_msg, DebugMessages
+from .utils import log_debug, log_error
 import argparse
 import os
 import sys
-from .cmdhandler import LvmFlightRecorder, supports_vdo, supports_json
+from .cmdhandler import LvmFlightRecorder, supports_vdo
 from .request import RequestEntry


@ -41,7 +42,7 @@ def process_request():
 	while cfg.run.value != 0:
 		# noinspection PyBroadException
 		try:
-			req = cfg.worker_q.get(True, cfg.G_LOOP_TMO)
+			req = cfg.worker_q.get(True, 5)
 			log_debug(
 				"Method start: %s with args %s (callback = %s)" %
 				(str(req.method), str(req.arguments), str(req.cb)))
@ -49,15 +50,12 @@ def process_request():
 			log_debug("Method complete: %s" % str(req.method))
 		except queue.Empty:
 			pass
-		except SystemExit:
-			break
-		except Exception as e:
-			st = utils.extract_stack_trace(e)
+		except Exception:
+			st = traceback.format_exc()
 			utils.log_error("process_request exception: \n%s" % st)
-	log_debug("process_request thread exiting!")


-def check_fr_size(value):
+def check_bb_size(value):
 	v = int(value)
 	if v < 0:
 		raise argparse.ArgumentTypeError(
@ -67,7 +65,7 @@ def check_fr_size(value):

 def install_signal_handlers():
 	# Because of the glib main loop stuff the python signal handler code is
-	# apparently not usable, and we need to use the glib calls instead
+	# apparently not usable and we need to use the glib calls instead
 	signal_add = None

 	if hasattr(GLib, 'unix_signal_add'):
@ -79,13 +77,13 @@ def install_signal_handlers():
 		signal_add(GLib.PRIORITY_HIGH, signal.SIGHUP, utils.handler, signal.SIGHUP)
 		signal_add(GLib.PRIORITY_HIGH, signal.SIGINT, utils.handler, signal.SIGINT)
 		signal_add(GLib.PRIORITY_HIGH, signal.SIGUSR1, utils.handler, signal.SIGUSR1)
-		signal_add(GLib.PRIORITY_HIGH, signal.SIGUSR2, utils.handler, signal.SIGUSR2)
-		signal_add(GLib.PRIORITY_HIGH, signal.SIGTERM, utils.handler, signal.SIGTERM)
 	else:
 		log_error("GLib.unix_signal_[add|add_full] are NOT available!")


-def process_args():
+def main():
+	start = time.time()
+	# Add simple command line handling
 	parser = argparse.ArgumentParser()
 	parser.add_argument(
 		"--udev", action='store_true',
@ -106,137 +104,101 @@ def process_args():
 		default=False,
 		dest='use_lvm_shell')
 	parser.add_argument(
-		"--frsize",
-		help="Size of the flight recorder (num. entries), 0 to disable (signal 12 to dump)",
+		"--blackboxsize",
+		help="Size of the black box flight recorder, 0 to disable",
 		default=10,
-		type=check_fr_size,
-		dest='fr_size')
+		type=check_bb_size,
+		dest='bb_size')

-	args = parser.parse_args()
+	use_session = os.getenv('LVMDBUSD_USE_SESSION', False)

-	if not args.use_json:
-		log_error("Daemon no longer supports lvm without JSON support, exiting!")
-		sys.exit(1)
-	else:
-		if not supports_json():
-			log_error("Un-supported version of LVM, daemon requires JSON output, exiting!")
-			sys.exit(1)
-
-	# Add udev watching
-	if args.use_udev:
-		# Make sure this msg ends up in the journal, so we know
-		log_msg('The --udev option is no longer supported,'
-				'the daemon always uses a combination of dbus notify from lvm tools and udev')
-
-	return args
-
-
-def running_under_systemd():
-	""""
-	Checks to see if we are running under systemd, by checking daemon fd 0, 1
-	systemd sets stdin to /dev/null and 1 & 2 are a socket
-	"""
-	base = "/proc/self/fd"
-	stdout = os.readlink("%s/0" % base)
-	if stdout == "/dev/null":
-		stdout = os.readlink("%s/1" % base)
-		if "socket" in stdout:
-			return True
-	return False
-
-
-def main():
-	start = time.time()
-	use_session = os.getenv('LVM_DBUSD_USE_SESSION', False)
-
-	# Ensure that we get consistent output for parsing stdout/stderr and that we
-	# are using the lvmdbusd profile.
+	# Ensure that we get consistent output for parsing stdout/stderr
 	os.environ["LC_ALL"] = "C"
-	os.environ["LVM_COMMAND_PROFILE"] = "lvmdbusd"
-
-	# Indicator if we are running under systemd
-	cfg.systemd = running_under_systemd()
-
-	# Add simple command line handling
-	cfg.args = process_args()

+	cfg.args = parser.parse_args()
 	cfg.create_request_entry = RequestEntry

 	# We create a flight recorder in cmdhandler too, but we replace it here
 	# as the user may be specifying a different size.  The default one in
 	# cmdhandler is for when we are running other code with a different main.
-	cfg.flightrecorder = LvmFlightRecorder(cfg.args.fr_size)
+	cfg.blackbox = LvmFlightRecorder(cfg.args.bb_size)

-	# Create a circular buffer for debug logs
-	cfg.debug = DebugMessages()
-
-	log_debug("Using lvm binary: %s" % cfg.LVM_CMD)
+	if cfg.args.use_lvm_shell and not cfg.args.use_json:
+		log_error("You cannot specify --lvmshell and --nojson")
+		sys.exit(1)

 	# We will dynamically add interfaces which support vdo if it
 	# exists.
 	cfg.vdo_support = supports_vdo()

+	if cfg.vdo_support and not cfg.args.use_json:
+		log_error("You cannot specify --nojson when lvm has VDO support")
+		sys.exit(1)
+
 	# List of threads that we start up
 	thread_list = []

 	install_signal_handlers()

-	with utils.LockFile(cfg.LOCK_FILE):
-		dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
-		dbus.mainloop.glib.threads_init()
+	dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
+	dbus.mainloop.glib.threads_init()

-		cmdhandler.set_execution(cfg.args.use_lvm_shell)
+	cmdhandler.set_execution(cfg.args.use_lvm_shell)

-		if use_session:
-			cfg.bus = dbus.SessionBus()
-		else:
-			cfg.bus = dbus.SystemBus()
-		# The base name variable needs to exist for things to work.
-		# noinspection PyUnusedLocal
-		base_name = dbus.service.BusName(BUS_NAME, cfg.bus)
-		cfg.om = Lvm(BASE_OBJ_PATH)
-		cfg.om.register_object(Manager(MANAGER_OBJ_PATH))
+	if use_session:
+		cfg.bus = dbus.SessionBus()
+	else:
+		cfg.bus = dbus.SystemBus()
+	# The base name variable needs to exist for things to work.
+	# noinspection PyUnusedLocal
+	base_name = dbus.service.BusName(BUS_NAME, cfg.bus)
+	cfg.om = Lvm(BASE_OBJ_PATH)
+	cfg.om.register_object(Manager(MANAGER_OBJ_PATH))

-		cfg.db = lvmdb.DataStore(vdo_support=cfg.vdo_support)
+	cfg.db = lvmdb.DataStore(cfg.args.use_json, cfg.vdo_support)

-		# Using a thread to process requests, we cannot hang the dbus library
-		# thread that is handling the dbus interface
-		thread_list.append(
-			threading.Thread(target=process_request, name='process_request'))
+	# Using a thread to process requests, we cannot hang the dbus library
+	# thread that is handling the dbus interface
+	thread_list.append(
+		threading.Thread(target=process_request, name='process_request'))

-		# Have a single thread handling updating lvm and the dbus model, so we
-		# don't have multiple threads doing this as the same time
-		updater = StateUpdate()
-		thread_list.append(updater.thread)
+	# Have a single thread handling updating lvm and the dbus model so we
+	# don't have multiple threads doing this as the same time
+	updater = StateUpdate()
+	thread_list.append(updater.thread)

-		cfg.load = updater.load
+	cfg.load = updater.load

-		cfg.loop = GLib.MainLoop()
+	cfg.loop = GLib.MainLoop()

-		for thread in thread_list:
-			thread.daemon = True
-			thread.start()
+	for thread in thread_list:
+		thread.damon = True
+		thread.start()

-		# In all cases we are going to monitor for udev until we get an
-		# ExternalEvent.  In the case where we get an external event and the user
-		# didn't specify --udev we will stop monitoring udev
-		udevwatch.add()
+	# Add udev watching
+	if cfg.args.use_udev:
+		log_debug('Utilizing udev to trigger updates')

-		end = time.time()
-		log_debug(
-			'Service ready! total time= %.4f, lvm time= %.4f count= %d' %
-			(end - start, cmdhandler.total_time, cmdhandler.total_count),
-			'bg_black', 'fg_light_green')
+	# In all cases we are going to monitor for udev until we get an
+	# ExternalEvent.  In the case where we get an external event and the user
+	# didn't specify --udev we will stop monitoring udev
+	udevwatch.add()

-		try:
-			if cfg.run.value != 0:
-				cfg.loop.run()
-				udevwatch.remove()
+	end = time.time()
+	log_debug(
+		'Service ready! total time= %.4f, lvm time= %.4f count= %d' %
+		(end - start, cmdhandler.total_time, cmdhandler.total_count),
+		'bg_black', 'fg_light_green')

-				for thread in thread_list:
-					thread.join()
-		except KeyboardInterrupt:
-			# If we are unable to register signal handler, we will end up here when
-			# the service gets a ^C or a kill -2 <parent pid>
-			utils.handler(signal.SIGINT)
+	try:
+		if cfg.run.value != 0:
+			cfg.loop.run()
+			udevwatch.remove()
+
+			for thread in thread_list:
+				thread.join()
+	except KeyboardInterrupt:
+		# If we are unable to register signal handler, we will end up here when
+		# the service gets a ^C or a kill -2 <parent pid>
+		utils.handler(signal.SIGINT)
 	return 0
--- a/daemons/lvmdbusd/manager.py
+++ b/daemons/lvmdbusd/manager.py
@ -137,8 +137,7 @@ class Manager(AutomatedProperties):
 		"""
 		Dump the flight recorder to syslog
 		"""
-		cfg.debug.dump()
-		cfg.flightrecorder.dump()
+		cfg.blackbox.dump()

 	@staticmethod
 	def _lookup_by_lvm_id(key):
@ -195,7 +194,6 @@ class Manager(AutomatedProperties):
 	def _external_event(command):
 		utils.log_debug("Processing _external_event= %s" % command,
 							'bg_black', 'fg_orange')
-		cfg.got_external_event = True
 		cfg.load()

 	@dbus.service.method(
@ -203,6 +201,14 @@ class Manager(AutomatedProperties):
 		in_signature='s', out_signature='i')
 	def ExternalEvent(self, command):
 		utils.log_debug("ExternalEvent %s" % command)
+		# If a user didn't explicitly specify udev, we will turn it off now.
+		if not cfg.args.use_udev:
+			if udevwatch.remove():
+				utils.log_debug("ExternalEvent received, disabling "
+								"udev monitoring")
+				# We are dependent on external events now to stay current!
+				cfg.got_external_event = True
+
 		r = RequestEntry(
 			-1, Manager._external_event, (command,), None, None, False)
 		cfg.worker_q.put(r)
--- a/daemons/lvmdbusd/objectmanager.py
+++ b/daemons/lvmdbusd/objectmanager.py
@ -9,11 +9,12 @@

 import sys
 import threading
+import traceback
 import dbus
 import os
 import copy
 from . import cfg
-from .utils import log_debug, log_error, extract_stack_trace
+from .utils import log_debug, pv_obj_path_generate, log_error
 from .automatedproperties import AutomatedProperties


@ -39,8 +40,8 @@ class ObjectManager(AutomatedProperties):
 				for k, v in list(obj._objects.items()):
 					path, props = v[0].emit_data()
 					rc[path] = props
-			except Exception as e:
-				log_error("_get_managed_objects exception, bailing: \n%s" % extract_stack_trace(e))
+			except Exception:
+				traceback.print_exc(file=sys.stdout)
 				sys.exit(1)
 			return rc

@ -52,6 +53,15 @@ class ObjectManager(AutomatedProperties):
 									(self, ), cb, cbe, False)
 		cfg.worker_q.put(r)

+	def locked(self):
+		"""
+		If some external code need to run across a number of different
+		calls into ObjectManager while blocking others they can use this method
+		to lock others out.
+		:return:
+		"""
+		return ObjectManagerLock(self.rlock)
+
 	@dbus.service.signal(
 		dbus_interface="org.freedesktop.DBus.ObjectManager",
 		signature='oa{sa{sv}}')
@ -159,8 +169,8 @@ class ObjectManager(AutomatedProperties):
 			# print('Registering object path %s for %s' %
 			# (path, dbus_object.lvm_id))

-			# We want fast access to the object by a number of different ways,
-			# so we use multiple hashes with different keys
+			# We want fast access to the object by a number of different ways
+			# so we use multiple hashs with different keys
 			self._lookup_add(dbus_object, path, dbus_object.lvm_id,
 				dbus_object.Uuid)

@ -209,7 +219,7 @@ class ObjectManager(AutomatedProperties):

 	def get_object_by_lvm_id(self, lvm_id):
 		"""
-		Given a lvm identifier, return the object registered for it
+		Given an lvm identifier, return the object registered for it
 		:param lvm_id: The lvm identifier
 		"""
 		with self.rlock:
@ -220,7 +230,7 @@ class ObjectManager(AutomatedProperties):

 	def get_object_path_by_lvm_id(self, lvm_id):
 		"""
-		Given a lvm identifier, return the object path for it
+		Given an lvm identifier, return the object path for it
 		:param lvm_id: The lvm identifier
 		:return: Object path or '/' if not found
 		"""
@ -277,7 +287,7 @@ class ObjectManager(AutomatedProperties):
 		register it with the object manager for the specified uuid & lvm_id.
 		Note: If path create is not None, uuid and lvm_id cannot be equal
 		:param uuid: The uuid for the lvm object we are searching for
-		:param lvm_id: The lvm name (e.g. pv device path, vg name, lv full name)
+		:param lvm_id: The lvm name (eg. pv device path, vg name, lv full name)
 		:param path_create: If not None, create the path using this function if
 				we fail to find the object by uuid or lvm_id.
 		:returns None if lvm asset not found and path_create == None otherwise
@ -295,17 +305,18 @@ class ObjectManager(AutomatedProperties):
 			if uuid == lvm_id:
 				path = self._id_lookup(lvm_id)
 			else:
-				# We have an uuid and a lvm_id we can do sanity checks to ensure
+				# We have a uuid and a lvm_id we can do sanity checks to ensure
 				# that they are consistent

-				# If a PV is missing its device path is '[unknown]' or some
+				# If a PV is missing it's device path is '[unknown]' or some
 				# other text derivation of unknown.  When we find that a PV is
-				# missing we will clear out the lvm_id as it's not unique
-				# and thus not useful and harmful for lookups.
-				if cfg.db.pv_missing(uuid):
+				# missing we will clear out the lvm_id as it's likely not unique
+				# and thus not useful and potentially harmful for lookups.
+				if path_create == pv_obj_path_generate and \
+						cfg.db.pv_missing(uuid):
 					lvm_id = None

-				# Let's check for the uuid first
+				# Lets check for the uuid first
 				path = self._id_lookup(uuid)
 				if path:
 					# Ensure table lookups are correct
@ -326,3 +337,29 @@ class ObjectManager(AutomatedProperties):
 			#	(uuid, lvm_id, str(path_create), path))

 			return path
+
+
+class ObjectManagerLock(object):
+	"""
+	The sole purpose of this class is to allow other code the ability to
+	lock the object manager using a `with` statement, eg.
+
+	with cfg.om.locked():
+		# Do stuff with object manager
+
+	This will ensure that the lock is always released (assuming this is done
+	correctly)
+	"""
+
+	def __init__(self, recursive_lock):
+		self._lock = recursive_lock
+
+	def __enter__(self):
+		# Acquire lock
+		self._lock.acquire()
+
+	# noinspection PyUnusedLocal
+	def __exit__(self, e_type, e_value, e_traceback):
+		# Release lock
+		self._lock.release()
+		self._lock = None
--- a/daemons/lvmdbusd/pv.py
+++ b/daemons/lvmdbusd/pv.py
@ -14,11 +14,11 @@ import dbus
 from .cfg import PV_INTERFACE
 from . import cmdhandler
 from .utils import vg_obj_path_generate, n, pv_obj_path_generate, \
-	lv_object_path_method, _handle_execute, lvm_column_key
+	lv_object_path_method, _handle_execute
 from .loader import common
 from .request import RequestEntry
 from .state import State
-from .utils import round_size, LvmBug
+from .utils import round_size


 # noinspection PyUnusedLocal
@ -28,23 +28,16 @@ def pvs_state_retrieve(selection, cache_refresh=True):
 	if cache_refresh:
 		cfg.db.refresh()

-	try:
-		for p in cfg.db.fetch_pvs(selection):
-			rc.append(
-				PvState(
-					p["pv_name"], p["pv_uuid"], p["pv_name"],
-					p["pv_fmt"], n(p["pv_size"]), n(p["pv_free"]),
-					n(p["pv_used"]), n(p["dev_size"]), n(p["pv_mda_size"]),
-					n(p["pv_mda_free"]), int(p["pv_ba_start"]),
-					n(p["pv_ba_size"]), n(p["pe_start"]),
-					int(p["pv_pe_count"]), int(p["pv_pe_alloc_count"]),
-					p["pv_attr"], p["pv_tags"], p["vg_name"], p["vg_uuid"]))
-	except KeyError as ke:
-		# Sometimes lvm omits returning one of the keys we requested.
-		key = ke.args[0]
-		if lvm_column_key(key):
-			raise LvmBug("missing JSON key: '%s'" % key)
-		raise ke
+	for p in cfg.db.fetch_pvs(selection):
+		rc.append(
+			PvState(
+				p["pv_name"], p["pv_uuid"], p["pv_name"],
+				p["pv_fmt"], n(p["pv_size"]), n(p["pv_free"]),
+				n(p["pv_used"]), n(p["dev_size"]), n(p["pv_mda_size"]),
+				n(p["pv_mda_free"]), int(p["pv_ba_start"]),
+				n(p["pv_ba_size"]), n(p["pe_start"]),
+				int(p["pv_pe_count"]), int(p["pv_pe_alloc_count"]),
+				p["pv_attr"], p["pv_tags"], p["vg_name"], p["vg_uuid"]))
 	return rc


--- a/daemons/lvmdbusd/request.py
+++ b/daemons/lvmdbusd/request.py
@ -7,13 +7,13 @@
 # You should have received a copy of the GNU General Public License
 # along with this program. If not, see <http://www.gnu.org/licenses/>.

-import dbus
 import threading
 # noinspection PyUnresolvedReferences
 from gi.repository import GLib
 from .job import Job
 from . import cfg
-from .utils import log_error, mt_async_call, extract_stack_trace
+import traceback
+from .utils import log_error, mt_async_call


 class RequestEntry(object):
@ -71,23 +71,13 @@ class RequestEntry(object):
 		try:
 			result = self.method(*self.arguments)
 			self.register_result(result)
-		except SystemExit as se:
-			self.register_error(-1, str(se), se)
-			raise se
-		except dbus.exceptions.DBusException as dbe:
-			# This is an expected error path when something goes awry that
-			# we handled
-			self.register_error(-1, str(dbe), dbe)
 		except Exception as e:
 			# Use the request entry to return the result as the client may
 			# have gotten a job by the time we hit an error
-			# Lets set the exception text as the error message and log the
-			# exception in the journal for figuring out what went wrong.
-			cfg.debug.dump()
-			cfg.flightrecorder.dump()
-			tb = extract_stack_trace(e)
-			log_error("While processing %s: we encountered\n%s" % (str(self.method), tb))
-			log_error("Error returned to client: %s" % str(e))
+			# Lets get the stacktrace and set that to the error message
+			st = traceback.format_exc()
+			cfg.blackbox.dump()
+			log_error("Exception returned to client: \n%s" % st)
 			self.register_error(-1, str(e), e)

 	def is_done(self):
@ -141,7 +131,7 @@ class RequestEntry(object):

 						mt_async_call(self.cb_error, error_exception)
 			else:
-				# We have a job, and it's complete, indicate that it's done.
+				# We have a job and it's complete, indicate that it's done.
 				self._job.Complete = True
 				self._job = None

--- a/daemons/lvmdbusd/udevwatch.py
+++ b/daemons/lvmdbusd/udevwatch.py
@ -52,30 +52,20 @@ def filter_event(action, device):
 	# when appropriate.
 	refresh = False

-	# Ignore everything but change
-	if action != 'change':
-		return
-
 	if 'ID_FS_TYPE' in device:
 		fs_type_new = device['ID_FS_TYPE']
+
 		if 'LVM' in fs_type_new:
-			# If we get a lvm related udev event for a block device
-			# we don't know about, it's either a pvcreate which we
-			# would handle with the dbus notification or something
-			# copied a pv signature onto a block device, this is
-			# required to catch the latter.
-			if not cfg.om.get_object_by_lvm_id(device['DEVNAME']):
-				refresh = True
+			refresh = True
 		elif fs_type_new == '':
 			# Check to see if the device was one we knew about
 			if 'DEVNAME' in device:
-				if cfg.om.get_object_by_lvm_id(device['DEVNAME']):
+				found = cfg.om.get_object_by_lvm_id(device['DEVNAME'])
+				if found:
 					refresh = True
-	else:
-		# This handles the wipefs -a path
-		if not refresh and 'DEVNAME' in device:
-			if cfg.om.get_object_by_lvm_id(device['DEVNAME']):
-				refresh = True
+
+	if 'DM_LV_NAME' in device:
+		refresh = True

 	if refresh:
 		udev_add()
--- a/daemons/lvmdbusd/utils.py
+++ b/daemons/lvmdbusd/utils.py
@ -10,14 +10,11 @@
 import xml.etree.ElementTree as Et
 import sys
 import inspect
-import collections
-import errno
-import fcntl
+import ctypes
 import os
-import stat
 import string
 import datetime
-import tempfile
+from fcntl import fcntl, F_GETFL, F_SETFL

 import dbus
 from lvmdbusd import cfg
@ -89,7 +86,7 @@ def init_class_from_arguments(
 			nt = k

 			# If the current attribute has a value, but the incoming does
-			# not, don't overwrite it.  Otherwise, the default values on the
+			# not, don't overwrite it.  Otherwise the default values on the
 			# property decorator don't work as expected.
 			cur = getattr(obj_instance, nt, v)

@ -109,7 +106,7 @@ def init_class_from_arguments(

 def get_properties(f):
 	"""
-	Walks through an object instance, or it's parent class(es) and determines
+	Walks through an object instance or it's parent class(es) and determines
 	which attributes are properties and if they were created to be used for
 	dbus.
 	:param f:   Object to inspect
@ -193,7 +190,7 @@ def add_properties(xml, interface, props):
 				interface_element = c
 				break

-		# Interface is not present, lets create it, so we have something to
+		# Interface is not present, lets create it so we have something to
 		# attach the properties too
 		if interface_element is None:
 			interface_element = Et.Element("interface", name=interface)
@ -283,64 +280,25 @@ def parse_tags(tags):
 	return dbus.Array([], signature='s')


-class DebugMessages(object):
+def _common_log(msg, *attributes):
+	cfg.stdout_lock.acquire()
+	tid = ctypes.CDLL('libc.so.6').syscall(186)

-	def __init__(self, size=5000):
-		self.queue = collections.deque(maxlen=size)
-		self.lock = threading.RLock()
-
-	def add(self, message):
-		with self.lock:
-			self.queue.append(message)
-
-	def dump(self):
-		if cfg.args and not cfg.args.debug:
-			with self.lock:
-				if len(self.queue):
-					log_error("LVM dbus debug messages START last (%d max) messages" % self.queue.maxlen)
-					for m in self.queue:
-						print(m)
-					log_error("LVM dbus debug messages END")
-					self.queue.clear()
-
-
-def _get_tid():
-	try:
-		# Only 3.8 and later have this
-		return threading.get_native_id()
-	except:
-		return -1
-
-
-def _format_log_entry(msg):
-	tid = _get_tid()
-
-	if not cfg.systemd and STDOUT_TTY:
+	if STDOUT_TTY:
 		msg = "%s: %d:%d - %s" % \
 			(datetime.datetime.now().strftime("%b %d %H:%M:%S.%f"),
 			os.getpid(), tid, msg)

 	else:
-		if cfg.systemd:
-			# Systemd already puts the daemon pid in the log, we'll just add the tid
-			msg = "[%d]: %s" % (tid, msg)
-		else:
-			msg = "[%d:%d]: %s" % (os.getpid(), tid, msg)
-	return msg
-
-
-def _common_log(msg, *attributes):
-	msg = _format_log_entry(msg)
-
-	cfg.stdout_lock.acquire()
+		msg = "%d:%d - %s" % (os.getpid(), tid, msg)

 	if STDOUT_TTY and attributes:
 		print(color(msg, *attributes))
 	else:
 		print(msg)

-	sys.stdout.flush()
 	cfg.stdout_lock.release()
+	sys.stdout.flush()


 # Serializes access to stdout to prevent interleaved output
@ -349,19 +307,12 @@ def _common_log(msg, *attributes):
 def log_debug(msg, *attributes):
 	if cfg.args and cfg.args.debug:
 		_common_log(msg, *attributes)
-	else:
-		if cfg.debug:
-			cfg.debug.add(_format_log_entry(msg))


 def log_error(msg, *attributes):
 	_common_log(msg, *attributes)


-def log_msg(msg, *attributes):
-	_common_log(msg, *attributes)
-
-
 def dump_threads_stackframe():
 	ident_to_name = {}

@ -389,32 +340,15 @@ def dump_threads_stackframe():
 # noinspection PyUnusedLocal
 def handler(signum):
 	try:
-		# signal 10
 		if signum == signal.SIGUSR1:
-			cfg.debug.dump()
 			dump_threads_stackframe()
-		# signal 12
-		elif signum == signal.SIGUSR2:
-			cfg.debug.dump()
-			cfg.flightrecorder.dump()
 		else:
-			# If we are getting a SIGTERM, and we sent one to the lvm shell we
-			# will ignore this and keep running.
-			if signum == signal.SIGTERM and cfg.ignore_sigterm:
-				# Clear the flag, so we will exit on SIGTERM if we didn't
-				# send it.
-				cfg.ignore_sigterm = False
-				return True
-
-			# If lvm shell is in use, tell it to exit
-			if cfg.SHELL_IN_USE is not None:
-				cfg.SHELL_IN_USE.exit_shell()
 			cfg.run.value = 0
-			log_error('Exiting daemon with signal %d' % signum)
+			log_debug('Exiting daemon with signal %d' % signum)
 			if cfg.loop is not None:
 				cfg.loop.quit()
-	except BaseException as be:
-		st = extract_stack_trace(be)
+	except:
+		st = traceback.format_exc()
 		log_error("signal handler: exception (logged, not reported!) \n %s" % st)

 	# It's important we report that we handled the exception for the exception
@ -543,7 +477,7 @@ def round_size(size_bytes):
 	return size_bytes + bs - remainder


-_ALLOWABLE_CH = string.ascii_letters + string.digits + '#+-.:=@_/%'
+_ALLOWABLE_CH = string.ascii_letters + string.digits + '#+-.:=@_\/%'
 _ALLOWABLE_CH_SET = set(_ALLOWABLE_CH)

 _ALLOWABLE_VG_LV_CH = string.ascii_letters + string.digits + '.-_+'
@ -638,23 +572,6 @@ def validate_tag(interface, tag):
 			% (tag, _ALLOWABLE_TAG_CH))


-def add_config_option(cmdline, key, value):
-	if 'help' in cmdline:
-		return cmdline
-
-	if key in cmdline:
-		for i, arg in enumerate(cmdline):
-			if arg == key:
-				if len(cmdline) <= i + 1:
-					raise dbus.exceptions.DBusException("Missing value for --config option.")
-				cmdline[i + 1] += " %s" % value
-				break
-	else:
-		cmdline.extend([key, value])
-
-	return cmdline
-
-
 def add_no_notify(cmdline):
 	"""
 	Given a command line to execute we will see if `--config` is present, if it
@ -666,18 +583,27 @@ def add_no_notify(cmdline):
 	:rtype: list
 	"""

-	# Only after we have seen an external event will we disable lvm from sending
+	# Only after we have seen an external event will be disable lvm from sending
 	# us one when we call lvm
-	rv = cmdline
 	if cfg.got_external_event:
-		rv = add_config_option(rv, "--config", "global/notify_dbus=0")
+		if 'help' in cmdline:
+			return cmdline

-	return rv
+		if '--config' in cmdline:
+			for i, arg in enumerate(cmdline):
+				if arg == '--config':
+					if len(cmdline) <= i+1:
+						raise dbus.exceptions.DBusException("Missing value for --config option.")
+					cmdline[i+1] += " global/notify_dbus=0"
+					break
+		else:
+			cmdline.extend(['--config', 'global/notify_dbus=0'])
+	return cmdline


 # The methods below which start with mt_* are used to execute the desired code
-# on the main thread of execution to alleviate any issues the dbus-python
-# library with regard to multithreaded access.  Essentially, we are trying to
+# on the the main thread of execution to alleviate any issues the dbus-python
+# library with regards to multi-threaded access.  Essentially, we are trying to
 # ensure all dbus library interaction is done from the same thread!


@ -691,8 +617,9 @@ def _async_handler(call_back, parameters):
 			call_back(*parameters)
 		else:
 			call_back()
-	except BaseException as be:
-		log_error("mt_async_call: exception (logged, not reported!) \n %s" % extract_stack_trace(be))
+	except:
+		st = traceback.format_exc()
+		log_error("mt_async_call: exception (logged, not reported!) \n %s" % st)


 # Execute the function on the main thread with the provided parameters, do
@ -742,6 +669,9 @@ class MThreadRunner(object):
 				self.rc = self.f()
 		except BaseException as be:
 			self.exception = be
+			st = traceback.format_exc()
+			log_error("MThreadRunner: exception \n %s" % st)
+			log_error("Exception will be raised in calling thread!")


 def _remove_objects(dbus_objects_rm):
@ -756,8 +686,8 @@ def mt_remove_dbus_objects(objs):

 # Make stream non-blocking
 def make_non_block(stream):
-	flags = fcntl.fcntl(stream, fcntl.F_GETFL)
-	fcntl.fcntl(stream, fcntl.F_SETFL, flags | os.O_NONBLOCK)
+	flags = fcntl(stream, F_GETFL)
+	fcntl(stream, F_SETFL, flags | os.O_NONBLOCK)


 def read_decoded(stream):
@ -765,128 +695,3 @@ def read_decoded(stream):
 	if tmp:
 		return tmp.decode("utf-8")
 	return ''
-
-
-class LockFile(object):
-	"""
-	Simple lock file class
-	Based on Pg.1144 "The Linux Programming Interface" by Michael Kerrisk
-	"""
-	def __init__(self, lock_file):
-		self.fd = 0
-		self.lock_file = lock_file
-
-	def __enter__(self):
-		try:
-			os.makedirs(os.path.dirname(self.lock_file), exist_ok=True)
-			self.fd = os.open(self.lock_file, os.O_CREAT | os.O_RDWR, stat.S_IRUSR | stat.S_IWUSR)
-
-			# Get and set the close on exec and lock the file
-			flags = fcntl.fcntl(self.fd, fcntl.F_GETFD)
-			flags |= fcntl.FD_CLOEXEC
-			fcntl.fcntl(self.fd, fcntl.F_SETFL, flags)
-			fcntl.lockf(self.fd, fcntl.LOCK_EX | fcntl.LOCK_NB)
-		except OSError as e:
-			if e.errno == errno.EAGAIN:
-				log_error("Daemon already running, exiting!")
-			else:
-				log_error("Error during creation of lock file(%s): errno(%d), exiting!" % (self.lock_file, e.errno))
-			sys.exit(114)
-
-	def __exit__(self, _type, _value, _traceback):
-		os.close(self.fd)
-
-
-def extract_stack_trace(exception):
-	return ''.join(traceback.format_exception(None, exception, exception.__traceback__))
-
-
-def lvm_column_key(key):
-	# Check LV
-	if key.startswith("lv_") or key.startswith("vg_") or key.startswith("pool_") or \
-			key.endswith("_percent") or key.startswith("move_") or key.startswith("vdo_") or \
-			key in ["origin_uuid", "segtype", "origin", "data_lv", "metadata_lv"]:
-		return True
-	# Check VG
-	if key.startswith("vg_") or key.startswith("lv_") or key.startswith("pv_") or \
-			key in ["max_lv", "max_pv", "snap_count"]:
-		return True
-	# Check PV
-	if key.startswith("pv") or key.startswith("vg") or (key in ['dev_size', 'pe_start']):
-		return True
-	return False
-
-class LvmBug(RuntimeError):
-	"""
-	Things that are clearly a bug with lvm itself.
-	"""
-	def __init__(self, msg):
-		super().__init__(msg)
-
-	def __str__(self):
-		return "lvm bug encountered: %s" % ' '.join(self.args)
-
-
-class LvmDebugData:
-	def __init__(self, do_collection):
-		self.fd = -1
-		self.fn = None
-		self.collect = do_collection
-		if self.collect:
-			log_msg("Collecting lvm debug data!")
-
-	def _remove_file(self):
-		if self.fn is not None:
-			os.unlink(self.fn)
-			self.fn = None
-
-	def _close_fd(self):
-		if self.fd != -1:
-			os.close(self.fd)
-			self.fd = -1
-
-	def setup(self):
-		# Create a secure filename
-		if self.collect:
-			self.fd, self.fn = tempfile.mkstemp(suffix=".log", prefix="lvmdbusd.lvm.debug.")
-			return self.fn
-		return None
-
-	def lvm_complete(self):
-		# Remove the file ASAP, so we decrease our odds of leaving it
-		# around if the daemon gets killed by a signal -9
-		self._remove_file()
-
-	def dump(self):
-		# Read the file and log it to log_err
-		if self.fd != -1:
-			# How big could the verbose debug get?
-			debug = os.read(self.fd, 1024*1024*5)
-			debug_txt = debug.decode("utf-8")
-			for line in debug_txt.split("\n"):
-				log_error("lvm debug >>> %s" % line)
-			self._close_fd()
-		# In case lvm_complete doesn't get called.
-		self._remove_file()
-
-	def complete(self):
-		self._close_fd()
-		# In case lvm_complete doesn't get called.
-		self._remove_file()
-
-
-def get_error_msg(report_json):
-	# Get the error message from the returned JSON
-	if 'log' in report_json:
-		error_msg = ""
-		# Walk the entire log array and build an error string
-		for log_entry in report_json['log']:
-			if log_entry['log_type'] == "error":
-				if error_msg:
-					error_msg += ', ' + log_entry['log_message']
-				else:
-					error_msg = log_entry['log_message']
-
-		return error_msg
-
-	return None
--- a/daemons/lvmdbusd/vg.py
+++ b/daemons/lvmdbusd/vg.py
@ -20,7 +20,7 @@ from .request import RequestEntry
 from .loader import common
 from .state import State
 from . import background
-from .utils import round_size, mt_remove_dbus_objects, LvmBug, lvm_column_key
+from .utils import round_size, mt_remove_dbus_objects
 from .job import JobState


@ -31,24 +31,17 @@ def vgs_state_retrieve(selection, cache_refresh=True):
 	if cache_refresh:
 		cfg.db.refresh()

-	try:
-		for v in cfg.db.fetch_vgs(selection):
-			rc.append(
-				VgState(
-					v['vg_uuid'], v['vg_name'], v['vg_fmt'], n(v['vg_size']),
-					n(v['vg_free']), v['vg_sysid'], n(v['vg_extent_size']),
-					n(v['vg_extent_count']), n(v['vg_free_count']),
-					v['vg_profile'], n(v['max_lv']), n(v['max_pv']),
-					n(v['pv_count']), n(v['lv_count']), n(v['snap_count']),
-					n(v['vg_seqno']), n(v['vg_mda_count']),
-					n(v['vg_mda_free']), n(v['vg_mda_size']),
-					n(v['vg_mda_used_count']), v['vg_attr'], v['vg_tags']))
-	except KeyError as ke:
-		# Sometimes lvm omits returning one of the keys we requested.
-		key = ke.args[0]
-		if lvm_column_key(key):
-			raise LvmBug("missing JSON key: '%s'" % key)
-		raise ke
+	for v in cfg.db.fetch_vgs(selection):
+		rc.append(
+			VgState(
+				v['vg_uuid'], v['vg_name'], v['vg_fmt'], n(v['vg_size']),
+				n(v['vg_free']), v['vg_sysid'], n(v['vg_extent_size']),
+				n(v['vg_extent_count']), n(v['vg_free_count']),
+				v['vg_profile'], n(v['max_lv']), n(v['max_pv']),
+				n(v['pv_count']), n(v['lv_count']), n(v['snap_count']),
+				n(v['vg_seqno']), n(v['vg_mda_count']),
+				n(v['vg_mda_free']), n(v['vg_mda_size']),
+				n(v['vg_mda_used_count']), v['vg_attr'], v['vg_tags']))
 	return rc


@ -151,7 +144,6 @@ class Vg(AutomatedProperties):
 	_AllocNormal_meta = ('b', VG_INTERFACE)
 	_AllocAnywhere_meta = ('b', VG_INTERFACE)
 	_Clustered_meta = ('b', VG_INTERFACE)
-	_Shared_meta = ('b', VG_INTERFACE)
 	_Name_meta = ('s', VG_INTERFACE)

 	# noinspection PyUnusedLocal,PyPep8Naming
@ -786,10 +778,6 @@ class Vg(AutomatedProperties):
 	def Clustered(self):
 		return self._attribute(5, 'c')

-	@property
-	def Shared(self):
-		return self._attribute(5, 's')
-

 class VgVdo(Vg):

--- a/daemons/lvmlockd/Makefile.in
+++ b/daemons/lvmlockd/Makefile.in
@ -15,61 +15,61 @@ srcdir = @srcdir@
 top_srcdir = @top_srcdir@
 top_builddir = @top_builddir@

+USE_SD_NOTIFY=yes
+
 SOURCES = lvmlockd-core.c
-SOURCES2 = lvmlockctl.c
-
-TARGETS = lvmlockd lvmlockctl
-
-include $(top_builddir)/make.tmpl

 ifeq ("@BUILD_LOCKDSANLOCK@", "yes")
  SOURCES += lvmlockd-sanlock.c
-  CFLAGS += $(LIBSANLOCKCLIENT_CFLAGS)
-  LOCK_LIBS += $(LIBSANLOCKCLIENT_LIBS)
+  LOCK_LIBS += -lsanlock_client
 endif

 ifeq ("@BUILD_LOCKDDLM@", "yes")
  SOURCES += lvmlockd-dlm.c
-  CFLAGS += $(LIBDLM) $(LIBDLMCONTROL_CFLAGS)
-#  LOCK_LIBS += $(LIBDLM_LIBS) $(LIBDLMCONTROL_LIBS)
-  LOCK_LIBS += -ldlm_lt $(LIBDLMCONTROL_LIBS)
+  LOCK_LIBS += -ldlm_lt
+  LOCK_LIBS += -ldlmcontrol
 endif

 ifeq ("@BUILD_LOCKDIDM@", "yes")
  SOURCES += lvmlockd-idm.c
-  LOCK_LIBS += $(LIBSEAGATEILM_LIBS) $(BLKID_LIBS)
+  LOCK_LIBS += -lseagate_ilm -lblkid
 endif

+SOURCES2 = lvmlockctl.c
+
+TARGETS = lvmlockd lvmlockctl
+
 CFLOW_SOURCES = $(addprefix $(srcdir)/, $(SOURCES))
 CFLOW_TARGET = lvmlockd

 .PHONY: install_lvmlockd install_lvmlockctl

+include $(top_builddir)/make.tmpl
+
 CFLAGS += $(EXTRA_EXEC_CFLAGS)
 INCLUDES += -I$(top_srcdir)/libdaemon/server
 LDFLAGS += -L$(top_builddir)/libdaemon/server $(EXTRA_EXEC_LDFLAGS) $(ELDFLAGS)
 LIBS += $(DAEMON_LIBS) $(PTHREAD_LIBS)

-ifneq (,$(firstword $(LIBSYSTEMD_LIBS)))
-	DEFS += -DUSE_SD_NOTIFY
-	CFLAGS += $(LIBSYSTEMD_CFLAGS)
-	LIBS += $(LIBSYSTEMD_LIBS)
+ifeq ($(USE_SD_NOTIFY),yes)
+	CFLAGS += $(shell pkg-config --cflags libsystemd) -DUSE_SD_NOTIFY
+	LIBS += $(shell pkg-config --libs libsystemd)
 endif

 lvmlockd: $(OBJECTS) $(top_builddir)/libdaemon/server/libdaemonserver.a $(INTERNAL_LIBS)
-	$(SHOW) "    [CC] $@"
+	@echo "    [CC] $@"
 	$(Q) $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $+ $(LOCK_LIBS) $(LIBS)

 lvmlockctl: lvmlockctl.o $(INTERNAL_LIBS)
-	$(SHOW) "    [CC] $@"
+	@echo "    [CC] $@"
 	$(Q) $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $+ $(LIBS)

 install_lvmlockd: lvmlockd
-	$(SHOW) "    [INSTALL] $<"
+	@echo "    [INSTALL] $<"
 	$(Q) $(INSTALL_PROGRAM) -D $< $(sbindir)/$(<F)

 install_lvmlockctl: lvmlockctl
-	$(SHOW) "    [INSTALL] $<"
+	@echo "    [INSTALL] $<"
 	$(Q) $(INSTALL_PROGRAM) -D $< $(sbindir)/$(<F)

 install_lvm2: install_lvmlockd install_lvmlockctl
--- a/daemons/lvmlockd/lvmlockctl.c
+++ b/daemons/lvmlockd/lvmlockctl.c
@ -38,7 +38,7 @@ static int stop_lockspaces = 0;
 static char *arg_vg_name = NULL;

 #define DUMP_SOCKET_NAME "lvmlockd-dump.sock"
-#define DUMP_BUF_SIZE (4 * 1024 * 1024)
+#define DUMP_BUF_SIZE (1024 * 1024)
 static char dump_buf[DUMP_BUF_SIZE+1];
 static int dump_len;
 static struct sockaddr_un dump_addr;
@ -264,19 +264,19 @@ static void format_info_r_action(char *line, char *r_name, char *r_type)

 static void format_info_line(char *line, char *r_name, char *r_type)
 {
-	if (!strncmp(line, "info=structs ", sizeof("info=structs ") - 1)) {
+	if (!strncmp(line, "info=structs ", strlen("info=structs "))) {
 		/* only print this in the raw info dump */

-	} else if (!strncmp(line, "info=client ", sizeof("info=client ") - 1)) {
+	} else if (!strncmp(line, "info=client ", strlen("info=client "))) {
 		save_client_info(line);

-	} else if (!strncmp(line, "info=ls ", sizeof("info=ls ") - 1)) {
+	} else if (!strncmp(line, "info=ls ", strlen("info=ls "))) {
 		format_info_ls(line);

-	} else if (!strncmp(line, "info=ls_action ", sizeof("info=ls_action ") - 1)) {
+	} else if (!strncmp(line, "info=ls_action ", strlen("info=ls_action "))) {
 		format_info_ls_action(line);

-	} else if (!strncmp(line, "info=r ", sizeof("info=r ") - 1)) {
+	} else if (!strncmp(line, "info=r ", strlen("info=r "))) {
 		/*
 		 * r_name/r_type are reset when a new resource is found.
 		 * They are reused for the lock and action lines that
@ -286,11 +286,11 @@ static void format_info_line(char *line, char *r_name, char *r_type)
 		memset(r_type, 0, MAX_NAME+1);
 		format_info_r(line, r_name, r_type);

-	} else if (!strncmp(line, "info=lk ", sizeof("info=lk ") - 1)) {
+	} else if (!strncmp(line, "info=lk ", strlen("info=lk "))) {
 		/* will use info from previous r */
 		format_info_lk(line, r_name, r_type);

-	} else if (!strncmp(line, "info=r_action ", sizeof("info=r_action ") - 1)) {
+	} else if (!strncmp(line, "info=r_action ", strlen("info=r_action "))) {
 		/* will use info from previous r */
 		format_info_r_action(line, r_name, r_type);
 	} else {
@ -940,7 +940,7 @@ static int read_options(int argc, char *argv[])
 	int option_index = 0;
 	int c;

-	static const struct option _long_options[] = {
+	static struct option long_options[] = {
 		{"help",            no_argument,       0,  'h' },
 		{"quit",            no_argument,       0,  'q' },
 		{"info",            no_argument,       0,  'i' },
@ -962,7 +962,7 @@ static int read_options(int argc, char *argv[])
 	}

 	while (1) {
-		c = getopt_long(argc, argv, "hqidE:D:w:k:r:Se", _long_options, &option_index);
+		c = getopt_long(argc, argv, "hqidE:D:w:k:r:Se", long_options, &option_index);
 		if (c == -1)
 			break;

--- a/daemons/lvmlockd/lvmlockd-client.h
+++ b/daemons/lvmlockd/lvmlockd-client.h
@ -16,12 +16,9 @@
 #define LVMLOCKD_SOCKET DEFAULT_RUN_DIR "/lvmlockd.socket"
 #define LVMLOCKD_ADOPT_FILE DEFAULT_RUN_DIR "/lvmlockd.adopt"

-#define LVMLOCKD_USE_SANLOCK_LVB 0
-
 /* Wrappers to open/close connection */

-static inline __attribute__((always_inline))
-	daemon_handle lvmlockd_open(const char *sock)
+static inline daemon_handle lvmlockd_open(const char *sock)
 {
 	daemon_info lvmlockd_info = {
 		.path = "lvmlockd",
@ -54,8 +51,5 @@ static inline void lvmlockd_close(daemon_handle h)
 #define EREMOVED  219
 #define EDEVOPEN  220 /* sanlock failed to open lvmlock LV */
 #define ELMERR    221
-#define EORPHAN   222
-#define EADOPT_NONE  223
-#define EADOPT_RETRY 224

 #endif	/* _LVM_LVMLOCKD_CLIENT_H */
--- a/daemons/lvmlockd/lvmlockd-core.c
+++ b/daemons/lvmlockd/lvmlockd-core.c
--- a/daemons/lvmlockd/lvmlockd-dlm.c
+++ b/daemons/lvmlockd/lvmlockd-dlm.c
@ -96,6 +96,7 @@ static int check_args_version(char *vg_args)

 static int read_cluster_name(char *clustername)
 {
+	static const char close_error_msg[] = "read_cluster_name: close_error %d";
 	char *n;
 	int fd;
 	int rv;
@ -114,19 +115,18 @@ static int read_cluster_name(char *clustername)
 	rv = read(fd, clustername, MAX_ARGS);
 	if (rv < 0) {
 		log_error("read_cluster_name: cluster name read error %d, check dlm_controld", fd);
-		goto out;
+		if (close(fd))
+			log_error(close_error_msg, fd);
+		return rv;
 	}
 	clustername[rv] = 0;

 	n = strstr(clustername, "\n");
 	if (n)
 		*n = '\0';
-	rv = 0;
-out:
 	if (close(fd))
-		log_error("read_cluster_name: close_error %d", fd);
-
-	return rv;
+		log_error(close_error_msg, fd);
+	return 0;
 }

 #define MAX_VERSION 16
@ -220,112 +220,20 @@ int lm_prepare_lockspace_dlm(struct lockspace *ls)
 	return 0;
 }

-#define DLM_COMMS_PATH "/sys/kernel/config/dlm/cluster/comms"
-#define LOCK_LINE_MAX 1024
-static int get_local_nodeid(void)
-{
-	struct dirent *de;
-	DIR *ls_dir;
-	char ls_comms_path[PATH_MAX] = { 0 };
-	char path[PATH_MAX] = { 0 };
-	FILE *file;
-	char line[LOCK_LINE_MAX];
-	char *str1, *str2;
-	int rv = -1, val;
-
-	snprintf(ls_comms_path, sizeof(ls_comms_path), "%s", DLM_COMMS_PATH);
-
-	if (!(ls_dir = opendir(ls_comms_path)))
-		return -ECONNREFUSED;
-
-	while ((de = readdir(ls_dir))) {
-		if (de->d_name[0] == '.')
-			continue;
-
-		snprintf(path, sizeof(path), "%s/%s/local",
-			 DLM_COMMS_PATH, de->d_name);
-
-		if (!(file = fopen(ls_comms_path, "r")))
-			continue;
-		str1 = fgets(line, sizeof(line), file);
-		if (fclose(file))
-			log_sys_debug("fclose", path);
-		if (str1) {
-			rv = sscanf(line, "%d", &val);
-			if ((rv == 1) && (val == 1 )) {
-				snprintf(path, sizeof(path), "%s/%s/nodeid",
-					 DLM_COMMS_PATH, de->d_name);
-
-				if (!(file = fopen(path, "r")))
-					continue;
-				str2 = fgets(line, sizeof(line), file);
-				if (fclose(file))
-					log_sys_debug("fclose", path);
-				if (str2) {
-					rv = sscanf(line, "%d", &val);
-					if (rv == 1) {
-						if (closedir(ls_dir))
-							log_sys_debug("closedir", ls_comms_path);
-						return val;
-					}
-				}
-			}
-		}
-	}
-
-	if (closedir(ls_dir))
-		log_sys_debug("closedir", ls_comms_path);
-
-	return rv;
-}
-
-int lm_purge_locks_dlm(struct lockspace *ls)
-{
-	struct lm_dlm *lmd = (struct lm_dlm *)ls->lm_data;
-	int nodeid;
-	int rv = -1;
-
-	if (!lmd || !lmd->dh) {
-		log_error("purge_locks_dlm %s no dlm_handle_t error", ls->name);
-		goto fail;
-	}
-
-	nodeid = get_local_nodeid();
-	if (nodeid < 0) {
-		log_error("failed to get local nodeid");
-		goto fail;
-	}
-	if (dlm_ls_purge(lmd->dh, nodeid, 0)) {
-		log_error("purge_locks_dlm %s error", ls->name);
-		goto fail;
-	}
-
-	rv = 0;
-fail:
-	return rv;
-}
-
-int lm_add_lockspace_dlm(struct lockspace *ls, int adopt_only, int adopt_ok)
+int lm_add_lockspace_dlm(struct lockspace *ls, int adopt)
 {
 	struct lm_dlm *lmd = (struct lm_dlm *)ls->lm_data;

 	if (daemon_test)
 		return 0;

-	if (adopt_only || adopt_ok) {
+	if (adopt)
 		lmd->dh = dlm_open_lockspace(ls->name);
-		if (!lmd->dh && adopt_ok)
-			lmd->dh = dlm_new_lockspace(ls->name, 0600, DLM_LSFL_NEWEXCL);
-		if (!lmd->dh)
-			log_error("add_lockspace_dlm adopt_only %d adopt_ok %d %s error",
-				  adopt_only, adopt_ok, ls->name);
-	} else {
+	else
 		lmd->dh = dlm_new_lockspace(ls->name, 0600, DLM_LSFL_NEWEXCL);
-		if (!lmd->dh)
-			log_error("add_lockspace_dlm %s error", ls->name);
-	}

 	if (!lmd->dh) {
+		log_error("add_lockspace_dlm %s adopt %d error", ls->name, adopt);
 		free(lmd);
 		ls->lm_data = NULL;
 		return -1;
@ -393,7 +301,7 @@ static int lm_add_resource_dlm(struct lockspace *ls, struct resource *r, int wit
 			      r->name, strlen(r->name),
 			      0, NULL, NULL, NULL);
 	if (rv < 0) {
-		log_error("%s:%s add_resource_dlm lock error %d", ls->name, r->name, rv);
+		log_error("S %s R %s add_resource_dlm lock error %d", ls->name, r->name, rv);
 		return rv;
 	}
 out:
@ -417,7 +325,7 @@ int lm_rem_resource_dlm(struct lockspace *ls, struct resource *r)

 	rv = dlm_ls_unlock_wait(lmd->dh, lksb->sb_lkid, 0, lksb);
 	if (rv < 0) {
-		log_error("%s:%s rem_resource_dlm unlock error %d", ls->name, r->name, rv);
+		log_error("S %s R %s rem_resource_dlm unlock error %d", ls->name, r->name, rv);
 	}
 out:
 	free(rdd->vb);
@ -472,7 +380,7 @@ static int lm_adopt_dlm(struct lockspace *ls, struct resource *r, int ld_mode,
 		goto fail;
 	}

-	log_debug("%s:%s adopt_dlm", ls->name, r->name);
+	log_debug("S %s R %s adopt_dlm", ls->name, r->name);

 	if (daemon_test)
 		return 0;
@ -481,29 +389,29 @@ static int lm_adopt_dlm(struct lockspace *ls, struct resource *r, int ld_mode,
 	 * dlm returns 0 for success, -EAGAIN if an orphan is
 	 * found with another mode, and -ENOENT if no orphan.
 	 *
-	 * cast/bast/param are (void (*)(void*))1 because the kernel
+	 * cast/bast/param are (void *)1 because the kernel
 	 * returns errors if some are null.
 	 */

 	rv = dlm_ls_lockx(lmd->dh, mode, lksb, flags,
 			  r->name, strlen(r->name), 0,
-			  (void (*)(void*))1, (void (*)(void*))1, (void (*)(void*))1,
+			  (void *)1, (void *)1, (void *)1,
 			  NULL, NULL);

 	if (rv == -1 && (errno == EAGAIN)) {
-		log_debug("%s:%s adopt_dlm adopt mode %d try other mode",
+		log_debug("S %s R %s adopt_dlm adopt mode %d try other mode",
 			  ls->name, r->name, ld_mode);
-		rv = -EADOPT_RETRY;
+		rv = -EUCLEAN;
 		goto fail;
 	}
 	if (rv == -1 && (errno == ENOENT)) {
-		log_debug("%s:%s adopt_dlm adopt mode %d no lock",
+		log_debug("S %s R %s adopt_dlm adopt mode %d no lock",
 			  ls->name, r->name, ld_mode);
-		rv = -EADOPT_NONE;
+		rv = -ENOENT;
 		goto fail;
 	}
 	if (rv < 0) {
-		log_debug("%s:%s adopt_dlm mode %d flags %x error %d errno %d",
+		log_debug("S %s R %s adopt_dlm mode %d flags %x error %d errno %d",
 			  ls->name, r->name, mode, flags, rv, errno);
 		goto fail;
 	}
@ -533,7 +441,7 @@ static int lm_adopt_dlm(struct lockspace *ls, struct resource *r, int ld_mode,
 */

 int lm_lock_dlm(struct lockspace *ls, struct resource *r, int ld_mode,
-		struct val_blk *vb_out, int adopt_only, int adopt_ok)
+		struct val_blk *vb_out, int adopt)
 {
 	struct lm_dlm *lmd = (struct lm_dlm *)ls->lm_data;
 	struct rd_dlm *rdd = (struct rd_dlm *)r->lm_data;
@ -543,13 +451,7 @@ int lm_lock_dlm(struct lockspace *ls, struct resource *r, int ld_mode,
 	int mode;
 	int rv;

-	if (adopt_ok) {
-		log_debug("%s:%s lock_dlm adopt_ok not supported", ls->name, r->name);
-		return -1;
-	}
-
-	if (adopt_only) {
-		log_debug("%s:%s lock_dlm adopt_only", ls->name, r->name);
+	if (adopt) {
 		/* When adopting, we don't follow the normal method
 		   of acquiring a NL lock then converting it to the
 		   desired mode. */
@ -578,7 +480,7 @@ int lm_lock_dlm(struct lockspace *ls, struct resource *r, int ld_mode,
 		return -EINVAL;
 	}

-	log_debug("%s:%s lock_dlm", ls->name, r->name);
+	log_debug("S %s R %s lock_dlm", ls->name, r->name);

 	if (daemon_test) {
 		if (rdd->vb) {
@ -598,7 +500,7 @@ int lm_lock_dlm(struct lockspace *ls, struct resource *r, int ld_mode,
 				      r->name, strlen(r->name),
 				      0, NULL, NULL, NULL);
 		if (rv == -1) {
-			log_debug("%s:%s lock_dlm acquire mode PR for %d rv %d",
+			log_debug("S %s R %s lock_dlm acquire mode PR for %d rv %d",
 				  ls->name, r->name, mode, rv);
 			goto lockrv;
 		}
@ -611,17 +513,17 @@ int lm_lock_dlm(struct lockspace *ls, struct resource *r, int ld_mode,
 			      0, NULL, NULL, NULL);
 lockrv:
 	if (rv == -1 && errno == EAGAIN) {
-		log_debug("%s:%s lock_dlm acquire mode %d rv EAGAIN", ls->name, r->name, mode);
+		log_debug("S %s R %s lock_dlm acquire mode %d rv EAGAIN", ls->name, r->name, mode);
 		return -EAGAIN;
 	}
 	if (rv < 0) {
-		log_error("%s:%s lock_dlm acquire error %d errno %d", ls->name, r->name, rv, errno);
+		log_error("S %s R %s lock_dlm acquire error %d errno %d", ls->name, r->name, rv, errno);
 		return -ELMERR;
 	}

 	if (rdd->vb) {
 		if (lksb->sb_flags & DLM_SBF_VALNOTVALID) {
-			log_debug("%s:%s lock_dlm VALNOTVALID", ls->name, r->name);
+			log_debug("S %s R %s lock_dlm VALNOTVALID", ls->name, r->name);
 			memset(rdd->vb, 0, sizeof(struct val_blk));
 			memset(vb_out, 0, sizeof(struct val_blk));
 			goto out;
@ -650,11 +552,11 @@ int lm_convert_dlm(struct lockspace *ls, struct resource *r,
 	struct lm_dlm *lmd = (struct lm_dlm *)ls->lm_data;
 	struct rd_dlm *rdd = (struct rd_dlm *)r->lm_data;
 	struct dlm_lksb *lksb = &rdd->lksb;
-	int mode;
+	uint32_t mode;
 	uint32_t flags = 0;
 	int rv;

-	log_debug("%s:%s convert_dlm", ls->name, r->name);
+	log_debug("S %s R %s convert_dlm", ls->name, r->name);

 	flags |= LKF_CONVERT;
 	flags |= LKF_NOQUEUE;
@ -668,16 +570,14 @@ int lm_convert_dlm(struct lockspace *ls, struct resource *r,
 		rdd->vb->r_version = cpu_to_le32(r_version);
 		memcpy(lksb->sb_lvbptr, rdd->vb, sizeof(struct val_blk));

-		log_debug("%s:%s convert_dlm set r_version %u",
+		log_debug("S %s R %s convert_dlm set r_version %u",
 			  ls->name, r->name, r_version);

 		flags |= LKF_VALBLK;
 	}

-	if ((mode = to_dlm_mode(ld_mode)) < 0) {
-		log_error("lm_convert_dlm invalid mode %d", ld_mode);
-		return -EINVAL;
-	}
+	mode = to_dlm_mode(ld_mode);
+
 	if (daemon_test)
 		return 0;

@ -686,11 +586,11 @@ int lm_convert_dlm(struct lockspace *ls, struct resource *r,
 			      0, NULL, NULL, NULL);
 	if (rv == -1 && errno == EAGAIN) {
 		/* FIXME: When does this happen?  Should something different be done? */
-		log_error("%s:%s convert_dlm mode %d rv EAGAIN", ls->name, r->name, mode);
+		log_error("S %s R %s convert_dlm mode %d rv EAGAIN", ls->name, r->name, mode);
 		return -EAGAIN;
 	}
 	if (rv < 0) {
-		log_error("%s:%s convert_dlm error %d", ls->name, r->name, rv);
+		log_error("S %s R %s convert_dlm error %d", ls->name, r->name, rv);
 		rv = -ELMERR;
 	}
 	return rv;
@ -740,7 +640,7 @@ int lm_unlock_dlm(struct lockspace *ls, struct resource *r,
 			memcpy(rdd->vb, &vb_next, sizeof(struct val_blk));
 			memcpy(lksb->sb_lvbptr, &vb_next, sizeof(struct val_blk));

-			log_debug("%s:%s unlock_dlm vb old %x %x %u new %x %x %u",
+			log_debug("S %s R %s unlock_dlm vb old %x %x %u new %x %x %u",
 				  ls->name, r->name,
 				  le16_to_cpu(vb_prev.version),
 				  le16_to_cpu(vb_prev.flags),
@ -749,12 +649,12 @@ int lm_unlock_dlm(struct lockspace *ls, struct resource *r,
 				  le16_to_cpu(vb_next.flags),
 				  le32_to_cpu(vb_next.r_version));
 		} else {
-			log_debug("%s:%s unlock_dlm vb unchanged", ls->name, r->name);
+			log_debug("S %s R %s unlock_dlm vb unchanged", ls->name, r->name);
 		}

 		flags |= LKF_VALBLK;
 	} else {
-		log_debug("%s:%s unlock_dlm", ls->name, r->name);
+		log_debug("S %s R %s unlock_dlm", ls->name, r->name);
 	}

 	if (daemon_test)
@ -764,7 +664,7 @@ int lm_unlock_dlm(struct lockspace *ls, struct resource *r,
 			      r->name, strlen(r->name),
 			      0, NULL, NULL, NULL);
 	if (rv < 0) {
-		log_error("%s:%s unlock_dlm error %d", ls->name, r->name, rv);
+		log_error("S %s R %s unlock_dlm error %d", ls->name, r->name, rv);
 		rv = -ELMERR;
 	}

@ -799,6 +699,7 @@ int lm_unlock_dlm(struct lockspace *ls, struct resource *r,

 int lm_hosts_dlm(struct lockspace *ls, int notify)
 {
+	static const char closedir_err_msg[] = "lm_hosts_dlm: closedir failed";
 	char ls_nodes_path[PATH_MAX];
 	struct dirent *de;
 	DIR *ls_dir;
@ -821,7 +722,7 @@ int lm_hosts_dlm(struct lockspace *ls, int notify)
 	}

 	if (closedir(ls_dir))
-		log_error("lm_hosts_dlm: closedir failed");
+		log_error(closedir_err_msg);

 	if (!count) {
 		log_error("lm_hosts_dlm found no nodes in %s", ls_nodes_path);
@ -838,10 +739,10 @@ int lm_hosts_dlm(struct lockspace *ls, int notify)

 int lm_get_lockspaces_dlm(struct list_head *ls_rejoin)
 {
+	static const char closedir_err_msg[] = "lm_get_lockspace_dlm: closedir failed";
 	struct lockspace *ls;
 	struct dirent *de;
 	DIR *ls_dir;
-	int ret = 0;

 	if (!(ls_dir = opendir(DLM_LOCKSPACES_PATH)))
 		return -ECONNREFUSED;
@ -854,20 +755,20 @@ int lm_get_lockspaces_dlm(struct list_head *ls_rejoin)
 			continue;

 		if (!(ls = alloc_lockspace())) {
-			ret = -ENOMEM;
-			goto out;
+			if (closedir(ls_dir))
+				log_error(closedir_err_msg);
+			return -ENOMEM;
 		}

 		ls->lm_type = LD_LM_DLM;
-		dm_strncpy(ls->name, de->d_name, sizeof(ls->name));
-		dm_strncpy(ls->vg_name, ls->name + strlen(LVM_LS_PREFIX), sizeof(ls->vg_name));
+		strncpy(ls->name, de->d_name, MAX_NAME);
+		strncpy(ls->vg_name, ls->name + strlen(LVM_LS_PREFIX), MAX_NAME);
 		list_add_tail(&ls->list, ls_rejoin);
 	}
-out:
-	if (closedir(ls_dir))
-		log_error("lm_get_lockspace_dlm: closedir failed");

-	return ret;
+	if (closedir(ls_dir))
+		log_error(closedir_err_msg);
+	return 0;
 }

 int lm_is_running_dlm(void)
@ -897,7 +798,7 @@ int lm_refresh_lv_start_dlm(struct action *act)
 	int rv;

 	/* split /dev/vgname/lvname into vgname and lvname strings */
-	dm_strncpy(path, act->path, sizeof(path));
+	strncpy(path, act->path, PATH_MAX-1);

 	/* skip past dev */
 	if (!(p = strchr(path + 1, '/')))
--- a/daemons/lvmlockd/lvmlockd-idm.c
+++ b/daemons/lvmlockd/lvmlockd-idm.c
@ -136,7 +136,7 @@ static int lm_idm_scsi_directory_select(const struct dirent *s)
 	return 0;
 }

-static int lm_idm_scsi_find_block_directory(const char *block_path)
+static int lm_idm_scsi_find_block_dirctory(const char *block_path)
 {
 	struct stat stats;

@ -252,7 +252,7 @@ static char *lm_idm_scsi_get_block_device_node(const char *scsi_path)
 		goto fail;
 	}

-	ret = lm_idm_scsi_find_block_directory(blk_path);
+	ret = lm_idm_scsi_find_block_dirctory(blk_path);
 	if (ret < 0) {
 		log_error("Fail to find block path %s", blk_path);
 		goto fail;
@ -364,7 +364,7 @@ static void lm_idm_update_vb_timestamp(uint64_t *vb_timestamp)

 	/*
 	 * It's possible that the multiple nodes have no clock
-	 * synchronization with microsecond precision and the time
+	 * synchronization with microsecond prcision and the time
 	 * is going backward.  For this case, simply increment the
 	 * existing timestamp and write out to drive.
 	 */
@ -391,7 +391,7 @@ int lm_prepare_lockspace_idm(struct lockspace *ls)
 	return 0;
 }

-int lm_add_lockspace_idm(struct lockspace *ls, int adopt_only, int adopt_ok)
+int lm_add_lockspace_idm(struct lockspace *ls, int adopt)
 {
 	char killpath[IDM_FAILURE_PATH_LEN];
 	char killargs[IDM_FAILURE_ARGS_LEN];
@ -530,7 +530,7 @@ static int to_idm_mode(int ld_mode)

 int lm_lock_idm(struct lockspace *ls, struct resource *r, int ld_mode,
 		struct val_blk *vb_out, char *lv_uuid, struct pvs *pvs,
-		int adopt_only, int adopt_ok)
+		int adopt)
 {
 	struct lm_idm *lmi = (struct lm_idm *)ls->lm_data;
 	struct rd_idm *rdi = (struct rd_idm *)r->lm_data;
--- a/daemons/lvmlockd/lvmlockd-internal.h
+++ b/daemons/lvmlockd/lvmlockd-internal.h
@ -107,12 +107,11 @@ struct client {
 #define LD_AF_SEARCH_LS            0x00000200
 #define LD_AF_WAIT_STARTING        0x00001000
 #define LD_AF_DUP_GL_LS            0x00002000
-#define LD_AF_ADOPT                0x00010000 /* adopt ok but not required */
+#define LD_AF_ADOPT                0x00010000
 #define LD_AF_WARN_GL_REMOVED	   0x00020000
 #define LD_AF_LV_LOCK              0x00040000
 #define LD_AF_LV_UNLOCK            0x00080000
 #define LD_AF_SH_EXISTS            0x00100000
-#define LD_AF_ADOPT_ONLY           0x00200000 /* adopt orphan or fail */

 /*
 * Number of times to repeat a lock request after
@ -132,7 +131,6 @@ struct action {
 	uint32_t flags;			/* LD_AF_ */
 	uint32_t version;
 	uint64_t host_id;
-	uint64_t lv_size_bytes;
 	int8_t op;			/* operation type LD_OP_ */
 	int8_t rt;			/* resource type LD_RT_ */
 	int8_t mode;			/* lock mode LD_LK_ */
@ -141,7 +139,6 @@ struct action {
 	int max_retries;
 	int result;
 	int lm_rv;			/* return value from lm_ function */
-	int align_mb;
 	char *path;
 	char vg_uuid[64];
 	char vg_name[MAX_NAME+1];
@ -193,6 +190,8 @@ struct lockspace {
 	void *lm_data;
 	uint64_t host_id;
 	uint64_t free_lock_offset;	/* for sanlock, start search for free lock here */
+	int free_lock_sector_size;	/* for sanlock */
+	int free_lock_align_size;	/* for sanlock */
 	struct pvs pvs;			/* for idm: PV list */

 	uint32_t start_client_id;	/* client_id that started the lockspace */
@ -364,8 +363,6 @@ void log_level(int level, const char *fmt, ...)  __attribute__((format(printf, 2
 #define log_debug(fmt, args...) log_level(LOG_DEBUG, fmt, ##args)
 #define log_error(fmt, args...) log_level(LOG_ERR, fmt, ##args)
 #define log_warn(fmt, args...) log_level(LOG_WARNING, fmt, ##args)
-#define log_sys_debug(x, y) \
-		log_debug("%s: %s failed: %s", y, x, strerror(errno))

 struct lockspace *alloc_lockspace(void);
 int lockspaces_empty(void);
@ -394,11 +391,10 @@ static inline const char *mode_str(int x)

 int lm_init_vg_dlm(char *ls_name, char *vg_name, uint32_t flags, char *vg_args);
 int lm_prepare_lockspace_dlm(struct lockspace *ls);
-int lm_add_lockspace_dlm(struct lockspace *ls, int adopt_only, int adopt_ok);
-int lm_purge_locks_dlm(struct lockspace *ls);
+int lm_add_lockspace_dlm(struct lockspace *ls, int adopt);
 int lm_rem_lockspace_dlm(struct lockspace *ls, int free_vg);
 int lm_lock_dlm(struct lockspace *ls, struct resource *r, int ld_mode,
-		struct val_blk *vb_out, int adopt_only, int adopt_ok);
+		struct val_blk *vb_out, int adopt);
 int lm_convert_dlm(struct lockspace *ls, struct resource *r,
 		   int ld_mode, uint32_t r_version);
 int lm_unlock_dlm(struct lockspace *ls, struct resource *r,
@ -428,12 +424,7 @@ static inline int lm_prepare_lockspace_dlm(struct lockspace *ls)
 	return -1;
 }

-static inline int lm_add_lockspace_dlm(struct lockspace *ls, int adopt_only, int adopt_ok)
-{
-	return -1;
-}
-
-static inline int lm_purge_locks_dlm(struct lockspace *ls)
+static inline int lm_add_lockspace_dlm(struct lockspace *ls, int adopt)
 {
 	return -1;
 }
@ -444,7 +435,7 @@ static inline int lm_rem_lockspace_dlm(struct lockspace *ls, int free_vg)
 }

 static inline int lm_lock_dlm(struct lockspace *ls, struct resource *r, int ld_mode,
-		struct val_blk *vb_out, int adopt_only, int adopt_ok)
+		struct val_blk *vb_out, int adopt)
 {
 	return -1;
 }
@ -505,16 +496,15 @@ static inline int lm_refresh_lv_check_dlm(struct action *act)

 #ifdef LOCKDSANLOCK_SUPPORT

-int lm_init_vg_sanlock(char *ls_name, char *vg_name, uint32_t flags, char *vg_args, int opt_align_mb);
-int lm_init_lv_sanlock(struct lockspace *ls, char *lv_name, char *vg_args, char *lv_args);
+int lm_init_vg_sanlock(char *ls_name, char *vg_name, uint32_t flags, char *vg_args);
+int lm_init_lv_sanlock(char *ls_name, char *vg_name, char *lv_name, char *vg_args, char *lv_args, int sector_size, int align_size, uint64_t free_offset);
 int lm_free_lv_sanlock(struct lockspace *ls, struct resource *r);
 int lm_rename_vg_sanlock(char *ls_name, char *vg_name, uint32_t flags, char *vg_args);
 int lm_prepare_lockspace_sanlock(struct lockspace *ls);
-int lm_add_lockspace_sanlock(struct lockspace *ls, int adopt_only, int adopt_ok);
+int lm_add_lockspace_sanlock(struct lockspace *ls, int adopt);
 int lm_rem_lockspace_sanlock(struct lockspace *ls, int free_vg);
 int lm_lock_sanlock(struct lockspace *ls, struct resource *r, int ld_mode,
-		    struct val_blk *vb_out, int *retry, 
-		    int adopt_only, int adopt_ok);
+		    struct val_blk *vb_out, int *retry, int adopt);
 int lm_convert_sanlock(struct lockspace *ls, struct resource *r,
 		       int ld_mode, uint32_t r_version);
 int lm_unlock_sanlock(struct lockspace *ls, struct resource *r,
@ -527,7 +517,7 @@ int lm_gl_is_enabled(struct lockspace *ls);
 int lm_get_lockspaces_sanlock(struct list_head *ls_rejoin);
 int lm_data_size_sanlock(void);
 int lm_is_running_sanlock(void);
-int lm_find_free_lock_sanlock(struct lockspace *ls, uint64_t lv_size_bytes);
+int lm_find_free_lock_sanlock(struct lockspace *ls, uint64_t *free_offset, int *sector_size, int *align_size);

 static inline int lm_support_sanlock(void)
 {
@ -536,12 +526,12 @@ static inline int lm_support_sanlock(void)

 #else

-static inline int lm_init_vg_sanlock(char *ls_name, char *vg_name, uint32_t flags, char *vg_args, int opt_align_mb)
+static inline int lm_init_vg_sanlock(char *ls_name, char *vg_name, uint32_t flags, char *vg_args)
 {
 	return -1;
 }

-static inline int lm_init_lv_sanlock(struct lockspace *ls, char *lv_name, char *vg_args, char *lv_args)
+static inline int lm_init_lv_sanlock(char *ls_name, char *vg_name, char *lv_name, char *vg_args, char *lv_args, int sector_size, int align_size, uint64_t free_offset)
 {
 	return -1;
 }
@ -561,7 +551,7 @@ static inline int lm_prepare_lockspace_sanlock(struct lockspace *ls)
 	return -1;
 }

-static inline int lm_add_lockspace_sanlock(struct lockspace *ls, int adopt_only, int adopt_ok)
+static inline int lm_add_lockspace_sanlock(struct lockspace *ls, int adopt)
 {
 	return -1;
 }
@ -572,8 +562,7 @@ static inline int lm_rem_lockspace_sanlock(struct lockspace *ls, int free_vg)
 }

 static inline int lm_lock_sanlock(struct lockspace *ls, struct resource *r, int ld_mode,
-		    struct val_blk *vb_out, int *retry,
-		    int adopt_only, int adopt_ok)
+		    struct val_blk *vb_out, int *retry, int adopt)
 {
 	return -1;
 }
@ -630,7 +619,7 @@ static inline int lm_is_running_sanlock(void)
 	return 0;
 }

-static inline int lm_find_free_lock_sanlock(struct lockspace *ls, uint64_t lv_size_bytes);
+static inline int lm_find_free_lock_sanlock(struct lockspace *ls, uint64_t *free_offset, int *sector_size, int *align_size)
 {
 	return -1;
 }
@ -647,11 +636,11 @@ static inline int lm_support_sanlock(void)
 int lm_data_size_idm(void);
 int lm_init_vg_idm(char *ls_name, char *vg_name, uint32_t flags, char *vg_args);
 int lm_prepare_lockspace_idm(struct lockspace *ls);
-int lm_add_lockspace_idm(struct lockspace *ls, int adopt_only, int adopt_ok);
+int lm_add_lockspace_idm(struct lockspace *ls, int adopt);
 int lm_rem_lockspace_idm(struct lockspace *ls, int free_vg);
 int lm_lock_idm(struct lockspace *ls, struct resource *r, int ld_mode,
 		struct val_blk *vb_out, char *lv_uuid, struct pvs *pvs,
-		int adopt_only, int adopt_ok);
+		int adopt);
 int lm_convert_idm(struct lockspace *ls, struct resource *r,
 		   int ld_mode, uint32_t r_version);
 int lm_unlock_idm(struct lockspace *ls, struct resource *r,
@ -684,7 +673,7 @@ static inline int lm_prepare_lockspace_idm(struct lockspace *ls)
 	return -1;
 }

-static inline int lm_add_lockspace_idm(struct lockspace *ls, int adopt_only, int adopt_ok)
+static inline int lm_add_lockspace_idm(struct lockspace *ls, int adopt)
 {
 	return -1;
 }
@ -696,7 +685,7 @@ static inline int lm_rem_lockspace_idm(struct lockspace *ls, int free_vg)

 static inline int lm_lock_idm(struct lockspace *ls, struct resource *r, int ld_mode,
 		       struct val_blk *vb_out, char *lv_uuid, struct pvs *pvs,
-		       int adopt_only, int adopt_ok)
+		       int adopt)
 {
 	return -1;
 }
--- a/daemons/lvmlockd/lvmlockd-sanlock.c
+++ b/daemons/lvmlockd/lvmlockd-sanlock.c
--- a/daemons/lvmpolld/Makefile.in
+++ b/daemons/lvmpolld/Makefile.in
@ -32,11 +32,11 @@ LDFLAGS += $(EXTRA_EXEC_LDFLAGS) $(ELDFLAGS)
 LIBS += $(DAEMON_LIBS) $(PTHREAD_LIBS)

 lvmpolld: $(OBJECTS) $(top_builddir)/libdaemon/server/libdaemonserver.a $(INTERNAL_LIBS)
-	$(SHOW) "    [CC] $@"
+	@echo "    [CC] $@"
 	$(Q) $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $+ $(LIBS)

 install_lvmpolld: lvmpolld
-	$(SHOW) "    [INSTALL] $<"
+	@echo "    [INSTALL] $<"
 	$(Q) $(INSTALL_PROGRAM) -D $< $(sbindir)/$(<F)

 install_lvm2: install_lvmpolld
--- a/daemons/lvmpolld/lvmpolld-cmd-utils.c
+++ b/daemons/lvmpolld/lvmpolld-cmd-utils.c
@ -19,7 +19,7 @@

 #define MIN_ARGV_SIZE  8

-static const char *const _polling_ops[] = {
+static const char *const polling_ops[] = {
 	[PVMOVE] = LVMPD_REQ_PVMOVE,
 	[CONVERT] = LVMPD_REQ_CONVERT,
 	[MERGE] = LVMPD_REQ_MERGE,
@ -28,7 +28,7 @@ static const char *const _polling_ops[] = {

 const char *polling_op(enum poll_type type)
 {
-	return type < POLL_TYPE_MAX ? _polling_ops[type] : "<undefined>";
+	return type < POLL_TYPE_MAX ? polling_ops[type] : "<undefined>";
 }

 static int add_to_cmd_arr(const char ***cmdargv, const char *str, unsigned *ind)
@ -81,7 +81,7 @@ const char **cmdargv_ctr(const struct lvmpolld_lv *pdlv, const char *lvm_binary,

 	/* one of: "convert", "pvmove", "merge", "merge_thin" */
 	if (!add_to_cmd_arr(&cmd_argv, "--polloperation", &i) ||
-	    !add_to_cmd_arr(&cmd_argv, _polling_ops[pdlv->type], &i))
+	    !add_to_cmd_arr(&cmd_argv, polling_ops[pdlv->type], &i))
 		goto err;

 	/* vg/lv name */
--- a/daemons/lvmpolld/lvmpolld-core.c
+++ b/daemons/lvmpolld/lvmpolld-core.c
@ -52,7 +52,7 @@ static pthread_key_t key;

 static const char *_strerror_r(int errnum, struct lvmpolld_thread_data *data)
 {
-#if defined(_GNU_SOURCE) && defined(STRERROR_R_CHAR_P)
+#ifdef _GNU_SOURCE
 	return strerror_r(errnum, data->buf, sizeof(data->buf)); /* never returns NULL */
 #elif (_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600)
 	return strerror_r(errnum, data->buf, sizeof(data->buf)) ? "" : data->buf;
@ -75,7 +75,7 @@ static void _usage(const char *prog, FILE *file)
 		"   -p|--pidfile     Set path to the pidfile\n"
 		"   -s|--socket      Set path to the communication socket\n"
 		"   -B|--binary      Path to lvm2 binary\n"
-		"   -t|--timeout     Time to wait in seconds before shutdown on idle (missing or 0 = infinite)\n\n", prog, prog);
+		"   -t|--timeout     Time to wait in seconds before shutdown on idle (missing or 0 = inifinite)\n\n", prog, prog);
 }

 static int _init(struct daemon_state *s)
@ -781,7 +781,7 @@ struct log_line_baton {
 	const char *prefix;
 };

-static daemon_handle _lvmpolld = { .error = 0 };
+daemon_handle _lvmpolld = { .error = 0 };

 static daemon_handle _lvmpolld_open(const char *socket)
 {
@ -867,14 +867,14 @@ enum action_index {
 	ACTION_MAX /* keep at the end */
 };

+static const action_fn_t actions[ACTION_MAX] = { [ACTION_DUMP] = action_dump };
+
 static int _make_action(enum action_index idx, void *args)
 {
-	static const action_fn_t _actions[ACTION_MAX] = { [ACTION_DUMP] = action_dump };
-
-	return idx < ACTION_MAX ? _actions[idx](args) : 0;
+	return idx < ACTION_MAX ? actions[idx](args) : 0;
 }

-static int _lvmpolld_client(const char *socket, enum action_index action)
+static int _lvmpolld_client(const char *socket, unsigned action)
 {
 	int r;

@ -892,9 +892,10 @@ static int _lvmpolld_client(const char *socket, enum action_index action)
 	return r ? EXIT_SUCCESS : EXIT_FAILURE;
 }

-static const struct option _long_options[] = {
+static int action_idx = ACTION_MAX;
+static struct option long_options[] = {
 	/* Have actions always at the beginning of the array. */
-	{"dump",	no_argument,		0,		ACTION_DUMP }, /* or an option_index ? */
+	{"dump",	no_argument,		&action_idx,	ACTION_DUMP }, /* or an option_index ? */

 	/* other options */
 	{"binary",	required_argument,	0,		'B' },
@ -913,7 +914,7 @@ int main(int argc, char *argv[])
 	int opt;
 	int option_index = 0;
 	int client = 0, server = 0;
-	enum action_index action = ACTION_MAX;
+	unsigned action = ACTION_MAX;
 	struct timespec timeout;
 	daemon_idle di = { .ptimeout = &timeout };
 	struct lvmpolld_state ls = { .log_config = "" };
@ -929,16 +930,16 @@ int main(int argc, char *argv[])
 		.socket_path = getenv("LVM_LVMPOLLD_SOCKET") ?: LVMPOLLD_SOCKET,
 	};

-	while ((opt = getopt_long(argc, argv, "fhVl:p:s:B:t:", _long_options, &option_index)) != -1) {
+	while ((opt = getopt_long(argc, argv, "fhVl:p:s:B:t:", long_options, &option_index)) != -1) {
 		switch (opt) {
 		case 0 :
-			if (action != ACTION_MAX) {
+			if (action < ACTION_MAX) {
 				fprintf(stderr, "Can't perform more actions. Action already requested: %s\n",
-					_long_options[action].name);
+					long_options[action].name);
 				_usage(argv[0], stderr);
 				exit(EXIT_FAILURE);
 			}
-			action = ACTION_DUMP;
+			action = action_idx;
 			client = 1;
 			break;
 		case '?':
--- a/daemons/lvmpolld/lvmpolld-data-utils.c
+++ b/daemons/lvmpolld/lvmpolld-data-utils.c
@ -273,12 +273,12 @@ static void _pdlv_locked_dump(struct buffer *buff, const struct lvmpolld_lv *pdl
 		buffer_append(buff, tmp);
 	if (dm_snprintf(tmp, sizeof(tmp), "\t\tpolling_finished=%d\n", pdlv->polling_finished) > 0)
 		buffer_append(buff, tmp);
-	if (dm_snprintf(tmp, sizeof(tmp), "\t\terror_occurred=%d\n", pdlv->error) > 0)
+	if (dm_snprintf(tmp, sizeof(tmp), "\t\terror_occured=%d\n", pdlv->error) > 0)
 		buffer_append(buff, tmp);
 	if (dm_snprintf(tmp, sizeof(tmp), "\t\tinit_requests_count=%d\n", pdlv->init_rq_count) > 0)
 		buffer_append(buff, tmp);

-	/* lvm_command-section { */
+	/* lvm_commmand-section { */
 	buffer_append(buff, "\t\tlvm_command {\n");
 	if (cmd_state->retcode == -1 && !cmd_state->signal)
 		buffer_append(buff, "\t\t\tstate=\"" LVMPD_RESP_IN_PROGRESS "\"\n");
@ -290,7 +290,7 @@ static void _pdlv_locked_dump(struct buffer *buff, const struct lvmpolld_lv *pdl
 			buffer_append(buff, tmp);
 	}
 	buffer_append(buff, "\t\t}\n");
-	/* } lvm_command-section */
+	/* } lvm_commmand-section */

 	buffer_append(buff, "\t}\n");
 	/* } pdlv-section */
--- a/daemons/lvmpolld/lvmpolld-data-utils.h
+++ b/daemons/lvmpolld/lvmpolld-data-utils.h
@ -45,18 +45,18 @@ struct lvmpolld_lv {
 	 * accessing following vars doesn't
 	 * require struct lvmpolld_lv lock
 	 */
-	struct lvmpolld_state *ls;
-	enum poll_type type;
-	const char *lvid;
-	const char *lvmpolld_id;
-	const char *devicesfile;
-	const char *lvname; /* full vg/lv name */
-	unsigned pdtimeout; /* in seconds */
-	const char *sinterval;
-	const char *lvm_system_dir_env;
-	struct lvmpolld_store *pdst;
-	const char **cmdargv;
-	const char **cmdenvp;
+	struct lvmpolld_state *const ls;
+	const enum poll_type type;
+	const char *const lvid;
+	const char *const lvmpolld_id;
+	const char *const devicesfile;
+	const char *const lvname; /* full vg/lv name */
+	const unsigned pdtimeout; /* in seconds */
+	const char *const sinterval;
+	const char *const lvm_system_dir_env;
+	struct lvmpolld_store *const pdst;
+	const char *const *cmdargv;
+	const char *const *cmdenvp;

 	/* only used by write */
 	pid_t cmd_pid;
@ -66,9 +66,9 @@ struct lvmpolld_lv {

 	/* block of shared variables protected by lock */
 	struct lvmpolld_cmd_stat cmd_state;
-	unsigned init_rq_count; /* for debugging purposes only */
+	unsigned init_rq_count; /* for debuging purposes only */
 	unsigned polling_finished:1; /* no more updates */
-	unsigned error:1; /* unrecoverable error occurred in lvmpolld */
+	unsigned error:1; /* unrecoverable error occured in lvmpolld */
 };

 typedef void (*lvmpolld_parse_output_fn_t) (struct lvmpolld_lv *pdlv, const char *line);
--- a/daemons/lvmpolld/lvmpolld-protocol.h
+++ b/daemons/lvmpolld/lvmpolld-protocol.h
@ -45,7 +45,7 @@
 #define LVMPD_RESP_OK		"OK"

 #define LVMPD_REAS_RETCODE	"retcode" /* lvm cmd ret code */
-#define LVMPD_REAS_SIGNAL	"signal" /* lvm cmd terminating signal */
+#define LVMPD_REAS_SIGNAL	"signal" /* lvm cmd terminating singal */

 #define LVMPD_RET_DUP_FAILED	100
 #define LVMPD_RET_EXC_FAILED	101
--- a/device_mapper/Makefile
+++ b/device_mapper/Makefile
@ -1,4 +1,4 @@
-# Copyright (C) 2018 - 2022 Red Hat, Inc. All rights reserved.
+# Copyright (C) 2018 Red Hat, Inc. All rights reserved.
 #
 # This file is part of the device-mapper userspace tools.
 #
@ -29,7 +29,6 @@ DEVICE_MAPPER_SOURCE=\
 	device_mapper/regex/parse_rx.c \
 	device_mapper/regex/ttree.c \
 	device_mapper/vdo/status.c \
-	device_mapper/vdo/vdo_reader.c \
 	device_mapper/vdo/vdo_target.c

 DEVICE_MAPPER_TARGET = device_mapper/libdevice-mapper.a
@ -44,10 +43,10 @@ CLEAN_TARGETS += $(DEVICE_MAPPER_DEPENDS) $(DEVICE_MAPPER_OBJECTS) \
 #$(DEVICE_MAPPER_OBJECTS): INCLUDES+=$(VDO_INCLUDES)

 $(DEVICE_MAPPER_TARGET): $(DEVICE_MAPPER_OBJECTS)
-	$(SHOW) "    [AR] $@"
+	@echo "    [AR] $@"
 	$(Q) $(RM) $@
 	$(Q) $(AR) rsv $@ $(DEVICE_MAPPER_OBJECTS) > /dev/null

-ifeq ("$(USE_TRACKING)","yes")
+ifeq ("$(DEPENDS)","yes")
 -include $(DEVICE_MAPPER_DEPENDS)
 endif
--- a/device_mapper/all.h
+++ b/device_mapper/all.h
@ -175,11 +175,12 @@ struct dm_names {

 struct dm_active_device {
 	struct dm_list list;
-	dev_t devno;
-	const char *name;	/* device name */
+	int major;
+	int minor;
+	char *name;	/* device name */

 	uint32_t event_nr; /* valid when DM_DEVICE_LIST_HAS_EVENT_NR is set */
-	const char *uuid;	/* valid uuid when DM_DEVICE_LIST_HAS_UUID is set */
+	char *uuid;	/* valid uuid when DM_DEVICE_LIST_HAS_UUID is set */
 };

 struct dm_versions {
@ -229,6 +230,13 @@ struct dm_names *dm_task_get_names(struct dm_task *dmt);
 #define DM_DEVICE_LIST_HAS_UUID		2
 int dm_task_get_device_list(struct dm_task *dmt, struct dm_list **devs_list,
 			    unsigned *devs_features);
+/*
+ * -1: no idea about uuid (not provided by DM_DEVICE_LIST ioctl)
+ *  0: uuid not present
+ *  1: listed and dm_active_device will be set for not NULL pointer
+ */
+int dm_device_list_find_by_uuid(struct dm_list *devs_list, const char *uuid,
+				const struct dm_active_device **dev);
 /* Release all associated memory with list of active DM devices */
 void dm_device_list_destroy(struct dm_list **devs_list);

@ -304,15 +312,15 @@ int dm_task_add_target(struct dm_task *dmt,
 #define DM_FORMAT_DEV_BUFSIZE	13	/* Minimum bufsize to handle worst case. */
 int dm_format_dev(char *buf, int bufsize, uint32_t dev_major, uint32_t dev_minor);

-/* Use this to retrieve target information returned from a STATUS call */
+/* Use this to retrive target information returned from a STATUS call */
 void *dm_get_next_target(struct dm_task *dmt,
 			 void *next, uint64_t *start, uint64_t *length,
 			 char **target_type, char **params);

 /*
- * Following dm_get_status_* functions will allocate appropriate status structure
+ * Following dm_get_status_* functions will allocate approriate status structure
 * from passed mempool together with the necessary character arrays.
- * Destroying the mempool will release all associated allocation.
+ * Destroying the mempool will release all asociated allocation.
 */

 /* Parse params from STATUS call for mirror target */
@ -541,7 +549,7 @@ const char *dm_sysfs_dir(void);

 /*
 * Configure default UUID prefix string.
- * Conventionally this is a short capitalized prefix indicating the subsystem
+ * Conventionally this is a short capitalised prefix indicating the subsystem
 * that is managing the devices, e.g. "LVM-" or "MPATH-".
 * To support stacks of devices from different subsystems, recursive functions
 * stop recursing if they reach a device with a different prefix.
@ -584,7 +592,7 @@ int dm_device_has_mounted_fs(uint32_t major, uint32_t minor);


 /*
- * Callback is invoked for individual mountinfo lines,
+ * Callback is invoked for individal mountinfo lines,
 * minor, major and mount target are parsed and unmangled.
 */
 typedef int (*dm_mountinfo_line_callback_fn) (char *line, unsigned maj, unsigned min,
@ -698,7 +706,7 @@ void *dm_tree_node_get_context(const struct dm_tree_node *node);
 /*
 * Returns  0 when node size and its children is unchanged.
 * Returns  1 when node or any of its children has increased size.
- * Returns -1 when node or any of its children has reduced size.
+ * Rerurns -1 when node or any of its children has reduced size.
 */
 int dm_tree_node_size_changed(const struct dm_tree_node *dnode);

@ -885,7 +893,7 @@ struct dm_tree_node_raid_params {
 };

 /*
- * Version 2 of above node raid params struct to keep API compatibility.
+ * Version 2 of above node raid params struct to keeep API compatibility.
 *
 * Extended for more than 64 legs (max 253 in the MD kernel runtime!),
 * delta_disks for disk add/remove reshaping,
@ -908,7 +916,7 @@ struct dm_tree_node_raid_params_v2 {
 	 * 'rebuilds' and 'writemostly' are bitfields that signify
 	 * which devices in the array are to be rebuilt or marked
 	 * writemostly.  The kernel supports up to 253 legs.
-	 * We limit ourselves by choosing a lower value
+	 * We limit ourselvs by choosing a lower value
 	 * for DEFAULT_RAID_MAX_IMAGES.
 	 */
 	uint64_t rebuilds[RAID_BITMAP_SIZE];
@ -945,7 +953,7 @@ struct dm_config_node;
 *
 * policy_settings {
 *    migration_threshold=2048
- *    sequential_threshold=100
+ *    sequention_threashold=100
 *    ...
 * }
 *
@ -974,9 +982,7 @@ struct writecache_settings {
 	uint32_t fua;
 	uint32_t nofua;
 	uint32_t cleaner;
-	uint32_t max_age;         /* in milliseconds */
-	uint32_t metadata_only;
-	uint32_t pause_writeback; /* in milliseconds */
+	uint32_t max_age;

 	/*
 	 * Allow an unrecognized key and its val to be passed to the kernel for
@ -998,8 +1004,6 @@ struct writecache_settings {
 	unsigned nofua_set:1;
 	unsigned cleaner_set:1;
 	unsigned max_age_set:1;
-	unsigned metadata_only_set:1;
-	unsigned pause_writeback_set:1;
 };

 int dm_tree_node_add_writecache_target(struct dm_tree_node *node,
@ -1023,7 +1027,6 @@ struct integrity_settings {
 	uint32_t commit_time;
 	uint32_t bitmap_flush_interval;
 	uint64_t sectors_per_bit;
-	uint32_t allow_discards;

 	unsigned journal_sectors_set:1;
 	unsigned interleave_sectors_set:1;
@ -1032,7 +1035,6 @@ struct integrity_settings {
 	unsigned commit_time_set:1;
 	unsigned bitmap_flush_interval_set:1;
 	unsigned sectors_per_bit_set:1;
-	unsigned allow_discards_set:1;
 };

 int dm_tree_node_add_integrity_target(struct dm_tree_node *node,
@ -1047,7 +1049,6 @@ int dm_tree_node_add_integrity_target(struct dm_tree_node *node,
 */
 int dm_tree_node_add_vdo_target(struct dm_tree_node *node,
 				uint64_t size,
-				uint32_t vdo_version,
 				const char *vdo_pool_name,
 				const char *data_uuid,
 				uint64_t data_size,
@ -1094,7 +1095,7 @@ int dm_tree_node_add_replicator_dev_target(struct dm_tree_node *node,
 /* End of Replicator API */

 /*
- * FIXME: Defines below are based on kernel's dm-thin.c defines
+ * FIXME: Defines bellow are based on kernel's dm-thin.c defines
 * DATA_DEV_BLOCK_SIZE_MIN_SECTORS (64 * 1024 >> SECTOR_SHIFT)
 * DATA_DEV_BLOCK_SIZE_MAX_SECTORS (1024 * 1024 * 1024 >> SECTOR_SHIFT)
 */
@ -1160,7 +1161,7 @@ int dm_tree_node_set_thin_pool_error_if_no_space(struct dm_tree_node *node,
 int dm_tree_node_set_thin_pool_read_only(struct dm_tree_node *node,
 					 unsigned read_only);
 /*
- * FIXME: Defines below are based on kernel's dm-thin.c defines
+ * FIXME: Defines bellow are based on kernel's dm-thin.c defines
 * MAX_DEV_ID ((1 << 24) - 1)
 */
 #define DM_THIN_MAX_DEVICE_ID (UINT32_C((1 << 24) - 1))
@ -1869,7 +1870,6 @@ const void *dm_report_value_cache_get(struct dm_report *rh, const char *name);
 #define DM_REPORT_OUTPUT_FIELD_UNQUOTED		0x00000010
 #define DM_REPORT_OUTPUT_COLUMNS_AS_ROWS	0x00000020
 #define DM_REPORT_OUTPUT_MULTIPLE_TIMES		0x00000040
-#define DM_REPORT_OUTPUT_FIELD_IDS_IN_HEADINGS	0x00000080

 struct dm_report *dm_report_init(uint32_t *report_types,
 				 const struct dm_report_object_type *types,
@ -1982,8 +1982,7 @@ struct dm_report_group;
 typedef enum {
 	DM_REPORT_GROUP_SINGLE,
 	DM_REPORT_GROUP_BASIC,
-	DM_REPORT_GROUP_JSON,
-	DM_REPORT_GROUP_JSON_STD
+	DM_REPORT_GROUP_JSON
 } dm_report_group_type_t;

 struct dm_report_group *dm_report_group_create(dm_report_group_type_t type, void *data);
@ -2058,7 +2057,7 @@ void dm_config_destroy(struct dm_config_tree *cft);

 /* Simple output line by line. */
 typedef int (*dm_putline_fn)(const char *line, void *baton);
-/* More advanced output with config node reference. */
+/* More advaced output with config node reference. */
 typedef int (*dm_config_node_out_fn)(const struct dm_config_node *cn, const char *line, void *baton);

 /*
@ -2121,7 +2120,7 @@ struct dm_config_node *dm_config_clone_node(struct dm_config_tree *cft, const st
 * Common formatting flags applicable to all config node types (lower 16 bits).
 */
 #define DM_CONFIG_VALUE_FMT_COMMON_ARRAY             0x00000001 /* value is array */
-#define DM_CONFIG_VALUE_FMT_COMMON_EXTRA_SPACES      0x00000002 /* add spaces in "key = value" pairs in contrast to "key=value" for better readability */
+#define DM_CONFIG_VALUE_FMT_COMMON_EXTRA_SPACES      0x00000002 /* add spaces in "key = value" pairs in constrast to "key=value" for better readability */

 /*
 * Type-related config node formatting flags (higher 16 bits).
@ -2167,7 +2166,7 @@ struct dm_pool *dm_config_memory(struct dm_config_tree *cft);
 */
 #define DM_UDEV_DISABLE_DM_RULES_FLAG 0x0001
 /*
- * DM_UDEV_DISABLE_SUBSYSTEM_RULES_FLAG is set in case we need to disable
+ * DM_UDEV_DISABLE_SUBSYTEM_RULES_FLAG is set in case we need to disable
 * subsystem udev rules, but still we need the general DM udev rules to
 * be applied (to create the nodes and symlinks under /dev and /dev/disk).
 */
@ -2238,7 +2237,7 @@ struct dm_pool *dm_config_memory(struct dm_config_tree *cft);
 int dm_cookie_supported(void);

 /*
- * Udev synchronization functions.
+ * Udev synchronisation functions.
 */
 void dm_udev_set_sync_support(int sync_with_udev);
 int dm_udev_get_sync_support(void);
--- a/device_mapper/ioctl/libdm-iface.c
+++ b/device_mapper/ioctl/libdm-iface.c
@ -87,8 +87,10 @@ static int _version_checked = 0;
 static int _version_ok = 1;
 static unsigned _ioctl_buffer_double_factor = 0;

+const int _dm_compat = 0;
+
 /* *INDENT-OFF* */
-static const struct cmd_data _cmd_data_v4[] = {
+static struct cmd_data _cmd_data_v4[] = {
 	{"create",	DM_DEV_CREATE,		{4, 0, 0}},
 	{"reload",	DM_TABLE_LOAD,		{4, 0, 0}},
 	{"remove",	DM_DEV_REMOVE,		{4, 0, 0}},
@ -137,6 +139,7 @@ static char *_align(char *ptr, unsigned int a)
 	return (char *) (((unsigned long) ptr + agn) & ~agn);
 }

+#ifdef DM_IOCTLS
 static unsigned _kernel_major = 0;
 static unsigned _kernel_minor = 0;
 static unsigned _kernel_release = 0;
@ -179,9 +182,6 @@ int get_uname_version(unsigned *major, unsigned *minor, unsigned *release)

 	return 1;
 }
-
-#ifdef DM_IOCTLS
-
 /*
 * Set number to NULL to populate _dm_bitset - otherwise first
 * match is returned.
@ -198,7 +198,6 @@ static int _get_proc_number(const char *file, const char *name,
 	char *line = NULL;
 	size_t len;
 	uint32_t num;
-	unsigned blocksection = (strcmp(file, PROC_DEVICES) == 0) ? 0 : 1;

 	if (!(fl = fopen(file, "r"))) {
 		log_sys_error("fopen", file);
@ -206,9 +205,7 @@ static int _get_proc_number(const char *file, const char *name,
 	}

 	while (getline(&line, &len, fl) != -1) {
-		if (!blocksection && (line[0] == 'B'))
-			blocksection = 1;
-		else if (sscanf(line, "%u %255s\n", &num, &nm[0]) == 2) {
+		if (sscanf(line, "%u %255s\n", &num, &nm[0]) == 2) {
 			if (!strcmp(name, nm)) {
 				if (number) {
 					*number = num;
@ -248,16 +245,6 @@ static int _control_device_number(uint32_t *major, uint32_t *minor)
 	return 1;
 }

-static int _control_unlink(const char *control)
-{
-	if (unlink(control) && (errno != ENOENT)) {
-		log_sys_error("unlink", control);
-		return -1;
-	}
-
-	return 0;
-}
-
 /*
 * Returns 1 if it exists on returning; 0 if it doesn't; -1 if it's wrong.
 */
@ -273,7 +260,10 @@ static int _control_exists(const char *control, uint32_t major, uint32_t minor)

 	if (!S_ISCHR(buf.st_mode)) {
 		log_verbose("%s: Wrong inode type", control);
-		return _control_unlink(control);
+		if (!unlink(control))
+			return 0;
+		log_sys_error("unlink", control);
+		return -1;
 	}

 	if (major && buf.st_rdev != MKDEV(major, minor)) {
@ -281,7 +271,10 @@ static int _control_exists(const char *control, uint32_t major, uint32_t minor)
 			    "(%u, %u)", control,
 			    MAJOR(buf.st_mode), MINOR(buf.st_mode),
 			    major, minor);
-		return _control_unlink(control);
+		if (!unlink(control))
+			return 0;
+		log_sys_error("unlink", control);
+		return -1;
 	}

 	return 1;
@ -317,13 +310,8 @@ static int _create_control(const char *control, uint32_t major, uint32_t minor)
 	old_umask = umask(DM_CONTROL_NODE_UMASK);
 	if (mknod(control, S_IFCHR | S_IRUSR | S_IWUSR,
 		  MKDEV(major, minor)) < 0)  {
-		if (errno != EEXIST) {
-			log_sys_error("mknod", control);
-			ret = 0;
-		} else if (_control_exists(control, major, minor) != 1) {
-			stack; /* Invalid control node created by parallel command ? */
-			ret = 0;
-		}
+		log_sys_error("mknod", control);
+		ret = 0;
 	}
 	umask(old_umask);
 	(void) dm_prepare_selinux_context(NULL, 0);
@ -409,7 +397,7 @@ static void _close_control_fd(void)
 {
 	if (_control_fd != -1) {
 		if (close(_control_fd) < 0)
-			log_sys_debug("close", "_control_fd");
+			log_sys_error("close", "_control_fd");
 		_control_fd = -1;
 	}
 }
@ -598,9 +586,23 @@ int dm_check_version(void)

 	_version_checked = 1;

-	if (_check_version(dmversion, sizeof(dmversion), 0))
+	if (_check_version(dmversion, sizeof(dmversion), _dm_compat))
 		return 1;

+	if (!_dm_compat)
+		goto_bad;
+
+	log_verbose("device-mapper ioctl protocol version %u failed. "
+		    "Trying protocol version 1.", _dm_version);
+	_dm_version = 1;
+	if (_check_version(dmversion, sizeof(dmversion), 0)) {
+		log_verbose("Using device-mapper ioctl protocol version 1");
+		return 1;
+	}
+
+	compat = "(compat)";
+
+      bad:
 	dm_get_library_version(libversion, sizeof(libversion));

 	log_error("Incompatible libdevmapper %s%s and kernel driver %s.",
@ -659,7 +661,7 @@ void *dm_get_next_target(struct dm_task *dmt, void *next,
 	return t->next;
 }

-/* Unmarshal the target info returned from a status call */
+/* Unmarshall the target info returned from a status call */
 static int _unmarshal_status(struct dm_task *dmt, struct dm_ioctl *dmi)
 {
 	char *outbuf = (char *) dmi + dmi->data_start;
@ -748,11 +750,6 @@ uint32_t dm_task_get_read_ahead(const struct dm_task *dmt, uint32_t *read_ahead)

 struct dm_deps *dm_task_get_deps(struct dm_task *dmt)
 {
-	if (!dmt) {
-		log_error(INTERNAL_ERROR "Missing dm_task.");
-		return NULL;
-	}
-
 	return (struct dm_deps *) (((char *) dmt->dmi.v4) +
 				   dmt->dmi.v4->data_start);
 }
@ -782,12 +779,19 @@ static int _check_has_event_nr(void) {
 	return _has_event_nr;
 }

+struct dm_device_list {
+	struct dm_list list;
+	unsigned count;
+	unsigned features;
+	struct dm_hash_table *uuids;
+};
+
 int dm_task_get_device_list(struct dm_task *dmt, struct dm_list **devs_list,
 			    unsigned *devs_features)
 {
 	struct dm_names *names, *names1;
 	struct dm_active_device *dm_dev, *dm_new_dev;
-	struct dm_list *devs;
+	struct dm_device_list *devs;
 	unsigned next = 0;
 	uint32_t *event_nr;
 	char *uuid_ptr;
@ -808,12 +812,12 @@ int dm_task_get_device_list(struct dm_task *dmt, struct dm_list **devs_list,
 		} while (next);
 	}

-	/* buffer for devs +  sorted ptrs + dm_devs + aligned strings */
-	if (!(devs = malloc(sizeof(*devs) + cnt * (2 * sizeof(void*) + sizeof(*dm_dev)) +
-			    (cnt ? (char*)names1 - (char*)names + 256 : 0))))
+	if (!(devs = malloc(sizeof(*devs) + (cnt ? cnt * sizeof(*dm_dev) + (char*)names1 - (char*)names + 256 : 0))))
 		return_0;

-	dm_list_init(devs);
+	dm_list_init(&devs->list);
+	devs->count = cnt;
+	devs->uuids = NULL;

 	if (!cnt) {
 		/* nothing in the list -> mark all features present */
@ -821,22 +825,27 @@ int dm_task_get_device_list(struct dm_task *dmt, struct dm_list **devs_list,
 		goto out; /* nothing else to do */
 	}

-	/* Shift position where to store individual dm_devs */
-	dm_dev = (struct dm_active_device *) ((long*) (devs + 1) + cnt);
+	dm_dev = (struct dm_active_device *) (devs + 1);

 	do {
 		names = (struct dm_names *)((char *) names + next);

-		dm_dev->devno = (dev_t) names->dev;
-		dm_dev->name = (const char *)(dm_dev + 1);
+		dm_dev->major = MAJOR(names->dev);
+		dm_dev->minor = MINOR(names->dev);
+		dm_dev->name = (char*)(dm_dev + 1);
 		dm_dev->event_nr = 0;
-		dm_dev->uuid = "";
+		dm_dev->uuid = NULL;

+		strcpy(dm_dev->name, names->name);
 		len = strlen(names->name) + 1;
-		memcpy((char*)dm_dev->name, names->name, len);

 		dm_new_dev = _align_ptr((char*)(dm_dev + 1) + len);
 		if (_check_has_event_nr()) {
+			/* Hash for UUIDs with some more bits to reduce colision count */
+			if (!devs->uuids && !(devs->uuids = dm_hash_create(cnt * 8))) {
+				free(devs);
+				return_0;
+			}

 			*devs_features |= DM_DEVICE_LIST_HAS_EVENT_NR;
 			event_nr = _align_ptr(names->name + len);
@ -845,29 +854,54 @@ int dm_task_get_device_list(struct dm_task *dmt, struct dm_list **devs_list,
 			if ((event_nr[1] & DM_NAME_LIST_FLAG_HAS_UUID)) {
 				*devs_features |= DM_DEVICE_LIST_HAS_UUID;
 				uuid_ptr = _align_ptr(event_nr + 2);
-				len = strlen(uuid_ptr) + 1;
-				memcpy(dm_new_dev, uuid_ptr, len);
-				dm_dev->uuid = (const char *) dm_new_dev;
-				dm_new_dev = _align_ptr((char*)dm_new_dev + len);
+				dm_dev->uuid = (char*) dm_new_dev;
+				dm_new_dev = _align_ptr((char*)dm_new_dev + strlen(uuid_ptr) + 1);
+				strcpy(dm_dev->uuid, uuid_ptr);
+				if (!dm_hash_insert(devs->uuids, dm_dev->uuid, dm_dev))
+					return_0; // FIXME
+#if 0
+				log_debug("Active %s (%s) %d:%d event:%u",
+					  dm_dev->name, dm_dev->uuid,
+					  dm_dev->major, dm_dev->minor, dm_dev->event_nr);
+#endif
 			}
 		}

-		dm_list_add(devs, &dm_dev->list);
+		dm_list_add(&devs->list, &dm_dev->list);
 		dm_dev = dm_new_dev;
 		next = names->next;
 	} while (next);

    out:
-	*devs_list = devs;
+	*devs_list = (struct dm_list *)devs;

 	return 1;
 }

+int dm_device_list_find_by_uuid(struct dm_list *devs_list, const char *uuid,
+				const struct dm_active_device **dev)
+{
+	struct dm_device_list *devs = (struct dm_device_list *) devs_list;
+	struct dm_active_device *dm_dev;
+
+	if (devs->uuids &&
+	    (dm_dev = dm_hash_lookup(devs->uuids, uuid))) {
+		if (dev)
+			*dev = dm_dev;
+		return 1;
+	}
+
+	return 0;
+}
+
 void dm_device_list_destroy(struct dm_list **devs_list)
 {
 	struct dm_device_list *devs = (struct dm_device_list *) *devs_list;

 	if (devs) {
+		if (devs->uuids)
+			dm_hash_destroy(devs->uuids);
+
 		free(devs);
 		*devs_list = NULL;
 	}
@ -1160,10 +1194,9 @@ static char *_add_target(struct target *t, char *out, char *end)
 	while (*pt)
 		if (*pt++ == '\\')
 			backslash_count++;
+	len = strlen(t->params) + backslash_count;

-	len = strlen(t->params) + 1;
-
-	if ((out >= end) || (out + len + backslash_count) >= end) {
+	if ((out >= end) || (out + len + 1) >= end) {
 		log_error("Ran out of memory building ioctl parameter");
 		return NULL;
 	}
@ -1179,8 +1212,8 @@ static char *_add_target(struct target *t, char *out, char *end)
 		*out++ = '\0';
 	}
 	else {
-		memcpy(out, t->params, len);
-		out += len + backslash_count;
+		strcpy(out, t->params);
+		out += len + 1;
 	}

 	/* align next block */
@ -1214,7 +1247,7 @@ static int _lookup_dev_name(uint64_t dev, char *buf, size_t len)
 	do {
 		names = (struct dm_names *)((char *) names + next);
 		if (names->dev == dev) {
-			memccpy(buf, names->name, 0, len);
+			strncpy(buf, names->name, len);
 			r = 1;
 			break;
 		}
@ -1251,7 +1284,6 @@ static struct dm_ioctl *_flatten(struct dm_task *dmt, unsigned repeat_count)
 	struct target *t;
 	struct dm_target_msg *tmsg;
 	size_t len = sizeof(struct dm_ioctl);
-	size_t message_len = 0, newname_len = 0, geometry_len = 0;
 	char *b, *e;
 	int count = 0;

@ -1312,20 +1344,14 @@ static struct dm_ioctl *_flatten(struct dm_task *dmt, unsigned repeat_count)
 		return NULL;
 	}

-	if (dmt->newname) {
-		newname_len = strlen(dmt->newname) + 1;
-		len += newname_len;
-	}
+	if (dmt->newname)
+		len += strlen(dmt->newname) + 1;

-	if (dmt->message) {
-		message_len = strlen(dmt->message) + 1;
-		len += sizeof(struct dm_target_msg) + message_len;
-	}
+	if (dmt->message)
+		len += sizeof(struct dm_target_msg) + strlen(dmt->message) + 1;

-	if (dmt->geometry) {
-		geometry_len = strlen(dmt->geometry) + 1;
-		len += geometry_len;
-	}
+	if (dmt->geometry)
+		len += strlen(dmt->geometry) + 1;

 	/*
 	 * Give len a minimum size so that we have space to store
@ -1383,10 +1409,12 @@ static struct dm_ioctl *_flatten(struct dm_task *dmt, unsigned repeat_count)
 	/* FIXME Until resume ioctl supplies name, use dev_name for readahead */
 	if (DEV_NAME(dmt) && (dmt->type != DM_DEVICE_RESUME || dmt->minor < 0 ||
 			      dmt->major < 0))
-		memccpy(dmi->name, DEV_NAME(dmt), 0, sizeof(dmi->name));
+		/* coverity[buffer_size_warning] */
+		strncpy(dmi->name, DEV_NAME(dmt), sizeof(dmi->name));

 	if (DEV_UUID(dmt))
-		memccpy(dmi->uuid, DEV_UUID(dmt), 0, sizeof(dmi->uuid));
+		/* coverity[buffer_size_warning] */
+		strncpy(dmi->uuid, DEV_UUID(dmt), sizeof(dmi->uuid));

 	if (dmt->type == DM_DEVICE_SUSPEND)
 		dmi->flags |= DM_SUSPEND_FLAG;
@ -1445,16 +1473,16 @@ static struct dm_ioctl *_flatten(struct dm_task *dmt, unsigned repeat_count)
 				goto_bad;

 	if (dmt->newname)
-		memcpy(b, dmt->newname, newname_len);
+		strcpy(b, dmt->newname);

 	if (dmt->message) {
 		tmsg = (struct dm_target_msg *) b;
 		tmsg->sector = dmt->sector;
-		memcpy(tmsg->message, dmt->message, message_len);
+		strcpy(tmsg->message, dmt->message);
 	}

 	if (dmt->geometry)
-		memcpy(b, dmt->geometry, geometry_len);
+		strcpy(b, dmt->geometry);

 	return dmi;

@ -1576,7 +1604,7 @@ static int _check_uevent_generated(struct dm_ioctl *dmi)
 static int _create_and_load_v4(struct dm_task *dmt)
 {
 	struct dm_task *task;
-	int r, ioctl_errno = 0;
+	int r;
 	uint32_t cookie;

 	/* Use new task struct to create the device */
@ -1602,10 +1630,8 @@ static int _create_and_load_v4(struct dm_task *dmt)
 	task->cookie_set = dmt->cookie_set;
 	task->add_node = dmt->add_node;

-	if (!dm_task_run(task)) {
-		ioctl_errno = task->ioctl_errno;
+	if (!dm_task_run(task))
 		goto_bad;
-	}

 	dm_task_destroy(task);

@ -1631,8 +1657,6 @@ static int _create_and_load_v4(struct dm_task *dmt)
 	task->ima_measurement = dmt->ima_measurement;

 	r = dm_task_run(task);
-	if (!r)
-		ioctl_errno = task->ioctl_errno;

 	task->head = NULL;
 	task->tail = NULL;
@ -1650,7 +1674,6 @@ static int _create_and_load_v4(struct dm_task *dmt)
 	dmt->uuid = NULL;
 	free(dmt->mangled_uuid);
 	dmt->mangled_uuid = NULL;
-	/* coverity[double_free] recursive function call */
 	_dm_task_free_targets(dmt);

 	if (dm_task_run(dmt))
@ -1662,7 +1685,6 @@ static int _create_and_load_v4(struct dm_task *dmt)
 	dmt->uuid = NULL;
 	free(dmt->mangled_uuid);
 	dmt->mangled_uuid = NULL;
-	/* coverity[double_free] recursive function call */
 	_dm_task_free_targets(dmt);

 	/*
@ -1681,18 +1703,12 @@ static int _create_and_load_v4(struct dm_task *dmt)
 	if (!dm_task_run(dmt))
 		log_error("Failed to revert device creation.");

-	if (ioctl_errno != 0)
-		dmt->ioctl_errno =  ioctl_errno;
-
 	return 0;

      bad:
 	dm_task_destroy(task);
 	_udev_complete(dmt);

-	if (ioctl_errno != 0)
-		dmt->ioctl_errno =  ioctl_errno;
-
 	return 0;
 }

@ -2034,7 +2050,7 @@ static struct dm_ioctl *_do_dm_ioctl(struct dm_task *dmt, unsigned command,
 		/*
 		 * Prevent udev vs. libdevmapper race when processing nodes
 		 * and symlinks. This can happen when the udev rules are
-		 * installed and udev synchronization code is enabled in
+		 * installed and udev synchronisation code is enabled in
 		 * libdevmapper but the software using libdevmapper does not
 		 * make use of it (by not calling dm_task_set_cookie before).
 		 * We need to instruct the udev rules not to be applied at
@ -2044,7 +2060,7 @@ static struct dm_ioctl *_do_dm_ioctl(struct dm_task *dmt, unsigned command,
 		if (!dmt->cookie_set && dm_udev_get_sync_support()) {
 			log_debug_activation("Cookie value is not set while trying to call %s "
 					     "ioctl. Please, consider using libdevmapper's udev "
-					     "synchronization interface or disable it explicitly "
+					     "synchronisation interface or disable it explicitly "
 					     "by calling dm_udev_set_sync_support(0).",
 					     dmt->type == DM_DEVICE_RESUME ? "DM_DEVICE_RESUME" :
 					     dmt->type == DM_DEVICE_REMOVE ? "DM_DEVICE_REMOVE" :
--- a/device_mapper/ioctl/libdm-targets.h
+++ b/device_mapper/ioctl/libdm-targets.h
@ -79,7 +79,7 @@ struct dm_task {
 };

 struct cmd_data {
-	const char name[16];
+	const char *name;
 	const unsigned cmd;
 	const int version[3];
 };
--- a/device_mapper/libdm-common.c
+++ b/device_mapper/libdm-common.c
@ -537,8 +537,7 @@ int unmangle_string(const char *str, const char *str_name, size_t len,
 		}

 		if (str[i] == '\\' && str[i+1] == 'x') {
-			if (!sscanf(&str[i+2], "%2x%" DM_TO_STRING(DM_NAME_LEN) "s",
-				    &code, str_rest)) {
+			if (!sscanf(&str[i+2], "%2x%s", &code, str_rest)) {
 				log_debug_activation("Hex encoding mismatch detected in %s \"%s\" "
 						     "while trying to unmangle it.", str_name, str);
 				goto out;
@ -1061,8 +1060,9 @@ static int _add_dev_node(const char *dev_name, uint32_t major, uint32_t minor,
 		if (info.st_rdev == dev)
 			return 1;

-		if (unlink(path) && (errno != ENOENT)) {
-			log_sys_error("unlink", path);
+		if (unlink(path) < 0) {
+			log_error("Unable to unlink device node for '%s'",
+				  dev_name);
 			return 0;
 		}
 	} else if (_warn_if_op_needed(warn_if_udev_failed))
@ -1106,8 +1106,8 @@ static int _rm_dev_node(const char *dev_name, int warn_if_udev_failed)
 			 "Falling back to direct node removal.", path);

 	/* udev may already have deleted the node. Ignore ENOENT. */
-	if (unlink(path) && (errno != ENOENT)) {
-		log_sys_error("unlink", path);
+	if (unlink(path) < 0 && errno != ENOENT) {
+		log_error("Unable to unlink device node for '%s'", dev_name);
 		return 0;
 	}

@ -1451,10 +1451,9 @@ struct node_op_parms {

 static void _store_str(char **pos, char **ptr, const char *str)
 {
-	size_t len = strlen(str) + 1;
-	memcpy(*pos, str, len);
+	strcpy(*pos, str);
 	*ptr = *pos;
-	*pos += len;
+	*pos += strlen(*ptr) + 1;
 }

 static void _del_node_op(struct node_op_parms *nop)
@ -1704,17 +1703,15 @@ const char *dm_sysfs_dir(void)
 */
 int dm_set_uuid_prefix(const char *uuid_prefix)
 {
-	size_t len;
-
 	if (!uuid_prefix)
 		return_0;

-	if ((len = strlen(uuid_prefix)) > DM_MAX_UUID_PREFIX_LEN) {
+	if (strlen(uuid_prefix) > DM_MAX_UUID_PREFIX_LEN) {
 		log_error("New uuid prefix %s too long.", uuid_prefix);
 		return 0;
 	}

-	memcpy(_default_uuid_prefix, uuid_prefix, len + 1);
+	strcpy(_default_uuid_prefix, uuid_prefix);

 	return 1;
 }
@ -1743,9 +1740,6 @@ static void _unmangle_mountinfo_string(const char *src, char *buf)
 	*buf = '\0';
 }

-/* coverity[+tainted_string_sanitize_content:arg-0] */
-static int _sanitize_line(const char *line) { return 1; }
-
 /* Parse one line of mountinfo and unmangled target line */
 static int _mountinfo_parse_line(const char *line, unsigned *maj, unsigned *min, char *buf)
 {
@ -1796,7 +1790,7 @@ static int _mountinfo_parse_line(const char *line, unsigned *maj, unsigned *min,
 }

 /*
- * Function to operate on individual mountinfo line,
+ * Function to operate on individal mountinfo line,
 * minor, major and mount target are parsed and unmangled
 */
 int dm_mountinfo_read(dm_mountinfo_line_callback_fn read_fn, void *cb_data)
@ -1816,8 +1810,7 @@ int dm_mountinfo_read(dm_mountinfo_line_callback_fn read_fn, void *cb_data)
 	}

 	while (!feof(minfo) && fgets(buffer, sizeof(buffer), minfo))
-		if (!_sanitize_line(buffer) ||
-		    !_mountinfo_parse_line(buffer, &maj, &min, target) ||
+		if (!_mountinfo_parse_line(buffer, &maj, &min, target) ||
 		    !read_fn(buffer, maj, min, target, cb_data)) {
 			stack;
 			r = 0;
@ -1961,7 +1954,7 @@ static int _sysfs_find_kernel_name(uint32_t major, uint32_t minor, char *buf, si
 				    !strcmp(name_dev, "holders") ||
 				    !strcmp(name_dev, "integrity") ||
 				    !strcmp(name_dev, "loop") ||
-				    !strcmp(name_dev, "queue") ||
+				    !strcmp(name_dev, "queueu") ||
 				    !strcmp(name_dev, "md") ||
 				    !strcmp(name_dev, "mq") ||
 				    !strcmp(name_dev, "power") ||
@ -2318,7 +2311,7 @@ static int _check_semaphore_is_supported(void)

 	if (maxid < 0) {
 		log_warn("Kernel not configured for semaphores (System V IPC). "
-			 "Not using udev synchronization code.");
+			 "Not using udev synchronisation code.");
 		return 0;
 	}

@ -2341,7 +2334,7 @@ static int _check_udev_is_running(void)

 	if (!(r = udev_queue_get_udev_is_active(udev_queue)))
 		log_debug_activation("Udev is not running. "
-				     "Not using udev synchronization code.");
+				     "Not using udev synchronisation code.");

 	udev_queue_unref(udev_queue);
 	udev_unref(udev);
@ -2416,7 +2409,7 @@ static int _get_cookie_sem(uint32_t cookie, int *semid)
 			break;
 		case EACCES:
 			log_error("No permission to access "
-				  "notification semaphore identified "
+				  "notificaton semaphore identified "
 				  "by cookie value %" PRIu32 " (0x%x)",
 				  cookie, cookie);
 			break;
@ -2437,20 +2430,20 @@ static int _udev_notify_sem_inc(uint32_t cookie, int semid)
 	int val;

 	if (semop(semid, &sb, 1) < 0) {
-		log_error("cookie inc: semid %d: semop failed for cookie 0x%" PRIx32 ": %s",
+		log_error("semid %d: semop failed for cookie 0x%" PRIx32 ": %s",
 			  semid, cookie, strerror(errno));
 		return 0;
 	}

 	if ((val = semctl(semid, 0, GETVAL)) < 0) {
-		log_warn("cookie inc: semid %d: sem_ctl GETVAL failed for "
+		log_error("semid %d: sem_ctl GETVAL failed for "
 			  "cookie 0x%" PRIx32 ": %s",
 			  semid, cookie, strerror(errno));
-		log_debug_activation("Udev cookie 0x%" PRIx32 " (semid %d) incremented.",
-				      cookie, semid);
-	} else
-		log_debug_activation("Udev cookie 0x%" PRIx32 " (semid %d) incremented to %d",
-				     cookie, semid, val);
+		return 0;		
+	}
+
+	log_debug_activation("Udev cookie 0x%" PRIx32 " (semid %d) incremented to %d",
+		  cookie, semid, val);

 	return 1;
 }
@ -2460,21 +2453,23 @@ static int _udev_notify_sem_dec(uint32_t cookie, int semid)
 	struct sembuf sb = {0, -1, IPC_NOWAIT};
 	int val;

- 	if ((val = semctl(semid, 0, GETVAL)) < 0)
-		log_warn("cookie dec: semid %d: sem_ctl GETVAL failed for "
-			 "cookie 0x%" PRIx32 ": %s",
-			 semid, cookie, strerror(errno));
+ 	if ((val = semctl(semid, 0, GETVAL)) < 0) {
+		log_error("semid %d: sem_ctl GETVAL failed for "
+			  "cookie 0x%" PRIx32 ": %s",
+			  semid, cookie, strerror(errno));
+		return 0;
+	}

 	if (semop(semid, &sb, 1) < 0) {
 		switch (errno) {
 			case EAGAIN:
-				log_error("cookie dec: semid %d: semop failed for cookie "
+				log_error("semid %d: semop failed for cookie "
 					  "0x%" PRIx32 ": "
 					  "incorrect semaphore state",
 					  semid, cookie);
 				break;
 			default:
-				log_error("cookie dec: semid %d: semop failed for cookie "
+				log_error("semid %d: semop failed for cookie "
 					  "0x%" PRIx32 ": %s",
 					  semid, cookie, strerror(errno));
 				break;
@ -2482,12 +2477,9 @@ static int _udev_notify_sem_dec(uint32_t cookie, int semid)
 		return 0;
 	}

-	if (val < 0)
-		log_debug_activation("Udev cookie 0x%" PRIx32 " (semid %d) decremented.",
-				     cookie, semid);
-	else
-		log_debug_activation("Udev cookie 0x%" PRIx32 " (semid %d) decremented to %d",
-				     cookie, semid, val - 1);
+	log_debug_activation("Udev cookie 0x%" PRIx32 " (semid %d) decremented to %d",
+			     cookie, semid, val - 1);
+
 	return 1;
 }

@ -2564,7 +2556,7 @@ static int _udev_notify_sem_create(uint32_t *cookie, int *semid)
 	sem_arg.val = 1;

 	if (semctl(gen_semid, 0, SETVAL, sem_arg) < 0) {
-		log_error("cookie create: semid %d: semctl failed: %s", gen_semid, strerror(errno));
+		log_error("semid %d: semctl failed: %s", gen_semid, strerror(errno));
 		/* We have to destroy just created semaphore
 		 * so it won't stay in the system. */
 		(void) _udev_notify_sem_destroy(gen_cookie, gen_semid);
@ -2572,10 +2564,9 @@ static int _udev_notify_sem_create(uint32_t *cookie, int *semid)
 	}

 	if ((val = semctl(gen_semid, 0, GETVAL)) < 0) {
-		log_error("cookie create: semid %d: sem_ctl GETVAL failed for "
+		log_error("semid %d: sem_ctl GETVAL failed for "
 			  "cookie 0x%" PRIx32 ": %s",
 			  gen_semid, gen_cookie, strerror(errno));
-		(void) _udev_notify_sem_destroy(gen_cookie, gen_semid);
 		goto bad;
 	}

--- a/device_mapper/libdm-config.c
+++ b/device_mapper/libdm-config.c
@ -70,11 +70,12 @@ static struct dm_config_value *_value(struct parser *p);
 static struct dm_config_value *_type(struct parser *p);
 static int _match_aux(struct parser *p, int t);
 static struct dm_config_value *_create_value(struct dm_pool *mem);
-static struct dm_config_value *_create_str_value(struct dm_pool *mem, const char *str, size_t str_len);
-static struct dm_config_node *_create_node(struct dm_pool *mem, const char *key, size_t key_len);
+static struct dm_config_node *_create_node(struct dm_pool *mem);
 static char *_dup_tok(struct parser *p);
 static char *_dup_token(struct dm_pool *mem, const char *b, const char *e);

+static const int _sep = '/';
+
 #define MAX_INDENT 32

 #define match(t) do {\
@ -85,19 +86,14 @@ static char *_dup_token(struct dm_pool *mem, const char *b, const char *e);
   } \
 } while(0)

-/* match token */
 static int _tok_match(const char *str, const char *b, const char *e)
 {
-	while (b < e) {
-		if (*str != *b)
+	while (*str && (b != e)) {
+		if (*str++ != *b++)
 			return 0;
-		if (!*str)
-			return 0;
-		++str;
-		++b;
 	}

-	return !*str; /* token is matching for \0 end */
+	return !(*str || (b != e));
 }

 struct dm_config_tree *dm_config_create(void)
@ -181,18 +177,19 @@ static int _do_dm_config_parse(struct dm_config_tree *cft, const char *start, co
 {
 	/* TODO? if (start == end) return 1; */

-	struct parser p = {
-		.mem = cft->mem,
-		.tb = start,
-		.te = start,
-		.fb = start,
-		.fe = end,
-		.line = 1,
-		.no_dup_node_check = no_dup_node_check
-	};
+	struct parser *p;
+	if (!(p = dm_pool_zalloc(cft->mem, sizeof(*p))))
+		return_0;

-	_get_token(&p, TOK_SECTION_E);
-	if (!(cft->root = _file(&p)))
+	p->mem = cft->mem;
+	p->fb = start;
+	p->fe = end;
+	p->tb = p->te = p->fb;
+	p->line = 1;
+	p->no_dup_node_check = no_dup_node_check;
+
+	_get_token(p, TOK_SECTION_E);
+	if (!(cft->root = _file(p)))
 		return_0;

 	cft->root = _config_reverse(cft->root);
@ -473,33 +470,23 @@ int dm_config_write_node_out(const struct dm_config_node *cn,
 /*
 * parser
 */
-static const char *_string_tok(struct parser *p, size_t *len)
+static char *_dup_string_tok(struct parser *p)
 {
-	ptrdiff_t d = p->te - p->tb;
+	char *str;

-	if (d < 2) {
+	p->tb++, p->te--;	/* strip "'s */
+
+	if (p->te < p->tb) {
 		log_error("Parse error at byte %" PRIptrdiff_t " (line %d): "
 			  "expected a string token.",
 			  p->tb - p->fb + 1, p->line);
 		return NULL;
 	}

-	*len = (size_t)(d - 2); /* strip "'s */
-
-	return p->tb + 1;
-}
-
-static char *_dup_string_tok(struct parser *p)
-{
-	const char *tok;
-	size_t len;
-	char *str;
-
-	if (!(tok = _string_tok(p, &len)))
+	if (!(str = _dup_tok(p)))
 		return_NULL;

-	if (!(str = _dup_token(p->mem, tok, tok + len)))
-		return_NULL;
+	p->te++;

 	return str;
 }
@ -521,9 +508,10 @@ static struct dm_config_node *_make_node(struct dm_pool *mem,
 {
 	struct dm_config_node *n;

-	if (!(n = _create_node(mem, key_b, key_e - key_b)))
+	if (!(n = _create_node(mem)))
 		return_NULL;

+	n->key = _dup_token(mem, key_b, key_e);
 	if (parent) {
 		n->parent = parent;
 		n->sib = parent->child;
@ -538,18 +526,17 @@ static struct dm_config_node *_find_or_make_node(struct dm_pool *mem,
 						 const char *path,
 						 int no_dup_node_check)
 {
-	const int sep = '/';
 	const char *e;
 	struct dm_config_node *cn = parent ? parent->child : NULL;
 	struct dm_config_node *cn_found = NULL;

 	while (cn || mem) {
 		/* trim any leading slashes */
-		while (*path && (*path == sep))
+		while (*path && (*path == _sep))
 			path++;

 		/* find the end of this segment */
-		for (e = path; *e && (*e != sep); e++) ;
+		for (e = path; *e && (*e != _sep); e++) ;

 		/* hunt for the node */
 		cn_found = NULL;
@ -684,14 +671,16 @@ static struct dm_config_value *_value(struct parser *p)
 static struct dm_config_value *_type(struct parser *p)
 {
 	/* [+-]{0,1}[0-9]+ | [0-9]*\.[0-9]* | ".*" */
-	struct dm_config_value *v;
-	const char *str;
-	size_t len;
+	struct dm_config_value *v = _create_value(p->mem);
+	char *str;
+
+	if (!v) {
+		log_error("Failed to allocate type value");
+		return NULL;
+	}

 	switch (p->t) {
 	case TOK_INT:
-		if (!(v = _create_value(p->mem)))
-			break;
 		v->type = DM_CFG_INT;
 		errno = 0;
 		v->v.i = strtoll(p->tb, NULL, 0);	/* FIXME: check error */
@ -712,8 +701,6 @@ static struct dm_config_value *_type(struct parser *p)
 		break;

 	case TOK_FLOAT:
-		if (!(v = _create_value(p->mem)))
-			break;
 		v->type = DM_CFG_FLOAT;
 		errno = 0;
 		v->v.f = strtod(p->tb, NULL);	/* FIXME: check error */
@ -725,31 +712,31 @@ static struct dm_config_value *_type(struct parser *p)
 		break;

 	case TOK_STRING:
-		if (!(str = _string_tok(p, &len)))
+		v->type = DM_CFG_STRING;
+
+		if (!(v->v.str = _dup_string_tok(p)))
 			return_NULL;

-		if ((v = _create_str_value(p->mem, str, len))) {
-			v->type = DM_CFG_STRING;
-			match(TOK_STRING);
-		}
+		match(TOK_STRING);
 		break;

 	case TOK_STRING_BARE:
-		if ((v = _create_str_value(p->mem, p->tb, p->te - p->tb))) {
-			v->type = DM_CFG_STRING;
-			match(TOK_STRING_BARE);
-		}
+		v->type = DM_CFG_STRING;
+
+		if (!(v->v.str = _dup_tok(p)))
+			return_NULL;
+
+		match(TOK_STRING_BARE);
 		break;

 	case TOK_STRING_ESCAPED:
-		if (!(str = _string_tok(p, &len)))
-			return_NULL;
+		v->type = DM_CFG_STRING;

-		if ((v = _create_str_value(p->mem, str, len))) {
-			v->type = DM_CFG_STRING;
-			dm_unescape_double_quotes((char*)v->v.str);
-			match(TOK_STRING_ESCAPED);
-		}
+		if (!(str = _dup_string_tok(p)))
+			return_NULL;
+		dm_unescape_double_quotes(str);
+		v->v.str = str;
+		match(TOK_STRING_ESCAPED);
 		break;

 	default:
@ -757,12 +744,6 @@ static struct dm_config_value *_type(struct parser *p)
 			  p->tb - p->fb + 1, p->line);
 		return NULL;
 	}
-
-	if (!v) {
-		log_error("Failed to allocate type value.");
-		return NULL;
-	}
-
 	return v;
 }

@ -904,19 +885,16 @@ static void _get_token(struct parser *p, int tok_prev)
 static void _eat_space(struct parser *p)
 {
 	while (p->tb != p->fe) {
-		if (!isspace(*p->te)) {
-			if (*p->te != '#')
-				break;
-
+		if (*p->te == '#')
 			while ((p->te != p->fe) && (*p->te != '\n') && (*p->te))
 				++p->te;
-		}

-		while (p->te != p->fe) {
+		else if (!isspace(*p->te))
+			break;
+
+		while ((p->te != p->fe) && isspace(*p->te)) {
 			if (*p->te == '\n')
 				++p->line;
-			else if (!isspace(*p->te))
-				break;
 			++p->te;
 		}

@ -932,46 +910,9 @@ static struct dm_config_value *_create_value(struct dm_pool *mem)
 	return dm_pool_zalloc(mem, sizeof(struct dm_config_value));
 }

-static struct dm_config_value *_create_str_value(struct dm_pool *mem, const char *str, size_t str_len)
+static struct dm_config_node *_create_node(struct dm_pool *mem)
 {
-	struct dm_config_value *cv;
-	char *str_buf;
-
-	if (!(cv = dm_pool_alloc(mem, sizeof(struct dm_config_value) + str_len + 1)))
-		return_NULL;
-
-	memset(cv, 0, sizeof(*cv));
-
-	if (str) {
-		str_buf = (char *)(cv + 1);
-		if (str_len)
-			memcpy(str_buf, str, str_len);
-		str_buf[str_len] = '\0';
-		cv->v.str = str_buf;
-	}
-
-	return cv;
-}
-
-static struct dm_config_node *_create_node(struct dm_pool *mem, const char *key, size_t key_len)
-{
-	struct dm_config_node *cn;
-	char *key_buf;
-
-	if (!(cn = dm_pool_alloc(mem, sizeof(struct dm_config_node) + key_len + 1)))
-		return_NULL;
-
-	memset(cn, 0, sizeof(*cn));
-
-	if (key) {
-		key_buf = (char *)(cn + 1);
-		if (key_len)
-			memcpy(key_buf, key, key_len);
-		key_buf[key_len] = '\0';
-		cn->key = key_buf;
-	}
-
-	return cn;
+	return dm_pool_zalloc(mem, sizeof(struct dm_config_node));
 }

 static char *_dup_token(struct dm_pool *mem, const char *b, const char *e)
@ -1388,19 +1329,19 @@ static struct dm_config_value *_clone_config_value(struct dm_pool *mem,
 {
 	struct dm_config_value *new_cv;

-	if (v->type == DM_CFG_STRING) {
-		if (!(new_cv = _create_str_value(mem, v->v.str, strlen(v->v.str)))) {
-
-		}
-	} else {
-		if (!(new_cv = _create_value(mem))) {
-			log_error("Failed to clone config value.");
-			return NULL;
-		}
-		new_cv->v = v->v;
+	if (!(new_cv = _create_value(mem))) {
+		log_error("Failed to clone config value.");
+		return NULL;
 	}

 	new_cv->type = v->type;
+	if (v->type == DM_CFG_STRING) {
+		if (!(new_cv->v.str = dm_pool_strdup(mem, v->v.str))) {
+			log_error("Failed to clone config string value.");
+			return NULL;
+		}
+	} else
+		new_cv->v = v->v;

 	if (v->next && !(new_cv->next = _clone_config_value(mem, v->next)))
 		return_NULL;
@ -1417,11 +1358,16 @@ struct dm_config_node *dm_config_clone_node_with_mem(struct dm_pool *mem, const
 		return NULL;
 	}

-	if (!(new_cn = _create_node(mem, cn->key, cn->key ? strlen(cn->key) : 0))) {
+	if (!(new_cn = _create_node(mem))) {
 		log_error("Failed to clone config node.");
 		return NULL;
 	}

+	if ((cn->key && !(new_cn->key = dm_pool_strdup(mem, cn->key)))) {
+		log_error("Failed to clone config node key.");
+		return NULL;
+	}
+
 	new_cn->id = cn->id;

 	if ((cn->v && !(new_cn->v = _clone_config_value(mem, cn->v))) ||
@ -1441,11 +1387,14 @@ struct dm_config_node *dm_config_create_node(struct dm_config_tree *cft, const c
 {
 	struct dm_config_node *cn;

-	if (!(cn = _create_node(cft->mem, key, strlen(key)))) {
+	if (!(cn = _create_node(cft->mem))) {
 		log_error("Failed to create config node.");
 		return NULL;
 	}
-
+	if (!(cn->key = dm_pool_strdup(cft->mem, key))) {
+		log_error("Failed to create config node's key.");
+		return NULL;
+	}
 	cn->parent = NULL;
 	cn->v = NULL;

--- a/device_mapper/libdm-deptree.c
+++ b/device_mapper/libdm-deptree.c
@ -171,7 +171,7 @@ struct load_segment {
 	uint32_t region_size;		/* Mirror + raid */
 	unsigned clustered;		/* Mirror */
 	unsigned mirror_area_count;	/* Mirror */
-	uint64_t flags;			/* Mirror + Raid + Cache */
+	uint32_t flags;			/* Mirror + raid + Cache */
 	char *uuid;			/* Clustered mirror log */

 	const char *policy_name;	/* Cache */
@ -214,7 +214,6 @@ struct load_segment {
 	uint32_t device_id;		/* Thin */

 	// VDO params
-	uint32_t vdo_version;		/* VDO - version of target table line */
 	struct dm_tree_node *vdo_data;  /* VDO */
 	struct dm_vdo_target_params vdo_params; /* VDO */
 	const char *vdo_name;           /* VDO - device name is ALSO passed as table arg */
@ -265,7 +264,7 @@ struct load_properties {
 	/*
 	 * Preload tree normally only loads and not resume, but there is
 	 * automatic resume when target is extended, as it's believed
-	 * there can be no i/o flying to this 'new' extended space
+	 * there can be no i/o flying to this 'new' extedend space
 	 * from any device above. Reason is that preloaded target above
 	 * may actually need to see its bigger subdevice before it
 	 * gets suspended. As long as devices are simple linears
@ -277,7 +276,7 @@ struct load_properties {

 	/*
 	 * When comparing table lines to decide if a reload is
-	 * needed, ignore any differences between the lvm device
+	 * needed, ignore any differences betwen the lvm device
 	 * params and the kernel-reported device params.
 	 * dm-integrity reports many internal parameters on the
 	 * table line when lvm does not explicitly set them,
@ -288,16 +287,12 @@ struct load_properties {
 	/*
 	 * Call node_send_messages(), set to 2 if there are messages
 	 * When != 0, it validates matching transaction id, thus thin-pools
-	 * where transaction_id is passed as 0 are never validated, this
-	 * allows external management of thin-pool TID.
+	 * where transation_id is passed as 0 are never validated, this
+	 * allows external managment of thin-pool TID.
 	 */
 	unsigned send_messages;
 	/* Skip suspending node's children, used when sending messages to thin-pool */
 	int skip_suspend;
-
-	/* Suspend and Resume siblings after node activation with udev flags*/
-	unsigned reactivate_siblings;
-	uint16_t reactivate_udev_flags;
 };

 /* Two of these used to join two nodes with uses and used_by. */
@ -348,7 +343,7 @@ struct dm_tree {
 	int retry_remove;		/* 1 retries remove if not successful */
 	uint32_t cookie;
 	char buf[DM_NAME_LEN + 32];	/* print buffer for device_name (major:minor) */
-	const char * const *optional_uuid_suffixes;	/* uuid suffixes ignored when matching */
+	const char **optional_uuid_suffixes;	/* uuid suffixes ignored when matching */
 };

 /*
@ -590,7 +585,6 @@ void dm_tree_set_optional_uuid_suffixes(struct dm_tree *dtree, const char **opti
 	dtree->optional_uuid_suffixes = optional_uuid_suffixes;
 }

-static const char *_node_name(struct dm_tree_node *dnode);
 static struct dm_tree_node *_find_dm_tree_node_by_uuid(struct dm_tree *dtree,
 						       const char *uuid)
 {
@ -598,26 +592,28 @@ static struct dm_tree_node *_find_dm_tree_node_by_uuid(struct dm_tree *dtree,
 	const char *default_uuid_prefix;
 	size_t default_uuid_prefix_len;
 	const char *suffix, *suffix_position;
-	char uuid_without_suffix[DM_UUID_LEN + 1];
+	char uuid_without_suffix[DM_UUID_LEN];
 	unsigned i = 0;
-	const char * const *suffix_list = dtree->optional_uuid_suffixes;
+	const char **suffix_list = dtree->optional_uuid_suffixes;

 	if ((node = dm_hash_lookup(dtree->uuids, uuid))) {
-		log_debug_activation("Matched uuid %s %s in deptree.", uuid, _node_name(node));
+		log_debug("Matched uuid %s in deptree.", uuid);
 		return node;
 	}

+	default_uuid_prefix = dm_uuid_prefix();
+	default_uuid_prefix_len = strlen(default_uuid_prefix);
+
 	if (suffix_list && (suffix_position = strrchr(uuid, '-'))) {
 		while ((suffix = suffix_list[i++])) {
 			if (strcmp(suffix_position + 1, suffix))
 				continue;

-			dm_strncpy(uuid_without_suffix, uuid, sizeof(uuid_without_suffix));
+			(void) strncpy(uuid_without_suffix, uuid, sizeof(uuid_without_suffix));
 			uuid_without_suffix[suffix_position - uuid] = '\0';

 			if ((node = dm_hash_lookup(dtree->uuids, uuid_without_suffix))) {
-				log_debug_activation("Matched uuid %s %s (missing suffix -%s) in deptree.",
-						     uuid_without_suffix, _node_name(node), suffix);
+				log_debug("Matched uuid %s (missing suffix -%s) in deptree.", uuid_without_suffix, suffix);
 				return node;
 			}

@ -625,17 +621,15 @@ static struct dm_tree_node *_find_dm_tree_node_by_uuid(struct dm_tree *dtree,
 		};
 	}
 	
-	default_uuid_prefix = dm_uuid_prefix();
-	default_uuid_prefix_len = strlen(default_uuid_prefix);
+	if (strncmp(uuid, default_uuid_prefix, default_uuid_prefix_len))
+		return NULL;

-	if ((strncmp(uuid, default_uuid_prefix, default_uuid_prefix_len) == 0) &&
-	    (node = dm_hash_lookup(dtree->uuids, uuid + default_uuid_prefix_len))) {
-		log_debug_activation("Matched uuid %s %s (missing prefix) in deptree.",
-				     uuid + default_uuid_prefix_len, _node_name(node));
+	if ((node = dm_hash_lookup(dtree->uuids, uuid + default_uuid_prefix_len))) {
+		log_debug("Matched uuid %s (missing prefix) in deptree.", uuid + default_uuid_prefix_len);
 		return node;
 	}

-	log_debug_activation("Not matched uuid %s in deptree.", uuid);
+	log_debug("Not matched uuid %s in deptree.", uuid);
 	return NULL;
 }

@ -968,7 +962,7 @@ static int _check_device_not_in_use(const char *name, struct dm_info *info)
 	} else if (dm_device_has_holders(info->major, info->minor))
 		reason = "is used by another device";
 	else if (dm_device_has_mounted_fs(info->major, info->minor))
-		reason = "contains a filesystem in use";
+		reason = "constains a filesystem in use";
 	else
 		return 1;

@ -1816,7 +1810,7 @@ static int _dm_tree_deactivate_children(struct dm_tree_node *dnode,

 		if (info.open_count) {
 			/* Skip internal non-toplevel opened nodes */
-			/* On some old udev systems without correct udev rules
+			/* On some old udev systems without corrrect udev rules
 			 * this hack avoids 'leaking' active _mimageX legs after
 			 * deactivation of mirror LV. Other suffixes are not added
 			 * since it's expected newer systems with wider range of
@ -2035,68 +2029,6 @@ static int _rename_conflict_exists(struct dm_tree_node *parent,
 	return 0;
 }

-/*
- * Reactivation of sibling nodes
- *
- * Function is used when activating origin and its thick snapshots
- * to ensure udev is processing first the origin LV and all the
- * snapshot LVs are processed afterwards.
- */
-static int _reactivate_siblings(struct dm_tree_node *dnode,
-				const char *uuid_prefix,
-				size_t uuid_prefix_len)
-{
-	struct dm_tree_node *child;
-	const char *uuid;
-	void *handle = NULL;
-	int r = 1;
-
-	/* Wait for udev before reactivating siblings */
-	if (!dm_udev_wait(dm_tree_get_cookie(dnode)))
-		stack;
-
-	dm_tree_set_cookie(dnode, 0);
-
-	while ((child = dm_tree_next_child(&handle, dnode, 0))) {
-		if (child->props.reactivate_siblings) {
-			/* Skip 'leading' device in this group, marked with flag */
-			child->props.reactivate_siblings = 0;
-			continue;
-		}
-
-		if (!(uuid = dm_tree_node_get_uuid(child))) {
-			stack;
-			continue;
-		}
-
-		if (!_uuid_prefix_matches(uuid, uuid_prefix, uuid_prefix_len))
-			continue;
-
-		if (!_suspend_node(child->name, child->info.major, child->info.minor,
-				   child->dtree->skip_lockfs,
-				   child->dtree->no_flush, &child->info)) {
-			log_error("Unable to suspend %s (" FMTu32
-				  ":" FMTu32 ")", child->name,
-				  child->info.major, child->info.minor);
-			r = 0;
-			continue;
-		}
-		if (!_resume_node(child->name, child->info.major, child->info.minor,
-				  child->props.read_ahead, child->props.read_ahead_flags,
-				  &child->info, &child->dtree->cookie,
-				  child->props.reactivate_udev_flags, // use these flags
-				  child->info.suspended)) {
-			log_error("Failed to suspend %s (" FMTu32
-				  ":" FMTu32 ")", child->name,
-				  child->info.major, child->info.minor);
-			r = 0;
-			continue;
-		}
-	}
-
-	return r;
-}
-
 int dm_tree_activate_children(struct dm_tree_node *dnode,
 				 const char *uuid_prefix,
 				 size_t uuid_prefix_len)
@ -2107,7 +2039,7 @@ int dm_tree_activate_children(struct dm_tree_node *dnode,
 	struct dm_tree_node *child = dnode;
 	const char *name;
 	const char *uuid;
-	int priority, next_priority;
+	int priority;

 	/* Activate children first */
 	while ((child = dm_tree_next_child(&handle, dnode, 0))) {
@ -2125,16 +2057,12 @@ int dm_tree_activate_children(struct dm_tree_node *dnode,
 	}

 	handle = NULL;
+
 	for (priority = 0; priority < 3; priority++) {
 		awaiting_peer_rename = 0;
-		next_priority = 0;
 		while ((child = dm_tree_next_child(&handle, dnode, 0))) {
-			if (priority != child->activation_priority) {
-				if ((next_priority < child->activation_priority) &&
-				    (child->activation_priority > priority))
-					next_priority = child->activation_priority;
+			if (priority != child->activation_priority)
 				continue;
-			}

 			if (!(uuid = dm_tree_node_get_uuid(child))) {
 				stack;
@ -2182,23 +2110,16 @@ int dm_tree_activate_children(struct dm_tree_node *dnode,
 			/*
 			 * FIXME: Implement delayed error reporting
 			 * activation should be stopped only in the case,
-			 * the submission of transaction_id message fails,
+			 * the submission of transation_id message fails,
 			 * resume should continue further, just whole command
 			 * has to report failure.
 			 */
 			if (r && (child->props.send_messages > 1) &&
 			    !(r = _node_send_messages(child, uuid_prefix, uuid_prefix_len, 1)))
 				stack;
-
-			/* Reactivate only for fresh activated origin */
-			if (r && child->props.reactivate_siblings &&
-			    (!(r = _reactivate_siblings(dnode, uuid_prefix, uuid_prefix_len))))
-				stack;
 		}
 		if (awaiting_peer_rename)
 			priority--; /* redo priority level */
-		else if (!next_priority)
-			break;  /* no more work, higher priority was not found in the chain */
 	}

 	return r;
@ -2274,7 +2195,7 @@ static int _build_dev_string(char *devbuf, size_t bufsize, struct dm_tree_node *
 	return 1;
 }

-/* simplify string emitting code */
+/* simplify string emiting code */
 #define EMIT_PARAMS(p, str...)\
 do {\
 	int w;\
@ -2757,10 +2678,6 @@ static int _writecache_emit_segment_line(struct dm_task *dmt,
 		count += 1;
 	if (seg->writecache_settings.max_age_set)
 		count += 2;
-	if (seg->writecache_settings.metadata_only_set)
-		count += 1;
-	if (seg->writecache_settings.pause_writeback_set)
-		count += 2;
 	if (seg->writecache_settings.new_key)
 		count += 2;

@ -2812,14 +2729,6 @@ static int _writecache_emit_segment_line(struct dm_task *dmt,
 		EMIT_PARAMS(pos, " max_age %u", seg->writecache_settings.max_age);
 	}

-	if (seg->writecache_settings.metadata_only_set) {
-		EMIT_PARAMS(pos, " metadata_only");
-	}
-
-	if (seg->writecache_settings.pause_writeback_set) {
-		EMIT_PARAMS(pos, " pause_writeback %u", seg->writecache_settings.pause_writeback);
-	}
-
 	if (seg->writecache_settings.new_key) {
 		EMIT_PARAMS(pos, " %s %s",
 			seg->writecache_settings.new_key,
@ -2868,8 +2777,6 @@ static int _integrity_emit_segment_line(struct dm_task *dmt,
 		count++;
 	if (set->sectors_per_bit_set)
 		count++;
-	if (set->allow_discards_set && set->allow_discards)
-		count++;

 	EMIT_PARAMS(pos, "%s 0 %u %s %d fix_padding block_size:%u internal_hash:%s",
 		    origin_dev,
@ -2889,7 +2796,7 @@ static int _integrity_emit_segment_line(struct dm_task *dmt,
 		EMIT_PARAMS(pos, " journal_sectors:%u", set->journal_sectors);

 	if (set->interleave_sectors_set)
-		EMIT_PARAMS(pos, " interleave_sectors:%u", set->interleave_sectors);
+		EMIT_PARAMS(pos, " ineterleave_sectors:%u", set->interleave_sectors);

 	if (set->buffer_sectors_set)
 		EMIT_PARAMS(pos, " buffer_sectors:%u", set->buffer_sectors);
@ -2906,9 +2813,6 @@ static int _integrity_emit_segment_line(struct dm_task *dmt,
 	if (set->sectors_per_bit_set)
 		EMIT_PARAMS(pos, " sectors_per_bit:%llu", (unsigned long long)set->sectors_per_bit);

-	if (set->allow_discards_set && set->allow_discards)
-		EMIT_PARAMS(pos, " allow_discards");
-
 	if (!dm_task_secure_data(dmt))
 		stack;

@ -2945,18 +2849,13 @@ static int _thin_pool_emit_segment_line(struct dm_task *dmt,
 	return 1;
 }

-static int _vdo_emit_segment_line(struct dm_task *dmt, uint32_t major, uint32_t minor,
+static int _vdo_emit_segment_line(struct dm_task *dmt,
 				  struct load_segment *seg,
 				  char *params, size_t paramsize)
 {
 	int pos = 0;
 	char data[DM_FORMAT_DEV_BUFSIZE];
 	char data_dev[128]; // for /dev/dm-XXXX
-	uint64_t logical_blocks;
-	struct dm_task *vdo_dmt;
-	uint64_t start, length = 0;
-	char *type = NULL;
-	char *vdo_params = NULL;

 	if (!_build_dev_string(data, sizeof(data), seg->vdo_data))
 		return_0;
@ -2966,59 +2865,18 @@ static int _vdo_emit_segment_line(struct dm_task *dmt, uint32_t major, uint32_t
 		return 0;
 	}

-	/*
-	 * If there is already running VDO target, read 'existing' virtual size out of table line
-	 * and avoid reading it them from VDO metadata device
-	 *
-	 * NOTE: ATM VDO virtual size can be ONLY extended thus it's simple to recognize 'right' size.
-	 * However if there would be supported also reduction, this check would need to check range.
-	 */
-	if ((vdo_dmt = dm_task_create(DM_DEVICE_TABLE))) {
-		if (dm_task_set_major(vdo_dmt, major) &&
-		    dm_task_set_minor(vdo_dmt, minor) &&
-		    dm_task_run(vdo_dmt)) {
-			(void) dm_get_next_target(vdo_dmt, NULL, &start, &length, &type, &vdo_params);
-			if (!type || strcmp(type, "vdo"))
-				length = 0;
-		}
-
-		dm_task_destroy(vdo_dmt);
-	}
-
-	if (!length && dm_vdo_parse_logical_size(data_dev, &logical_blocks))
-		length = logical_blocks * 8;
-
-	if (seg->size < length) {
-		log_debug_activation("Correcting VDO virtual volume size from " FMTu64  " to " FMTu64 ".",
-				     seg->size, length);
-		seg->size = length;
-	}
-
-	if (seg->vdo_version < 4) {
-		EMIT_PARAMS(pos, "V2 %s " FMTu64 " %u " FMTu64 " %u %s %s %s ",
-			    data_dev,
-			    seg->vdo_data_size / 8, // this parameter is in 4K units
-			    seg->vdo_params.minimum_io_size * UINT32_C(512), //  sector to byte units
-			    seg->vdo_params.block_map_cache_size_mb * UINT64_C(256),	// 1MiB -> 4KiB units
-			    seg->vdo_params.block_map_era_length,
-			    seg->vdo_params.use_metadata_hints ? "on" : "off" ,
-			    (seg->vdo_params.write_policy == DM_VDO_WRITE_POLICY_SYNC) ? "sync" :
-			    (seg->vdo_params.write_policy == DM_VDO_WRITE_POLICY_ASYNC) ? "async" :
-			    (seg->vdo_params.write_policy == DM_VDO_WRITE_POLICY_ASYNC_UNSAFE) ? "async-unsafe" : "auto", // policy
-			    seg->vdo_name);
-	} else {
-		EMIT_PARAMS(pos, "V4 %s " FMTu64 " %u " FMTu64 " %u "
-			    "deduplication %s compression %s ",
-			    data_dev,
-			    seg->vdo_data_size / 8, // this parameter is in 4K units
-			    seg->vdo_params.minimum_io_size * UINT32_C(512), //  sector to byte units
-			    seg->vdo_params.block_map_cache_size_mb * UINT64_C(256),	// 1MiB -> 4KiB units
-			    seg->vdo_params.block_map_era_length,
-			    seg->vdo_params.use_deduplication ? "on" : "off",
-			    seg->vdo_params.use_compression ? "on" : "off");
-	}
-
-	EMIT_PARAMS(pos, "maxDiscard %u ack %u bio %u bioRotationInterval %u cpu %u hash %u logical %u physical %u",
+	EMIT_PARAMS(pos, "V2 %s " FMTu64 " %u " FMTu64 " %u %s %s %s "
+		    "maxDiscard %u ack %u bio %u bioRotationInterval %u cpu %u hash %u logical %u physical %u",
+		    data_dev,
+		    seg->vdo_data_size / 8, // this parameter is in 4K units
+		    seg->vdo_params.minimum_io_size * UINT32_C(512), //  sector to byte units
+		    seg->vdo_params.block_map_cache_size_mb * UINT64_C(256),	// 1MiB -> 4KiB units
+		    seg->vdo_params.block_map_era_length,
+		    seg->vdo_params.use_metadata_hints ? "on" : "off" ,
+		    (seg->vdo_params.write_policy == DM_VDO_WRITE_POLICY_SYNC) ? "sync" :
+			(seg->vdo_params.write_policy == DM_VDO_WRITE_POLICY_ASYNC) ? "async" :
+			(seg->vdo_params.write_policy == DM_VDO_WRITE_POLICY_ASYNC_UNSAFE) ? "async-unsafe" : "auto", // policy
+		    seg->vdo_name,
 		    seg->vdo_params.max_discard,
 		    seg->vdo_params.ack_threads,
 		    seg->vdo_params.bio_threads,
@ -3093,7 +2951,7 @@ static int _emit_segment_line(struct dm_task *dmt, uint32_t major,
 		EMIT_PARAMS(pos, "%u %u ", seg->area_count, seg->stripe_size);
 		break;
 	case SEG_VDO:
-		if (!_vdo_emit_segment_line(dmt, major, minor, seg, params, paramsize))
+		if (!_vdo_emit_segment_line(dmt, seg, params, paramsize))
 		      return_0;
 		break;
 	case SEG_CRYPT:
@ -3382,7 +3240,7 @@ int dm_tree_preload_children(struct dm_tree_node *dnode,
 		if (!child->info.exists && !(node_created = _create_node(child, dnode)))
 			return_0;

-		/* Propagate delayed resume from extended child node */
+		/* Propagate delayed resume from exteded child node */
 		if (child->props.delay_resume_if_extended)
 			dnode->props.delay_resume_if_extended = 1;

@ -3532,10 +3390,6 @@ int dm_tree_node_add_snapshot_origin_target(struct dm_tree_node *dnode,
 	/* Resume snapshot origins after new snapshots */
 	dnode->activation_priority = 1;

-	if (!dnode->info.exists)
-		/* Reactivate siblings for this origin after being resumed */
-		dnode->props.reactivate_siblings = 1;
-
 	/*
 	 * Don't resume the origin immediately in case it is a non-trivial 
 	 * target that must not be active more than once concurrently!
@ -3598,20 +3452,6 @@ static int _add_snapshot_target(struct dm_tree_node *node,
 			/* Resume merging snapshot after snapshot-merge */
 			seg->merge->activation_priority = 2;
 		}
-	} else if (!origin_node->info.exists) {
-		/* Keep original udev_flags for reactivation. */
-		node->props.reactivate_udev_flags = node->udev_flags;
-
-		/* Reactivation is needed if the origin's -real device is not in DM table.
-		 * For this case after the resume of its origin LV we resume its snapshots
-		 * with updated udev_flags to completely avoid udev scanning for the first resume.
-		 * Reactivation then resumes snapshots with original udev_flags.
-		 */
-		node->udev_flags |= DM_SUBSYSTEM_UDEV_FLAG0 |
-			DM_UDEV_DISABLE_DISK_RULES_FLAG |
-			DM_UDEV_DISABLE_OTHER_RULES_FLAG;
-		log_debug_activation("Using udev_flags 0x%x for activation of %s.",
-				     node->udev_flags, node->name);
 	}

 	return 1;
@ -3818,7 +3658,7 @@ int dm_tree_node_add_raid_target(struct dm_tree_node *node,
 * - maximum 253 legs in a raid set (MD kernel limitation)
 * - delta_disks for disk add/remove reshaping
 * - data_offset for out-of-place reshaping
- * - data_copies to cope with odd numbers of raid10 disks
+ * - data_copies to cope witth odd numbers of raid10 disks
 */
 int dm_tree_node_add_raid_target_with_params_v2(struct dm_tree_node *node,
 					        uint64_t size,
@ -3869,7 +3709,7 @@ int dm_tree_node_add_cache_target(struct dm_tree_node *node,
 {
 	struct dm_config_node *cn;
 	struct load_segment *seg;
-	const uint64_t modemask =
+	static const uint64_t _modemask =
 		DM_CACHE_FEATURE_PASSTHROUGH |
 		DM_CACHE_FEATURE_WRITETHROUGH |
 		DM_CACHE_FEATURE_WRITEBACK;
@ -3881,12 +3721,12 @@ int dm_tree_node_add_cache_target(struct dm_tree_node *node,
 		return 0;
 	}

-	switch (feature_flags & modemask) {
+	switch (feature_flags & _modemask) {
 	case DM_CACHE_FEATURE_PASSTHROUGH:
 	case DM_CACHE_FEATURE_WRITEBACK:
 		if (strcmp(policy_name, "cleaner") == 0) {
 			/* Enforce writethrough mode for cleaner policy */
-			feature_flags = ~modemask;
+			feature_flags = ~_modemask;
 			feature_flags |= DM_CACHE_FEATURE_WRITETHROUGH;
 		}
                /* Fall through */
@ -4082,7 +3922,7 @@ int dm_tree_node_add_replicator_dev_target(struct dm_tree_node *node,
 					   uint32_t slog_flags,
 					   uint32_t slog_region_size)
 {
-	log_error("Replicator target is unsupported.");
+	log_error("Replicator targer is unsupported.");
 	return 0;
 }

@ -4369,12 +4209,6 @@ int dm_tree_node_set_thin_external_origin(struct dm_tree_node *node,

 	seg->external = external;

-	if (!external->info.minor) {
-		log_debug_activation("Delaying resume for new external origin %s.",
-				     external->name);
-		external->props.delay_resume_if_new = 1;
-	}
-
 	return 1;
 }

@ -4489,7 +4323,6 @@ void dm_tree_node_set_callback(struct dm_tree_node *dnode,

 int dm_tree_node_add_vdo_target(struct dm_tree_node *node,
 				uint64_t size,
-				uint32_t vdo_version,
 				const char *vdo_pool_name,
 				const char *data_uuid,
 				uint64_t data_size,
@ -4511,13 +4344,11 @@ int dm_tree_node_add_vdo_target(struct dm_tree_node *node,
 	if (!_link_tree_nodes(node, seg->vdo_data))
 		return_0;

-	seg->vdo_version = vdo_version;
 	seg->vdo_params = *vtp;
 	seg->vdo_name = vdo_pool_name;
 	seg->vdo_data_size = data_size;

-	if (seg->vdo_version < 4)
-		node->props.send_messages = 2;
+	node->props.send_messages = 2;

 	return 1;
 }
--- a/device_mapper/libdm-file.c
+++ b/device_mapper/libdm-file.c
@ -223,6 +223,7 @@ retry_fcntl:
 	}

 	/* coverity[leaked_handle] intentional leak of fd handle here  */
+
 	return 1;

 fail_close_unlink:
--- a/device_mapper/libdm-report.c
+++ b/device_mapper/libdm-report.c
--- a/device_mapper/libdm-string.c
+++ b/device_mapper/libdm-string.c
@ -192,7 +192,7 @@ int dm_asprintf(char **result, const char *format, ...)
 }

 /*
- * Count occurrences of 'c' in 'str' until we reach a null char.
+ * Count occurences of 'c' in 'str' until we reach a null char.
 *
 * Returns:
 *  len - incremented for each char we encounter.
@ -385,7 +385,7 @@ char *dm_build_dm_uuid(struct dm_pool *mem, const char *uuid_prefix, const char
 		return NULL;
 	}

-	snprintf(dmuuid, len, "%s%s%s%s", uuid_prefix, lvid, (*layer) ? "-" : "", layer);
+	sprintf(dmuuid, "%s%s%s%s", uuid_prefix, lvid, (*layer) ? "-" : "", layer);

 	return dmuuid;
 }
@ -552,7 +552,7 @@ const char *dm_size_to_string(struct dm_pool *mem, uint64_t size,
 	if (size == UINT64_C(0)) {
 		if (base == BASE_UNKNOWN)
 			s = 0;
-		snprintf(size_buf, SIZE_BUF, "0%s", include_suffix ? size_str[base + s][suffix_type] : "");
+		sprintf(size_buf, "0%s", include_suffix ? size_str[base + s][suffix_type] : "");
 		return size_buf;
 	}

--- a/device_mapper/libdm-targets.c
+++ b/device_mapper/libdm-targets.c
@ -106,31 +106,26 @@ int dm_get_status_raid(struct dm_pool *mem, const char *params,

 	/* Second field holds the device count */
 	msg_fields = "<#devs> ";
-	if (!(pp = _skip_fields(params, 1)) || (sscanf(pp, "%d", &i) != 1) || !(p = _skip_fields(pp, 1)))
+	if (!(p = _skip_fields(params, 1)) || (sscanf(p, "%d", &i) != 1))
 		goto_bad;

 	msg_fields = "";
 	if (!(s = dm_pool_zalloc(mem, sizeof(struct dm_status_raid))))
 		goto_bad;

-	msg_fields = "<raid_type> <#devices> <health_chars> and <sync_ratio> ";
-	if (!(s->raid_type = dm_pool_strndup(mem, params, pp - params - 1)))
+	if (!(s->raid_type = dm_pool_zalloc(mem, p - params)))
 		goto_bad; /* memory is freed when pool is destroyed */

-	if (!(pp = _skip_fields(p, 1)))
+	if (!(s->dev_health = dm_pool_zalloc(mem, i + 1))) /* Space for health chars */
 		goto_bad;

-	/* Raid target can actually report more then real number of legs in a case
-	 * raid legs have been removed during initial raid array resynchronization */
-	if (i > (pp - p - 1))
-		i = pp - p - 1;
-
-	if (!(s->dev_health = dm_pool_strndup(mem, p, i))) /* health chars */
-		goto_bad;
-	p = pp;
-
-	s->dev_count = i;
-	if (sscanf(p, FMTu64 "/" FMTu64, &s->insync_regions, &s->total_regions) != 2)
+	msg_fields = "<raid_type> <#devices> <health_chars> and <sync_ratio> ";
+	if (sscanf(params, "%s %u %s " FMTu64 "/" FMTu64,
+		   s->raid_type,
+		   &s->dev_count,
+		   s->dev_health,
+		   &s->insync_regions,
+		   &s->total_regions) != 5)
 		goto_bad;

 	/*
@ -146,13 +141,13 @@ int dm_get_status_raid(struct dm_pool *mem, const char *params,
 	msg_fields = "<sync_action> and <mismatch_cnt> ";

 	/* Skip pre-1.5.0 params */
-	if (!(pp = _skip_fields(params, 4)) || !(p = _skip_fields(pp, 1)))
+	if (!(p = _skip_fields(params, 4)) || !(pp = _skip_fields(p, 1)))
 		goto_bad;

-	if (!(s->sync_action = dm_pool_strndup(mem, pp, p - pp - 1)))
+	if (!(s->sync_action = dm_pool_zalloc(mem, pp - p)))
 		goto_bad;

-	if (sscanf(p, FMTu64, &s->mismatch_count) != 1)
+	if (sscanf(p, "%s " FMTu64, s->sync_action, &s->mismatch_count) != 2)
 		goto_bad;

 	if (num_fields < 7)
@ -171,35 +166,23 @@ int dm_get_status_raid(struct dm_pool *mem, const char *params,
 	if (sscanf(p, FMTu64, &s->data_offset) != 1)
 		goto bad;

-	/* <journal_char>  - 'A' - active write-through journal device.
-	 *                 - 'a' - active write-back journal device.
-	 *                 - 'D' - dead journal device.
-	 *                 - '-' - no journal device.
-	 */
-
 out:
 	*status = s;

-	while (i-- > 0)
-		if (s->dev_health[i] == 'a')
-			a++; /* Count number of 'a' */
+	if (s->insync_regions == s->total_regions) {
+		/* FIXME: kernel gives misleading info here
+		 * Trying to recognize a true state */
+		while (i-- > 0)
+			if (s->dev_health[i] == 'a')
+				a++; /* Count number of 'a' */

-	if (a) {
-		if ((a < s->dev_count) &&  /* SOME legs are in 'a' */
-		    /* FIXME: kernel gives misleading info here
-		     * Trying to recognize a true state */
-		    (s->insync_regions == s->total_regions) &&
-		    (!strcasecmp(s->sync_action, "recover") ||
-		     !strcasecmp(s->sync_action, "idle"))) {
-			/* Kernel may possibly start some action
-			 * in near-by future, do not report 100% */
-			s->insync_regions--;
-		}
-		if ((a == s->dev_count) && /* all legs are in 'a' */
-		    (!strcasecmp(s->sync_action, "resync") ||
-		     !strcasecmp(s->sync_action, "idle"))) {
-			/* Mark 1st. leg in sync */
-			s->dev_health[0] = 'A';
+		if (a && a < s->dev_count) {
+			/* SOME legs are in 'a' */
+			if (!strcasecmp(s->sync_action, "recover")
+			    || !strcasecmp(s->sync_action, "idle"))
+				/* Kernel may possibly start some action
+				 * in near-by future, do not report 100% */
+				s->insync_regions--;
 		}
 	}

@ -528,21 +511,6 @@ int dm_get_status_thin(struct dm_pool *mem, const char *params,
 	return 1;
 }

-static dm_status_mirror_health_t _get_health(char c)
-{
-	switch (c) {
-	case 'A': return DM_STATUS_MIRROR_ALIVE;
-	case 'F': return DM_STATUS_MIRROR_FLUSH_FAILED;
-	case 'D': return DM_STATUS_MIRROR_WRITE_FAILED;
-	case 'S': return DM_STATUS_MIRROR_SYNC_FAILED;
-	case 'R': return DM_STATUS_MIRROR_READ_FAILED;
-	default:
-		log_warn("WARNING: Unknown mirror health status char: %c", c);
-		/* fall through */
-	case 'U': return DM_STATUS_MIRROR_UNCLASSIFIED;
-	}
-}
-
 /*
 * dm core parms:	     0 409600 mirror
 * Mirror core parms:	     2 253:4 253:5 400/400
@ -596,7 +564,7 @@ int dm_get_status_mirror(struct dm_pool *mem, const char *params,
 	pos += used;

 	for (i = 0; i < num_devs ; ++i)
-		s->devs[i].health = _get_health(pos[i]);
+		s->devs[i].health = pos[i];

 	if (!(pos = _skip_fields(pos, argc)))
 		goto_out;
@ -641,7 +609,7 @@ int dm_get_status_mirror(struct dm_pool *mem, const char *params,
 					goto_out;

 			for (i = 0; i < s->log_count; ++i)
-				s->logs[i].health = _get_health(pos[i]);
+				s->logs[i].health = pos[i];
 		}
 	}

--- a/device_mapper/misc/dm-ioctl.h
+++ b/device_mapper/misc/dm-ioctl.h
@ -209,7 +209,7 @@ struct dm_name_list {
 };

 #define DM_NAME_LIST_FLAG_HAS_UUID		1
-#define DM_NAME_LIST_FLAG_DOES_NOT_HAVE_UUID	2
+#define DM_NAME_LIST_FLAG_DOESNT_HAVE_UUID	2

 /*
 * Used to retrieve the target versions
--- a/device_mapper/misc/dm-log-userspace.h
+++ b/device_mapper/misc/dm-log-userspace.h
@ -62,7 +62,7 @@
 *
 * The UUID contained in the dm_ulog_request structure is the reference that
 * will be used by all request types to a specific log.  The constructor must
- * record this association with the instance created.
+ * record this assotiation with the instance created.
 *
 * When the request has been processed, user-space must return the
 * dm_ulog_request to the kernel - setting the 'error' field, filling the
--- a/device_mapper/mm/pool.c
+++ b/device_mapper/mm/pool.c
@ -129,7 +129,7 @@ int dm_pool_locked(struct dm_pool *p)
 * Bool specifies whether to store the pool crc/hash checksum.
 *
 * \return
- * 1 (success) when the pool was properly locked, 0 otherwise.
+ * 1 (success) when the pool was preperly locked, 0 otherwise.
 */
 int dm_pool_lock(struct dm_pool *p, int crc)
 {
--- a/device_mapper/vdo/target.h
+++ b/device_mapper/vdo/target.h
@ -77,10 +77,9 @@ enum dm_vdo_write_policy {
 struct dm_vdo_target_params {
 	uint32_t minimum_io_size;       // in sectors
 	uint32_t block_map_cache_size_mb;
-	union {
-		uint32_t block_map_era_length;	// format period
-		uint32_t block_map_period;      // supported alias
-	};
+	uint32_t block_map_era_length;	// format period
+
+	uint32_t check_point_frequency;
 	uint32_t index_memory_size_mb;  // format

 	uint32_t slab_size_mb;          // format
@ -107,8 +106,6 @@ struct dm_vdo_target_params {
 bool dm_vdo_validate_target_params(const struct dm_vdo_target_params *vtp,
 				   uint64_t vdo_size);

-bool dm_vdo_parse_logical_size(const char *vdo_path, uint64_t *logical_blocks);
-
 //----------------------------------------------------------------

 #endif
--- a/device_mapper/vdo/vdo_limits.h
+++ b/device_mapper/vdo/vdo_limits.h
@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2018-2022 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2018 Red Hat, Inc. All rights reserved.
 *
 * This file is part of the device-mapper userspace tools.
 *
@ -15,52 +15,49 @@
 #ifndef DEVICE_MAPPER_VDO_LIMITS_H
 #define DEVICE_MAPPER_VDO_LIMITS_H

-#ifndef SECTOR_SHIFT
-#define SECTOR_SHIFT 9L
-#endif
-
 #define DM_VDO_BLOCK_SIZE			UINT64_C(8)		// 4KiB in sectors
-#define DM_VDO_BLOCK_SIZE_KB			(DM_VDO_BLOCK_SIZE << SECTOR_SHIFT)

 #define DM_VDO_BLOCK_MAP_CACHE_SIZE_MINIMUM_MB	(128)			// 128MiB
 #define DM_VDO_BLOCK_MAP_CACHE_SIZE_MAXIMUM_MB	(16 * 1024 * 1024 - 1)	// 16TiB - 1
 #define DM_VDO_BLOCK_MAP_CACHE_SIZE_MINIMUM_PER_LOGICAL_THREAD  (4096 * DM_VDO_BLOCK_SIZE_KB)

-#define DM_VDO_BLOCK_MAP_ERA_LENGTH_MINIMUM	1
-#define DM_VDO_BLOCK_MAP_ERA_LENGTH_MAXIMUM	16380
+#define DM_VDO_BLOCK_MAP_ERA_LENGTH_MINIMUM	(1)
+#define DM_VDO_BLOCK_MAP_ERA_LENGTH_MAXIMUM	(16380)

-#define DM_VDO_INDEX_MEMORY_SIZE_MINIMUM_MB	256			// 0.25 GiB
+#define DM_VDO_INDEX_MEMORY_SIZE_MINIMUM_MB	(256)			// 0.25 GiB
 #define DM_VDO_INDEX_MEMORY_SIZE_MAXIMUM_MB	(1024 * 1024 * 1024)	// 1TiB

-#define DM_VDO_SLAB_SIZE_MINIMUM_MB		128			// 128MiB
+//#define DM_VDO_READ_CACHE_SIZE_MINIMUM_MB	(0)
+#define DM_VDO_READ_CACHE_SIZE_MAXIMUM_MB	(16 * 1024 * 1024 - 1)	// 16TiB - 1
+
+#define DM_VDO_SLAB_SIZE_MINIMUM_MB		(128)			// 128MiB
 #define DM_VDO_SLAB_SIZE_MAXIMUM_MB		(32 * 1024)		// 32GiB
-#define DM_VDO_SLABS_MAXIMUM			8192

-#define DM_VDO_LOGICAL_SIZE_MAXIMUM	(UINT64_C(4) * 1024 * 1024 * 1024 * 1024 * 1024 >> SECTOR_SHIFT) // 4PiB
-#define DM_VDO_PHYSICAL_SIZE_MAXIMUM	(UINT64_C(64) * DM_VDO_BLOCK_SIZE_KB * 1024 * 1024 * 1024 >> SECTOR_SHIFT) // 256TiB
+//#define DM_VDO_LOGICAL_SIZE_MINIMUM_MB	(0)
+#define DM_VDO_LOGICAL_SIZE_MAXIMUM_MB	(UINT64_C(4) * 1024 * 1024 * 1024) // 4PiB

-#define DM_VDO_ACK_THREADS_MINIMUM		0
-#define DM_VDO_ACK_THREADS_MAXIMUM		100
+//#define DM_VDO_ACK_THREADS_MINIMUM		(0)
+#define DM_VDO_ACK_THREADS_MAXIMUM		(100)

-#define DM_VDO_BIO_THREADS_MINIMUM		1
-#define DM_VDO_BIO_THREADS_MAXIMUM		100
+#define DM_VDO_BIO_THREADS_MINIMUM		(1)
+#define DM_VDO_BIO_THREADS_MAXIMUM		(100)

-#define DM_VDO_BIO_ROTATION_MINIMUM		1
-#define DM_VDO_BIO_ROTATION_MAXIMUM		1024
+#define DM_VDO_BIO_ROTATION_MINIMUM		(1)
+#define DM_VDO_BIO_ROTATION_MAXIMUM		(1024)

-#define DM_VDO_CPU_THREADS_MINIMUM		1
-#define DM_VDO_CPU_THREADS_MAXIMUM		100
+#define DM_VDO_CPU_THREADS_MINIMUM		(1)
+#define DM_VDO_CPU_THREADS_MAXIMUM		(100)

-#define DM_VDO_HASH_ZONE_THREADS_MINIMUM	0
-#define DM_VDO_HASH_ZONE_THREADS_MAXIMUM	100
+//#define DM_VDO_HASH_ZONE_THREADS_MINIMUM	(0)
+#define DM_VDO_HASH_ZONE_THREADS_MAXIMUM	(100)

-#define DM_VDO_LOGICAL_THREADS_MINIMUM		0
-#define DM_VDO_LOGICAL_THREADS_MAXIMUM		60
+//#define DM_VDO_LOGICAL_THREADS_MINIMUM	(0)
+#define DM_VDO_LOGICAL_THREADS_MAXIMUM		(100)

-#define DM_VDO_PHYSICAL_THREADS_MINIMUM		0
-#define DM_VDO_PHYSICAL_THREADS_MAXIMUM		16
+//#define DM_VDO_PHYSICAL_THREADS_MINIMUM	(0)
+#define DM_VDO_PHYSICAL_THREADS_MAXIMUM		(16)

-#define DM_VDO_MAX_DISCARD_MINIMUM		1
-#define DM_VDO_MAX_DISCARD_MAXIMUM		(UINT32_MAX / (uint32_t)(DM_VDO_BLOCK_SIZE_KB))
+#define DM_VDO_MAX_DISCARD_MINIMUM		(1)
+#define DM_VDO_MAX_DISCARD_MAXIMUM		(UINT32_MAX / 4096)

 #endif // DEVICE_MAPPER_VDO_LIMITS_H
--- a/device_mapper/vdo/vdo_reader.c
+++ b/device_mapper/vdo/vdo_reader.c
@ -1,308 +0,0 @@
-/*
- * Copyright (C) 2022 Red Hat, Inc. All rights reserved.
- *
- * This file is part of the device-mapper userspace tools.
- *
- * This copyrighted material is made available to anyone wishing to use,
- * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU Lesser General Public License v.2.1.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/*
- * Based on VDO sources: https://github.com/dm-vdo/vdo
- *
- * Simplified parser of VDO superblock to obtain basic VDO parameteers
- *
- * TODO: maybe switch to some library in the future
- */
-
-//#define _GNU_SOURCE 1
-//#define _LARGEFILE64_SOURCE 1
-
-#include "device_mapper/misc/dmlib.h"
-
-#include "target.h"
-
-#include "lib/mm/xlate.h"
-//#include "linux/byteorder/big_endian.h"
-//#include "linux/byteorder/little_endian.h"
-//#define le32_to_cpu __le32_to_cpu
-//#define le64_to_cpu __le64_to_cpu
-
-
-#include <errno.h>
-#include <fcntl.h>
-#include <linux/fs.h>	/* For block ioctl definitions */
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/ioctl.h>
-#include <sys/stat.h>
-#include <unistd.h>
-
-typedef unsigned char uuid_t[16];
-
-#define __packed	__attribute__((packed))
-
-static const char _MAGIC_NUMBER[] = "dmvdo001";
-#define MAGIC_NUMBER_SIZE  (sizeof(_MAGIC_NUMBER) - 1)
-
-struct vdo_version_number {
-	uint32_t major_version;
-	uint32_t minor_version;
-} __packed;
-
-/*
- * The registry of component ids for use in headers
- */
-enum {
-	SUPER_BLOCK	  = 0,
-	FIXED_LAYOUT	  = 1,
-	RECOVERY_JOURNAL  = 2,
-	SLAB_DEPOT	  = 3,
-	BLOCK_MAP	  = 4,
-	GEOMETRY_BLOCK	  = 5,
-}; /* ComponentID */
-
-struct vdo_header {
-	uint32_t id; /* The component this is a header for */
-	struct vdo_version_number version; /* The version of the data format */
-	size_t size; /* The size of the data following this header */
-} __packed;
-
-struct vdo_geometry_block {
-	char magic_number[MAGIC_NUMBER_SIZE];
-	struct vdo_header header;
-	uint32_t checksum;
-} __packed;
-
-struct vdo_config {
-	uint64_t logical_blocks; /* number of logical blocks */
-	uint64_t physical_blocks; /* number of physical blocks */
-	uint64_t slab_size; /* number of blocks in a slab */
-	uint64_t recovery_journal_size; /* number of recovery journal blocks */
-	uint64_t slab_journal_blocks; /* number of slab journal blocks */
-} __packed;
-
-struct vdo_component_41_0 {
-	uint32_t state;
-	uint64_t complete_recoveries;
-	uint64_t read_only_recoveries;
-	struct vdo_config config; /* packed */
-	uint64_t nonce;
-} __packed;
-
-enum vdo_volume_region_id {
-	VDO_INDEX_REGION = 0,
-	VDO_DATA_REGION = 1,
-	VDO_VOLUME_REGION_COUNT,
-};
-
-struct vdo_volume_region {
-	/* The ID of the region */
-	enum vdo_volume_region_id id;
-	/*
-	 * The absolute starting offset on the device. The region continues
-	 * until the next region begins.
-	 */
-	uint64_t start_block;
-} __packed;
-
-struct vdo_index_config {
-	uint32_t mem;
-	uint32_t unused;
-	uint8_t sparse;
-} __packed;
-
-struct vdo_volume_geometry {
-	uint32_t release_version;
-	uint64_t nonce;
-	uuid_t uuid;
-	uint64_t bio_offset;
-	struct vdo_volume_region regions[VDO_VOLUME_REGION_COUNT];
-	struct vdo_index_config index_config;
-} __packed;
-
-struct vdo_volume_geometry_4 {
-	uint32_t release_version;
-	uint64_t nonce;
-	uuid_t uuid;
-	struct vdo_volume_region regions[VDO_VOLUME_REGION_COUNT];
-	struct vdo_index_config index_config;
-} __packed;
-
-/* Decoding mostly only some used structure members */
-
-static void _vdo_decode_version(struct vdo_version_number *v)
-{
-	v->major_version = le32_to_cpu(v->major_version);
-	v->minor_version = le32_to_cpu(v->minor_version);
-}
-
-static void _vdo_decode_header(struct vdo_header *h)
-{
-	h->id = le32_to_cpu(h->id);
-	_vdo_decode_version(&h->version);
-	h->size = le64_to_cpu(h->size);
-}
-
-static void _vdo_decode_geometry_region(struct vdo_volume_region *vr)
-{
-	vr->id = le32_to_cpu(vr->id);
-	vr->start_block = le64_to_cpu(vr->start_block);
-}
-
-static void _vdo_decode_volume_geometry(struct vdo_volume_geometry *vg)
-{
-	vg->release_version = le32_to_cpu(vg->release_version);
-	vg->nonce = le64_to_cpu(vg->nonce);
-	vg->bio_offset = le64_to_cpu(vg->bio_offset);
-	_vdo_decode_geometry_region(&vg->regions[VDO_DATA_REGION]);
-}
-
-static void _vdo_decode_volume_geometry_4(struct vdo_volume_geometry *vg,
-					  struct vdo_volume_geometry_4 *vg_4)
-{
-	vg->release_version = le32_to_cpu(vg_4->release_version);
-	vg->nonce = le64_to_cpu(vg_4->nonce);
-	vg->bio_offset = 0;
-	vg->regions[VDO_DATA_REGION] = vg_4->regions[VDO_DATA_REGION];
-	_vdo_decode_geometry_region(&vg->regions[VDO_DATA_REGION]);
-}
-
-static void _vdo_decode_config(struct vdo_config *vc)
-{
-	vc->logical_blocks = le64_to_cpu(vc->logical_blocks);
-	vc->physical_blocks = le64_to_cpu(vc->physical_blocks);
-	vc->slab_size = le64_to_cpu(vc->slab_size);
-	vc->recovery_journal_size = le64_to_cpu(vc->recovery_journal_size);
-	vc->slab_journal_blocks = le64_to_cpu(vc->slab_journal_blocks);
-}
-
-static void _vdo_decode_pvc(struct vdo_component_41_0 *pvc)
-{
-	_vdo_decode_config(&pvc->config);
-	pvc->nonce = le64_to_cpu(pvc->nonce);
-}
-
-bool dm_vdo_parse_logical_size(const char *vdo_path, uint64_t *logical_blocks)
-{
-	char buffer[4096];
-	int fh;
-	bool r = false;
-	struct stat st;
-	uint64_t size;
-	uint64_t regpos;
-
-	struct vdo_header h;
-	struct vdo_version_number vn;
-	struct vdo_volume_geometry vg;
-	struct vdo_volume_geometry_4 vg_4;
-	struct vdo_component_41_0 pvc;
-
-	*logical_blocks = 0;
-	if ((fh = open(vdo_path, O_RDONLY)) == -1) {
-		log_sys_debug("Failed to open VDO backend %s.", vdo_path);
-		return false;
-	}
-
-	if (ioctl(fh, BLKGETSIZE64, &size) == -1) {
-		if (errno != ENOTTY) {
-			log_sys_debug("ioctl", vdo_path);
-			goto err;
-		}
-
-		/* lets retry for file sizes */
-		if (fstat(fh, &st) < 0) {
-			log_sys_debug("fstat", vdo_path);
-			goto err;
-		}
-
-		size = st.st_size;
-	}
-
-	if (read(fh, buffer, sizeof(buffer)) < 0) {
-		log_sys_debug("read", vdo_path);
-		goto err;
-	}
-
-	if (strncmp(buffer, _MAGIC_NUMBER, MAGIC_NUMBER_SIZE)) {
-		log_debug_activation("Found mismatching VDO magic header in %s.", vdo_path);
-		goto err;
-	}
-
-	memcpy(&h, buffer + MAGIC_NUMBER_SIZE, sizeof(h));
-	_vdo_decode_header(&h);
-
-	if (h.id != 5) {
-		log_debug_activation("Expected geometry VDO block instead of block %u.", h.id);
-		goto err;
-	}
-
-	switch (h.version.major_version) {
-	case 4:
-		memcpy(&vg_4, buffer + MAGIC_NUMBER_SIZE + sizeof(h), sizeof(vg_4));
-		_vdo_decode_volume_geometry_4(&vg, &vg_4);
-		break;
-	case 5:
-		memcpy(&vg, buffer + MAGIC_NUMBER_SIZE + sizeof(h), sizeof(vg));
-		_vdo_decode_volume_geometry(&vg);
-		break;
-	default:
-		log_debug_activation("Unsupported VDO version %u.%u.", h.version.major_version, h.version.minor_version);
-		goto err;
-	}
-
-	regpos = (vg.regions[VDO_DATA_REGION].start_block - vg.bio_offset) * 4096;
-
-	if ((regpos + sizeof(buffer)) > size) {
-		log_debug_activation("File/Device is shorter and can't provide requested VDO volume region at " FMTu64 " > " FMTu64 ".", regpos, size);
-		goto err;
-	}
-
-	if (lseek(fh, regpos, SEEK_SET) < 0) {
-		log_sys_debug("lseek", vdo_path);
-		goto err;
-	}
-
-	if (read(fh, buffer, sizeof(buffer)) < 0) {
-		log_sys_debug("read", vdo_path);
-		goto err;
-	}
-
-	memcpy(&vn, buffer + sizeof(struct vdo_geometry_block), sizeof(vn));
-	_vdo_decode_version(&vn);
-
-	if (vn.major_version > 41) {
-		log_debug_activation("Unknown VDO component version %u.", vn.major_version); // should be 41!
-		goto err;
-	}
-
-	memcpy(&pvc, buffer + sizeof(struct vdo_geometry_block) + sizeof(vn), sizeof(pvc));
-	_vdo_decode_pvc(&pvc);
-
-	if (pvc.nonce != vg.nonce) {
-		log_debug_activation("VDO metadata has mismatching VDO nonces " FMTu64 " != " FMTu64 ".", pvc.nonce, vg.nonce);
-		goto err;
-	}
-
-#if 0
-	log_debug_activation("LogBlocks    " FMTu64 ".", pvc.config.logical_blocks);
-	log_debug_activation("PhyBlocks    " FMTu64 ".", pvc.config.physical_blocks);
-	log_debug_activation("SlabSize     " FMTu64 ".", pvc.config.slab_size);
-	log_debug_activation("RecJourSize  " FMTu64 ".", pvc.config.recovery_journal_size);
-	log_debug_activation("SlabJouSize  " FMTu64 ".", pvc.config.slab_journal_blocks);
-#endif
-
-	*logical_blocks = pvc.config.logical_blocks;
-	r = true;
-err:
-	(void) close(fh);
-
-	return r;
-}
--- a/device_mapper/vdo/vdo_target.c
+++ b/device_mapper/vdo/vdo_target.c
@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2018-2022 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2018 Red Hat, Inc. All rights reserved.
 *
 * This file is part of LVM2.
 *
@ -18,117 +18,82 @@
 #include "vdo_limits.h"
 #include "target.h"

-/* validate vdo target parameters and  'vdo_size' in sectors */
 bool dm_vdo_validate_target_params(const struct dm_vdo_target_params *vtp,
 				   uint64_t vdo_size)
 {
 	bool valid = true;

 	/* 512 or 4096 bytes only ATM */
-	if ((vtp->minimum_io_size != (512 >> SECTOR_SHIFT)) &&
-	    (vtp->minimum_io_size != (4096 >> SECTOR_SHIFT))) {
-		log_error("VDO minimum io size %u is unsupported [512, 4096].",
+	if ((vtp->minimum_io_size != 1) &&
+	    (vtp->minimum_io_size != 8)) {
+		log_error("VDO minimum io size %u is unsupported.",
 			  vtp->minimum_io_size);
 		valid = false;
 	}

 	if ((vtp->block_map_cache_size_mb < DM_VDO_BLOCK_MAP_CACHE_SIZE_MINIMUM_MB) ||
 	    (vtp->block_map_cache_size_mb > DM_VDO_BLOCK_MAP_CACHE_SIZE_MAXIMUM_MB)) {
-		log_error("VDO block map cache size %u MiB is out of range [%u..%u].",
-			  vtp->block_map_cache_size_mb,
-			  DM_VDO_BLOCK_MAP_CACHE_SIZE_MINIMUM_MB,
-			  DM_VDO_BLOCK_MAP_CACHE_SIZE_MAXIMUM_MB);
-		valid = false;
-	}
-
-	if ((vtp->block_map_era_length < DM_VDO_BLOCK_MAP_ERA_LENGTH_MINIMUM) ||
-	    (vtp->block_map_era_length > DM_VDO_BLOCK_MAP_ERA_LENGTH_MAXIMUM)) {
-		log_error("VDO block map era length %u is out of range [%u..%u].",
-			  vtp->block_map_era_length,
-			  DM_VDO_BLOCK_MAP_ERA_LENGTH_MINIMUM,
-			  DM_VDO_BLOCK_MAP_ERA_LENGTH_MAXIMUM);
+		log_error("VDO block map cache size %u out of range.",
+			  vtp->block_map_cache_size_mb);
 		valid = false;
 	}

 	if ((vtp->index_memory_size_mb < DM_VDO_INDEX_MEMORY_SIZE_MINIMUM_MB) ||
 	    (vtp->index_memory_size_mb > DM_VDO_INDEX_MEMORY_SIZE_MAXIMUM_MB)) {
-		log_error("VDO index memory size %u MiB is out of range [%u..%u].",
-			  vtp->index_memory_size_mb,
-			  DM_VDO_INDEX_MEMORY_SIZE_MINIMUM_MB,
-			  DM_VDO_INDEX_MEMORY_SIZE_MAXIMUM_MB);
+		log_error("VDO index memory size %u out of range.",
+			  vtp->index_memory_size_mb);
 		valid = false;
 	}

 	if ((vtp->slab_size_mb < DM_VDO_SLAB_SIZE_MINIMUM_MB) ||
 	    (vtp->slab_size_mb > DM_VDO_SLAB_SIZE_MAXIMUM_MB)) {
-		log_error("VDO slab size %u MiB is out of range [%u..%u].",
-			  vtp->slab_size_mb,
-			  DM_VDO_SLAB_SIZE_MINIMUM_MB,
-			  DM_VDO_SLAB_SIZE_MAXIMUM_MB);
+		log_error("VDO slab size %u out of range.",
+			  vtp->slab_size_mb);
 		valid = false;
 	}

 	if ((vtp->max_discard < DM_VDO_MAX_DISCARD_MINIMUM) ||
 	    (vtp->max_discard > DM_VDO_MAX_DISCARD_MAXIMUM)) {
-		log_error("VDO max discard %u is out of range [%u..%u].",
-			  vtp->max_discard,
-			  DM_VDO_MAX_DISCARD_MINIMUM,
-			  DM_VDO_MAX_DISCARD_MAXIMUM);
+		log_error("VDO max discard %u out of range.",
+			  vtp->max_discard);
 		valid = false;
 	}

 	if (vtp->ack_threads > DM_VDO_ACK_THREADS_MAXIMUM) {
-		log_error("VDO ack threads %u is out of range [0..%u].",
-			  vtp->ack_threads,
-			  DM_VDO_ACK_THREADS_MAXIMUM);
+		log_error("VDO ack threads %u out of range.", vtp->ack_threads);
 		valid = false;
 	}

 	if ((vtp->bio_threads < DM_VDO_BIO_THREADS_MINIMUM) ||
 	    (vtp->bio_threads > DM_VDO_BIO_THREADS_MAXIMUM)) {
-		log_error("VDO bio threads %u is out of range [%u..%u].",
-			  vtp->bio_threads,
-			  DM_VDO_BIO_THREADS_MINIMUM,
-			  DM_VDO_BIO_THREADS_MAXIMUM);
+		log_error("VDO bio threads %u out of range.", vtp->bio_threads);
 		valid = false;
 	}

 	if ((vtp->bio_rotation < DM_VDO_BIO_ROTATION_MINIMUM) ||
 	    (vtp->bio_rotation > DM_VDO_BIO_ROTATION_MAXIMUM)) {
-		log_error("VDO bio rotation %u is out of range [%u..%u].",
-			  vtp->bio_rotation,
-			  DM_VDO_BIO_ROTATION_MINIMUM,
-			  DM_VDO_BIO_ROTATION_MAXIMUM);
+		log_error("VDO bio rotation %u out of range.", vtp->bio_rotation);
 		valid = false;
 	}

 	if ((vtp->cpu_threads < DM_VDO_CPU_THREADS_MINIMUM) ||
 	    (vtp->cpu_threads > DM_VDO_CPU_THREADS_MAXIMUM)) {
-		log_error("VDO cpu threads %u is out of range [%u..%u].",
-			  vtp->cpu_threads,
-			  DM_VDO_CPU_THREADS_MINIMUM,
-			  DM_VDO_CPU_THREADS_MAXIMUM);
+		log_error("VDO cpu threads %u out of range.", vtp->cpu_threads);
 		valid = false;
 	}

 	if (vtp->hash_zone_threads > DM_VDO_HASH_ZONE_THREADS_MAXIMUM) {
-		log_error("VDO hash zone threads %u is out of range [0..%u].",
-			  vtp->hash_zone_threads,
-			  DM_VDO_HASH_ZONE_THREADS_MAXIMUM);
+		log_error("VDO hash zone threads %u out of range.", vtp->hash_zone_threads);
 		valid = false;
 	}

 	if (vtp->logical_threads > DM_VDO_LOGICAL_THREADS_MAXIMUM) {
-		log_error("VDO logical threads %u is out of range [0..%u].",
-			  vtp->logical_threads,
-			  DM_VDO_LOGICAL_THREADS_MAXIMUM);
+		log_error("VDO logical threads %u out of range.", vtp->logical_threads);
 		valid = false;
 	}

 	if (vtp->physical_threads > DM_VDO_PHYSICAL_THREADS_MAXIMUM) {
-		log_error("VDO physical threads %u is out of range [0..%u].",
-			  vtp->physical_threads,
-			  DM_VDO_PHYSICAL_THREADS_MAXIMUM);
+		log_error("VDO physical threads %u out of range.", vtp->physical_threads);
 		valid = false;
 	}

@ -155,10 +120,10 @@ bool dm_vdo_validate_target_params(const struct dm_vdo_target_params *vtp,
 		valid = false;
 	}

-	if (vdo_size > DM_VDO_LOGICAL_SIZE_MAXIMUM) {
-		log_error("VDO logical size is larger than limit " FMTu64 " TiB by " FMTu64 " KiB.",
-			  DM_VDO_LOGICAL_SIZE_MAXIMUM / (UINT64_C(1024) * 1024 * 1024 * 1024 >> SECTOR_SHIFT),
-			  (vdo_size - DM_VDO_LOGICAL_SIZE_MAXIMUM) / 2);
+	if (vdo_size >= (DM_VDO_LOGICAL_SIZE_MAXIMUM_MB * UINT64_C(1024 * 2))) {
+		log_error("VDO logical size is by " FMTu64 "KiB bigger then limit " FMTu64 "TiB.",
+			  (vdo_size - (DM_VDO_LOGICAL_SIZE_MAXIMUM_MB * UINT64_C(1024 * 2))) / 2,
+			  DM_VDO_LOGICAL_SIZE_MAXIMUM_MB / UINT64_C(1024) / UINT64_C(1024));
 		valid = false;
 	}

--- a/doc/Problems.mdwn
+++ b/doc/Problems.mdwn
@ -1,24 +0,0 @@
-# Common problems
-
-## Duplicate PVs in the system
-
-LVM tries to detect the common sources of duplicates, mdadm RAID and multipath,
-there are cases where duplicate PV appears on the system.
-
-There are two solutions to this problem:
-
-* Setting a *global_filter* configuration option.
-* Using of *devices_file* (See [lvmdevices(8)](https://man7.org/linux/man-pages/man8/lvmdevices.8.html))
-
-## Device Filtering
-
-*filter* and *global_filter* are meant to be used in two ways:
-
-* as an allow list, listing patterns for devices which will be accepted
-* `a|/dev/sdX|`, and rejecting the rest `r|.*|`,
-* as a reject list, listing only patterns for devices which will be rejected
-* `r|/dev/sdX|`,
-
-Even though there are situations where it works, mixing reject and accept
-patterns is not recommended.
-
--- a/doc/README.mdwn
+++ b/doc/README.mdwn
@ -1,34 +0,0 @@
-LVM2 Wiki Documentation
-=======================
-
-If you are looking for information about LVM2 visit the [[Index]] page,
-
-There are only some notes about writing stuff under *./doc* here:
-
-* If possible use [[MarkDown]] for formatting, use *.md* (or *.mdwn*) suffix.
-* For linking between files, use [[IkiWiki]] syntax `[[FileName]]` or
-  `[[FileName#Anchor]]`, or `[[link text|FileName]]`
-
-Markdown 
--------
-
-* Use `<!-- comment -->` to keep notes, which will not be rendered.
-* Use `[[TODO]]` for anything what needs attention. This will be accessible
-  through the linked [[TODO]] page.
-
-IkiWiki
-------
-
-* Install ikiwiki:
-
-      yum install ikiwiki
-
-* To generate the content, run following in the LVM2 top directory:
-
-      ikiwiki --setup ikiwiki.setup
-
-Internal Stuff:
---------------
-
-* [[TODO]] Can we have a section which is hidden by default? Like this one?
-* [[TODO]] Add basic IkiWiki and MarkDown How To.
--- a/doc/index.mdwn
+++ b/doc/index.mdwn
@ -1,152 +0,0 @@
-# LVM - Logical Volume Manager for Linux
-
-<!--
-* TODO: Add banner for Important News: Critical Bugs, Important Announcements,...
-->
-
-<!--
-* TODO: Add a feed for latest articles/release-notes on the right
-->
-
-<!--
-## About LVM2
-->
-LVM aka LVM2 refers to the userspace toolset that provide logical volume
-management facilities on linux.
-<!--
-It is reasonably backwards-compatible with the
-original LVM1 toolset.
-* TODO: Add information about LVM1 metadata format conversion!
-->
-
-LVM offers more flexibility than using partitions, allowing one to
-
-* grow and, where supported by filesystem, shrink volumes,
-* create snapshots of existing volumes,
-* mirror data on multiple disks including RAID levels 5 or 6,
-* striping data on multiple disks,
-* create a read or write cache.
-
-To use LVM2 you need 3 things:
-
-* [device-mapper](https://sourceware.org/dm/) in your kernel (upstream since long ago)
-* the userspace device-mapper support library (*libdevmapper*) (part of lvm2)
-* and the userspace LVM2 tools.
-
-## Getting LVM
-
-Most of linux distribution offer packaged LVM tools.
-Depending on your distribution use
-
-    # RPM based distributions (Fedora):
-    yum install lvm2
-    # DEB based distributions (Debian, Ubuntu):
-    apt-get install lvm2
-
-Tarballs of the userspace LVM2 source code releases are available from [sourceware.org](https://sourceware.org/pub/lvm2/) [ftp](ftp://sourceware.org/pub/lvm2/).
-
-List of official [mirror sites](https://sourceware.org/mirrors.html) (including http and rsync protocols).
-
-### LVM Releases
-
-[[!inline pages="release-notes/2.03.* and !*/template and !*/Discussion and !tagged(draft) and !tagged(pending)" limit=2 rootpage="release-notes"]]
-
-[[More releases|release-notes/index]]
-
-## Getting Started
-
-<!--
-TODO: We are missing a lvm(7) man page explaining this, I think it would be a nic addition!
-And perhaps so would be a lvmtroubleshooting(7) guide.
-->
-Word of warning first! Even though LVM errs on the side of data safety it is a
-tool with low level access and one may seriously harm their data when used
-incorrectly!
-
-
-* Physical Volume (PV) is underlying disk, local or remote, encrypted or even
-  a mdadm RAID volume. PV is divided into so called Physical Extents (PE) which
-  are a basic allocation unit.
-  List PVs using [pvs(8)](https://man7.org/linux/man-pages/man8/pvs.8.html) or
-  [pvdisplay(8)](https://man7.org/linux/man-pages/man8/pvdisplay.8.html).
-
-  Make one by running `pvcreate /dev/sdX`.
-  See [pvcreate(8)](https://man7.org/linux/man-pages/man8/pvcreate.8.html). This step is optional.
-* Volume Group (VG) consisting of one or more PVs is used as a pool from which LVs are allocated.
-  List VGs using [vgs(8)](https://man7.org/linux/man-pages/man8/vgs.8.html) or
-  [vgdisplay(8)](https://man7.org/linux/man-pages/man8/vgdisplay.8.html).
-
-  Make one by running `vgcreate VGNAME /dev/sdX...`, add PVs to existing one by `vgextend VGNAME /dev/sdX`.
-  To use LVM at least one Volume Group must be present on the system.
-  See [vgcreate(8)](https://man7.org/linux/man-pages/man8/vgcreate.8.html), and
-  [vgextend(8)](https://man7.org/linux/man-pages/man8/vgextend.8.html).
-* Logical Volume (LV) is the block device usually visible to user to be used for file system.
-  List PVs using [lvs(8)](https://man7.org/linux/man-pages/man8/lvs.8.html) or
-  [lvdisplay(8)](https://man7.org/linux/man-pages/man8/lvdisplay.8.html).
-
-  Make one by running `lvcreate [-n LVNAME] -L SIZE VGNAME`, and you are done!
-  See [vgcreate(8)](https://man7.org/linux/man-pages/man8/vgcreate.8.html).
-
-## Avoiding Problems
-
-Good start is to avoid using `{--force|-f}` and `{--yes|-y}` options which are
-often seen on internet discussions.
-there is a possibility of data loss, LVM tools usually ask, so read the prompts
-carefully!  Using `--yes` removes these safety.
-Also in some cases where it is too dangerous to proceed, e.g. device is used,
-LVM refuses to do so, which can be overridden by `--force`.
-
-Second, when resizing and especially when shrinking LVs it is always a good
-idea to use `--resizefs` option which ensures the devices are resized in
-correct order.
-
-Third, if you still make a mess, never ever run fsck on damaged LV/FS, this is
-usually the final blow to your data. It is always better to ask first!
-
-
-## Documentation
-
-## Resolving Problems
-
-* Backup if possible!
-* Search the problem first, check the list of [[common problems|Problems]]
-* Never run `fsck` on damaged LV, LV must be recovered first!
-* When asking for help describe exactly how the system got corrupted. It really
-  does not help trying to cover one's mistakes in such situation, it takes
-  longer to get help and also you are likely to get wrong answer making repair
-  impossible.
-
-## Reporting Bugs
-
-* When you find a problem there is often something specific about your system.
-  If the problem is reproducible run the failing command(s) with verbose flag
-  `-vvvv` which gives developers clue where the problem might be.
-  There is a [lvmdump(8)](https://man7.org/linux/man-pages/man8/lvmdump.8.html)
-  tool to help collect data about your system, block devices and LVM setup.
-* Please report upstream bugs or request features in [Red Hat Bugzilla](https://bugzilla.redhat.com/enter_bug.cgi?product=LVM%20and%20device-mapper)
-
-<!--
-TODO:
-* Add links to other documentation
-* Add links to git
-* Add links to mailing lists
-
-* Resolving problems
-  * Backup if possible!
-  * Newer run fsck! Do the research first!
-  * List of Common issues
-    * Resizing in wrong order
-    * Thin pool running out of space
-    * Configuration - duplicates
-  * Mailing list
-  * IRC?
-
-* Reporting Bugs
-  * sosreport/lvmdump
-  * BZ
-
-* Contributing
-  * gitlab MR
-
-* Add latest articles
-->
--- a/Show More
+++ b/Show More