dm-integrity support

dm-integrity stores checksums of the data written to an LV, and returns an error if data read from the LV does not match the previously saved checksum. Create a linear LV with a dm-integrity layer above it: lvcreate --type integrity --integrity String [options] Create a raid1 LV with a dm-integrity layer over each raid image: lvcreate --type raid1 --integrity y [options] Add a dm-integrity layer to an existing linear LV, or to each image of an existing raid1 LV: lvconvert --integrity y LV Remove the dm-integrity layer from a linear LV, or from the images of a raid1 LV: lvconvert --integrity n LV Integrity metadata: The --integrity String specifies if the dm-integrity metadata (checksums) should be interleaved with data blocks, or written to a separate external LV. --integrity external (default) Use integrity with metadata on a separate LV. Allows removing integrity from the LV later. --integrity y Same as integrity external. --integrity n Remove integrity (external metadata only.) --integrity internal Use integrity with metadata interleaved with data on the same LV. Only allowed with new linear LVs. Internal integrity cannot be removed from an LV. Around 1% of the LV size is used for integrity metadata. Command variations: lvcreate --type integrity -n Name -L Size VG [Uses integrity external, the default.] lvcreate --integrity y|external -n Name -L Size VG [Uses type integrity, which is implied.] lvcreate --integrity internal -n Name -L Size VG [Uses type integrity, which is implied.] lvcreate --type raid1 --integrity y -m Num -n Name -L Size VG [Uses type integrity for each raid image.] lvconvert --type integrity LV [Converts linear LV to type integrity.] lvconvert --integrity y|external LV [Converts linear LV to type integrity, or each image to type integrity in a raid1 LV.] Options: --integritymetadata LV Use the specified LV for external metadata. Allows specific device placement of metadata. Without this option, the command creates a hidden LV (with an _imeta suffix) to hold the metadata. (Not usable with raid1+integrity.) --integritysettings String set dm-integrity parameters, e.g. to use a journal instead of bitmap, --integritysettings "mode=J". Example: $ lvcreate --integrity external -n lvex -L1G vg $ lvs -a vg LV VG Attr LSize Origin lvex vg gwi-a----- 1.00g [lvex_iorig] [lvex_imeta] vg ewi-ao---- 12.00m [lvex_iorig] vg -wi-ao---- 1.00g $ lvcreate --integrity internal -n lvin -L1G vg $ lvs -a vg LV VG Attr LSize Origin lvin vg gwi-a----- 1.00g [lvin_iorig] [lvin_iorig] vg -wi-ao---- 1.00g $ lvcreate --type raid1 --integrity y -m 1 -n lver -L1G vg $ lvs -a vg LV VG Attr LSize Origin lver vg rwi-a-r--- 1.00g [lver_rimage_0] vg gwi-aor--- 1.00g [lver_rimage_0_iorig] [lver_rimage_0_imeta] vg ewi-ao---- 12.00m [lver_rimage_0_iorig] vg -wi-ao---- 1.00g [lver_rimage_1] vg gwi-aor--- 1.00g [lver_rimage_1_iorig] [lver_rimage_1_imeta] vg ewi-ao---- 12.00m [lver_rimage_1_iorig] vg -wi-ao---- 1.00g [lver_rmeta_0] vg ewi-aor--- 4.00m [lver_rmeta_1] vg ewi-aor--- 4.00m
2025-09-30 17:44:21 +03:00 · 2019-12-16 16:34:57 -06:00
664 changed files with 38482 additions and 71713 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -16,10 +16,6 @@
 *.sw*
 *~

-# gcov files:
-*.gcda
-*.gcno
-
 .export.sym
 .exported_symbols_generated
 .gdb_history
@@ -34,21 +30,14 @@ make.tmpl
 /config.log
 /config.status
 /configure.scan
-/cscope.*
+/cscope.out
 /html/
-/python/
 /reports/
 /tags
 /tmp/

 coverity/coverity_model.xml

-/libdm/.symver_check
-
-daemons/clvmd
-daemons/dmfilemapd
-daemons/lvmetad/
-
 tools/man-generator
 tools/man-generator.c

@@ -108,8 +97,6 @@ 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
@@ -119,7 +106,6 @@ 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
@@ -129,7 +115,6 @@ 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
@@ -142,11 +127,8 @@ test/lib/lvm
 test/lib/lvm-wrapper
 test/lib/lvmchange
 test/lib/lvmdbusd.profile
-test/lib/lvmdevices
 test/lib/lvmetad
 test/lib/lvmpolld
-test/lib/lvm_import_vdo
-test/lib/lvm_vdo_wrapper
 test/lib/not
 test/lib/paths
 test/lib/paths-common
@@ -156,7 +138,5 @@ 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/Makefile.in
+++ b/Makefile.in
@@ -18,7 +18,7 @@ top_builddir = @top_builddir@
 abs_top_builddir = @abs_top_builddir@
 abs_top_srcdir = @abs_top_srcdir@

-SUBDIRS = libdm conf daemons include lib libdaemon man scripts tools
+SUBDIRS = conf daemons include lib libdaemon libdm man scripts tools

 ifeq ("@UDEV_RULES@", "yes")
  SUBDIRS += udev
@@ -47,6 +47,8 @@ include $(top_srcdir)/base/Makefile
 include $(top_srcdir)/device_mapper/Makefile
 include $(top_srcdir)/test/unit/Makefile

+libdm: include
+libdaemon: include
 lib: libdaemon $(BASE_TARGET) $(DEVICE_MAPPER_TARGET)
 daemons: lib libdaemon tools
 scripts: lib
@@ -54,13 +56,16 @@ tools: lib libdaemon
 po: tools daemons
 man: tools
 all_man: tools
+scripts: libdm
 test: tools daemons
 unit-test  run-unit-test: test

+lib.device-mapper: include.device-mapper
+libdm.device-mapper: include.device-mapper
 daemons.device-mapper: libdm.device-mapper
 tools.device-mapper: libdm.device-mapper
+scripts.device-mapper: include.device-mapper
 device-mapper: tools.device-mapper daemons.device-mapper man.device-mapper
-device_mapper: device-mapper

 ifeq ("@INTL@", "yes")
 lib.pofile: include.pofile
@@ -76,10 +81,9 @@ daemons.cflow: tools.cflow
 cflow: include.cflow
 endif

-CSCOPE_DIRS = base daemons device_mapper include lib libdaemon scripts tools libdm test
 ifneq ("@CSCOPE_CMD@", "")
 cscope.out:
-	@CSCOPE_CMD@ -b -R $(patsubst %,-s%,$(addprefix $(srcdir)/,$(CSCOPE_DIRS)))
+	@CSCOPE_CMD@ -b -R -s$(top_srcdir)
 all: cscope.out
 endif
 DISTCLEAN_TARGETS += cscope.out
@@ -112,11 +116,11 @@ rpm: dist
 	$(LN_S) -f $(abs_top_srcdir)/spec/packages.inc $(rpmbuilddir)/SOURCES
 	DM_VER=$$(cut -d- -f1 $(top_srcdir)/VERSION_DM);\
 	GIT_VER=$$(cd $(top_srcdir); git describe | cut -d- --output-delimiter=. -f2,3 || echo 0);\
-	$(SED) -e "s,\(device_mapper_version\) [0-9.]*$$,\1 $$DM_VER," \
+	sed -e "s,\(device_mapper_version\) [0-9.]*$$,\1 $$DM_VER," \
 	    -e "s,^\(Version:[^0-9%]*\)[0-9.]*$$,\1 $(LVM_VER)," \
 	    -e "s,^\(Release:[^0-9%]*\)[0-9.]\+,\1 $$GIT_VER," \
 	    $(top_srcdir)/spec/source.inc >$(rpmbuilddir)/SOURCES/source.inc
-	V=$(V) rpmbuild -v --define "_topdir $(rpmbuilddir)" -ba $(top_srcdir)/spec/lvm2.spec
+	rpmbuild -v --define "_topdir $(rpmbuilddir)" -ba $(top_srcdir)/spec/lvm2.spec

 generate: conf.generate man.generate
 	$(MAKE) -C conf generate
@@ -150,31 +154,6 @@ install_all_man:
 install_tmpfiles_configuration:
 	$(MAKE) -C scripts install_tmpfiles_configuration

-help:
-	@echo -e "\nAvailable targets:"
-	@echo "  all			Default target."
-	@echo "  all_man		Build all man pages with generators."
-	@echo "  clean			Remove all compile files."
-	@echo "  device-mapper		Device mapper part of lvm2."
-	@echo "  dist			Generate distributable file."
-	@echo "  distclean		Remove all build files."
-	@echo "  generate		Generate man pages for sources."
-	@echo "  help			Display callable targets."
-	@echo "  install		Install all files."
-	@echo "  install_all_man	Install all man pages."
-	@echo "  install_cluster	Install cmirrord."
-	@echo "  install_device-mapper	Install device mapper files."
-	@echo "  install_initscripts	Install initialization scripts."
-	@echo "  install_lvm2		Install lvm2 files."
-	@echo "  install_systemd_units	Install systemd units."
-	@echo "  lcov			Generate lcov output."
-	@echo "  lcov-dated		Generate lcov with timedate suffix."
-	@echo "  lcov-reset		Reset lcov counters"
-	@echo "  man			Build man pages."
-	@echo "  rpm			Build rpm."
-	@echo "  run-unit-test		Run unit tests."
-	@echo "  tags			Generate c/etags."
-
 ifneq ("$(LCOV)", "")
 .PHONY: lcov-reset lcov lcov-dated

@@ -204,8 +183,8 @@ endif
 ifneq ($(shell which ctags 2>/dev/null),)
 .PHONY: tags
 tags:
-	test -z "$(shell find $(addprefix $(top_srcdir)/,$(CSCOPE_DIRS)) -type f -name '*.[ch]' -newer tags 2>/dev/null | head -1)" || $(RM) tags
-	test -f tags || find $(addprefix $(top_srcdir)/,$(CSCOPE_DIRS)) -maxdepth 5 -type f -name '*.[ch]' -exec ctags -a '{}' +
+	test -z "$(shell find $(top_srcdir) -type f -name '*.[ch]' -newer tags 2>/dev/null | head -1)" || $(RM) tags
+	test -f tags || find $(top_srcdir) -maxdepth 5 -type f -name '*.[ch]' -exec ctags -a '{}' +

 CLEAN_TARGETS += tags
 endif
--- a/11
+++ b/11
@@ -1,6 +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.
+This is development branch, for stable 2.02 release see 2018-06-01-stable
+branch.

 For more information about LVM2 read the changelog in the WHATS_NEW file.
 Installation instructions are in INSTALL.
@@ -9,6 +10,7 @@ There is no warranty - see COPYING and COPYING.LIB.

 Tarballs are available from:
  ftp://sourceware.org/pub/lvm2/
+  ftp://sources.redhat.com/pub/lvm2/
  https://github.com/lvmteam/lvm2/releases

 The source code is stored in git:
@@ -43,9 +45,6 @@ Report upstream bugs at:
 or open issues at:
  https://github.com/lvmteam/lvm2/issues

-The source code repository used until 7th June 2012 is accessible using CVS:
+The source code repository used until 7th June 2012 is accessible here:
+  http://sources.redhat.com/cgi-bin/cvsweb.cgi/LVM2/?cvsroot=lvm2.

-  cvs -d :pserver:cvs@sourceware.org:/cvs/lvm2 login cvs
-  cvs -d :pserver:cvs@sourceware.org:/cvs/lvm2 checkout LVM2
-
-The password is cvs.
--- a/2
+++ b/2
@@ -1 +1 @@
-2.03.17(2)-git (2022-05-18)
+2.03.08(2)-git (2019-11-30)
--- a/2
+++ b/2
@@ -1 +1 @@
-1.02.187-git (2022-05-18)
+1.02.169-git (2019-11-30)
--- a/206
+++ b/206
@@ -1,206 +1,5 @@
-Version 2.03.17 - 
-===============================
-  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.
-  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.
-
-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 lossing of delete message on thin-pool extension.
-
-Version 2.03.15 - 07th February 2022
+Version 2.03.08 - 
 ====================================
-  Remove service based autoactivation. global/event_activation = 0 is NOOP.
-  Improve support for metadata profiles for --type writecache.
-  Use cache or active DM device when available with new kernels.
-  Introduce function to utilize UUIDs from DM_DEVICE_LIST.
-  Increase some hash table size to better support large device sets.
-
-Version 2.03.14 - 20th October 2021
-===================================
-  Device scanning is skipping directories on different filesystems.
-  Print info message with too many or too large archived files.
-  Reduce metadata readings during scanning phase.
-  Optimize computation of crc32 check sum with multiple PVs.
-  Enhance recover path on cache creation failure.
-  Filter out unsupported MQ/SMQ cache policy setting.
-  Fix memleak in mpath filter.
-  Support newer location for VDO statistics.
-  Add support for VDO async-unsafe write policy.
-  Improve lvm_import_vdo script.
-  Support VDO LV with lvcreate -ky.
-  Fix lvconvert for VDO LV bigger then 2T.
-  Create VDO LVs automatically without zeroing.
-  Rename vdoimport to lvm_import_vdo.
-
-Version 2.03.13 - 11th August 2021
-==================================
-  Changes in udev support:
-  - obtain_device_list_from_udev defaults to 0.
-  - see devices/external_device_info_source,
-    devices/obtain_device_list_from_udev, and devices/multipath_wwids_file help
-    in lvm.conf
-  Fix devices file handling of loop with deleted backing file.
-  Fix devices file handling of scsi_debug WWIDs.
-  Fix many static analysis issues.
-  Support --poolmetadataspare with vgsplit and vgmerge.
-  Fix detection of active components of external origin volume.
-  Add vdoimport tool to support conversion of VDO volumes.
-  Support configurable allocation/vdo_pool_header_size.
-  Fix handling of lvconvert --type vdo-pool --virtualsize.
-  Simplified handling of archive() and backup() internal calls.
-  Add 'idm' locking type for IDM lock manager.
-  Fix load of kvdo target when it is not present in memory (2.03.12).
-
-Version 2.03.12 - 07th May 2021
-===============================
-  Allow attaching cache to thin data volume.
-  Fix memleak when generating list of outdated pvs.
-  Better hyphenation usage in man pages.
-  Replace use of deprecated security_context_t with char*.
-  Configure supports AIO_LIBS and AIO_CFLAGS.
-  Improve build process for static builds.
-  New --setautoactivation option to modify LV or VG auto activation.
-  New metadata based autoactivation property for LVs and VGs.
-  Improve signal handling with lvmpolld.
-  Signal handler can interrupt command also for SIGTERM.
-  Lvreduce --yes support.
-  Add configure option --with/out-symvers for non-glibc builds.
-  Report error when the filesystem is missing on fsadm resized volume.
-  Handle better blockdev with --getsize64 support for fsadm.
-  Do not include editline/history.h when using editline library.
-  Support error and zero segtype for thin-pool data for testing.
-  Support mixed extension for striped, error and zero segtypes.
-  Support resize also for stacked virtual volumes.
-  Skip dm-zero devices just like with dm-error target.
-  Reduce ioctl() calls when checking target status.
-  Merge polling does not fail, when LV is found to be already merged.
-  Poll volumes with at least 100ms delays.
-  Do not flush dm cache when cached LV is going to be removed.
-  New lvmlockctl_kill_command configuration option.
-  Support interruption while waiting on device close before deactivation.
-  Flush thin-pool messages before removing more thin volumes.
-  Improve hash function with less collisions and make it faster.
-  Reduce ioctl count when deactivating volumes.
-  Reduce number of metadata parsing.
-  Enhance performance of lvremove and vgremove commands.
-  Support interruption when taking archive and backup.
-  Accelerate large lvremoves.
-  Speedup search for cached device nodes.
-  Speedup command initialization.
-  Add devices file feature, off by default for now.
-  Support extension of writecached volumes.
-  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 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.
-  Improve thin-performance profile support conversion to thin-pool.
-  Add workaround to avoid read of internal 'converted' devices.
-  Prohibit merging snapshot into the read-only thick snapshot origin.
-  Restore support for flipping rw/r permissions for thin snapshot origin.
-  Support resize of cached volumes.
-  Disable autoactivation with global/event_activation=0.
-  Check if lvcreate passes read_only_volume_list with tags and skips zeroing.
-  Allocation prints better error when metadata cannot fit on a single PV.
-  Pvmove can better resolve full thin-pool tree move.
-  Limit pool metadata spare to 16GiB.
-  Improves conversion and allocation of pool metadata.
-  Support thin pool metadata 15.88GiB, adds 64MiB, thin_pool_crop_metadata=0.
-  Enhance lvdisplay to report raid available/partial.
-  Support online rename of VDO pools.
-  Improve removal of pmspare when last pool is removed.
-  Fix problem with wiping of converted LVs.
-  Fix memleak in scanning  (2.03.11).
-  Fix corner case allocation for thin-pools.
-
-Version 2.03.11 - 08th January 2021
-===================================
-  Fix pvck handling MDA at offset different from 4096.
-  Partial or degraded activation of writecache is not allowed.
-  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 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.
-  Configure use own python path name order to prefer using python3.
-  Add configure --enable-editline support as an alternative to readline.
-  Enhance reporting and error handling when creating thin volumes.
-  Enable vgsplit for VDO volumes.
-  Lvextend of vdo pool volumes ensure at least 1 new VDO slab is added.
-  Use revert_lv() on reload error path after vg_revert().
-  Configure --with-integrity enabled.
-  Restore lost signal blocking while VG lock is held.
-  Improve estimation of needed extents when creating thin-pool.
-  Use extra 1% when resizing thin-pool metadata LV with --use-policy.
-  Enhance --use-policy percentage rounding.
-  Configure --with-vdo and --with-writecache as internal segments.
-  Improving VDO man page examples.
-  Allow pvmove of writecache origin.
-  Report integrity fields.
-  Integrity volumes defaults to journal mode.
-  Switch code base to use flexible array syntax.
-  Fix 64bit math when calculation cachevol size.
-  Preserve uint32_t for seqno handling.
-  Switch from mmap to plain read when loading regular files.
-  Update lvmvdo man page and better explain DISCARD usage.
-
-Version 2.03.10 - 09th August 2020
-==================================
-  Add writecache and integrity support to lvmdbusd.
-  Generate unique cachevol name when default required from lvcreate.
-  Converting RAID1 volume to one with same number of legs now succeeds with a
-  warning.
-  Fix conversion to raid from striped lagging type.
-  Fix conversion to 'mirrored' mirror log with larger regionsize.
-  Zero pool metadata on allocation (disable with allocation/zero_metadata=0).
-  Failure in zeroing or wiping will fail command (bypass with -Zn, -Wn).
-  Add lvcreate of new cache or writecache lv with single command.
-  Fix running out of free buffers for async writing for larger writes.
-  Add integrity with raid capability.
-  Fix support for lvconvert --repair used by foreign apps (i.e. Docker).
-
-Version 2.03.09 - 26th March 2020
-=================================
-  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
-====================================
-  Prevent problematic snapshots of writecache volumes.
-  Add error handling for failing allocation in _reserve_area().
-  Fix memleak in syncing of internal cache.
-  Fix pvck dump_current_text memleak.
-  Fix lvmlockd result code on error path for _query_lock_lv().
-  Update pvck man page and help output.
-  Reject invalid writecache high/low_watermark setting.
-  Report writecache status.
-  Accept more output lines from vdo_format.
-  Prohibit reshaping of stacked raid LVs.
-  Avoid running cache input arg validation when creating vdo pool.
-  Prevent raid reshaping of stacked volumes.
-  Added VDO lvmdbusd methods for enable/disable compression & dedupe.
-  Added VDO lvmdbusd method for converting LV to VDO pool.

 Version 2.03.07 - 30th November 2019
 ====================================
@@ -330,6 +129,7 @@ Version 2.03.00 - 10th October 2018
  Remove clvmd
  Remove lvmlib (api)
  Remove lvmetad
+  lvconvert: provide possible layouts between linear and striped/raid
  Use versionsort to fix archive file expiry beyond 100000 files.

 Version 2.02.178-rc1 - 24th May 2018
@@ -1849,7 +1649,7 @@ Version 2.02.105 - 20th January 2014
  Allow lvmetad to reuse stale socket.
  Only unlink lvmetad socket on error if created by the same process.
  Append missing newline to lvmetad missing socket path error message.
-  Check for non-zero alignment in _text_pv_add_metadata_area() to not div by 0.
+  Check for non-zero aligment in _text_pv_add_metadata_area() to not div by 0.
  Add allocation/use_blkid_wiping to lvm.conf to enable blkid wiping.
  Enable blkid_wiping by default if the blkid library is present.
  Add configure --disable-blkid_wiping to disable libblkid signature detection.
--- a/44
+++ b/44
@@ -1,44 +1,4 @@
-Version 1.02.187 - 
-================================
-  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
-=====================================
-  Unmangle UUIDs for DM_DEVICE_LIST ioctl.
-
-Version 1.02.181 - 20th October 2021
-====================================
-  Add IMA support with 'dmsetup measure' command.
-  Add defines DM_NAME_LIST_FLAG_HAS_UUID, DM_NAME_LIST_FLAG_DOESNT_HAVE_UUID.
-  Enhance tracking of activated devices when preloading dm tree.
-  Fix bug in construction of cache table line (regression from 1.02.159).
-
-Version 1.02.179 - 11th August 2021
-===================================
-
-Version 1.02.177 - 07th May 2021
-================================
-  Configure proceeds without libaio to allow build of device-mapper only.
-  Fix symbol versioning build with -O2 -flto.
-  Add dm_tree_node_add_thin_pool_target_v1 with crop_metadata support.
-
-Version 1.02.175 - 08th January 2021
-====================================
-
-Version 1.02.173 - 09th August 2020
-===================================
-  Add support for VDO in blkdeactivate script.
-
-Version 1.02.171 - 26th March 2020
-==================================
-  Try to remove all created devices on dm preload tree error path.
-  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
+Version 1.02.169 - 
 =====================================
  Enhance error messages for device creation.

@@ -578,7 +538,7 @@ Version 1.02.86 - 23rd June 2014
  Add DM_REPORT_FIELD_TYPE_STRING_LIST: separate string and string list fields.
  Add dm_str_list to libdevmapper for string list type definition and its reuse.
  Add dmsetup -S/--select to define selection criteria for dmsetup reports.
-  Add dm_report_init_with_selection to initialize report with selection criteria.
+  Add dm_report_init_with_selection to intialize report with selection criteria.
  Add DM_REPORT_FIELD_TYPE_SIZE: separate number and size reporting fields.
  Use RemoveOnStop for dm-event.socket systemd unit.
  Document env var 'DM_DEFAULT_NAME_MANGLING_MODE' in dmsetup man page.
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -1,6 +1,6 @@
-# generated automatically by aclocal 1.16.5 -*- Autoconf -*-
+# generated automatically by aclocal 1.15.1 -*- Autoconf -*-

-# Copyright (C) 1996-2021 Free Software Foundation, Inc.
+# Copyright (C) 1996-2017 Free Software Foundation, Inc.

 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -413,7 +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) 1999-2017 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -446,12 +446,10 @@ AC_DEFUN([AM_PATH_PYTHON],
 [
  dnl Find a Python interpreter.  Python versions prior to 2.0 are not
  dnl supported. (2.0 was released on October 16, 2000).
+  dnl FIXME: Remove the need to hard-code Python versions here.
  m4_define_default([_AM_PYTHON_INTERPRETER_LIST],
-[python python2 python3 dnl
- python3.9 python3.8 python3.7 python3.6 python3.5 python3.4 python3.3 dnl
- python3.2 python3.1 python3.0 dnl
- python2.7 python2.6 python2.5 python2.4 python2.3 python2.2 python2.1 dnl
- python2.0])
+[python python2 python3 python3.5 python3.4 python3.3 python3.2 python3.1 python3.0 python2.7 dnl
+ python2.6 python2.5 python2.4 python2.3 python2.2 python2.1 python2.0])

  AC_ARG_VAR([PYTHON], [the Python interpreter])

@@ -492,141 +490,34 @@ 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

-  dnl Query Python for its version number.  Although site.py simply uses
-  dnl sys.version[:3], printing that failed with Python 3.10, since the
-  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
+  dnl Query Python for its version number.  Getting [:3] seems to be
+  dnl the best way to do this; it's what "site.py" does in the standard
+  dnl library.
+
  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=`$PYTHON -c "import sys; sys.stdout.write(sys.version[[:3]])"`])
  AC_SUBST([PYTHON_VERSION], [$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
@@ -646,95 +537,96 @@ 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
+
 ])


@@ -757,7 +649,7 @@ 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) 2001-2017 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/base/data-struct/hash.c
+++ b/base/data-struct/hash.c
@@ -22,26 +22,17 @@ struct dm_hash_node {
 	void *data;
 	unsigned data_len;
 	unsigned keylen;
-	unsigned hash;
 	char key[0];
 };

 struct dm_hash_table {
 	unsigned num_nodes;
-	unsigned num_hint;
-	unsigned mask_slots;    /* (slots - 1) -> used as hash mask */
-	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 colision with same masked hash and len ? */
+	unsigned num_slots;
 	struct dm_hash_node **slots;
 };

-#if 0 /* TO BE REMOVED */
-static unsigned _hash(const void *key, unsigned len)
-{
-	/* Permutation of the Integers 0 through 255 */
-	static unsigned char _nums[] = {
+/* Permutation of the Integers 0 through 255 */
+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,
@@ -66,16 +57,29 @@ static unsigned _hash(const void *key, unsigned len)
 	44, 38, 31, 149, 135, 0, 216, 52, 63, 23, 37, 69, 39, 117, 146, 184,
 	163, 200, 222, 235, 248, 243, 219, 10, 152, 131, 123, 229, 203, 76, 120,
 	209
-	};
+};

-	const uint8_t *str = key;
-	unsigned h = 0, g;
+static struct dm_hash_node *_create_node(const char *str, unsigned len)
+{
+	struct dm_hash_node *n = malloc(sizeof(*n) + len);
+
+	if (n) {
+		memcpy(n->key, str, len);
+		n->keylen = len;
+	}
+
+	return n;
+}
+
+static unsigned long _hash(const char *str, unsigned len)
+{
+	unsigned long h = 0, g;
 	unsigned i;

 	for (i = 0; i < len; i++) {
 		h <<= 4;
-		h += _nums[*str++];
-		g = h & ((unsigned) 0xf << 16u);
+		h += _nums[(unsigned char) *str++];
+		g = h & ((unsigned long) 0xf << 16u);
 		if (g) {
 			h ^= g >> 16u;
 			h ^= g >> 5u;
@@ -85,99 +89,30 @@ static unsigned _hash(const void *key, unsigned len)
 	return h;
 }

-/* In-kernel DM hashing, still lots of collisions */
-static unsigned _hash_in_kernel(const char *key, unsigned len)
-{
-	const unsigned char *str = (unsigned char *)key;
-	const unsigned hash_mult = 2654435387U;
-	unsigned hash = 0, i;
-
-	for (i = 0; i < len; ++i)
-		hash = (hash + str[i]) * hash_mult;
-
-	return hash;
-}
-#endif
-
-#undef get16bits
-#if (defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__)))
-#define get16bits(d) (*((const uint16_t *) (d)))
-#endif
-
-#if !defined (get16bits)
-#define get16bits(d) ((((uint32_t)(((const uint8_t *)(d))[1])) << 8)\
-                       +(uint32_t)(((const uint8_t *)(d))[0]) )
-#endif
-
-/*
- * Adapted Bob Jenkins hash to read by 2 bytes if possible.
- * https://secure.wikimedia.org/wikipedia/en/wiki/Jenkins_hash_function
- *
- * Reduces amount of hash collisions
- */
-static unsigned _hash(const void *key, unsigned len)
-{
-	const uint8_t *str = (uint8_t*) key;
-	unsigned hash = 0, i;
-	unsigned sz = len / 2;
-
-	for(i = 0; i < sz; ++i) {
-		hash += get16bits(str + 2 * i);
-		hash += (hash << 10);
-		hash ^= (hash >> 6);
-	}
-
-	if (len & 1) {
-		hash += str[len - 1];
-		hash += (hash << 10);
-		hash ^= (hash >> 6);
-	}
-
-	hash += (hash << 3);
-	hash ^= (hash >> 11);
-	hash += (hash << 15);
-
-	return hash;
-}
-
-static struct dm_hash_node *_create_node(const void *key, unsigned len)
-{
-	struct dm_hash_node *n = malloc(sizeof(*n) + len);
-
-	if (n) {
-		memcpy(n->key, key, len);
-		n->keylen = len;
-	}
-
-	return n;
-}
-
 struct dm_hash_table *dm_hash_create(unsigned size_hint)
 {
 	size_t len;
 	unsigned new_size = 16u;
 	struct dm_hash_table *hc = zalloc(sizeof(*hc));

-	if (!hc) {
-		log_error("Failed to allocate memory for hash.");
-		return 0;
-	}
-
-	hc->num_hint = size_hint;
+	if (!hc)
+		return_0;

 	/* round size hint up to a power of two */
 	while (new_size < size_hint)
 		new_size = new_size << 1;

-	hc->mask_slots = new_size - 1;
+	hc->num_slots = new_size;
 	len = sizeof(*(hc->slots)) * new_size;
-	if (!(hc->slots = zalloc(len))) {
-		free(hc);
-		log_error("Failed to allocate slots for hash.");
-		return 0;
-	}
+	if (!(hc->slots = zalloc(len)))
+		goto_bad;

 	return hc;
+
+      bad:
+	free(hc->slots);
+	free(hc);
+	return 0;
 }

 static void _free_nodes(struct dm_hash_table *t)
@@ -185,16 +120,7 @@ static void _free_nodes(struct dm_hash_table *t)
 	struct dm_hash_node *c, *n;
 	unsigned i;

-#ifdef DEBUG
-	log_debug("Free hash hint:%d slots:%d nodes:%d (s:%d f:%d c:%d h:%d)",
-		  t->num_hint, t->mask_slots + 1, t->num_nodes,
-		  t->search, t->found, t->collisions, t->same_hash);
-#endif
-
-	if (!t->num_nodes)
-		return;
-
-	for (i = 0; i <= t->mask_slots; i++)
+	for (i = 0; i < t->num_slots; i++)
 		for (c = t->slots[i]; c; c = n) {
 			n = c->next;
 			free(c);
@@ -208,30 +134,21 @@ void dm_hash_destroy(struct dm_hash_table *t)
 	free(t);
 }

-static struct dm_hash_node **_findh(struct dm_hash_table *t, const void *key,
-				    uint32_t len, unsigned hash)
-{
-	struct dm_hash_node **c;
-
-	++t->search;
-	for (c = &t->slots[hash & t->mask_slots]; *c; c = &((*c)->next)) {
-		if ((*c)->keylen == len && (*c)->hash == hash) {
-			if (!memcmp(key, (*c)->key, len)) {
-				++t->found;
-				break;
-			}
-			++t->same_hash;
-		}
-		++t->collisions;
-	}
-
-	return c;
-}
-
 static struct dm_hash_node **_find(struct dm_hash_table *t, const void *key,
 				   uint32_t len)
 {
-	return _findh(t, key, len, _hash(key, len));
+	unsigned h = _hash(key, len) & (t->num_slots - 1);
+	struct dm_hash_node **c;
+
+	for (c = &t->slots[h]; *c; c = &((*c)->next)) {
+		if ((*c)->keylen != len)
+			continue;
+
+		if (!memcmp(key, (*c)->key, len))
+			break;
+	}
+
+	return c;
 }

 void *dm_hash_lookup_binary(struct dm_hash_table *t, const void *key,
@@ -245,8 +162,7 @@ void *dm_hash_lookup_binary(struct dm_hash_table *t, const void *key,
 int dm_hash_insert_binary(struct dm_hash_table *t, const void *key,
 			  uint32_t len, void *data)
 {
-	unsigned hash = _hash(key, len);
-	struct dm_hash_node **c = _findh(t, key, len, hash);
+	struct dm_hash_node **c = _find(t, key, len);

 	if (*c)
 		(*c)->data = data;
@@ -257,7 +173,6 @@ int dm_hash_insert_binary(struct dm_hash_table *t, const void *key,
 			return 0;

 		n->data = data;
-		n->hash = hash;
 		n->next = 0;
 		*c = n;
 		t->num_nodes++;
@@ -301,7 +216,7 @@ static struct dm_hash_node **_find_str_with_val(struct dm_hash_table *t,
 	struct dm_hash_node **c;
 	unsigned h;
       
-	h = _hash(key, len) & t->mask_slots;
+	h = _hash(key, len) & (t->num_slots - 1);

 	for (c = &t->slots[h]; *c; c = &((*c)->next)) {
 		if ((*c)->keylen != len)
@@ -332,7 +247,7 @@ int dm_hash_insert_allow_multiple(struct dm_hash_table *t, const char *key,
 	n->data = (void *)val;
 	n->data_len = val_len;

-	h = _hash(key, len) & t->mask_slots;
+	h = _hash(key, len) & (t->num_slots - 1);

 	first = t->slots[h];

@@ -400,7 +315,7 @@ void *dm_hash_lookup_with_count(struct dm_hash_table *t, const char *key, int *c

 	*count = 0;

-	h = _hash(key, len) & t->mask_slots;
+	h = _hash(key, len) & (t->num_slots - 1);

 	for (c = &t->slots[h]; *c; c = &((*c)->next)) {
 		if ((*c)->keylen != len)
@@ -429,7 +344,7 @@ void dm_hash_iter(struct dm_hash_table *t, dm_hash_iterate_fn f)
 	struct dm_hash_node *c, *n;
 	unsigned i;

-	for (i = 0; i <= t->mask_slots; i++)
+	for (i = 0; i < t->num_slots; i++)
 		for (c = t->slots[i]; c; c = n) {
 			n = c->next;
 			f(c->data);
@@ -439,8 +354,8 @@ void dm_hash_iter(struct dm_hash_table *t, dm_hash_iterate_fn f)
 void dm_hash_wipe(struct dm_hash_table *t)
 {
 	_free_nodes(t);
-	memset(t->slots, 0, sizeof(struct dm_hash_node *) * (t->mask_slots + 1));
-	t->num_nodes = t->collisions = t->search = t->same_hash = 0u;
+	memset(t->slots, 0, sizeof(struct dm_hash_node *) * t->num_slots);
+	t->num_nodes = 0u;
 }

 char *dm_hash_get_key(struct dm_hash_table *t __attribute__((unused)),
@@ -460,7 +375,7 @@ static struct dm_hash_node *_next_slot(struct dm_hash_table *t, unsigned s)
 	struct dm_hash_node *c = NULL;
 	unsigned i;

-	for (i = s; i <= t->mask_slots && !c; i++)
+	for (i = s; i < t->num_slots && !c; i++)
 		c = t->slots[i];

 	return c;
@@ -473,5 +388,7 @@ struct dm_hash_node *dm_hash_get_first(struct dm_hash_table *t)

 struct dm_hash_node *dm_hash_get_next(struct dm_hash_table *t, struct dm_hash_node *n)
 {
-	return n->next ? n->next : _next_slot(t, (n->hash & t->mask_slots) + 1);
+	unsigned h = _hash(n->key, n->keylen) & (t->num_slots - 1);
+
+	return n->next ? n->next : _next_slot(t, h + 1);
 }
--- a/base/data-struct/list.h
+++ b/base/data-struct/list.h
@@ -1,8 +1,6 @@
 #ifndef BASE_DATA_STRUCT_LIST_H
 #define BASE_DATA_STRUCT_LIST_H

-#include "base/memory/container_of.h"
-
 //----------------------------------------------------------------

 /*
@@ -100,7 +98,7 @@ struct dm_list *dm_list_next(const struct dm_list *head, const struct dm_list *e
 * contained in a structure of type t, return the containing structure.
 */
 #define dm_list_struct_base(v, t, head) \
-    container_of(v, t, head)
+    ((t *)((const char *)(v) - (const char *)&((t *) 0)->head))

 /*
 * Given the address v of an instance of 'struct dm_list list' contained in
@@ -113,7 +111,7 @@ struct dm_list *dm_list_next(const struct dm_list *head, const struct dm_list *e
 * return another element f.
 */
 #define dm_struct_field(v, t, e, f) \
-    (((t *)((uintptr_t)(v) - offsetof(t, e)))->f)
+    (((t *)((uintptr_t)(v) - (uintptr_t)&((t *) 0)->e))->f)

 /*
 * Given the address v of a known element e in a known structure of type t,
--- a/base/data-struct/radix-tree-adaptive.c
+++ b/base/data-struct/radix-tree-adaptive.c
@@ -47,7 +47,7 @@ struct value_chain {
 struct prefix_chain {
 	struct value child;
 	unsigned len;
-	uint8_t prefix[];
+	uint8_t prefix[0];
 };

 struct node4 {
@@ -1032,7 +1032,7 @@ void radix_tree_iterate(struct radix_tree *rt, uint8_t *kb, uint8_t *ke,
 {
 	struct lookup_result lr = _lookup_prefix(&rt->root, kb, ke);
 	if (lr.kb == ke || _prefix_chain_matches(&lr, ke))
-		(void) _iterate(lr.v, it);
+        	_iterate(lr.v, it);
 }

 //----------------------------------------------------------------
--- a/base/memory/container_of.h
+++ b/base/memory/container_of.h
@@ -1,4 +1,4 @@
-// Copyright (C) 2018 - 2020 Red Hat, Inc. All rights reserved.
+// Copyright (C) 2018 Red Hat, Inc. All rights reserved.
 // 
 // This file is part of LVM2.
 //
@@ -13,12 +13,10 @@
 #ifndef BASE_MEMORY_CONTAINER_OF_H
 #define BASE_MEMORY_CONTAINER_OF_H

-#include <stddef.h>  // offsetof
-
 //----------------------------------------------------------------

 #define container_of(v, t, head) \
-    ((t *)((char *)(v) - offsetof(t, head)))
+    ((t *)((const char *)(v) - (const char *)&((t *) 0)->head))

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

--- a/conf/example.conf.in
+++ b/conf/example.conf.in
--- a/conf/lvmlocal.conf.in
+++ b/conf/lvmlocal.conf.in
@@ -28,13 +28,13 @@ local {
 	# main configuration file, e.g. lvm.conf. When used, it must be set to
 	# a unique value among all hosts sharing access to the storage,
 	# e.g. a host name.
-	#
+	# 
 	# Example
 	# Set no system ID:
 	# system_id = ""
 	# Set the system_id to a specific name:
 	# system_id = "host1"
-	#
+	# 
 	# This configuration option has an automatic default value.
 	# system_id = ""

--- a/10372
+++ b/10372
--- a/configure.ac
+++ b/configure.ac
--- a/coverity/coverity_model.c
+++ b/coverity/coverity_model.c
@@ -46,7 +46,6 @@ const char *find_config_tree_str(struct cmd_context *cmd, int id, struct profile
 	return "STRING";
 }

-/*
 struct logical_volume *origin_from_cow(const struct logical_volume *lv)
 {
 	if (lv)
@@ -54,7 +53,6 @@ struct logical_volume *origin_from_cow(const struct logical_volume *lv)

 	__coverity_panic__();
 }
-*/

 /* simple_memccpy() from glibc */
 void *memccpy(void *dest, const void *src, int c, size_t n)
--- a/daemons/cmirrord/Makefile.in
+++ b/daemons/cmirrord/Makefile.in
@@ -22,9 +22,6 @@ SOURCES = clogd.c cluster.c compat.c functions.c link_mon.c local.c logging.c

 TARGETS = cmirrord

-CFLOW_SOURCES = $(addprefix $(srcdir)/, $(SOURCES))
-CFLOW_TARGET := $(TARGETS)
-
 include $(top_builddir)/make.tmpl

 LMLIBS += $(CPG_LIBS)
@@ -36,8 +33,6 @@ cmirrord: $(OBJECTS)
 	$(Q) $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $(OBJECTS) \
 		$(LMLIBS) -L$(top_builddir)/libdm -ldevmapper $(LIBS)

-install_cluster: $(TARGETS)
+install: $(TARGETS)
 	@echo "    [INSTALL] $<"
-	$(Q) $(INSTALL_PROGRAM) -D $< $(usrsbindir)/$(<F)
-
-install: install_cluster
+	$(Q) $(INSTALL_PROGRAM) -D cmirrord $(usrsbindir)/cmirrord
--- a/daemons/cmirrord/clogd.c
+++ b/daemons/cmirrord/clogd.c
@@ -245,7 +245,6 @@ static void daemonize(void)
 	}

 	LOG_OPEN("cmirrord", LOG_PID, LOG_DAEMON);
-	/* coverity[leaked_handle] devnull cannot leak here */
 }

 /*
--- a/daemons/cmirrord/cluster.c
+++ b/daemons/cmirrord/cluster.c
@@ -108,7 +108,7 @@ static SaVersionT version = { 'B', 1, 1 };
 #endif

 #define DEBUGGING_HISTORY 100
-#define DEBUGGING_BUFLEN 270
+#define DEBUGGING_BUFLEN 128
 #define LOG_SPRINT(cc, f, arg...) do {				\
 		cc->idx++;					\
 		cc->idx = cc->idx % DEBUGGING_HISTORY;		\
@@ -1383,7 +1383,7 @@ static void cpg_leave_callback(struct clog_cpg *match,
 			       size_t member_list_entries)
 {
 	unsigned i;
-	int j, fd = -1;
+	int j, fd;
 	uint32_t lowest = match->lowest_id;
 	struct clog_request *rq, *n;
 	struct checkpoint_data *p_cp, *c_cp;
@@ -1548,7 +1548,7 @@ static void cpg_config_callback(cpg_handle_t handle, const struct cpg_name *gnam
 				   member_list, member_list_entries);
 }

-static cpg_callbacks_t cpg_callbacks = {
+cpg_callbacks_t cpg_callbacks = {
 	.cpg_deliver_fn = cpg_message_callback,
 	.cpg_confchg_fn = cpg_config_callback,
 };
--- a/daemons/cmirrord/cluster.h
+++ b/daemons/cmirrord/cluster.h
@@ -39,7 +39,7 @@ struct clog_request {
 	 * machine.  If the two are equal, there is no need
 	 * to do endian conversions.
 	 */
-	union version_u {
+	union {
 		uint64_t version[2]; /* LE version and native version */
 		struct dm_list list;
 	} u;
--- a/daemons/cmirrord/functions.c
+++ b/daemons/cmirrord/functions.c
@@ -34,7 +34,7 @@
 #define LOG_OFFSET 2

 #define RESYNC_HISTORY 50
-#define RESYNC_BUFLEN 270
+#define RESYNC_BUFLEN 128
 //static char resync_history[RESYNC_HISTORY][128];
 //static int idx = 0;
 #define LOG_SPRINT(_lc, f, arg...) do {					\
@@ -378,7 +378,7 @@ static int _clog_ctr(char *uuid, uint64_t luid,
 	uint32_t block_on_error = 0;

 	int disk_log;
-	char disk_path[PATH_MAX] = { 0 };
+	char disk_path[PATH_MAX];
 	int unlink_path = 0;
 	long page_size;
 	int pages;
@@ -658,7 +658,8 @@ static int clog_dtr(struct dm_ulog_request *rq)
 	if (lc->disk_fd != -1 && close(lc->disk_fd))
 		LOG_ERROR("Failed to close disk log: %s",
 			  strerror(errno));
-	free(lc->disk_buffer);
+	if (lc->disk_buffer)
+		free(lc->disk_buffer);
 	free(lc->clean_bits);
 	free(lc->sync_bits);
 	free(lc);
--- a/daemons/dmeventd/Makefile.in
+++ b/daemons/dmeventd/Makefile.in
@@ -14,21 +14,11 @@
 srcdir = @srcdir@
 top_srcdir = @top_srcdir@
 top_builddir = @top_builddir@
-abs_srcdir = @abs_srcdir@

 SOURCES = libdevmapper-event.c
 SOURCES2 = dmeventd.c

 TARGETS = dmeventd
-CFLOW_SOURCES = $(addprefix $(srcdir)/, $(SOURCES) $(SOURCES2) \
-	plugins/lvm2/dmeventd_lvm.c \
-	plugins/mirror/dmeventd_mirror.c \
-	plugins/raid/dmeventd_raid.c \
-	plugins/snapshot/dmeventd_snapshot.c \
-	plugins/thin/dmeventd_thin.c \
-	plugins/vdo/dmeventd_vdo.c \
-	)
-CFLOW_TARGET := $(TARGETS)

 .PHONY: install_lib_dynamic install_lib_static install_include \
 	install_pkgconfig install_dmeventd_dynamic install_dmeventd_static \
@@ -47,7 +37,6 @@ endif

 LIB_VERSION = $(LIB_VERSION_DM)
 LIB_SHARED = $(LIB_NAME).$(LIB_SUFFIX)
-LIBS = $(PTHREAD_LIBS) -L$(interfacebuilddir) -ldevmapper

 CLEAN_TARGETS = dmeventd.static $(LIB_NAME).a

@@ -57,6 +46,7 @@ endif

 CFLOW_LIST = $(SOURCES)
 CFLOW_LIST_TARGET = $(LIB_NAME).cflow
+CFLOW_TARGET = dmeventd

 EXPORTED_HEADER = $(srcdir)/libdevmapper-event.h
 EXPORTED_FN_PREFIX = dm_event
@@ -65,26 +55,34 @@ include $(top_builddir)/make.tmpl

 all: device-mapper
 device-mapper: $(TARGETS)
-plugins.device-mapper: $(LIB_SHARED)

 CFLAGS_dmeventd.o += $(EXTRA_EXEC_CFLAGS)
+LIBS += $(PTHREAD_LIBS) -L$(top_builddir)/libdm -ldevmapper

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

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

 ifeq ("@PKGCONFIG@", "yes")
  INSTALL_LIB_TARGETS += install_pkgconfig
 endif

+ifneq ("$(CFLOW_CMD)", "")
+CFLOW_SOURCES = $(addprefix $(srcdir)/, $(SOURCES))
+-include $(top_builddir)/lib/liblvm-internal.cflow
+-include $(top_builddir)/lib/liblvm2cmd.cflow
+-include $(top_builddir)/daemons/dmeventd/$(LIB_NAME).cflow
+-include $(top_builddir)/daemons/dmeventd/plugins/mirror/$(LIB_NAME)-lvm2mirror.cflow
+endif
+
 install_include: $(srcdir)/libdevmapper-event.h
-	@echo "    [INSTALL] $(<F)"
+	@echo "    [INSTALL] $<"
 	$(Q) $(INSTALL_DATA) -D $< $(includedir)/$(<F)

 install_pkgconfig: libdevmapper-event.pc
--- a/daemons/dmeventd/dmeventd.c
+++ b/daemons/dmeventd/dmeventd.c
@@ -678,9 +678,6 @@ static int _get_status(struct message_data *message_data)
 	char **buffers;
 	char *message;

-	if (!message_data->id)
-		return -EINVAL;
-
 	_lock_mutex();
 	count = dm_list_size(&_thread_registry);
 	buffers = alloca(sizeof(char*) * count);
@@ -755,7 +752,7 @@ static void _exit_timeout(void *unused __attribute__((unused)))
 static void *_timeout_thread(void *unused __attribute__((unused)))
 {
 	struct thread_status *thread;
-	struct timespec timeout, real_time;
+	struct timespec timeout;
 	time_t curr_time;
 	int ret;

@@ -766,16 +763,7 @@ static void *_timeout_thread(void *unused __attribute__((unused)))
 	while (!dm_list_empty(&_timeout_registry)) {
 		timeout.tv_sec = 0;
 		timeout.tv_nsec = 0;
-#ifndef HAVE_REALTIME
 		curr_time = time(NULL);
-#else
-		if (clock_gettime(CLOCK_REALTIME, &real_time)) {
-			log_error("Failed to read clock_gettime().");
-			break;
-		}
-		/* 10ms back to the future */
-		curr_time = real_time.tv_sec + ((real_time.tv_nsec > (1000000000 - 10000000)) ? 1 : 0);
-#endif

 		dm_list_iterate_items_gen(thread, &_timeout_registry, timeout_list) {
 			if (thread->next_time <= curr_time) {
@@ -1075,7 +1063,6 @@ out:
 	 * "label at end of compound statement" */
 	;

-	/* coverity[lock_order] _global_mutex is kept locked */
 	pthread_cleanup_pop(1);

 	return NULL;
@@ -1498,34 +1485,37 @@ static int _client_read(struct dm_event_fifos *fifos,
 		t.tv_usec = 0;
 		ret = select(fifos->client + 1, &fds, NULL, NULL, &t);

-		if (!ret && bytes)
-			continue; /* trying to finish read */
+		if (!ret && !bytes)	/* nothing to read */
+			return 0;

-		if (ret <= 0)	/* nothing to read */
-			goto bad;
+		if (!ret)	/* trying to finish read */
+			continue;
+
+		if (ret < 0)	/* error */
+			return 0;

 		ret = read(fifos->client, buf + bytes, size - bytes);
 		bytes += ret > 0 ? ret : 0;
-		if (!msg->data && (bytes == 2 * sizeof(uint32_t))) {
+		if (header && (bytes == 2 * sizeof(uint32_t))) {
 			msg->cmd = ntohl(header[0]);
+			size = msg->size = ntohl(header[1]);
 			bytes = 0;
-
-			if (!(size = msg->size = ntohl(header[1])))
-				break;
-
-			if (!(buf = msg->data = malloc(msg->size)))
-				goto bad;
+			if (!size)
+				break; /* No data -> error */
+			buf = msg->data = malloc(msg->size);
+			if (!buf)
+				break; /* No mem -> error */
+			header = 0;
 		}
 	}

-	if (bytes == size)
-		return 1;
+	if (bytes != size) {
+		free(msg->data);
+		msg->data = NULL;
+		return 0;
+	}

-bad:
-	free(msg->data);
-	msg->data = NULL;
-
-	return 0;
+	return 1;
 }

 /*
@@ -1746,8 +1736,7 @@ static void _init_thread_signals(void)
 	sigset_t my_sigset;
 	struct sigaction act = { .sa_handler = _sig_alarm };

-	if (sigaction(SIGALRM, &act, NULL))
-		log_sys_debug("sigaction", "SIGLARM");
+	sigaction(SIGALRM, &act, NULL);
 	sigfillset(&my_sigset);

 	/* These are used for exiting */
@@ -2033,8 +2022,8 @@ static int _reinstate_registrations(struct dm_event_fifos *fifos)
 static void _restart_dmeventd(void)
 {
 	struct dm_event_fifos fifos = {
-		.client = -1,
 		.server = -1,
+		.client = -1,
 		/* FIXME Make these either configurable or depend directly on dmeventd_path */
 		.client_path = DM_EVENT_FIFO_CLIENT,
 		.server_path = DM_EVENT_FIFO_SERVER
@@ -2073,7 +2062,7 @@ static void _restart_dmeventd(void)
 			++count;
 		}

-	if (!(_initial_registrations = zalloc(sizeof(char*) * (count + 1)))) {
+	if (!(_initial_registrations = malloc(sizeof(char*) * (count + 1)))) {
 		fprintf(stderr, "Memory allocation registration failed.\n");
 		goto bad;
 	}
@@ -2085,6 +2074,7 @@ static void _restart_dmeventd(void)
 		}
 		message += strlen(message) + 1;
 	}
+	_initial_registrations[count] = NULL;

 	if (version >= 2) {
 		if (daemon_talk(&fifos, &msg, DM_EVENT_CMD_GET_PARAMETERS, "-", "-", 0, 0)) {
@@ -2247,8 +2237,7 @@ int main(int argc, char *argv[])

 	_init_thread_signals();

-	if (pthread_mutex_init(&_global_mutex, NULL))
-		exit(EXIT_FAILURE);
+	pthread_mutex_init(&_global_mutex, NULL);

 	if (!_systemd_activation && !_open_fifos(&fifos))
 		exit(EXIT_FIFO_FAILURE);
--- a/daemons/dmeventd/libdevmapper-event.c
+++ b/daemons/dmeventd/libdevmapper-event.c
@@ -237,16 +237,16 @@ static int _daemon_read(struct dm_event_fifos *fifos,
 			ret = select(fifos->server + 1, &fds, NULL, NULL, &tval);
 			if (ret < 0 && errno != EINTR) {
 				log_error("Unable to read from event server.");
-				goto bad;
+				return 0;
 			}
 			if ((ret == 0) && (i > 4) && !bytes) {
 				log_error("No input from event server.");
-				goto bad;
+				return 0;
 			}
 		}
 		if (ret < 1) {
 			log_error("Unable to read from event server.");
-			goto bad;
+			return 0;
 		}

 		ret = read(fifos->server, buf + bytes, size);
@@ -255,32 +255,25 @@ static int _daemon_read(struct dm_event_fifos *fifos,
 				continue;

 			log_error("Unable to read from event server.");
-			goto bad;
+			return 0;
 		}

 		bytes += ret;
-		if (!msg->data && (bytes == 2 * sizeof(uint32_t))) {
+		if (header && (bytes == 2 * sizeof(uint32_t))) {
 			msg->cmd = ntohl(header[0]);
+			msg->size = ntohl(header[1]);
+			buf = msg->data = malloc(msg->size);
+			size = msg->size;
 			bytes = 0;
-
-			if (!(size = msg->size = ntohl(header[1])))
-				break;
-
-			if (!(buf = msg->data = malloc(msg->size))) {
-				log_error("Unable to allocate message data.");
-				return 0;
-			}
+			header = 0;
 		}
 	}

-	if (bytes == size)
-		return 1;
-
-bad:
-	free(msg->data);
-	msg->data = NULL;
-
-	return 0;
+	if (bytes != size) {
+		free(msg->data);
+		msg->data = NULL;
+	}
+	return bytes == size;
 }

 /* Write message to daemon. */
@@ -615,8 +608,8 @@ static int _do_event(int cmd, char *dmeventd_path, struct dm_event_daemon_messag
 {
 	int ret;
 	struct dm_event_fifos fifos = {
-		.client = -1,
 		.server = -1,
+		.client = -1,
 		/* FIXME Make these either configurable or depend directly on dmeventd_path */
 		.client_path = DM_EVENT_FIFO_CLIENT,
 		.server_path = DM_EVENT_FIFO_SERVER
@@ -709,11 +702,15 @@ int dm_event_unregister_handler(const struct dm_event_handler *dmevh)
 static char *_fetch_string(char **src, const int delimiter)
 {
 	char *p, *ret;
-	size_t len = (p = strchr(*src, delimiter)) ?
-		(size_t)(p - *src) : strlen(*src);

-	if ((ret = strndup(*src, len)))
-		*src += len + 1;
+	if ((p = strchr(*src, delimiter)))
+		*p = 0;
+
+	if ((ret = strdup(*src)))
+		*src += strlen(ret) + 1;
+
+	if (p)
+		*p = delimiter;

 	return ret;
 }
--- a/daemons/dmeventd/plugins/lvm2/dmeventd_lvm.c
+++ b/daemons/dmeventd/plugins/lvm2/dmeventd_lvm.c
@@ -71,7 +71,7 @@ int dmeventd_lvm2_init(void)
 	if (!_lvm_handle) {
 		lvm2_log_fn(_lvm2_print_log);

-		if (!(_lvm_handle = lvm2_init_threaded()))
+		if (!(_lvm_handle = lvm2_init()))
 			goto out;

 		/*
--- a/daemons/dmeventd/plugins/mirror/Makefile.in
+++ b/daemons/dmeventd/plugins/mirror/Makefile.in
@@ -25,6 +25,9 @@ LIB_NAME = libdevmapper-event-lvm2mirror
 LIB_SHARED = $(LIB_NAME).$(LIB_SUFFIX)
 LIB_VERSION = $(LIB_VERSION_LVM)

+CFLOW_LIST = $(SOURCES)
+CFLOW_LIST_TARGET = $(LIB_NAME).cflow
+
 include $(top_builddir)/make.tmpl

 install_lvm2: install_dm_plugin
--- a/daemons/dmeventd/plugins/raid/Makefile.in
+++ b/daemons/dmeventd/plugins/raid/Makefile.in
@@ -24,6 +24,9 @@ LIB_NAME = libdevmapper-event-lvm2raid
 LIB_SHARED = $(LIB_NAME).$(LIB_SUFFIX)
 LIB_VERSION = $(LIB_VERSION_LVM)

+CFLOW_LIST = $(SOURCES)
+CFLOW_LIST_TARGET = $(LIB_NAME).cflow
+
 include $(top_builddir)/make.tmpl

 install_lvm2: install_dm_plugin
--- a/daemons/dmeventd/plugins/raid/dmeventd_raid.c
+++ b/daemons/dmeventd/plugins/raid/dmeventd_raid.c
@@ -77,7 +77,7 @@ static int _process_raid_event(struct dso_state *state, char *params, const char

 	if (dead) {
 		/*
-		 * Use the first event to run a repair ignoring any additional ones.
+		 * Use the first event to run a repair ignoring any additonal ones.
 		 *
 		 * We presume lvconvert to do pre-repair
 		 * checks to avoid bloat in this plugin.
--- a/daemons/dmeventd/plugins/thin/Makefile.in
+++ b/daemons/dmeventd/plugins/thin/Makefile.in
@@ -24,6 +24,9 @@ LIB_NAME = libdevmapper-event-lvm2thin
 LIB_SHARED = $(LIB_NAME).$(LIB_SUFFIX)
 LIB_VERSION = $(LIB_VERSION_LVM)

+CFLOW_LIST = $(SOURCES)
+CFLOW_LIST_TARGET = $(LIB_NAME).cflow
+
 include $(top_builddir)/make.tmpl

 install_lvm2: install_dm_plugin
--- a/daemons/dmeventd/plugins/vdo/Makefile.in
+++ b/daemons/dmeventd/plugins/vdo/Makefile.in
@@ -24,6 +24,9 @@ LIB_NAME = libdevmapper-event-lvm2vdo
 LIB_SHARED = $(LIB_NAME).$(LIB_SUFFIX)
 LIB_VERSION = $(LIB_VERSION_LVM)

+CFLOW_LIST = $(SOURCES)
+CFLOW_LIST_TARGET = $(LIB_NAME).cflow
+
 include $(top_builddir)/make.tmpl

 install_lvm2: install_dm_plugin
--- a/daemons/dmeventd/plugins/vdo/dmeventd_vdo.c
+++ b/daemons/dmeventd/plugins/vdo/dmeventd_vdo.c
@@ -22,7 +22,6 @@
 * 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 */
 #include "device_mapper/vdo/status.c"

 #include <sys/wait.h>
--- a/daemons/lvmdbusd/Makefile.in
+++ b/daemons/lvmdbusd/Makefile.in
@@ -15,8 +15,7 @@ srcdir = @srcdir@
 top_srcdir = @top_srcdir@
 top_builddir = @top_builddir@

-lvmdbuspydir = $(python3dir)/lvmdbusd
-lvmdbusdir = $(DESTDIR)$(lvmdbuspydir)
+lvmdbusdir = $(python3dir)/lvmdbusd

 LVMDBUS_SRCDIR_FILES = \
 	automatedproperties.py \
@@ -54,16 +53,16 @@ include $(top_builddir)/make.tmpl
 all:
 	$(Q) test -x $(LVMDBUSD) || chmod 755 $(LVMDBUSD)

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

 install_lvm2: install_lvmdbusd

--- a/daemons/lvmdbusd/automatedproperties.py
+++ b/daemons/lvmdbusd/automatedproperties.py
@@ -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):
@@ -156,15 +157,14 @@ class AutomatedProperties(dbus.service.Object):
 		if not self._ap_search_method:
 			return 0

+		search = self.lvm_id
+		if search_key:
+			search = search_key
+
 		# Either we have the new object state or we need to go fetch it
 		if object_state:
 			new_state = object_state
 		else:
-			if search_key:
-				search = search_key
-			else:
-				search = self.lvm_id
-
 			new_state = self._ap_search_method([search])[0]
 			assert isinstance(new_state, State)

--- a/daemons/lvmdbusd/background.py
+++ b/daemons/lvmdbusd/background.py
@@ -7,11 +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 subprocess
 from . import cfg
-from .cmdhandler import options_to_cli_args, LvmExecutionMeta, call_lvm
+from .cmdhandler import options_to_cli_args, LvmExecutionMeta
 import dbus
-from .utils import pv_range_append, pv_dest_ranges, log_error, log_debug
-from .request import RequestEntry
+from .utils import pv_range_append, pv_dest_ranges, log_error, log_debug,\
+	add_no_notify
+import os
 import threading
 import time

@@ -37,47 +39,58 @@ def lv_merge_cmd(merge_options, lv_full_name):
 	return cmd


-def _load_wrapper(ignored):
-	cfg.load()
-
-
-def _move_callback(job_state, line_str):
-	try:
-		if line_str.count(':') == 2:
-			(device, ignore, percentage) = line_str.split(':')
-
-			job_state.Percent = int(round(
-				float(percentage.strip()[:-1]), 1))
-
-			# While the move is in progress we need to periodically update
-			# the state to reflect where everything is at.  we will do this
-			# by scheduling the load to occur in the main work queue.
-			r = RequestEntry(
-				-1, _load_wrapper, ("_move_callback: load",), None, None, False)
-			cfg.worker_q.put(r)
-	except ValueError:
-		log_error("Trying to parse percentage which failed for %s" % 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.
+	command.insert(0, cfg.LVM_CMD)

-	meta = LvmExecutionMeta(time.time(), 0, command)
-	cfg.flightrecorder.add(meta)
+	# Instruct lvm to not register an event with us
+	command = add_no_notify(command)

-	ec, stdout, stderr = call_lvm(command, line_cb=_move_callback,
-									cb_data=job_state)
-	ended = time.time()
-	meta.completed(ended, ec, stdout, stderr)
+	#(self, start, ended, cmd, ec, stdout_txt, stderr_txt)
+	meta = LvmExecutionMeta(time.time(), 0, command, -1000, None, None)

-	if ec == 0:
+	cfg.blackbox.add(meta)
+
+	process = subprocess.Popen(command, stdout=subprocess.PIPE,
+								env=os.environ,
+								stderr=subprocess.PIPE, close_fds=True)
+
+	log_debug("Background process for %s is %d" %
+				(str(command), process.pid))
+
+	lines_iterator = iter(process.stdout.readline, b"")
+	for line in lines_iterator:
+		line_str = line.decode("utf-8")
+
+		# Check to see if the line has the correct number of separators
+		try:
+			if line_str.count(':') == 2:
+				(device, ignore, percentage) = line_str.split(':')
+				job_state.Percent = round(
+					float(percentage.strip()[:-1]), 1)
+
+				# While the move is in progress we need to periodically update
+				# the state to reflect where everything is at.
+				cfg.load()
+		except ValueError:
+			log_error("Trying to parse percentage which failed for %s" %
+				line_str)
+
+	out = process.communicate()
+
+	with meta.lock:
+		meta.ended = time.time()
+		meta.ec = process.returncode
+		meta.stderr_txt = out[1]
+
+	if process.returncode == 0:
 		job_state.Percent = 100
 	else:
 		raise dbus.exceptions.DBusException(
 			interface_name,
-			'Exit code %s, stderr = %s' % (str(ec), stderr))
+			'Exit code %s, stderr = %s' % (str(process.returncode), out[1]))

 	cfg.load()
 	return '/'
--- a/daemons/lvmdbusd/cfg.py
+++ b/daemons/lvmdbusd/cfg.py
@@ -16,8 +16,6 @@ from lvmdbusd import path

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

-LOCK_FILE = os.getenv("LVM_DBUSD_LOCKFILE", "/var/lock/lvm/lvmdbusd")
-
 # This is the global object manager
 om = None

@@ -92,14 +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():
    """
@@ -109,9 +104,3 @@ def exit_daemon():
    if run and loop:
        run.value = 0
        loop.quit()
-
-
-# Debug data for lvm
-lvmdebug = None
-
-systemd = False
--- a/daemons/lvmdbusd/cmdhandler.py
+++ b/daemons/lvmdbusd/cmdhandler.py
@@ -6,18 +6,17 @@
 #
 # 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
+from lvmdbusd.utils import pv_dest_ranges, log_debug, log_error, add_no_notify
 from lvmdbusd.lvm_shell_proxy import LVMShellProxy

 try:
@@ -25,6 +24,7 @@ try:
 except ImportError:
 	import json

+SEP = '{|}'

 total_time = 0.0
 total_count = 0
@@ -36,7 +36,7 @@ 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 +47,32 @@ 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):
@@ -99,23 +82,16 @@ def _debug_c(cmd, exit_code, out):
 	log_error(("STDERR=\n %s\n" % out[1]))


-def call_lvm(command, debug=False, line_cb=None,
-			 cb_data=None):
+def call_lvm(command, debug=False):
 	"""
 	Call an executable and return a tuple of exitcode, stdout, stderr
-	:param command: Command to execute
-	:param debug:   Dump debug to stdout
-	:param line_cb:	Call the supplied function for each line read from
-					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 callback to allow caller access to
-								its own data
-
-	# Callback signature
-	def my_callback(my_context, line_read_stdin)
-		pass
+	:param command:     Command to execute
+	:param debug:       Dump debug to stdout
 	"""
+	# print 'STACK:'
+	# for line in traceback.format_stack():
+	#    print line.strip()
+
 	# Prepend the full lvm executable so that we can run different versions
 	# in different locations on the same box
 	command.insert(0, cfg.LVM_CMD)
@@ -123,58 +99,15 @@ def call_lvm(command, debug=False, line_cb=None,

 	process = Popen(command, stdout=PIPE, stderr=PIPE, close_fds=True,
 					env=os.environ)
+	out = process.communicate()

-	stdout_text = ""
-	stderr_text = ""
-	stdout_index = 0
-	make_non_block(process.stdout)
-	make_non_block(process.stderr)
+	stdout_text = bytes(out[0]).decode("utf-8")
+	stderr_text = bytes(out[1]).decode("utf-8")

-	while True and cfg.run.value != 0:
-		try:
-			rd_fd = [process.stdout.fileno(), process.stderr.fileno()]
-			ready = select.select(rd_fd, [], [], 2)
-
-			for r in ready[0]:
-				if r == process.stdout.fileno():
-					stdout_text += read_decoded(process.stdout)
-				elif r == process.stderr.fileno():
-					stderr_text += read_decoded(process.stderr)
-
-			if line_cb is not None:
-				# Process the callback for each line read!
-				while True:
-					i = stdout_text.find("\n", stdout_index)
-					if i != -1:
-						try:
-							line_cb(cb_data, stdout_text[stdout_index:i])
-						except BaseException as be:
-							st = extract_stack_trace(be)
-							log_error("call_lvm: line_cb exception: \n %s" % st)
-						stdout_index = i + 1
-					else:
-						break
-
-			# Check to see if process has terminated, None when running
-			if process.poll() is not None:
-				break
-		except IOError as ioe:
-			log_debug("call_lvm:" + str(ioe))
-			break
-
-	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))
-
-		return process.returncode, stdout_text, 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
@@ -189,11 +122,11 @@ 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


@@ -224,15 +157,11 @@ 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


@@ -242,11 +171,44 @@ 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()):
@@ -436,14 +398,6 @@ def vg_create_vdo_pool_lv_and_lv(vg_name, pool_name, lv_name, data_size,
 	return call(cmd)


-def vg_create_vdo_pool(pool_full_name, lv_name, virtual_size, create_options):
-	cmd = ['lvconvert']
-	cmd.extend(options_to_cli_args(create_options))
-	cmd.extend(['--type', 'vdo-pool', '-n', lv_name, '--force', '-y',
-				'-V', '%dB' % virtual_size, pool_full_name])
-	return call(cmd)
-
-
 def lv_remove(lv_path, remove_options):
 	cmd = ['lvremove']
 	cmd.extend(options_to_cli_args(remove_options))
@@ -491,15 +445,6 @@ def lv_cache_lv(cache_pool_full_name, lv_full_name, cache_options):
 	return call(cmd)


-def lv_writecache_lv(cache_lv_full_name, lv_full_name, cache_options):
-	# lvconvert --type writecache --cachevol VG/CacheLV VG/OriginLV
-	cmd = ['lvconvert']
-	cmd.extend(options_to_cli_args(cache_options))
-	cmd.extend(['-y', '--type', 'writecache', '--cachevol',
-				cache_lv_full_name, lv_full_name])
-	return call(cmd)
-
-
 def lv_detach_cache(lv_full_name, detach_options, destroy_cache):
 	cmd = ['lvconvert']
 	if destroy_cache:
@@ -515,28 +460,6 @@ def lv_detach_cache(lv_full_name, detach_options, destroy_cache):
 	return call(cmd)


-def lv_vdo_compression(lv_path, enable, comp_options):
-	cmd = ['lvchange', '--compression']
-	if enable:
-		cmd.append('y')
-	else:
-		cmd.append('n')
-	cmd.extend(options_to_cli_args(comp_options))
-	cmd.append(lv_path)
-	return call(cmd)
-
-
-def lv_vdo_deduplication(lv_path, enable, dedup_options):
-	cmd = ['lvchange', '--deduplication']
-	if enable:
-		cmd.append('y')
-	else:
-		cmd.append('n')
-	cmd.extend(options_to_cli_args(dedup_options))
-	cmd.append(lv_path)
-	return call(cmd)
-
-
 def supports_json():
 	cmd = ['help']
 	rc, out, err = call(cmd)
@@ -608,32 +531,62 @@ 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.
-	fn = cfg.lvmdebug.setup()
-	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 the 'call' implementation is lvmshell, the out is a dictionary as lvmshell has to
-		# parse the output to get the exit value.  When doing fork & exec, out is a string
-		# representing the JSON.  TODO: Make this consistent between implementations.
+		# 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 LvmBug("'fullreport' returned invalid JSON")
+			return json.loads(out)
+	return None

-	raise LvmBug("'fullreport' exited with code '%d'" % rc)
+
+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):
@@ -790,6 +743,53 @@ 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
@@ -6,44 +6,36 @@
 #
 # 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):
 	num_total_changes = 0
-	to_remove = []

-	(changes, remove) = load_pvs(
+	num_total_changes += load_pvs(
 		refresh=refresh,
 		emit_signal=emit_signal,
-		cache_refresh=False)[1:]
-	num_total_changes += changes
-	to_remove.extend(remove)
-
-	(changes, remove) = load_vgs(
+		cache_refresh=False)[1]
+	num_total_changes += load_vgs(
 		refresh=refresh,
 		emit_signal=emit_signal,
-		cache_refresh=False)[1:]
+		cache_refresh=False)[1]

-	num_total_changes += changes
-	to_remove.extend(remove)
-
-	(lv_changes, remove) = load_lvs(
+	lv_changes = load_lvs(
 		refresh=refresh,
 		emit_signal=emit_signal,
-		cache_refresh=False)[1:]
+		cache_refresh=False)[1]

 	num_total_changes += lv_changes
-	to_remove.extend(remove)

 	# When the LVs change it can cause another change in the VGs which is
 	# missed if we don't scan through the VGs again.  We could achieve this
@@ -52,23 +44,10 @@ def _main_thread_load(refresh=True, emit_signal=True):
 	# changes causing the dbus object representing it to be removed and
 	# recreated.
 	if refresh and lv_changes > 0:
-		(changes, remove) = load_vgs(
+		num_total_changes += load_vgs(
 			refresh=refresh,
 			emit_signal=emit_signal,
-			cache_refresh=False)[1:]
-
-	num_total_changes += changes
-	to_remove.extend(remove)
-
-	# Remove any objects that are no longer needed.  We do this after we process
-	# all the objects to ensure that references still exist for objects that
-	# are processed after them.
-	to_remove.reverse()
-	for i in to_remove:
-		dbus_obj = cfg.om.get_object_by_path(i)
-		if dbus_obj:
-			cfg.om.remove_object(dbus_obj, True)
-			num_total_changes += 1
+			cache_refresh=False)[1]

 	return num_total_changes

@@ -120,108 +99,81 @@ 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 2 seconds we will
-					# get a queue.Empty exception raised here
-					queued_requests.append(obj.queue.get(block=True, timeout=2))
+					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()
--- a/daemons/lvmdbusd/job.py
+++ b/daemons/lvmdbusd/job.py
@@ -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
@@ -75,10 +75,11 @@ def common(retrieve, o_type, search_keys,

 		object_path = None

-	to_remove = []
 	if refresh:
-		to_remove = list(existing_paths.keys())
+		for k in list(existing_paths.keys()):
+			cfg.om.remove_object(cfg.om.get_object_by_path(k), True)
+			num_changes += 1

 	num_changes += len(rc)

-	return rc, num_changes, to_remove
+	return rc, num_changes
--- 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
@@ -21,9 +21,11 @@ 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 least dependencies
 # first.  This may be error prone because of the flexibility LVM
@@ -71,74 +73,67 @@ def lvs_state_retrieve(selection, cache_refresh=True):
 	# don't have information available yet.
 	lvs = sorted(cfg.db.fetch_lvs(selection), key=get_key)

-	try:
-		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)")

@@ -393,7 +388,7 @@ class LvCommon(AutomatedProperties):
 					'l': 'mirror log device', 'c': 'under conversion',
 					'V': 'thin Volume', 't': 'thin pool', 'T': 'Thin pool data',
 					'e': 'raid or pool metadata or pool metadata spare',
-					'd': 'vdo pool', 'D': 'vdo pool data', 'g': 'integrity',
+					'd': 'vdo pool', 'D': 'vdo pool data',
 					'-': 'Unspecified'}
 		return self.attr_struct(0, type_map)

@@ -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(
@@ -748,54 +743,6 @@ class Lv(LvCommon):
 			cb, cbe, return_tuple=False)
 		cfg.worker_q.put(r)

-	@staticmethod
-	def _caching_common(method, 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)
-
-		# 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 = method(
-				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
-
-	@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}',
-		out_signature='(oo)',
-		async_callbacks=('cb', 'cbe'))
-	def WriteCacheLv(self, lv_object, tmo, cache_options, cb, cbe):
-		r = RequestEntry(
-			tmo, Lv._writecache_lv,
-			(self.Uuid, self.lvm_id, lv_object,
-			cache_options), cb, cbe)
-		cfg.worker_q.put(r)
-
-
 # noinspection PyPep8Naming
@utils.dbus_property(VDO_POOL_INTERFACE, 'OperatingMode', 's')
@utils.dbus_property(VDO_POOL_INTERFACE, 'CompressionState', 's')
@@ -833,72 +780,6 @@ class LvVdoPool(Lv):
 	def DataLv(self):
 		return dbus.ObjectPath(self._data_lv)

-	@staticmethod
-	def _enable_disable_compression(pool_uuid, pool_name, enable, comp_options):
-		# Make sure we have a dbus object representing it
-		LvCommon.validate_dbus_object(pool_uuid, pool_name)
-		# Rename the logical volume
-		LvCommon.handle_execute(*cmdhandler.lv_vdo_compression(
-			pool_name, enable, comp_options))
-		return '/'
-
-	@dbus.service.method(
-		dbus_interface=VDO_POOL_INTERFACE,
-		in_signature='ia{sv}',
-		out_signature='o',
-		async_callbacks=('cb', 'cbe'))
-	def EnableCompression(self, tmo, comp_options, cb, cbe):
-		r = RequestEntry(
-			tmo, LvVdoPool._enable_disable_compression,
-			(self.Uuid, self.lvm_id, True, comp_options),
-			cb, cbe, False)
-		cfg.worker_q.put(r)
-
-	@dbus.service.method(
-		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,
-			(self.Uuid, self.lvm_id, False, comp_options),
-			cb, cbe, False)
-		cfg.worker_q.put(r)
-
-	@staticmethod
-	def _enable_disable_deduplication(pool_uuid, pool_name, enable, dedup_options):
-		# Make sure we have a dbus object representing it
-		LvCommon.validate_dbus_object(pool_uuid, pool_name)
-		# Rename the logical volume
-		LvCommon.handle_execute(*cmdhandler.lv_vdo_deduplication(
-			pool_name, enable, dedup_options))
-		return '/'
-
-	@dbus.service.method(
-		dbus_interface=VDO_POOL_INTERFACE,
-		in_signature='ia{sv}',
-		out_signature='o',
-		async_callbacks=('cb', 'cbe'))
-	def EnableDeduplication(self, tmo, dedup_options, cb, cbe):
-		r = RequestEntry(
-			tmo, LvVdoPool._enable_disable_deduplication,
-			(self.Uuid, self.lvm_id, True, dedup_options),
-			cb, cbe, False)
-		cfg.worker_q.put(r)
-
-	@dbus.service.method(
-		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,
-			(self.Uuid, self.lvm_id, False, dedup_options),
-			cb, cbe, False)
-		cfg.worker_q.put(r)
-

 # noinspection PyPep8Naming
 class LvThinPool(Lv):
@@ -962,8 +843,33 @@ 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
@@ -13,12 +13,14 @@

 import subprocess
 import shlex
+from fcntl import fcntl, F_GETFL, F_SETFL
 import os
-import pty
+import traceback
 import sys
 import tempfile
 import time
 import select
+import copy

 try:
 	import simplejson as json
@@ -26,9 +28,8 @@ except ImportError:
 	import json


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

 SHELL_PROMPT = "lvm> "

@@ -42,11 +43,17 @@ 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):
+	@staticmethod
+	def _read(stream):
+		tmp = stream.read()
+		if tmp:
+			return tmp.decode("utf-8")
+		return ''
+
+	# 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 = ""
@@ -58,27 +65,24 @@ 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 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]
+					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 += LVMShellProxy._read(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
+						report += LVMShellProxy._read(self.report_stream)
+					elif r == self.lvm_shell.stderr.fileno():
+						stderr += LVMShellProxy._read(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):
@@ -102,100 +106,83 @@ 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 IOError as ioe:
 				log_debug(str(ioe))
-				self.exit_shell()
-				raise ioe
-
-		if keep_reading and 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
+				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()
+
+	@staticmethod
+	def _make_non_block(stream):
+		flags = fcntl(stream, F_GETFL)
+		fcntl(stream, F_SETFL, flags | os.O_NONBLOCK)

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

-		# Create a fifo for the report output
-		os.mkfifo(tmp_file, 0o600)
+		try:
+			# Lets create fifo for the report output
+			os.mkfifo(tmp_file, 0o600)
+		except FileExistsError:
+			pass

-		# 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 "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(
-			[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)
+			LVMShellProxy._make_non_block(self.lvm_shell.stdout)
+			LVMShellProxy._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):
+	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 LVMShellProxy.get_error_msg(report_json)

-	@staticmethod
-	def get_error_msg(report_json):
-		# Get the error message from the returned 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
@@ -208,7 +195,7 @@ class LVMShellProxy(object):

 			return error_msg

-		return None
+		return 'No error reason provided! (missing "log" section)'

 	def call_lvm(self, argv, debug=False):
 		rc = 1
@@ -229,29 +216,21 @@ class LVMShellProxy(object):
 		self._write_cmd(cmd)

 		# read everything from the STDOUT to the next prompt
-		stdout, report_json, stderr = self._read_response()
+		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 = LVMShellProxy.get_error_msg(report_json)
-					if error_msg is None:
-						error_msg = 'No error reason provided! (missing "log" section)'
+				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
@@ -270,37 +249,24 @@ class LVMShellProxy(object):


 if __name__ == "__main__":
-	print("USING LVM BINARY: %s " % 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")
@@ -436,7 +527,13 @@ class DataStore(object):
 if __name__ == "__main__":
 	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


@@ -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(
@@ -79,12 +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)
 	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',
@@ -105,140 +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()
-
-	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('Utilizing udev to trigger updates')
-
-	return args
-
-
-def running_under_systemd():
-	""""
-	Checks to see if we are running under systemd, by checking damon 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('LVMDBUSD_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"
-
-	# Save off the debug data needed for lvm team to debug issues
-	# only used for 'fullreport' at this time.
-	cfg.lvmdebug = utils.LvmDebugData()
-
-	# 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.damon = 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
@@ -27,7 +27,7 @@ class Manager(AutomatedProperties):

 	@property
 	def Version(self):
-		return dbus.String('1.1.0')
+		return dbus.String('1.0.0')

 	@staticmethod
 	def handle_execute(rc, out, err):
@@ -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(
@@ -206,9 +204,11 @@ class Manager(AutomatedProperties):
 		# 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_msg("ExternalEvent received, disabling "
+				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, pv_obj_path_generate, 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}}')
@@ -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
@@ -298,7 +308,7 @@ class ObjectManager(AutomatedProperties):
 				# 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 likely not unique
 				# and thus not useful and potentially harmful for lookups.
@@ -327,3 +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):
--- a/daemons/lvmdbusd/udevwatch.py
+++ b/daemons/lvmdbusd/udevwatch.py
@@ -52,8 +52,8 @@ def filter_event(action, device):
 	# when appropriate.
 	refresh = False

-	if 'ID_FS_TYPE' in device:
-		fs_type_new = device['ID_FS_TYPE']
+	if '.ID_FS_TYPE_NEW' in device:
+		fs_type_new = device['.ID_FS_TYPE_NEW']

 		if 'LVM' in fs_type_new:
 			refresh = True
--- a/daemons/lvmdbusd/utils.py
+++ b/daemons/lvmdbusd/utils.py
@@ -10,15 +10,10 @@
 import xml.etree.ElementTree as Et
 import sys
 import inspect
-import collections
 import ctypes
-import errno
-import fcntl
 import os
-import stat
 import string
 import datetime
-import tempfile

 import dbus
 from lvmdbusd import cfg
@@ -284,47 +279,17 @@ def parse_tags(tags):
 	return dbus.Array([], signature='s')


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

-	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):
-	cfg.stdout_lock.acquire()
-	msg = _format_log_entry(msg)
+		msg = "%d:%d - %s" % (os.getpid(), tid, msg)

 	if STDOUT_TTY and attributes:
 		print(color(msg, *attributes))
@@ -341,19 +306,12 @@ 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 = {}

@@ -381,21 +339,15 @@ 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:
 			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
@@ -619,23 +571,6 @@ 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
@@ -647,18 +582,27 @@ 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!


@@ -672,8 +616,9 @@ 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
@@ -723,6 +668,9 @@ 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):
@@ -733,118 +681,3 @@ def _remove_objects(dbus_objects_rm):
 # Remove dbus objects from main thread
 def mt_remove_dbus_objects(objs):
 	MThreadRunner(_remove_objects, objs).done()
-
-
-# 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)
-
-
-def read_decoded(stream):
-	tmp = stream.read()
-	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:
-			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):
-		self.fd = -1
-		self.fn = None
-
-	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
-		self.fd, self.fn = tempfile.mkstemp(suffix=".log", prefix="lvmdbusd.lvm.debug.")
-		return self.fn
-
-	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()
--- 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


@@ -820,35 +813,3 @@ class VgVdo(Vg):
 							round_size(virtual_size),
 							create_options), cb, cbe)
 		cfg.worker_q.put(r)
-
-	@staticmethod
-	def _vdo_pool_create(uuid, vg_name, pool_lv, name, virtual_size, create_options):
-		Vg.validate_dbus_object(uuid, vg_name)
-
-		# Retrieve the full name of the pool lv
-		pool = cfg.om.get_object_by_path(pool_lv)
-		if not pool:
-			msg = 'LV with object path %s not present!' % \
-					(pool_lv)
-			raise dbus.exceptions.DBusException(VG_VDO_INTERFACE, msg)
-
-		Vg.handle_execute(*cmdhandler.vg_create_vdo_pool(
-			pool.lv_full_name(), name, virtual_size,
-			create_options))
-		return Vg.fetch_new_lv(vg_name, pool.Name)
-
-	@dbus.service.method(
-		dbus_interface=VG_VDO_INTERFACE,
-		in_signature='ostia{sv}',
-		out_signature='(oo)',
-		async_callbacks=('cb', 'cbe'))
-	def CreateVdoPool(self, pool_lv, name, virtual_size,
-						tmo, create_options, cb, cbe):
-		utils.validate_lv_name(VG_VDO_INTERFACE, self.Name, name)
-
-		r = RequestEntry(tmo, VgVdo._vdo_pool_create,
-							(self.state.Uuid, self.state.lvm_id,
-							pool_lv, name,
-							round_size(virtual_size),
-							create_options), cb, cbe)
-		cfg.worker_q.put(r)
--- a/daemons/lvmlockd/Makefile.in
+++ b/daemons/lvmlockd/Makefile.in
@@ -30,39 +30,33 @@ ifeq ("@BUILD_LOCKDDLM@", "yes")
  LOCK_LIBS += -ldlmcontrol
 endif

-ifeq ("@BUILD_LOCKDIDM@", "yes")
-  SOURCES += lvmlockd-idm.c
-  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
+.PHONY: install_lvmlockd

 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)
+LIBS += $(RT_LIBS) $(DAEMON_LIBS) $(PTHREAD_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)
+lvmlockd: $(OBJECTS) $(top_builddir)/libdaemon/client/libdaemonclient.a \
+		    $(top_builddir)/libdaemon/server/libdaemonserver.a
 	@echo "    [CC] $@"
-	$(Q) $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $+ $(LOCK_LIBS) $(LIBS)
+	$(Q) $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $(OBJECTS) $(LOCK_LIBS) -ldaemonserver $(INTERNAL_LIBS) $(LIBS)

-lvmlockctl: lvmlockctl.o $(INTERNAL_LIBS)
+lvmlockctl: lvmlockctl.o $(top_builddir)/libdaemon/client/libdaemonclient.a
 	@echo "    [CC] $@"
-	$(Q) $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $+ $(LIBS)
+	$(Q) $(CC) $(CFLAGS) $(LDFLAGS) -o $@ lvmlockctl.o $(INTERNAL_LIBS) $(LIBS)

 install_lvmlockd: lvmlockd
 	@echo "    [INSTALL] $<"
--- a/daemons/lvmlockd/lvmlockctl.c
+++ b/daemons/lvmlockd/lvmlockctl.c
@@ -18,11 +18,8 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <syslog.h>
-#include <ctype.h>
 #include <sys/socket.h>
 #include <sys/un.h>
-#include <unistd.h>
-#include <sys/wait.h>

 static int quit = 0;
 static int info = 0;
@@ -33,7 +30,6 @@ static int kill_vg = 0;
 static int drop_vg = 0;
 static int gl_enable = 0;
 static int gl_disable = 0;
-static int use_stderr = 0;
 static int stop_lockspaces = 0;
 static char *arg_vg_name = NULL;

@@ -51,22 +47,6 @@ do { \
 	printf(fmt "\n", ##args); \
 } while (0)

-#define log_sys_emerg(fmt, args...) \
-do { \
-	if (use_stderr) \
-		fprintf(stderr, fmt "\n", ##args); \
-	else \
-		syslog(LOG_EMERG, fmt, ##args); \
-} while (0)
-
-#define log_sys_warn(fmt, args...) \
-do { \
-	if (use_stderr) \
-		fprintf(stderr, fmt "\n", ##args); \
-	else \
-		syslog(LOG_WARNING, fmt, ##args); \
-} while (0)
-
 #define MAX_LINE 512

 /* copied from lvmlockd-internal.h */
@@ -300,12 +280,13 @@ static void format_info_line(char *line, char *r_name, char *r_type)

 static void format_info(void)
 {
-	char line[MAX_LINE] = { 0 };
-	char r_name[MAX_NAME+1] = { 0 };
-	char r_type[MAX_NAME+1] = { 0 };
+	char line[MAX_LINE];
+	char r_name[MAX_NAME+1];
+	char r_type[MAX_NAME+1];
 	int i, j;

 	j = 0;
+	memset(line, 0, sizeof(line));

 	for (i = 0; i < dump_len; i++) {
 		line[j++] = dump_buf[i];
@@ -345,8 +326,6 @@ static int _lvmlockd_result(daemon_reply reply, int *result)
 {
 	int reply_result;

-	*result = NO_LOCKD_RESULT;
-
 	if (reply.error) {
 		log_error("lvmlockd_result reply error %d", reply.error);
 		return 0;
@@ -358,7 +337,7 @@ static int _lvmlockd_result(daemon_reply reply, int *result)
 	}

 	reply_result = daemon_reply_int(reply, "op_result", NO_LOCKD_RESULT);
-	if (reply_result == NO_LOCKD_RESULT) {
+	if (reply_result == -1000) {
 		log_error("lvmlockd_result no op_result");
 		return 0;
 	}
@@ -457,7 +436,6 @@ retry:
 	if (count < dump_len)
 		goto retry;

-	dump_buf[count] = 0;
 	rv = 0;
 	if ((info && dump) || !strcmp(req_name, "dump"))
 		printf("%s\n", dump_buf);
@@ -523,274 +501,51 @@ static int do_stop_lockspaces(void)
 	return rv;
 }

-static int _reopen_fd_to_null(int fd)
+static int do_kill(void)
 {
-	int null_fd;
-	int r = 0;
-
-	if ((null_fd = open("/dev/null", O_RDWR)) == -1) {
-		log_error("open error /dev/null %d", errno);
-		return 0;
-	}
-
-	if (close(fd)) {
-		log_error("close error fd %d %d", fd, errno);
-		goto out;
-	}
-
-	if (dup2(null_fd, fd) == -1) {
-		log_error("dup2 error %d", errno);
-		goto out;
-	}
-
-	r = 1;
-out:
-	if (close(null_fd)) {
-		log_error("close error fd %d %d", null_fd, errno);
-		return 0;
-	}
-
-	return r;
-}
-
-#define MAX_AV_COUNT 32
-#define ONE_ARG_LEN 1024
-
-static void _run_command_pipe(const char *cmd_str, pid_t *pid_out, FILE **fp_out)
-{
-	char arg[ONE_ARG_LEN];
-	char *av[MAX_AV_COUNT + 1]; /* +1 for NULL */
-	char *arg_dup;
-	int av_count = 0;
-	int cmd_len;
-	int arg_len;
-	pid_t pid = 0;
-	FILE *fp = NULL;
-	int pipefd[2];
-	int i;
-
-	for (i = 0; i < MAX_AV_COUNT + 1; i++)
-		av[i] = NULL;
-
-	cmd_len = strlen(cmd_str);
-
-	memset(&arg, 0, sizeof(arg));
-	arg_len = 0;
-
-	for (i = 0; i < cmd_len; i++) {
-		if (!cmd_str[i])
-			break;
-
-		if (av_count == MAX_AV_COUNT)
-			goto out;
-
-		if (cmd_str[i] == '\\') {
-			if (i == (cmd_len - 1))
-				break;
-			i++;
-
-			if (cmd_str[i] == '\\') {
-				arg[arg_len++] = cmd_str[i];
-				continue;
-			}
-			if (isspace(cmd_str[i])) {
-				arg[arg_len++] = cmd_str[i];
-				continue;
-			} else {
-				break;
-			}
-		}
-
-		if (isalnum(cmd_str[i]) || ispunct(cmd_str[i])) {
-			arg[arg_len++] = cmd_str[i];
-		} else if (isspace(cmd_str[i])) {
-			if (arg_len) {
-				if (!(arg_dup = strdup(arg)))
-					goto out;
-				av[av_count++] = arg_dup;
-			}
-
-			memset(arg, 0, sizeof(arg));
-			arg_len = 0;
-		} else {
-			break;
-		}
-	}
-
-	if (arg_len) {
-		if (av_count >= MAX_AV_COUNT)
-			goto out;
-		if (!(arg_dup = strdup(arg)))
-			goto out;
-		av[av_count++] = arg_dup;
-	}
-
-	if (pipe(pipefd)) {
-		log_error("pipe error %d", errno);
-		goto out;
-	}
-
-	pid = fork();
-
-	if (pid < 0) {
-		log_error("fork error %d", errno);
-		pid = 0;
-		goto out;
-	}
-
-	if (pid == 0) {
-		/* Child -> writer, convert pipe[0] to STDOUT */
-		if (!_reopen_fd_to_null(STDIN_FILENO))
-			log_error("reopen STDIN error");
-		else if (close(pipefd[0 /*read*/]))
-			log_error("close error pipe[0] %d", errno);
-		else if (close(STDOUT_FILENO))
-			log_error("close error STDOUT %d", errno);
-		else if (dup2(pipefd[1 /*write*/], STDOUT_FILENO) == -1)
-			log_error("dup2 error STDOUT %d", errno);
-		else if (close(pipefd[1]))
-			log_error("close error pipe[1] %d", errno);
-		else {
-			execvp(av[0], av);
-			log_error("execvp error %d", errno);
-		}
-		_exit(errno);
-	}
-
-	/* Parent -> reader */
-	if (close(pipefd[1 /*write*/]))
-		log_error("close error STDOUT %d", errno);
-
-	if (!(fp = fdopen(pipefd[0 /*read*/],  "r"))) {
-		log_error("fdopen STDIN error %d", errno);
-		if (close(pipefd[0]))
-			log_error("close error STDIN %d", errno);
-	}
-
- out:
-	for (i = 0; i < MAX_AV_COUNT + 1; i++)
-		free(av[i]);
-
-	*pid_out = pid;
-	*fp_out = fp;
-}
-
-/* Returns -1 on error, 0 on success. */
-
-static int _close_command_pipe(pid_t pid, FILE *fp)
-{
-	int status, estatus;
-	int ret = -1;
-
-	if (waitpid(pid, &status, 0) != pid) {
-		log_error("waitpid error pid %d %d", pid, errno);
-		goto out;
-	}
-
-	if (WIFEXITED(status)) {
-		/* pid exited with an exit code */
-		estatus = WEXITSTATUS(status);
-
-		/* exit status 0: child success */
-		if (!estatus) {
-			ret = 0;
-			goto out;
-		}
-
-		/* exit status not zero: child error */
-		log_error("child exit error %d", estatus);
-		goto out;
-	}
-
-	if (WIFSIGNALED(status)) {
-		/* pid terminated due to a signal */
-		log_error("child exit from signal");
-		goto out;
-	}
-
-	log_error("child exit problem");
-
-out:
-	if (fp && fclose(fp))
-		log_error("fclose error STDIN %d", errno);
-	return ret;
-}
-
-/* Returns -1 on error, 0 on success. */
-
-static int _get_kill_command(char *kill_cmd)
-{
-	char config_cmd[PATH_MAX + 128] = { 0 };
-	char config_val[1024] = { 0 };
-	char line[PATH_MAX] = { 0 };
-	pid_t pid = 0;
-	FILE *fp = NULL;
-
-	snprintf(config_cmd, PATH_MAX, "%s config --typeconfig full global/lvmlockctl_kill_command", LVM_PATH);
-
-	_run_command_pipe(config_cmd, &pid, &fp);
-
-	if (!pid) {
-		log_error("failed to run %s", config_cmd);
-		return -1;
-	}
-
-	if (!fp) {
-		log_error("failed to get output %s", config_cmd);
-		_close_command_pipe(pid, fp);
-		return -1;
-	}
-
-	if (!fgets(line, sizeof(line), fp)) {
-		log_error("no output from %s", config_cmd);
-		goto bad;
-	}
-
-	if (sscanf(line, "lvmlockctl_kill_command=\"%256[^\n\"]\"", config_val) != 1) {
-		log_error("unrecognized config value from %s", config_cmd);
-		goto bad;
-	}
-
-	if (!config_val[0] || (config_val[0] == ' ')) {
-		log_error("invalid config value from %s", config_cmd);
-		goto bad;
-	}
-
-	if (config_val[0] != '/') {
-		log_error("lvmlockctl_kill_command must be full path");
-		goto bad;
-	}
-
-	printf("Found lvmlockctl_kill_command: %s\n", config_val);
-
-	snprintf(kill_cmd, PATH_MAX, "%s %s", config_val, arg_vg_name);
-	kill_cmd[PATH_MAX-1] = '\0';
-
-	_close_command_pipe(pid, fp);
-	return 0;
-bad:
-	_close_command_pipe(pid, fp);
-	return -1;
-}
-
-/* Returns -1 on error, 0 on success. */
-
-static int _run_kill_command(char *kill_cmd)
-{
-	pid_t pid = 0;
-	FILE *fp = NULL;
+	daemon_reply reply;
+	int result;
 	int rv;

-	_run_command_pipe(kill_cmd, &pid, &fp);
-	rv = _close_command_pipe(pid, fp);
+	syslog(LOG_EMERG, "Lost access to sanlock lease storage in VG %s.", arg_vg_name);
+	/* These two lines explain the manual alternative to the FIXME below. */
+	syslog(LOG_EMERG, "Immediately deactivate LVs in VG %s.", arg_vg_name);
+	syslog(LOG_EMERG, "Once VG is unused, run lvmlockctl --drop %s.", arg_vg_name);

-	if (!pid)
-		return -1;
+	/*
+	 * It may not be strictly necessary to notify lvmlockd of the kill, but
+	 * lvmlockd can use this information to avoid attempting any new lock
+	 * requests in the VG (which would fail anyway), and can return an
+	 * error indicating that the VG has been killed.
+	 */

-	if (rv < 0)
-		return -1;
+	reply = _lvmlockd_send("kill_vg",
+				"cmd = %s", "lvmlockctl",
+				"pid = " FMTd64, (int64_t) getpid(),
+				"vg_name = %s", arg_vg_name,
+				NULL);

-	return 0;
+	if (!_lvmlockd_result(reply, &result)) {
+		log_error("lvmlockd result %d", result);
+		rv = result;
+	} else {
+		rv = 0;
+	}
+
+	daemon_reply_destroy(reply);
+
+	/*
+	 * FIXME: here is where we should implement a strong form of
+	 * blkdeactivate, and if it completes successfully, automatically call
+	 * do_drop() afterward.  (The drop step may not always be necessary
+	 * if the lvm commands run while shutting things down release all the
+	 * leases.)
+	 *
+	 * run_strong_blkdeactivate();
+	 * do_drop();
+	 */
+
+	return rv;
 }

 static int do_drop(void)
@@ -799,7 +554,7 @@ static int do_drop(void)
 	int result;
 	int rv;

-	log_sys_warn("Dropping locks for VG %s.", arg_vg_name);
+	syslog(LOG_WARNING, "Dropping locks for VG %s.", arg_vg_name);

 	/*
 	 * Check for misuse by looking for any active LVs in the VG
@@ -827,84 +582,6 @@ static int do_drop(void)
 	return rv;
 }

-static int do_kill(void)
-{
-	char kill_cmd[PATH_MAX] = { 0 };
-	daemon_reply reply;
-	int no_kill_command = 0;
-	int result;
-	int rv;
-
-	log_sys_emerg("lvmlockd lost access to locks in VG %s.", arg_vg_name);
-
-	rv = _get_kill_command(kill_cmd);
-	if (rv < 0) {
-		log_sys_emerg("Immediately deactivate LVs in VG %s.", arg_vg_name);
-		log_sys_emerg("Once VG is unused, run lvmlockctl --drop %s.", arg_vg_name);
-		no_kill_command = 1;
-	}
-
-	/*
-	 * It may not be strictly necessary to notify lvmlockd of the kill, but
-	 * lvmlockd can use this information to avoid attempting any new lock
-	 * requests in the VG (which would fail anyway), and can return an
-	 * error indicating that the VG has been killed.
-	 */
-	_lvmlockd = lvmlockd_open(NULL);
-	if (_lvmlockd.socket_fd < 0 || _lvmlockd.error) {
-		log_error("Cannot connect to lvmlockd for kill_vg.");
-		goto run;
-	}
-	reply = _lvmlockd_send("kill_vg",
-				"cmd = %s", "lvmlockctl",
-				"pid = " FMTd64, (int64_t) getpid(),
-				"vg_name = %s", arg_vg_name,
-				NULL);
-	if (!_lvmlockd_result(reply, &result))
-		log_error("lvmlockd result %d kill_vg", result);
-	daemon_reply_destroy(reply);
-	lvmlockd_close(_lvmlockd);
-
- run:
-	if (no_kill_command)
-		return 0;
-
-	rv = _run_kill_command(kill_cmd);
-	if (rv < 0) {
-		log_sys_emerg("Failed to run VG %s kill command %s", arg_vg_name, kill_cmd);
-		log_sys_emerg("Immediately deactivate LVs in VG %s.", arg_vg_name);
-		log_sys_emerg("Once VG is unused, run lvmlockctl --drop %s.", arg_vg_name);
-		return -1;
-	}
-
-	log_sys_warn("Successful VG %s kill command %s", arg_vg_name, kill_cmd);
-
-	/*
-	 * If kill command was successfully, call do_drop().  (The drop step
-	 * may not always be necessary if the lvm commands run while shutting
-	 * things down release all the leases.)
-	 */
-	rv = 0;
-	_lvmlockd = lvmlockd_open(NULL);
-	if (_lvmlockd.socket_fd < 0 || _lvmlockd.error) {
-		log_sys_emerg("Failed to connect to lvmlockd to drop locks in VG %s.", arg_vg_name);
-		return -1;
-	}
-	reply = _lvmlockd_send("drop_vg",
-				"cmd = %s", "lvmlockctl",
-				"pid = " FMTd64, (int64_t) getpid(),
-				"vg_name = %s", arg_vg_name,
-				NULL);
-	if (!_lvmlockd_result(reply, &result)) {
-		log_sys_emerg("Failed to drop locks in VG %s", arg_vg_name);
-		rv = result;
-	}
-	daemon_reply_destroy(reply);
-	lvmlockd_close(_lvmlockd);
-
-	return rv;
-}
-
 static void print_usage(void)
 {
 	printf("lvmlockctl options\n");
@@ -922,7 +599,7 @@ static void print_usage(void)
 	printf("--force | -f 0|1>\n");
 	printf("      Force option for other commands.\n");
 	printf("--kill | -k <vgname>\n");
-	printf("      Kill access to the VG locks are lost (see lvmlockctl_kill_command).\n");
+	printf("      Kill access to the VG when sanlock cannot renew lease.\n");
 	printf("--drop | -r <vgname>\n");
 	printf("      Clear locks for the VG when it is unused after kill (-k).\n");
 	printf("--gl-enable | -E <vgname>\n");
@@ -931,8 +608,6 @@ static void print_usage(void)
 	printf("      Tell lvmlockd to disable the global lock in a sanlock VG.\n");
 	printf("--stop-lockspaces | -S\n");
 	printf("      Stop all lockspaces.\n");
-	printf("--stderr | -e\n");
-	printf("      Send kill and drop messages to stderr instead of syslog\n");
 }

 static int read_options(int argc, char *argv[])
@@ -952,7 +627,6 @@ static int read_options(int argc, char *argv[])
 		{"gl-enable",       required_argument, 0,  'E' },
 		{"gl-disable",      required_argument, 0,  'D' },
 		{"stop-lockspaces", no_argument,       0,  'S' },
-		{"stderr",          no_argument,       0,  'e' },
 		{0, 0, 0, 0 }
 	};

@@ -962,7 +636,7 @@ 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:S", long_options, &option_index);
 		if (c == -1)
 			break;

@@ -988,30 +662,23 @@ static int read_options(int argc, char *argv[])
 			break;
 		case 'k':
 			kill_vg = 1;
-			free(arg_vg_name);
 			arg_vg_name = strdup(optarg);
 			break;
 		case 'r':
 			drop_vg = 1;
-			free(arg_vg_name);
 			arg_vg_name = strdup(optarg);
 			break;
 		case 'E':
 			gl_enable = 1;
-			free(arg_vg_name);
 			arg_vg_name = strdup(optarg);
 			break;
 		case 'D':
 			gl_disable = 1;
-			free(arg_vg_name);
 			arg_vg_name = strdup(optarg);
 			break;
 		case 'S':
 			stop_lockspaces = 1;
 			break;
-		case 'e':
-			use_stderr = 1;
-			break;
 		default:
 			print_usage();
 			exit(1);
@@ -1030,12 +697,8 @@ int main(int argc, char **argv)
 	if (rv < 0)
 		return rv;

-	/* do_kill handles lvmlockd connections itself */
-	if (kill_vg)
-		return do_kill();
-
-
 	_lvmlockd = lvmlockd_open(NULL);
+
 	if (_lvmlockd.socket_fd < 0 || _lvmlockd.error) {
 		log_error("Cannot connect to lvmlockd.");
 		return -1;
@@ -1056,6 +719,11 @@ int main(int argc, char **argv)
 		goto out;
 	}

+	if (kill_vg) {
+		rv = do_kill();
+		goto out;
+	}
+
 	if (drop_vg) {
 		rv = do_drop();
 		goto out;
--- a/daemons/lvmlockd/lvmlockd-client.h
+++ b/daemons/lvmlockd/lvmlockd-client.h
@@ -14,7 +14,6 @@
 #include "libdaemon/client/daemon-client.h"

 #define LVMLOCKD_SOCKET DEFAULT_RUN_DIR "/lvmlockd.socket"
-#define LVMLOCKD_ADOPT_FILE DEFAULT_RUN_DIR "/lvmlockd.adopt"

 /* Wrappers to open/close connection */

@@ -23,9 +22,9 @@ static inline daemon_handle lvmlockd_open(const char *sock)
 	daemon_info lvmlockd_info = {
 		.path = "lvmlockd",
 		.socket = sock ?: LVMLOCKD_SOCKET,
-		.autostart = 0,
 		.protocol = "lvmlockd",
 		.protocol_version = 1,
+		.autostart = 0
 	};

 	return daemon_open(lvmlockd_info);
@@ -33,7 +32,7 @@ static inline daemon_handle lvmlockd_open(const char *sock)

 static inline void lvmlockd_close(daemon_handle h)
 {
-	daemon_close(h);
+	return daemon_close(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
@@ -119,7 +119,6 @@ static int read_cluster_name(char *clustername)
 			log_error(close_error_msg, fd);
 		return rv;
 	}
-	clustername[rv] = 0;

 	n = strstr(clustername, "\n");
 	if (n)
@@ -328,7 +327,8 @@ int lm_rem_resource_dlm(struct lockspace *ls, struct resource *r)
 		log_error("S %s R %s rem_resource_dlm unlock error %d", ls->name, r->name, rv);
 	}
 out:
-	free(rdd->vb);
+	if (rdd->vb)
+		free(rdd->vb);

 	memset(rdd, 0, sizeof(struct rd_dlm));
 	r->lm_init = 0;
@@ -398,18 +398,12 @@ static int lm_adopt_dlm(struct lockspace *ls, struct resource *r, int ld_mode,
 			  (void *)1, (void *)1, (void *)1,
 			  NULL, NULL);

-	if (rv == -1 && (errno == EAGAIN)) {
+	if (rv == -1 && errno == -EAGAIN) {
 		log_debug("S %s R %s adopt_dlm adopt mode %d try other mode",
 			  ls->name, r->name, ld_mode);
 		rv = -EUCLEAN;
 		goto fail;
 	}
-	if (rv == -1 && (errno == ENOENT)) {
-		log_debug("S %s R %s adopt_dlm adopt mode %d no lock",
-			  ls->name, r->name, ld_mode);
-		rv = -ENOENT;
-		goto fail;
-	}
 	if (rv < 0) {
 		log_debug("S %s R %s adopt_dlm mode %d flags %x error %d errno %d",
 			  ls->name, r->name, mode, flags, rv, errno);
@@ -791,18 +785,17 @@ int lm_is_running_dlm(void)

 int lm_refresh_lv_start_dlm(struct action *act)
 {
-	char path[PATH_MAX] = { 0 };
+	char path[PATH_MAX];
 	char command[DLMC_RUN_COMMAND_LEN];
 	char run_uuid[DLMC_RUN_UUID_LEN];
 	char *p, *vgname, *lvname;
 	int rv;

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

 	/* skip past dev */
-	if (!(p = strchr(path + 1, '/')))
-		return -EINVAL;
+	p = strchr(path + 1, '/');

 	/* skip past slashes */
 	while (*p == '/')
--- a/daemons/lvmlockd/lvmlockd-idm.c
+++ b/daemons/lvmlockd/lvmlockd-idm.c
@@ -1,837 +0,0 @@
-/*
- * Copyright (C) 2020-2021 Seagate Ltd.
- *
- * This file is part of LVM2.
- *
- * 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.
- */
-
-#define _XOPEN_SOURCE 500  /* pthread */
-#define _ISOC99_SOURCE
-
-#include "tools/tool.h"
-
-#include "daemon-server.h"
-#include "lib/mm/xlate.h"
-
-#include "lvmlockd-internal.h"
-#include "daemons/lvmlockd/lvmlockd-client.h"
-
-#include "ilm.h"
-
-#include <blkid/blkid.h>
-#include <ctype.h>
-#include <dirent.h>
-#include <errno.h>
-#include <poll.h>
-#include <regex.h>
-#include <stddef.h>
-#include <syslog.h>
-#include <sys/sysmacros.h>
-#include <time.h>
-
-#define IDM_TIMEOUT	60000	/* unit: millisecond, 60 seconds */
-
-/*
- * Each lockspace thread has its own In-Drive Mutex (IDM) lock manager's
- * connection.  After established socket connection, the lockspace has
- * been created in IDM lock manager and afterwards use the socket file
- * descriptor to send any requests for lock related operations.
- */
-
-struct lm_idm {
-	int sock;	/* IDM lock manager connection */
-};
-
-struct rd_idm {
-	struct idm_lock_id id;
-	struct idm_lock_op op;
-	uint64_t vb_timestamp;
-	struct val_blk *vb;
-};
-
-int lm_data_size_idm(void)
-{
-	return sizeof(struct rd_idm);
-}
-
-static uint64_t read_utc_us(void)
-{
-	struct timespec cur_time;
-
-	clock_gettime(CLOCK_REALTIME, &cur_time);
-
-	/*
-	 * Convert to microseconds unit.  IDM reserves the MSB in 8 bytes
-	 * and the low 56 bits are used for timestamp; 56 bits can support
-	 * calendar year to 2284, so it has 260 years for overflow.  Thus it
-	 * is quite safe for overflow issue when wrote this code.
-	 */
-	return cur_time.tv_sec * 1000000 + cur_time.tv_nsec / 1000;
-}
-
-static int uuid_read_format(char *uuid_str, const char *buffer)
-{
-	int out = 0;
-
-	/* just strip out any dashes */
-	while (*buffer) {
-
-		if (*buffer == '-') {
-			buffer++;
-			continue;
-		}
-
-		if (out >= 32) {
-			log_error("Too many characters to be uuid.");
-			return -1;
-		}
-
-		uuid_str[out++] = *buffer;
-		buffer++;
-	}
-
-	if (out != 32) {
-		log_error("Couldn't read uuid: incorrect number of "
-			  "characters.");
-		return -1;
-	}
-
-	return 0;
-}
-
-#define SYSFS_ROOT		"/sys"
-#define BUS_SCSI_DEVS		"/bus/scsi/devices"
-
-static struct idm_lock_op glb_lock_op;
-
-static void lm_idm_free_dir_list(struct dirent **dir_list, int dir_num)
-{
-	int i;
-
-	for (i = 0; i < dir_num; ++i)
-		free(dir_list[i]);
-	free(dir_list);
-}
-
-static int lm_idm_scsi_directory_select(const struct dirent *s)
-{
-	regex_t regex;
-	int ret;
-
-	/* Only select directory with the format x:x:x:x */
-	ret = regcomp(&regex, "^[0-9]+:[0-9]+:[0-9]+:[0-9]+$", REG_EXTENDED);
-	if (ret)
-		return 0;
-
-	ret = regexec(&regex, s->d_name, 0, NULL, 0);
-	if (!ret) {
-		regfree(&regex);
-		return 1;
-	}
-
-	regfree(&regex);
-	return 0;
-}
-
-static int lm_idm_scsi_find_block_dirctory(const char *block_path)
-{
-	struct stat stats;
-
-	if ((stat(block_path, &stats) >= 0) && S_ISDIR(stats.st_mode))
-		return 0;
-
-	return -1;
-}
-
-static int lm_idm_scsi_block_node_select(const struct dirent *s)
-{
-	if (DT_LNK != s->d_type && DT_DIR != s->d_type)
-		return 0;
-
-	if (DT_DIR == s->d_type) {
-		/* Skip this directory: '.' and parent: '..' */
-		if (!strcmp(s->d_name, ".") || !strcmp(s->d_name, ".."))
-			return 0;
-	}
-
-	return 1;
-}
-
-static int lm_idm_scsi_find_block_node(const char *blk_path, char **blk_dev)
-{
-        struct dirent **dir_list;
-        int dir_num;
-
-        dir_num = scandir(blk_path, &dir_list, lm_idm_scsi_block_node_select, NULL);
-        if (dir_num < 0) {
-		log_error("Cannot find valid directory entry in %s", blk_path);
-                return -1;
-	}
-
-	/*
-	 * Should have only one block name under the path, if the dir_num is
-	 * not 1 (e.g. 0 or any number bigger than 1), it must be wrong and
-	 * should never happen.
-	 */
-	if (dir_num == 1)
-		*blk_dev = strdup(dir_list[0]->d_name);
-	else
-		*blk_dev = NULL;
-
-	lm_idm_free_dir_list(dir_list, dir_num);
-
-	if (!*blk_dev)
-		return -1;
-
-        return dir_num;
-}
-
-static int lm_idm_scsi_search_propeller_partition(char *dev)
-{
-	int i, nparts;
-	blkid_probe pr;
-	blkid_partlist ls;
-	int found = -1;
-
-	pr = blkid_new_probe_from_filename(dev);
-	if (!pr) {
-		log_error("%s: failed to create a new libblkid probe", dev);
-		return -1;
-	}
-
-	/* Binary interface */
-	ls = blkid_probe_get_partitions(pr);
-	if (!ls) {
-		log_error("%s: failed to read partitions", dev);
-		return -1;
-	}
-
-	/* List partitions */
-	nparts = blkid_partlist_numof_partitions(ls);
-	if (!nparts)
-		goto done;
-
-	for (i = 0; i < nparts; i++) {
-		const char *p;
-		blkid_partition par = blkid_partlist_get_partition(ls, i);
-
-		p = blkid_partition_get_name(par);
-		if (p) {
-			log_debug("partition name='%s'", p);
-
-			if (!strcmp(p, "propeller"))
-				found = blkid_partition_get_partno(par);
-		}
-
-		if (found >= 0)
-			break;
-	}
-
-done:
-	blkid_free_probe(pr);
-	return found;
-}
-
-static char *lm_idm_scsi_get_block_device_node(const char *scsi_path)
-{
-	char *blk_path = NULL;
-	char *blk_dev = NULL;
-	char *dev_node = NULL;
-	int ret;
-
-	/*
-	 * Locate the "block" directory, such like:
-	 * /sys/bus/scsi/devices/1:0:0:0/block
-	 */
-	ret = asprintf(&blk_path, "%s/%s", scsi_path, "block");
-	if (ret < 0) {
-		log_error("Fail to allocate block path for %s", scsi_path);
-		goto fail;
-	}
-
-	ret = lm_idm_scsi_find_block_dirctory(blk_path);
-	if (ret < 0) {
-		log_error("Fail to find block path %s", blk_path);
-		goto fail;
-	}
-
-	/*
-	 * Locate the block device name, such like:
-	 * /sys/bus/scsi/devices/1:0:0:0/block/sdb
-	 *
-	 * After return from this function and if it makes success,
-	 * the global variable "blk_dev" points to the block device
-	 * name, in this example it points to string "sdb".
-	 */
-	ret = lm_idm_scsi_find_block_node(blk_path, &blk_dev);
-	if (ret < 0) {
-		log_error("Fail to find block node");
-		goto fail;
-	}
-
-	ret = asprintf(&dev_node, "/dev/%s", blk_dev);
-	if (ret < 0) {
-		log_error("Fail to allocate memory for blk node path");
-		goto fail;
-	}
-
-	ret = lm_idm_scsi_search_propeller_partition(dev_node);
-	if (ret < 0)
-		goto fail;
-
-	free(blk_path);
-	free(blk_dev);
-	return dev_node;
-
-fail:
-	free(blk_path);
-	free(blk_dev);
-	free(dev_node);
-	return NULL;
-}
-
-static int lm_idm_get_gl_lock_pv_list(void)
-{
-	struct dirent **dir_list;
-	char scsi_bus_path[PATH_MAX];
-	char *drive_path;
-	int i, dir_num, ret;
-
-	if (glb_lock_op.drive_num)
-		return 0;
-
-	snprintf(scsi_bus_path, sizeof(scsi_bus_path), "%s%s",
-		 SYSFS_ROOT, BUS_SCSI_DEVS);
-
-	dir_num = scandir(scsi_bus_path, &dir_list,
-			  lm_idm_scsi_directory_select, NULL);
-	if (dir_num < 0) {  /* scsi mid level may not be loaded */
-		log_error("Attached devices: none");
-		return -1;
-	}
-
-	for (i = 0; i < dir_num; i++) {
-		char *scsi_path;
-
-		ret = asprintf(&scsi_path, "%s/%s", scsi_bus_path,
-			       dir_list[i]->d_name);
-		if (ret < 0) {
-			log_error("Fail to allocate memory for scsi directory");
-			goto failed;
-		}
-
-		if (glb_lock_op.drive_num >= ILM_DRIVE_MAX_NUM) {
-			log_error("Global lock: drive number %d exceeds limitation (%d) ?!",
-				  glb_lock_op.drive_num, ILM_DRIVE_MAX_NUM);
-			free(scsi_path);
-			goto failed;
-		}
-
-		drive_path = lm_idm_scsi_get_block_device_node(scsi_path);
-		if (!drive_path) {
-			free(scsi_path);
-			continue;
-		}
-
-		glb_lock_op.drives[glb_lock_op.drive_num] = drive_path;
-		glb_lock_op.drive_num++;
-
-		free(scsi_path);
-	}
-
-	lm_idm_free_dir_list(dir_list, dir_num);
-	return 0;
-
-failed:
-	lm_idm_free_dir_list(dir_list, dir_num);
-
-	for (i = 0; i < glb_lock_op.drive_num; i++) {
-		if (glb_lock_op.drives[i]) {
-			free(glb_lock_op.drives[i]);
-			glb_lock_op.drives[i] = NULL;
-		}
-	}
-
-	return -1;
-}
-
-static void lm_idm_update_vb_timestamp(uint64_t *vb_timestamp)
-{
-	uint64_t utc_us = read_utc_us();
-
-	/*
-	 * It's possible that the multiple nodes have no clock
-	 * synchronization with microsecond prcision and the time
-	 * is going backward.  For this case, simply increment the
-	 * existing timestamp and write out to drive.
-	 */
-	if (*vb_timestamp >= utc_us)
-		(*vb_timestamp)++;
-	else
-		*vb_timestamp = utc_us;
-}
-
-int lm_prepare_lockspace_idm(struct lockspace *ls)
-{
-	struct lm_idm *lm = NULL;
-
-	lm = malloc(sizeof(struct lm_idm));
-	if (!lm) {
-		log_error("S %s prepare_lockspace_idm fail to allocate lm_idm for %s",
-			  ls->name, ls->vg_name);
-		return -ENOMEM;
-	}
-	memset(lm, 0x0, sizeof(struct lm_idm));
-
-	ls->lm_data = lm;
-	log_debug("S %s prepare_lockspace_idm done", ls->name);
-	return 0;
-}
-
-int lm_add_lockspace_idm(struct lockspace *ls, int adopt)
-{
-	char killpath[IDM_FAILURE_PATH_LEN];
-	char killargs[IDM_FAILURE_ARGS_LEN];
-	struct lm_idm *lmi = (struct lm_idm *)ls->lm_data;
-	int rv;
-
-	if (daemon_test)
-		return 0;
-
-	if (!strcmp(ls->name, S_NAME_GL_IDM)) {
-		/*
-		 * Prepare the pv list for global lock, if the drive contains
-		 * "propeller" partition, then this drive will be considered
-		 * as a member of pv list.
-		 */
-		rv = lm_idm_get_gl_lock_pv_list();
-		if (rv < 0) {
-			log_error("S %s add_lockspace_idm fail to get pv list for glb lock",
-				  ls->name);
-			return -EIO;
-		} else {
-			log_error("S %s add_lockspace_idm get pv list for glb lock",
-				  ls->name);
-		}
-	}
-
-	/*
-	 * Construct the execution path for command "lvmlockctl" by using the
-	 * path to the lvm binary and appending "lockctl".
-	 */
-	memset(killpath, 0, sizeof(killpath));
-	snprintf(killpath, IDM_FAILURE_PATH_LEN, "%slockctl", LVM_PATH);
-
-	/* Pass the argument "--kill vg_name" for killpath */
-	memset(killargs, 0, sizeof(killargs));
-	snprintf(killargs, IDM_FAILURE_ARGS_LEN, "--kill %s", ls->vg_name);
-
-	/* Connect with IDM lock manager per every lockspace. */
-	rv = ilm_connect(&lmi->sock);
-	if (rv < 0) {
-		log_error("S %s add_lockspace_idm fail to connect the lock manager %d",
-			  ls->name, lmi->sock);
-		lmi->sock = 0;
-		rv = -EMANAGER;
-		goto fail;
-	}
-
-	rv = ilm_set_killpath(lmi->sock, killpath, killargs);
-	if (rv < 0) {
-		log_error("S %s add_lockspace_idm fail to set kill path %d",
-			  ls->name, rv);
-		rv = -EMANAGER;
-		goto fail;
-	}
-
-	log_debug("S %s add_lockspace_idm kill path is: \"%s %s\"",
-		  ls->name, killpath, killargs);
-
-	log_debug("S %s add_lockspace_idm done", ls->name);
-	return 0;
-
-fail:
-	if (lmi && lmi->sock)
-		close(lmi->sock);
-
-	free(lmi);
-
-	return rv;
-}
-
-int lm_rem_lockspace_idm(struct lockspace *ls, int free_vg)
-{
-	struct lm_idm *lmi = (struct lm_idm *)ls->lm_data;
-	int i, rv = 0;
-
-	if (daemon_test)
-		goto out;
-
-	rv = ilm_disconnect(lmi->sock);
-	if (rv < 0)
-		log_error("S %s rem_lockspace_idm error %d", ls->name, rv);
-
-	/* Release pv list for global lock */
-	if (!strcmp(ls->name, "lvm_global")) {
-		for (i = 0; i < glb_lock_op.drive_num; i++) {
-			if (glb_lock_op.drives[i]) {
-				free(glb_lock_op.drives[i]);
-				glb_lock_op.drives[i] = NULL;
-			}
-		}
-	}
-
-out:
-	free(lmi);
-	ls->lm_data = NULL;
-	return rv;
-}
-
-static int lm_add_resource_idm(struct lockspace *ls, struct resource *r)
-{
-	struct rd_idm *rdi = (struct rd_idm *)r->lm_data;
-
-	if (r->type == LD_RT_GL || r->type == LD_RT_VG) {
-		rdi->vb = zalloc(sizeof(struct val_blk));
-		if (!rdi->vb)
-			return -ENOMEM;
-	}
-
-	return 0;
-}
-
-int lm_rem_resource_idm(struct lockspace *ls, struct resource *r)
-{
-	struct rd_idm *rdi = (struct rd_idm *)r->lm_data;
-
-	free(rdi->vb);
-
-	memset(rdi, 0, sizeof(struct rd_idm));
-	r->lm_init = 0;
-	return 0;
-}
-
-static int to_idm_mode(int ld_mode)
-{
-	switch (ld_mode) {
-	case LD_LK_EX:
-		return IDM_MODE_EXCLUSIVE;
-	case LD_LK_SH:
-		return IDM_MODE_SHAREABLE;
-	default:
-		break;
-	};
-
-	return -1;
-}
-
-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)
-{
-	struct lm_idm *lmi = (struct lm_idm *)ls->lm_data;
-	struct rd_idm *rdi = (struct rd_idm *)r->lm_data;
-	char **drive_path = NULL;
-	uint64_t timestamp;
-	int reset_vb = 0;
-	int rv, i;
-
-	if (!r->lm_init) {
-		rv = lm_add_resource_idm(ls, r);
-		if (rv < 0)
-			return rv;
-		r->lm_init = 1;
-	}
-
-	rdi->op.mode = to_idm_mode(ld_mode);
-	if (rv < 0) {
-		log_error("lock_idm invalid mode %d", ld_mode);
-		return -EINVAL;
-	}
-
-	log_debug("S %s R %s lock_idm", ls->name, r->name);
-
-	if (daemon_test) {
-		if (rdi->vb) {
-			vb_out->version = le16_to_cpu(rdi->vb->version);
-			vb_out->flags = le16_to_cpu(rdi->vb->flags);
-			vb_out->r_version = le32_to_cpu(rdi->vb->r_version);
-		}
-		return 0;
-	}
-
-	rdi->op.timeout = IDM_TIMEOUT;
-
-	/*
-	 * Generate the UUID string, for RT_VG, it only needs to generate
-	 * UUID string for VG level, for RT_LV, it needs to generate
-	 * UUID strings for both VG and LV levels.  At the end, these IDs
-	 * are used as identifier for IDM in drive firmware.
-	 */
-	if (r->type == LD_RT_VG || r->type == LD_RT_LV)
-		log_debug("S %s R %s VG uuid %s", ls->name, r->name, ls->vg_uuid);
-	if (r->type == LD_RT_LV)
-		log_debug("S %s R %s LV uuid %s", ls->name, r->name, lv_uuid);
-
-	memset(&rdi->id, 0x0, sizeof(struct idm_lock_id));
-	if (r->type == LD_RT_VG) {
-		uuid_read_format(rdi->id.vg_uuid, ls->vg_uuid);
-	} else if (r->type == LD_RT_LV) {
-		uuid_read_format(rdi->id.vg_uuid, ls->vg_uuid);
-		uuid_read_format(rdi->id.lv_uuid, lv_uuid);
-	}
-
-	/*
-	 * Establish the drive path list for lock, since different lock type
-	 * has different drive list; the GL lock uses the global pv list,
-	 * the VG lock uses the pv list spanned for the whole volume group,
-	 * the LV lock uses the pv list for the logical volume.
-	 */
-	switch (r->type) {
-	case LD_RT_GL:
-		drive_path = glb_lock_op.drives;
-		rdi->op.drive_num = glb_lock_op.drive_num;
-		break;
-	case LD_RT_VG:
-		drive_path = (char **)ls->pvs.path;
-		rdi->op.drive_num = ls->pvs.num;
-		break;
-	case LD_RT_LV:
-		drive_path = (char **)pvs->path;
-		rdi->op.drive_num = pvs->num;
-		break;
-	default:
-		break;
-	}
-
-	if (!drive_path) {
-		log_error("S %s R %s cannot find the valid drive path array",
-			  ls->name, r->name);
-		return -EINVAL;
-	}
-
-	if (rdi->op.drive_num >= ILM_DRIVE_MAX_NUM) {
-		log_error("S %s R %s exceeds limitation for drive path array",
-			  ls->name, r->name);
-		return -EINVAL;
-	}
-
-	for (i = 0; i < rdi->op.drive_num; i++)
-		rdi->op.drives[i] = drive_path[i];
-
-	log_debug("S %s R %s mode %d drive_num %d timeout %d",
-		  ls->name, r->name, rdi->op.mode,
-		  rdi->op.drive_num, rdi->op.timeout);
-
-	for (i = 0; i < rdi->op.drive_num; i++)
-		log_debug("S %s R %s drive path[%d] %s",
-			  ls->name, r->name, i, rdi->op.drives[i]);
-
-	rv = ilm_lock(lmi->sock, &rdi->id, &rdi->op);
-	if (rv < 0) {
-		log_debug("S %s R %s lock_idm acquire mode %d rv %d",
-			  ls->name, r->name, ld_mode, rv);
-		return -ELOCKIO;
-	}
-
-	if (rdi->vb) {
-		rv = ilm_read_lvb(lmi->sock, &rdi->id, (char *)&timestamp,
-				  sizeof(uint64_t));
-
-		/*
-		 * If fail to read value block, which might be caused by drive
-		 * failure, notify up layer to invalidate metadata.
-		 */
-		if (rv < 0) {
-			log_error("S %s R %s lock_idm get_lvb error %d",
-				  ls->name, r->name, rv);
-			reset_vb = 1;
-
-			/* Reset timestamp */
-			rdi->vb_timestamp = 0;
-
-		/*
-		 * If the cached timestamp mismatches with the stored value
-		 * in the IDM, this means another host has updated timestamp
-		 * for the new VB.  Let's reset VB and notify up layer to
-		 * invalidate metadata.
-		 */
-		} else if (rdi->vb_timestamp != timestamp) {
-			log_debug("S %s R %s lock_idm get lvb timestamp %lu:%lu",
-				  ls->name, r->name, rdi->vb_timestamp,
-				  timestamp);
-
-			rdi->vb_timestamp = timestamp;
-			reset_vb = 1;
-		}
-
-		if (reset_vb == 1) {
-			memset(rdi->vb, 0, sizeof(struct val_blk));
-			memset(vb_out, 0, sizeof(struct val_blk));
-
-			/*
-			 * The lock is still acquired, but the vb values has
-			 * been invalidated.
-			 */
-			rv = 0;
-			goto out;
-		}
-
-		/* Otherwise, copy the cached VB to up layer */
-		memcpy(vb_out, rdi->vb, sizeof(struct val_blk));
-	}
-
-out:
-	return rv;
-}
-
-int lm_convert_idm(struct lockspace *ls, struct resource *r,
-		   int ld_mode, uint32_t r_version)
-{
-	struct lm_idm *lmi = (struct lm_idm *)ls->lm_data;
-	struct rd_idm *rdi = (struct rd_idm *)r->lm_data;
-	int mode, rv;
-
-	if (rdi->vb && r_version && (r->mode == LD_LK_EX)) {
-		if (!rdi->vb->version) {
-			/* first time vb has been written */
-			rdi->vb->version = VAL_BLK_VERSION;
-		}
-		rdi->vb->r_version = r_version;
-
-		log_debug("S %s R %s convert_idm set r_version %u",
-			  ls->name, r->name, r_version);
-
-		lm_idm_update_vb_timestamp(&rdi->vb_timestamp);
-		log_debug("S %s R %s convert_idm vb %x %x %u timestamp %lu",
-			  ls->name, r->name, rdi->vb->version, rdi->vb->flags,
-			  rdi->vb->r_version, rdi->vb_timestamp);
-	}
-
-	mode = to_idm_mode(ld_mode);
-	if (mode < 0) {
-		log_error("S %s R %s convert_idm invalid mode %d",
-			  ls->name, r->name, ld_mode);
-		return -EINVAL;
-	}
-
-	log_debug("S %s R %s convert_idm", ls->name, r->name);
-
-	if (daemon_test)
-		return 0;
-
-	if (rdi->vb && r_version && (r->mode == LD_LK_EX)) {
-		rv = ilm_write_lvb(lmi->sock, &rdi->id,
-				   (char *)rdi->vb_timestamp, sizeof(uint64_t));
-		if (rv < 0) {
-			log_error("S %s R %s convert_idm write lvb error %d",
-				  ls->name, r->name, rv);
-			return -ELMERR;
-		}
-	}
-
-	rv = ilm_convert(lmi->sock, &rdi->id, mode);
-	if (rv < 0)
-		log_error("S %s R %s convert_idm convert error %d",
-			  ls->name, r->name, rv);
-
-	return rv;
-}
-
-int lm_unlock_idm(struct lockspace *ls, struct resource *r,
-		  uint32_t r_version, uint32_t lmu_flags)
-{
-	struct lm_idm *lmi = (struct lm_idm *)ls->lm_data;
-	struct rd_idm *rdi = (struct rd_idm *)r->lm_data;
-	int rv;
-
-	if (rdi->vb && r_version && (r->mode == LD_LK_EX)) {
-		if (!rdi->vb->version) {
-			/* first time vb has been written */
-			rdi->vb->version = VAL_BLK_VERSION;
-		}
-		if (r_version)
-			rdi->vb->r_version = r_version;
-
-		lm_idm_update_vb_timestamp(&rdi->vb_timestamp);
-		log_debug("S %s R %s unlock_idm vb %x %x %u timestamp %lu",
-			  ls->name, r->name, rdi->vb->version, rdi->vb->flags,
-			  rdi->vb->r_version, rdi->vb_timestamp);
-	}
-
-	log_debug("S %s R %s unlock_idm", ls->name, r->name);
-
-	if (daemon_test)
-		return 0;
-
-	if (rdi->vb && r_version && (r->mode == LD_LK_EX)) {
-		rv = ilm_write_lvb(lmi->sock, &rdi->id,
-				   (char *)&rdi->vb_timestamp, sizeof(uint64_t));
-		if (rv < 0) {
-			log_error("S %s R %s unlock_idm set_lvb error %d",
-				  ls->name, r->name, rv);
-			return -ELMERR;
-		}
-	}
-
-	rv = ilm_unlock(lmi->sock, &rdi->id);
-	if (rv < 0)
-		log_error("S %s R %s unlock_idm error %d", ls->name, r->name, rv);
-
-	return rv;
-}
-
-int lm_hosts_idm(struct lockspace *ls, int notify)
-{
-	struct resource *r;
-	struct lm_idm *lmi = (struct lm_idm *)ls->lm_data;
-	struct rd_idm *rdi;
-	int count, self, found_others = 0;
-	int rv;
-
-	list_for_each_entry(r, &ls->resources, list) {
-		if (!r->lm_init)
-			continue;
-
-		rdi = (struct rd_idm *)r->lm_data;
-
-		rv = ilm_get_host_count(lmi->sock, &rdi->id, &rdi->op,
-					&count, &self);
-		if (rv < 0) {
-			log_error("S %s lm_hosts_idm error %d", ls->name, rv);
-			return rv;
-		}
-
-		/* Fixup: need to reduce self count */
-		if (count > found_others)
-			found_others = count;
-	}
-
-	return found_others;
-}
-
-int lm_get_lockspaces_idm(struct list_head *ls_rejoin)
-{
-	/* TODO: Need to add support for adoption. */
-	return -1;
-}
-
-int lm_is_running_idm(void)
-{
-	int sock, rv;
-
-	if (daemon_test)
-		return gl_use_idm;
-
-	rv = ilm_connect(&sock);
-	if (rv < 0) {
-		log_error("Fail to connect seagate IDM lock manager %d", rv);
-		return 0;
-	}
-
-	ilm_disconnect(sock);
-	return 1;
-}
--- a/daemons/lvmlockd/lvmlockd-internal.h
+++ b/daemons/lvmlockd/lvmlockd-internal.h
@@ -11,8 +11,6 @@
 #ifndef _LVM_LVMLOCKD_INTERNAL_H
 #define _LVM_LVMLOCKD_INTERNAL_H

-#include "base/memory/container_of.h"
-
 #define MAX_NAME 64
 #define MAX_ARGS 64

@@ -20,7 +18,6 @@
 #define R_NAME_GL          "GLLK"
 #define R_NAME_VG          "VGLK"
 #define S_NAME_GL_DLM      "lvm_global"
-#define S_NAME_GL_IDM      "lvm_global"
 #define LVM_LS_PREFIX      "lvm_"           /* ls name is prefix + vg_name */
 /* global lockspace name for sanlock is a vg name */

@@ -30,7 +27,6 @@ enum {
 	LD_LM_UNUSED = 1, /* place holder so values match lib/locking/lvmlockd.h */
 	LD_LM_DLM = 2,
 	LD_LM_SANLOCK = 3,
-	LD_LM_IDM = 4,
 };

 /* operation types */
@@ -120,11 +116,6 @@ struct client {
 */
 #define DEFAULT_MAX_RETRIES 4

-struct pvs {
-	char **path;
-	int num;
-};
-
 struct action {
 	struct list_head list;
 	uint32_t client_id;
@@ -147,7 +138,6 @@ struct action {
 	char vg_args[MAX_ARGS+1];
 	char lv_args[MAX_ARGS+1];
 	char vg_sysid[MAX_NAME+1];
-	struct pvs pvs;			/* PV list for idm */
 };

 struct resource {
@@ -155,7 +145,6 @@ struct resource {
 	char name[MAX_NAME+1];		/* vg name or lv name */
 	int8_t type;			/* resource type LD_RT_ */
 	int8_t mode;
-	int8_t adopt_mode;
 	unsigned int sh_count;		/* number of sh locks on locks list */
 	uint32_t version;
 	uint32_t last_client_id;	/* last client_id to lock or unlock resource */
@@ -166,7 +155,7 @@ struct resource {
 	struct list_head locks;
 	struct list_head actions;
 	char lv_args[MAX_ARGS+1];
-	char lm_data[];			/* lock manager specific data */
+	char lm_data[0];		/* lock manager specific data */
 };

 #define LD_LF_PERSISTENT 0x00000001
@@ -192,7 +181,6 @@ struct lockspace {
 	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 */
 	pthread_t thread;		/* makes synchronous lock requests */
@@ -228,6 +216,10 @@ struct val_blk {
 /* lm_unlock flags */
 #define LMUF_FREE_VG 0x00000001

+#define container_of(ptr, type, member) ({                      \
+	const typeof( ((type *)0)->member ) *__mptr = (ptr);    \
+	(type *)( (char *)__mptr - offsetof(type,member) );})
+
 static inline void INIT_LIST_HEAD(struct list_head *list)
 {
 	list->next = list;
@@ -334,13 +326,10 @@ static inline int list_empty(const struct list_head *head)
 EXTERN int gl_type_static;
 EXTERN int gl_use_dlm;
 EXTERN int gl_use_sanlock;
-EXTERN int gl_use_idm;
 EXTERN int gl_vg_removed;
 EXTERN char gl_lsname_dlm[MAX_NAME+1];
 EXTERN char gl_lsname_sanlock[MAX_NAME+1];
-EXTERN char gl_lsname_idm[MAX_NAME+1];
 EXTERN int global_dlm_lockspace_exists;
-EXTERN int global_idm_lockspace_exists;

 EXTERN int daemon_test; /* run as much as possible without a live lock manager */
 EXTERN int daemon_debug;
@@ -631,102 +620,4 @@ static inline int lm_support_sanlock(void)

 #endif /* sanlock support */

-#ifdef LOCKDIDM_SUPPORT
-
-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);
-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);
-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,
-		  uint32_t r_version, uint32_t lmu_flags);
-int lm_hosts_idm(struct lockspace *ls, int notify);
-int lm_get_lockspaces_idm(struct list_head *ls_rejoin);
-int lm_is_running_idm(void);
-int lm_rem_resource_idm(struct lockspace *ls, struct resource *r);
-
-static inline int lm_support_idm(void)
-{
-	return 1;
-}
-
-#else
-
-static inline int lm_data_size_idm(void)
-{
-	return -1;
-}
-
-static inline int lm_init_vg_idm(char *ls_name, char *vg_name, uint32_t flags,
-			  char *vg_args)
-{
-	return -1;
-}
-
-static inline int lm_prepare_lockspace_idm(struct lockspace *ls)
-{
-	return -1;
-}
-
-static inline int lm_add_lockspace_idm(struct lockspace *ls, int adopt)
-{
-	return -1;
-}
-
-static inline int lm_rem_lockspace_idm(struct lockspace *ls, int free_vg)
-{
-	return -1;
-}
-
-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)
-{
-	return -1;
-}
-
-static inline int lm_convert_idm(struct lockspace *ls, struct resource *r,
-			  int ld_mode, uint32_t r_version)
-{
-	return -1;
-}
-
-static inline int lm_unlock_idm(struct lockspace *ls, struct resource *r,
-			 uint32_t r_version, uint32_t lmu_flags)
-{
-	return -1;
-}
-
-static inline int lm_hosts_idm(struct lockspace *ls, int notify)
-{
-	return -1;
-}
-
-static inline int lm_get_lockspaces_idm(struct list_head *ls_rejoin)
-{
-	return -1;
-}
-
-static inline int lm_is_running_idm(void)
-{
-	return 0;
-}
-
-static inline int lm_rem_resource_idm(struct lockspace *ls, struct resource *r)
-{
-	return -1;
-}
-
-static inline int lm_support_idm(void)
-{
-	return 0;
-}
-
-#endif /* Seagate IDM support */
-
 #endif	/* _LVM_LVMLOCKD_INTERNAL_H */
--- a/daemons/lvmlockd/lvmlockd-sanlock.c
+++ b/daemons/lvmlockd/lvmlockd-sanlock.c
@@ -227,17 +227,6 @@ int lm_data_size_sanlock(void)

 static uint64_t daemon_test_lv_count;

-/*
- * Copy a null-terminated string "str" into a fixed
- * size (SANLK_NAME_LEN) struct field "buf" which is
- * not null terminated.
- */
-static void strcpy_name_len(char *buf, char *str, int len)
-{
-	/* coverity[buffer_size_warning] */
-	strncpy(buf, str, SANLK_NAME_LEN);
-}
-
 static int lock_lv_name_from_args(char *vg_args, char *lock_lv_name)
 {
 	return last_string_from_args(vg_args, lock_lv_name);
@@ -585,7 +574,7 @@ int lm_init_vg_sanlock(char *ls_name, char *vg_name, uint32_t flags, char *vg_ar
 		}
 	}

-	strcpy_name_len(ss.name, ls_name, SANLK_NAME_LEN);
+	strncpy(ss.name, ls_name, SANLK_NAME_LEN);
 	memcpy(ss.host_id_disk.path, disk.path, SANLK_PATH_LEN);
 	ss.host_id_disk.offset = 0;
 	ss.flags = (sector_size == 4096) ? (SANLK_LSF_SECTOR4K | SANLK_LSF_ALIGN8M) :
@@ -618,7 +607,7 @@ int lm_init_vg_sanlock(char *ls_name, char *vg_name, uint32_t flags, char *vg_ar
 		gl_name = R_NAME_GL;

 	memcpy(rd.rs.lockspace_name, ss.name, SANLK_NAME_LEN);
-	strcpy_name_len(rd.rs.name, (char *)gl_name, SANLK_NAME_LEN);
+	strncpy(rd.rs.name, gl_name, SANLK_NAME_LEN);
 	memcpy(rd.rs.disks[0].path, disk.path, SANLK_PATH_LEN);
 	rd.rs.disks[0].offset = align_size * GL_LOCK_BEGIN;
 	rd.rs.num_disks = 1;
@@ -633,7 +622,7 @@ int lm_init_vg_sanlock(char *ls_name, char *vg_name, uint32_t flags, char *vg_ar
 	}

 	memcpy(rd.rs.lockspace_name, ss.name, SANLK_NAME_LEN);
-	strcpy_name_len(rd.rs.name, (char *)R_NAME_VG, SANLK_NAME_LEN);
+	strncpy(rd.rs.name, R_NAME_VG, SANLK_NAME_LEN);
 	memcpy(rd.rs.disks[0].path, disk.path, SANLK_PATH_LEN);
 	rd.rs.disks[0].offset = align_size * VG_LOCK_BEGIN;
 	rd.rs.num_disks = 1;
@@ -667,8 +656,8 @@ int lm_init_vg_sanlock(char *ls_name, char *vg_name, uint32_t flags, char *vg_ar
 	rd.rs.flags = (sector_size == 4096) ? (SANLK_RES_SECTOR4K | SANLK_RES_ALIGN8M) :
 					      (SANLK_RES_SECTOR512 | SANLK_RES_ALIGN1M);
 	memcpy(rd.rs.disks[0].path, disk.path, SANLK_PATH_LEN);
-	strcpy_name_len(rd.rs.lockspace_name, ls_name, SANLK_NAME_LEN);
-	strcpy_name_len(rd.rs.name, (char *)"#unused", SANLK_NAME_LEN);
+	strncpy(rd.rs.lockspace_name, ls_name, SANLK_NAME_LEN);
+	strcpy(rd.rs.name, "#unused");

 	offset = align_size * LV_LOCK_BEGIN;

@@ -684,10 +673,10 @@ int lm_init_vg_sanlock(char *ls_name, char *vg_name, uint32_t flags, char *vg_ar
 			break;
 		}

-		if (rv < 0) {
+		if (rv) {
 			log_error("clear lv resource area %llu error %d",
 				  (unsigned long long)offset, rv);
-			return rv;
+			break;
 		}
 		offset += align_size;
 	}
@@ -736,7 +725,7 @@ int lm_init_lv_sanlock(char *ls_name, char *vg_name, char *lv_name,
 		return 0;
 	}

-	strcpy_name_len(rd.rs.lockspace_name, ls_name, SANLK_NAME_LEN);
+	strncpy(rd.rs.lockspace_name, ls_name, SANLK_NAME_LEN);
 	rd.rs.num_disks = 1;
 	if ((rv = build_dm_path(rd.rs.disks[0].path, SANLK_PATH_LEN, vg_name, lock_lv_name)))
 		return rv;
@@ -811,7 +800,7 @@ int lm_init_lv_sanlock(char *ls_name, char *vg_name, char *lv_name,
 			log_debug("S %s init_lv_san %s found unused area at %llu",
 				  ls_name, lv_name, (unsigned long long)offset);

-			strcpy_name_len(rd.rs.name, lv_name, SANLK_NAME_LEN);
+			strncpy(rd.rs.name, lv_name, SANLK_NAME_LEN);
 			rd.rs.flags = (sector_size == 4096) ? (SANLK_RES_SECTOR4K | SANLK_RES_ALIGN8M) :
 							      (SANLK_RES_SECTOR512 | SANLK_RES_ALIGN1M);

@@ -910,7 +899,7 @@ int lm_rename_vg_sanlock(char *ls_name, char *vg_name, uint32_t flags, char *vg_
 	if (!sector_size || !align_size)
 		return -1;

-	strcpy_name_len(ss.name, ls_name, SANLK_NAME_LEN);
+	strncpy(ss.name, ls_name, SANLK_NAME_LEN);

 	rv = sanlock_write_lockspace(&ss, 0, 0, sanlock_io_timeout);
 	if (rv < 0) {
@@ -935,7 +924,7 @@ int lm_rename_vg_sanlock(char *ls_name, char *vg_name, uint32_t flags, char *vg_
 		return rv;
 	}

-	memcpy(rd.rs.lockspace_name, ss.name, SANLK_NAME_LEN);
+	strncpy(rd.rs.lockspace_name, ss.name, SANLK_NAME_LEN);

 	rv = sanlock_write_resource(&rd.rs, 0, 0, 0);
 	if (rv < 0) {
@@ -960,7 +949,7 @@ int lm_rename_vg_sanlock(char *ls_name, char *vg_name, uint32_t flags, char *vg_
 		return rv;
 	}

-	memcpy(rd.rs.lockspace_name, ss.name, SANLK_NAME_LEN);
+	strncpy(rd.rs.lockspace_name, ss.name, SANLK_NAME_LEN);

 	rv = sanlock_write_resource(&rd.rs, 0, 0, 0);
 	if (rv < 0) {
@@ -994,7 +983,7 @@ int lm_rename_vg_sanlock(char *ls_name, char *vg_name, uint32_t flags, char *vg_
 			break;
 		}

-		memcpy(rd.rs.lockspace_name, ss.name, SANLK_NAME_LEN);
+		strncpy(rd.rs.lockspace_name, ss.name, SANLK_NAME_LEN);

 		rv = sanlock_write_resource(&rd.rs, 0, 0, 0);
 		if (rv) {
@@ -1020,7 +1009,7 @@ int lm_free_lv_sanlock(struct lockspace *ls, struct resource *r)
 	if (daemon_test)
 		return 0;

-	strcpy_name_len(rs->name, (char *)"#unused", SANLK_NAME_LEN);
+	strcpy(rs->name, "#unused");

 	rv = sanlock_write_resource(rs, 0, 0, 0);
 	if (rv < 0) {
@@ -1054,14 +1043,14 @@ int lm_ex_disable_gl_sanlock(struct lockspace *ls)
 	memset(&rd1, 0, sizeof(rd1));
 	memset(&rd2, 0, sizeof(rd2));

-	strcpy_name_len(rd1.rs.lockspace_name, ls->name, SANLK_NAME_LEN);
-	strcpy_name_len(rd1.rs.name, (char *)R_NAME_GL, SANLK_NAME_LEN);
+	strncpy(rd1.rs.lockspace_name, ls->name, SANLK_NAME_LEN);
+	strncpy(rd1.rs.name, R_NAME_GL, SANLK_NAME_LEN);

-	strcpy_name_len(rd2.rs.lockspace_name, ls->name, SANLK_NAME_LEN);
-	strcpy_name_len(rd2.rs.name, (char *)R_NAME_GL_DISABLED, SANLK_NAME_LEN);
+	strncpy(rd2.rs.lockspace_name, ls->name, SANLK_NAME_LEN);
+	strncpy(rd2.rs.name, R_NAME_GL_DISABLED, SANLK_NAME_LEN);

 	rd1.rs.num_disks = 1;
-	memcpy(rd1.rs.disks[0].path, lms->ss.host_id_disk.path, SANLK_PATH_LEN-1);
+	strncpy(rd1.rs.disks[0].path, lms->ss.host_id_disk.path, SANLK_PATH_LEN-1);
 	rd1.rs.disks[0].offset = lms->align_size * GL_LOCK_BEGIN;
 	
 	rd1.rs.flags = (lms->sector_size == 4096) ? (SANLK_RES_SECTOR4K | SANLK_RES_ALIGN8M) :
@@ -1123,11 +1112,11 @@ int lm_able_gl_sanlock(struct lockspace *ls, int enable)

 	memset(&rd, 0, sizeof(rd));

-	strcpy_name_len(rd.rs.lockspace_name, ls->name, SANLK_NAME_LEN);
-	strcpy_name_len(rd.rs.name, (char *)gl_name, SANLK_NAME_LEN);
+	strncpy(rd.rs.lockspace_name, ls->name, SANLK_NAME_LEN);
+	strncpy(rd.rs.name, gl_name, SANLK_NAME_LEN);

 	rd.rs.num_disks = 1;
-	memcpy(rd.rs.disks[0].path, lms->ss.host_id_disk.path, SANLK_PATH_LEN-1);
+	strncpy(rd.rs.disks[0].path, lms->ss.host_id_disk.path, SANLK_PATH_LEN-1);
 	rd.rs.disks[0].offset = lms->align_size * GL_LOCK_BEGIN;
 	rd.rs.flags = (lms->sector_size == 4096) ? (SANLK_RES_SECTOR4K | SANLK_RES_ALIGN8M) :
 						   (SANLK_RES_SECTOR512 | SANLK_RES_ALIGN1M);
@@ -1164,12 +1153,12 @@ static int gl_is_enabled(struct lockspace *ls, struct lm_sanlock *lms)

 	memset(&rd, 0, sizeof(rd));

-	strcpy_name_len(rd.rs.lockspace_name, ls->name, SANLK_NAME_LEN);
+	strncpy(rd.rs.lockspace_name, ls->name, SANLK_NAME_LEN);

 	/* leave rs.name empty, it is what we're checking */

 	rd.rs.num_disks = 1;
-	memcpy(rd.rs.disks[0].path, lms->ss.host_id_disk.path, SANLK_PATH_LEN-1);
+	strncpy(rd.rs.disks[0].path, lms->ss.host_id_disk.path, SANLK_PATH_LEN-1);

 	offset = lms->align_size * GL_LOCK_BEGIN;
 	rd.rs.disks[0].offset = offset;
@@ -1235,9 +1224,9 @@ int lm_find_free_lock_sanlock(struct lockspace *ls, uint64_t *free_offset, int *

 	memset(&rd, 0, sizeof(rd));

-	strcpy_name_len(rd.rs.lockspace_name, ls->name, SANLK_NAME_LEN);
+	strncpy(rd.rs.lockspace_name, ls->name, SANLK_NAME_LEN);
 	rd.rs.num_disks = 1;
-	memcpy(rd.rs.disks[0].path, lms->ss.host_id_disk.path, SANLK_PATH_LEN-1);
+	strncpy(rd.rs.disks[0].path, lms->ss.host_id_disk.path, SANLK_PATH_LEN-1);
 	rd.rs.flags = (lms->sector_size == 4096) ? (SANLK_RES_SECTOR4K | SANLK_RES_ALIGN8M) :
 						   (SANLK_RES_SECTOR512 | SANLK_RES_ALIGN1M);

@@ -1422,7 +1411,7 @@ int lm_prepare_lockspace_sanlock(struct lockspace *ls)
 	memcpy(lms->ss.name, lsname, SANLK_NAME_LEN);
 	lms->ss.host_id_disk.offset = 0;
 	lms->ss.host_id = ls->host_id;
-	memcpy(lms->ss.host_id_disk.path, disk_path, SANLK_PATH_LEN-1);
+	strncpy(lms->ss.host_id_disk.path, disk_path, SANLK_PATH_LEN-1);

 	if (daemon_test) {
 		if (!gl_lsname_sanlock[0]) {
@@ -1514,7 +1503,8 @@ out:
 fail:
 	if (lms && lms->sock)
 		close(lms->sock);
-	free(lms);
+	if (lms)
+		free(lms);
 	return ret;
 }

@@ -1576,8 +1566,10 @@ int lm_rem_lockspace_sanlock(struct lockspace *ls, int free_vg)
 		goto out;

 	rv = sanlock_rem_lockspace(&lms->ss, 0);
-	if (rv < 0)
+	if (rv < 0) {
 		log_error("S %s rem_lockspace_san error %d", ls->name, rv);
+		return rv;
+	}

 	if (free_vg) {
 		/*
@@ -1586,7 +1578,7 @@ int lm_rem_lockspace_sanlock(struct lockspace *ls, int free_vg)
 		 * This shouldn't be generally necessary, but there may some races
 		 * between nodes starting and removing a vg which this could help.
 		 */
-		strcpy_name_len(lms->ss.name, (char *)"#unused", SANLK_NAME_LEN);
+		strncpy(lms->ss.name, "#unused", SANLK_NAME_LEN);

 		rv = sanlock_write_lockspace(&lms->ss, 0, 0, sanlock_io_timeout);
 		if (rv < 0) {
@@ -1614,8 +1606,8 @@ static int lm_add_resource_sanlock(struct lockspace *ls, struct resource *r)
 	struct lm_sanlock *lms = (struct lm_sanlock *)ls->lm_data;
 	struct rd_sanlock *rds = (struct rd_sanlock *)r->lm_data;

-	strcpy_name_len(rds->rs.lockspace_name, ls->name, SANLK_NAME_LEN);
-	strcpy_name_len(rds->rs.name, r->name, SANLK_NAME_LEN);
+	strncpy(rds->rs.lockspace_name, ls->name, SANLK_NAME_LEN);
+	strncpy(rds->rs.name, r->name, SANLK_NAME_LEN);
 	rds->rs.num_disks = 1;
 	memcpy(rds->rs.disks[0].path, lms->ss.host_id_disk.path, SANLK_PATH_LEN);
 	rds->rs.flags = (lms->sector_size == 4096) ? (SANLK_RES_SECTOR4K | SANLK_RES_ALIGN8M) : (SANLK_RES_SECTOR512 | SANLK_RES_ALIGN1M);
@@ -1642,7 +1634,8 @@ int lm_rem_resource_sanlock(struct lockspace *ls, struct resource *r)

 	/* FIXME: assert r->mode == UN or unlock if it's not? */

-	free(rds->vb);
+	if (rds->vb)
+		free(rds->vb);

 	memset(rds, 0, sizeof(struct rd_sanlock));
 	r->lm_init = 0;
@@ -1658,7 +1651,7 @@ int lm_lock_sanlock(struct lockspace *ls, struct resource *r, int ld_mode,
 	struct sanlk_options opt;
 	uint64_t lock_lv_offset;
 	uint32_t flags = 0;
-	struct val_blk vb = { 0 };
+	struct val_blk vb;
 	int added = 0;
 	int rv;

@@ -2044,7 +2037,7 @@ static int release_rename(struct lockspace *ls, struct resource *r)
 	res1 = (struct sanlk_resource *)&rd1;
 	res2 = (struct sanlk_resource *)&rd2;

-	strcpy_name_len(res2->name, (char *)"invalid_removed", SANLK_NAME_LEN);
+	strcpy(res2->name, "invalid_removed");

 	res_args[0] = res1;
 	res_args[1] = res2;
@@ -2237,8 +2230,8 @@ int lm_get_lockspaces_sanlock(struct list_head *ls_rejoin)

 		ls->lm_type = LD_LM_SANLOCK;
 		ls->host_id = ss->host_id;
-		memcpy(ls->name, ss->name, SANLK_NAME_LEN);
-		memcpy(ls->vg_name, ss->name + strlen(LVM_LS_PREFIX), SANLK_NAME_LEN - strlen(LVM_LS_PREFIX));
+		strncpy(ls->name, ss->name, MAX_NAME);
+		strncpy(ls->vg_name, ss->name + strlen(LVM_LS_PREFIX), MAX_NAME);
 		list_add_tail(&ls->list, ls_rejoin);

 		ss++;
--- a/daemons/lvmpolld/Makefile.in
+++ b/daemons/lvmpolld/Makefile.in
@@ -19,11 +19,12 @@ SOURCES = lvmpolld-core.c lvmpolld-data-utils.c lvmpolld-cmd-utils.c

 TARGETS = lvmpolld

-CFLOW_SOURCES = $(addprefix $(srcdir)/, $(SOURCES))
-CFLOW_TARGET := $(TARGETS)
-
 .PHONY: install_lvmpolld

+CFLOW_LIST = $(SOURCES)
+CFLOW_LIST_TARGET = $(LIB_NAME).cflow
+CFLOW_TARGET = lvmpolld
+
 include $(top_builddir)/make.tmpl

 CFLAGS += $(EXTRA_EXEC_CFLAGS)
--- a/daemons/lvmpolld/lvmpolld-cmd-utils.c
+++ b/daemons/lvmpolld/lvmpolld-cmd-utils.c
@@ -92,12 +92,6 @@ const char **cmdargv_ctr(const struct lvmpolld_lv *pdlv, const char *lvm_binary,
 	if (!add_to_cmd_arr(&cmd_argv, "-An", &i))
 		goto err;

-	if (pdlv->devicesfile) {
-		if (!add_to_cmd_arr(&cmd_argv, "--devicesfile", &i) ||
-		    !add_to_cmd_arr(&cmd_argv, pdlv->devicesfile, &i))
-			goto err;
-	}
-
 	/* terminating NULL */
 	if (!add_to_cmd_arr(&cmd_argv, NULL, &i))
 		goto err;
--- a/daemons/lvmpolld/lvmpolld-core.c
+++ b/daemons/lvmpolld/lvmpolld-core.c
@@ -149,7 +149,7 @@ static void _lvmpolld_global_unlock(struct lvmpolld_state *ls)
 static int _fini(struct daemon_state *s)
 {
 	int done;
-	const struct timespec t = { .tv_nsec = 10000000 }; /* .01 sec */
+	const struct timespec t = { .tv_nsec = 250000000 }; /* .25 sec */
 	struct lvmpolld_state *ls = s->private;

 	DEBUGLOG(s, "fini");
@@ -236,7 +236,9 @@ static int poll_for_output(struct lvmpolld_lv *pdlv, struct lvmpolld_thread_data
 	}

 	while (1) {
-		r = poll(fds, 2, pdlv_get_timeout(pdlv) * 1000);
+		do {
+			r = poll(fds, 2, pdlv_get_timeout(pdlv) * 1000);
+		} while (r < 0 && errno == EINTR);

 		DEBUGLOG(pdlv->ls, "%s: %s %d", PD_LOG_PREFIX, "poll() returned", r);
 		if (r < 0) {
@@ -372,7 +374,7 @@ static void debug_print(struct lvmpolld_state *ls, const char * const* ptr)

 static void *fork_and_poll(void *args)
 {
-	int outfd, errfd, state = 0;
+	int outfd, errfd, state;
 	struct lvmpolld_thread_data *data;
 	pid_t r;

@@ -553,15 +555,14 @@ static struct lvmpolld_lv *construct_pdlv(request req, struct lvmpolld_state *ls
 				     const char *interval, const char *id,
 				     const char *vgname, const char *lvname,
 				     const char *sysdir, enum poll_type type,
-				     unsigned abort_polling, unsigned uinterval,
-				     const char *devicesfile)
+				     unsigned abort_polling, unsigned uinterval)
 {
 	const char **cmdargv, **cmdenvp;
 	struct lvmpolld_lv *pdlv;
 	unsigned handle_missing_pvs = daemon_request_int(req, LVMPD_PARM_HANDLE_MISSING_PVS, 0);

 	pdlv = pdlv_create(ls, id, vgname, lvname, sysdir, type,
-			   interval, uinterval, pdst, devicesfile);
+			   interval, uinterval, pdst);

 	if (!pdlv) {
 		ERROR(ls, "%s: %s", PD_LOG_PREFIX, "failed to create internal LV data structure.");
@@ -620,7 +621,6 @@ static response poll_init(client_handle h, struct lvmpolld_state *ls, request re
 	const char *lvname = daemon_request_str(req, LVMPD_PARM_LVNAME, NULL);
 	const char *vgname = daemon_request_str(req, LVMPD_PARM_VGNAME, NULL);
 	const char *sysdir = daemon_request_str(req, LVMPD_PARM_SYSDIR, NULL);
-	const char *devicesfile = daemon_request_str(req, LVMPD_PARM_DEVICESFILE, NULL);
 	unsigned abort_polling = daemon_request_int(req, LVMPD_PARM_ABORT, 0);

 	assert(type < POLL_TYPE_MAX);
@@ -680,7 +680,7 @@ static response poll_init(client_handle h, struct lvmpolld_state *ls, request re
 		pdlv->init_rq_count++; /* safe. protected by store lock */
 	} else {
 		pdlv = construct_pdlv(req, ls, pdst, interval, id, vgname,
-				      lvname, sysdir, type, abort_polling, 2 * uinterval, devicesfile);
+				      lvname, sysdir, type, abort_polling, 2 * uinterval);
 		if (!pdlv) {
 			pdst_unlock(pdst);
 			free(id);
--- a/daemons/lvmpolld/lvmpolld-data-utils.c
+++ b/daemons/lvmpolld/lvmpolld-data-utils.c
@@ -93,13 +93,11 @@ struct lvmpolld_lv *pdlv_create(struct lvmpolld_state *ls, const char *id,
 			   const char *vgname, const char *lvname,
 			   const char *sysdir, enum poll_type type,
 			   const char *sinterval, unsigned pdtimeout,
-			   struct lvmpolld_store *pdst,
-			   const char *devicesfile)
+			   struct lvmpolld_store *pdst)
 {
 	char *lvmpolld_id = strdup(id), /* copy */
 	     *full_lvname = _construct_full_lvname(vgname, lvname), /* copy */
 	     *lvm_system_dir_env = _construct_lvm_system_dir_env(sysdir); /* copy */
-	char *devicesfile_dup = devicesfile ? strdup(devicesfile) : NULL;

 	struct lvmpolld_lv tmp = {
 		.ls = ls,
@@ -107,7 +105,6 @@ struct lvmpolld_lv *pdlv_create(struct lvmpolld_state *ls, const char *id,
 		.lvmpolld_id = lvmpolld_id,
 		.lvid = _get_lvid(lvmpolld_id, sysdir),
 		.lvname = full_lvname,
-		.devicesfile = devicesfile_dup,
 		.lvm_system_dir_env = lvm_system_dir_env,
 		.sinterval = strdup(sinterval), /* copy */
 		.pdtimeout = pdtimeout < MIN_POLLING_TIMEOUT ? MIN_POLLING_TIMEOUT : pdtimeout,
@@ -127,7 +124,6 @@ struct lvmpolld_lv *pdlv_create(struct lvmpolld_state *ls, const char *id,
 	return pdlv;

 err:
-	free((void *)devicesfile_dup);
 	free((void *)full_lvname);
 	free((void *)lvmpolld_id);
 	free((void *)lvm_system_dir_env);
@@ -140,7 +136,6 @@ err:
 void pdlv_destroy(struct lvmpolld_lv *pdlv)
 {
 	free((void *)pdlv->lvmpolld_id);
-	free((void *)pdlv->devicesfile);
 	free((void *)pdlv->lvname);
 	free((void *)pdlv->sinterval);
 	free((void *)pdlv->lvm_system_dir_env);
--- a/daemons/lvmpolld/lvmpolld-data-utils.h
+++ b/daemons/lvmpolld/lvmpolld-data-utils.h
@@ -49,7 +49,6 @@ struct lvmpolld_lv {
 	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;
@@ -102,8 +101,7 @@ struct lvmpolld_lv *pdlv_create(struct lvmpolld_state *ls, const char *id,
 			   const char *vgname, const char *lvname,
 			   const char *sysdir, enum poll_type type,
 			   const char *sinterval, unsigned pdtimeout,
-			   struct lvmpolld_store *pdst,
-			   const char *devicesfile);
+			   struct lvmpolld_store *pdst);

 /* only call with appropriate struct lvmpolld_store lock held */
 void pdlv_destroy(struct lvmpolld_lv *pdlv);
--- a/daemons/lvmpolld/lvmpolld-protocol.h
+++ b/daemons/lvmpolld/lvmpolld-protocol.h
@@ -35,7 +35,6 @@
 #define LVMPD_PARM_SYSDIR		"sysdir"
 #define LVMPD_PARM_VALUE		"value" /* either retcode or signal value */
 #define LVMPD_PARM_VGNAME		"vgname"
-#define LVMPD_PARM_DEVICESFILE		"devicesfile"

 #define LVMPD_RESP_FAILED	"failed"
 #define LVMPD_RESP_FINISHED	"finished"
--- a/device_mapper/all.h
+++ b/device_mapper/all.h
@@ -164,30 +164,20 @@ struct dm_info {
 struct dm_deps {
 	uint32_t count;
 	uint32_t filler;
-	uint64_t device[];
+	uint64_t device[0];
 };

 struct dm_names {
 	uint64_t dev;
 	uint32_t next;		/* Offset to next struct from start of this struct */
-	char name[];
-};
-
-struct dm_active_device {
-	struct dm_list list;
-	int major;
-	int minor;
-	char *name;	/* device name */
-
-	uint32_t event_nr; /* valid when DM_DEVICE_LIST_HAS_EVENT_NR is set */
-	char *uuid;	/* valid uuid when DM_DEVICE_LIST_HAS_UUID is set */
+	char name[0];
 };

 struct dm_versions {
 	uint32_t next;		/* Offset to next struct from start of this struct */
 	uint32_t version[3];

-	char name[];
+	char name[0];
 };

 int dm_get_library_version(char *version, size_t size);
@@ -220,25 +210,6 @@ const char *dm_task_get_message_response(struct dm_task *dmt);
 */
 const char *dm_task_get_name(const struct dm_task *dmt);
 struct dm_names *dm_task_get_names(struct dm_task *dmt);
-/*
- * Retrieve the list of devices and put them into easily accessible
- * struct dm_active_device list elements.
- * devs_features provides flag-set with used features so it's easy to check
- * whether the kernel provides i.e. UUID info together with DM names
- */
-#define DM_DEVICE_LIST_HAS_EVENT_NR	1
-#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);

 int dm_task_set_ro(struct dm_task *dmt);
 int dm_task_set_newname(struct dm_task *dmt, const char *newname);
@@ -263,8 +234,6 @@ int dm_task_suppress_identical_reload(struct dm_task *dmt);
 int dm_task_secure_data(struct dm_task *dmt);
 int dm_task_retry_remove(struct dm_task *dmt);
 int dm_task_deferred_remove(struct dm_task *dmt);
-int dm_task_ima_measurement(struct dm_task *dmt);
-void dm_task_skip_reload_params_compare(struct dm_task *dmt);

 /*
 * Record timestamp immediately after the ioctl returns.
@@ -414,7 +383,7 @@ int dm_get_status_cache(struct dm_pool *mem, const char *params,
 			struct dm_status_cache **status);

 struct dm_status_writecache {
-	uint64_t error;
+	uint32_t error;
 	uint64_t total_blocks;
 	uint64_t free_blocks;
 	uint64_t writeback_blocks;
@@ -981,8 +950,6 @@ struct writecache_settings {
 	uint64_t autocommit_time; /* in milliseconds */
 	uint32_t fua;
 	uint32_t nofua;
-	uint32_t cleaner;
-	uint32_t max_age;

 	/*
 	 * Allow an unrecognized key and its val to be passed to the kernel for
@@ -1002,8 +969,6 @@ struct writecache_settings {
 	unsigned autocommit_time_set:1;
 	unsigned fua_set:1;
 	unsigned nofua_set:1;
-	unsigned cleaner_set:1;
-	unsigned max_age_set:1;
 };

 int dm_tree_node_add_writecache_target(struct dm_tree_node *node,
@@ -1017,14 +982,14 @@ int dm_tree_node_add_writecache_target(struct dm_tree_node *node,
 struct integrity_settings {
 	char mode[8];
 	uint32_t tag_size;
-	uint32_t block_size;       /* optional table param always set by lvm */
-	const char *internal_hash; /* optional table param always set by lvm */
+	const char *internal_hash;

 	uint32_t journal_sectors;
 	uint32_t interleave_sectors;
 	uint32_t buffer_sectors;
 	uint32_t journal_watermark;
 	uint32_t commit_time;
+	uint32_t block_size;
 	uint32_t bitmap_flush_interval;
 	uint64_t sectors_per_bit;

@@ -1033,6 +998,7 @@ struct integrity_settings {
 	unsigned buffer_sectors_set:1;
 	unsigned journal_watermark_set:1;
 	unsigned commit_time_set:1;
+	unsigned block_size_set:1;
 	unsigned bitmap_flush_interval_set:1;
 	unsigned sectors_per_bit_set:1;
 };
@@ -1049,8 +1015,6 @@ 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,
 				const struct dm_vdo_target_params *param);
@@ -1103,10 +1067,10 @@ int dm_tree_node_add_replicator_dev_target(struct dm_tree_node *node,
 #define DM_THIN_MIN_DATA_BLOCK_SIZE (UINT32_C(128))
 #define DM_THIN_MAX_DATA_BLOCK_SIZE (UINT32_C(2097152))
 /*
- * Max supported size for thin pool metadata device (17045913600 bytes)
+ * Max supported size for thin pool  metadata device (17112760320 bytes)
+ * Limitation is hardcoded into the kernel and bigger device size
+ * is not accepted.
 * drivers/md/dm-thin-metadata.h THIN_METADATA_MAX_SECTORS
- * But here DM_THIN_MAX_METADATA_SIZE got defined incorrectly
- * Correct size is (UINT64_C(255) * ((1 << 14) - 64) * (4096 / (1 << 9)))
 */
 #define DM_THIN_MAX_METADATA_SIZE   (UINT64_C(255) * (1 << 14) * (4096 / (1 << 9)) - 256 * 1024)

@@ -1119,16 +1083,6 @@ int dm_tree_node_add_thin_pool_target(struct dm_tree_node *node,
 				      uint64_t low_water_mark,
 				      unsigned skip_block_zeroing);

-int dm_tree_node_add_thin_pool_target_v1(struct dm_tree_node *node,
-					 uint64_t size,
-					 uint64_t transaction_id,
-					 const char *metadata_uuid,
-					 const char *pool_uuid,
-					 uint32_t data_block_size,
-					 uint64_t low_water_mark,
-					 unsigned skip_block_zeroing,
-					 unsigned crop_metadata);
-
 /* Supported messages for thin provision target */
 typedef enum {
 	DM_THIN_MESSAGE_CREATE_SNAP,		/* device_id, origin_id */
@@ -1359,7 +1313,7 @@ int dm_bit_get_next(dm_bitset_t bs, int last_bit);
 int dm_bit_get_last(dm_bitset_t bs);
 int dm_bit_get_prev(dm_bitset_t bs, int last_bit);

-#define DM_BITS_PER_INT ((unsigned)sizeof(int) * CHAR_BIT)
+#define DM_BITS_PER_INT (sizeof(int) * CHAR_BIT)

 #define dm_bit(bs, i) \
   ((bs)[((i) / DM_BITS_PER_INT) + 1] & (0x1 << ((i) & (DM_BITS_PER_INT - 1))))
@@ -1983,8 +1937,7 @@ 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);
--- a/device_mapper/datastruct/bitset.c
+++ b/device_mapper/datastruct/bitset.c
@@ -150,8 +150,7 @@ dm_bitset_t dm_bitset_parse_list(const char *str, struct dm_pool *mem,
 				 size_t min_num_bits)
 {
 	unsigned a, b;
-	int c, old_c, totaldigits, ndigits;
-	size_t nmaskbits;
+	int c, old_c, totaldigits, ndigits, nmaskbits;
 	int at_start, in_range;
 	dm_bitset_t mask = NULL;
 	const char *start = str;
@@ -243,3 +242,18 @@ bad:
 	}
 	return NULL;
 }
+
+#if defined(__GNUC__)
+/*
+ * Maintain backward compatibility with older versions that did not
+ * accept a 'min_num_bits' argument to dm_bitset_parse_list().
+ */
+dm_bitset_t dm_bitset_parse_list_v1_02_129(const char *str, struct dm_pool *mem);
+dm_bitset_t dm_bitset_parse_list_v1_02_129(const char *str, struct dm_pool *mem)
+{
+	return dm_bitset_parse_list(str, mem, 0);
+}
+
+#else /* if defined(__GNUC__) */
+
+#endif
--- a/device_mapper/ioctl/libdm-iface.c
+++ b/device_mapper/ioctl/libdm-iface.c
@@ -205,7 +205,7 @@ static int _get_proc_number(const char *file, const char *name,
 	}

 	while (getline(&line, &len, fl) != -1) {
-		if (sscanf(line, "%u %255s\n", &num, &nm[0]) == 2) {
+		if (sscanf(line, "%d %255s\n", &num, &nm[0]) == 2) {
 			if (!strcmp(name, nm)) {
 				if (number) {
 					*number = num;
@@ -493,10 +493,7 @@ static void _dm_task_free_targets(struct dm_task *dmt)

 	for (t = dmt->head; t; t = n) {
 		n = t->next;
-		if (dmt->secure_data)
-			_dm_zfree_string(t->params);
-		else
-			free(t->params);
+		_dm_zfree_string(t->params);
 		free(t->type);
 		free(t);
 	}
@@ -507,10 +504,7 @@ static void _dm_task_free_targets(struct dm_task *dmt)
 void dm_task_destroy(struct dm_task *dmt)
 {
 	_dm_task_free_targets(dmt);
-	if (dmt->secure_data)
-		_dm_zfree_dmi(dmt->dmi.v4);
-	else
-		free(dmt->dmi.v4);
+	_dm_zfree_dmi(dmt->dmi.v4);
 	free(dmt->dev_name);
 	free(dmt->mangled_dev_name);
 	free(dmt->newname);
@@ -616,7 +610,8 @@ int dm_check_version(void)
 int dm_cookie_supported(void)
 {
 	return (dm_check_version() &&
-		((_dm_version == 4) ? _dm_version_minor >= 15 : _dm_version > 4));
+		_dm_version >= 4 &&
+		_dm_version_minor >= 15);
 }

 static int _dm_inactive_supported(void)
@@ -754,159 +749,6 @@ struct dm_deps *dm_task_get_deps(struct dm_task *dmt)
 				   dmt->dmi.v4->data_start);
 }

-
-/*
- * Round up the ptr to an 8-byte boundary.
- * Follow kernel pattern.
- */
-#define ALIGN_MASK 7
-static size_t _align_val(size_t val)
-{
-	return (val + ALIGN_MASK) & ~ALIGN_MASK;
-}
-static void *_align_ptr(void *ptr)
-{
-	return (void *)_align_val((size_t)ptr);
-}
-
-static int _check_has_event_nr(void) {
-	static int _has_event_nr = -1;
-
-	if (_has_event_nr < 0)
-		_has_event_nr = dm_check_version() &&
-			((_dm_version == 4) ?  _dm_version_minor >= 38 : _dm_version > 4);
-
-	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_device_list *devs;
-	unsigned next = 0;
-	uint32_t *event_nr;
-	char *uuid_ptr;
-	size_t len;
-	int cnt = 0;
-
-	*devs_list = 0;
-	*devs_features = 0;
-
-	if ((names = dm_task_get_names(dmt)) && names->dev) {
-		names1 = names;
-		if (!names->name[0])
-			cnt = -1; /* -> cnt == 0 when no device is really present */
-		do {
-			names1 = (struct dm_names *)((char *) names1 + next);
-			next = names1->next;
-			++cnt;
-		} while (next);
-	}
-
-	if (!(devs = malloc(sizeof(*devs) + (cnt ? cnt * sizeof(*dm_dev) + (char*)names1 - (char*)names + 256 : 0))))
-		return_0;
-
-	dm_list_init(&devs->list);
-	devs->count = cnt;
-	devs->uuids = NULL;
-
-	if (!cnt) {
-		/* nothing in the list -> mark all features present */
-		*devs_features |= (DM_DEVICE_LIST_HAS_EVENT_NR | DM_DEVICE_LIST_HAS_UUID);
-		goto out; /* nothing else to do */
-	}
-
-	dm_dev = (struct dm_active_device *) (devs + 1);
-
-	do {
-		names = (struct dm_names *)((char *) names + next);
-
-		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 = NULL;
-
-		strcpy(dm_dev->name, names->name);
-		len = strlen(names->name) + 1;
-
-		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);
-			dm_dev->event_nr = event_nr[0];
-
-			if ((event_nr[1] & DM_NAME_LIST_FLAG_HAS_UUID)) {
-				*devs_features |= DM_DEVICE_LIST_HAS_UUID;
-				uuid_ptr = _align_ptr(event_nr + 2);
-				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->list, &dm_dev->list);
-		dm_dev = dm_new_dev;
-		next = names->next;
-	} while (next);
-
-    out:
-	*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;
-	}
-}
-
 struct dm_names *dm_task_get_names(struct dm_task *dmt)
 {
 	return (struct dm_names *) (((char *) dmt->dmi.v4) +
@@ -963,11 +805,6 @@ int dm_task_suppress_identical_reload(struct dm_task *dmt)
 	return 1;
 }

-void dm_task_skip_reload_params_compare(struct dm_task *dmt)
-{
-	dmt->skip_reload_params_compare = 1;
-}
-
 int dm_task_set_add_node(struct dm_task *dmt, dm_add_node_t add_node)
 {
 	switch (add_node) {
@@ -1078,13 +915,6 @@ int dm_task_secure_data(struct dm_task *dmt)
 	return 1;
 }

-int dm_task_ima_measurement(struct dm_task *dmt)
-{
-	dmt->ima_measurement = 1;
-
-	return 1;
-}
-
 int dm_task_retry_remove(struct dm_task *dmt)
 {
 	dmt->retry_remove = 1;
@@ -1277,7 +1107,7 @@ static int _add_params(int type)

 static struct dm_ioctl *_flatten(struct dm_task *dmt, unsigned repeat_count)
 {
-	size_t min_size;
+	const size_t min_size = 16 * 1024;
 	const int (*version)[3];

 	struct dm_ioctl *dmi;
@@ -1296,18 +1126,6 @@ static struct dm_ioctl *_flatten(struct dm_task *dmt, unsigned repeat_count)
 	else if (dmt->head)
 		log_debug_activation(INTERNAL_ERROR "dm '%s' ioctl should not define parameters.",
 				     _cmd_data_v4[dmt->type].name);
-	switch (dmt->type) {
-	case DM_DEVICE_CREATE:
-	case DM_DEVICE_DEPS:
-	case DM_DEVICE_LIST:
-	case DM_DEVICE_STATUS:
-	case DM_DEVICE_TABLE:
-	case DM_DEVICE_TARGET_MSG:
-		min_size = 16 * 1024;
-		break;
-	default:
-		min_size = 2 * 1024;
-	}

 	if (count && (dmt->sector || dmt->message)) {
 		log_error("targets and message are incompatible");
@@ -1409,11 +1227,9 @@ 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))
-		/* coverity[buffer_size_warning] */
 		strncpy(dmi->name, DEV_NAME(dmt), sizeof(dmi->name));

 	if (DEV_UUID(dmt))
-		/* coverity[buffer_size_warning] */
 		strncpy(dmi->uuid, DEV_UUID(dmt), sizeof(dmi->uuid));

 	if (dmt->type == DM_DEVICE_SUSPEND)
@@ -1452,14 +1268,6 @@ static struct dm_ioctl *_flatten(struct dm_task *dmt, unsigned repeat_count)
 		}
 		dmi->flags |= DM_UUID_FLAG;
 	}
-	if (dmt->ima_measurement) {
-		if (_dm_version_minor < 45) {
-			log_error("WARNING: IMA measurement unsupported by "
-				  "kernel.  Aborting operation.");
-			goto bad;
-		}
-		dmi->flags |= DM_IMA_MEASUREMENT_FLAG;
-	}

 	dmi->target_count = count;
 	dmi->event_nr = dmt->event_nr;
@@ -1521,7 +1329,7 @@ static int _process_mapper_dir(struct dm_task *dmt)
 	}

 	if (closedir(d))
-		log_sys_debug("closedir", dir);
+		log_sys_error("closedir", dir);

 	return r;
 }
@@ -1593,7 +1401,8 @@ static int _udev_complete(struct dm_task *dmt)
 static int _check_uevent_generated(struct dm_ioctl *dmi)
 {
 	if (!dm_check_version() ||
-	    ((_dm_version == 4) ? _dm_version_minor < 17 : _dm_version < 4))
+	    _dm_version < 4 ||
+	    _dm_version_minor < 17)
 		/* can't check, assume uevent is generated */
 		return 1;

@@ -1654,7 +1463,6 @@ static int _create_and_load_v4(struct dm_task *dmt)
 	task->head = dmt->head;
 	task->tail = dmt->tail;
 	task->secure_data = dmt->secure_data;
-	task->ima_measurement = dmt->ima_measurement;

 	r = dm_task_run(task);

@@ -1767,36 +1575,11 @@ static int _reload_with_suppression_v4(struct dm_task *dmt)
 		len = strlen(t2->params);
 		while (len-- > 0 && t2->params[len] == ' ')
 			t2->params[len] = '\0';
-
-		if (t1->start != t2->start) {
-			log_debug("reload %u:%u diff start %llu %llu type %s %s", task->major, task->minor,
-				   (unsigned long long)t1->start, (unsigned long long)t2->start, t1->type, t2->type);
+		if ((t1->start != t2->start) ||
+		    (t1->length != t2->length) ||
+		    (strcmp(t1->type, t2->type)) ||
+		    (strcmp(t1->params, t2->params)))
 			goto no_match;
-		}
-		if (t1->length != t2->length) {
-			log_debug("reload %u:%u diff length %llu %llu type %s %s", task->major, task->minor,
-				  (unsigned long long)t1->length, (unsigned long long)t2->length, t1->type, t2->type);
-			goto no_match;
-		}
-		if (strcmp(t1->type, t2->type)) {
-			log_debug("reload %u:%u diff type %s %s", task->major, task->minor, t1->type, t2->type);
-			goto no_match;
-		}
-		if (strcmp(t1->params, t2->params)) {
-			if (dmt->skip_reload_params_compare) {
-				log_debug("reload %u:%u diff params ignore for type %s",
-					  task->major, task->minor, t1->type);
-				log_debug("reload params1 %s", t1->params);
-				log_debug("reload params2 %s", t2->params);
-			} else {
-				log_debug("reload %u:%u diff params for type %s",
-					  task->major, task->minor, t1->type);
-				log_debug("reload params1 %s", t1->params);
-				log_debug("reload params2 %s", t2->params);
-				goto no_match;
-			}
-		}
-
 		t1 = t1->next;
 		t2 = t2->next;
 	}
@@ -1959,34 +1742,23 @@ static int _do_dm_ioctl_unmangle_string(char *str, const char *str_name,
 static int _dm_ioctl_unmangle_names(int type, struct dm_ioctl *dmi)
 {
 	char buf[DM_NAME_LEN];
-	char buf_uuid[DM_UUID_LEN];
-	struct dm_name_list *names;
+	struct dm_names *names;
 	unsigned next = 0;
 	char *name;
 	int r = 1;
-	uint32_t *event_nr;
-	char *uuid_ptr;
-	dm_string_mangling_t mangling_mode = dm_get_name_mangling_mode();

 	if ((name = dmi->name))
-		r &= _do_dm_ioctl_unmangle_string(name, "name", buf, sizeof(buf),
-						  mangling_mode);
+		r = _do_dm_ioctl_unmangle_string(name, "name", buf, sizeof(buf),
+						 dm_get_name_mangling_mode());

 	if (type == DM_DEVICE_LIST &&
-	    ((names = ((struct dm_name_list *) ((char *)dmi + dmi->data_start)))) &&
+	    ((names = ((struct dm_names *) ((char *)dmi + dmi->data_start)))) &&
 	    names->dev) {
 		do {
-			names = (struct dm_name_list *)((char *) names + next);
-			event_nr = _align_ptr(names->name + strlen(names->name) + 1);
-			r &= _do_dm_ioctl_unmangle_string(names->name, "name",
-							  buf, sizeof(buf), mangling_mode);
-			/* Unmangle also UUID within same loop */
-			if (_check_has_event_nr() &&
-			    (event_nr[1] & DM_NAME_LIST_FLAG_HAS_UUID)) {
-				uuid_ptr = _align_ptr(event_nr + 2);
-				r &= _do_dm_ioctl_unmangle_string(uuid_ptr, "UUID", buf_uuid,
-								  sizeof(buf_uuid), mangling_mode);
-			}
+			names = (struct dm_names *)((char *) names + next);
+			r = _do_dm_ioctl_unmangle_string(names->name, "name",
+							 buf, sizeof(buf),
+							 dm_get_name_mangling_mode());
 			next = names->next;
 		} while (next);
 	}
@@ -2079,7 +1851,7 @@ static struct dm_ioctl *_do_dm_ioctl(struct dm_task *dmt, unsigned command,
 	}

 	log_debug_activation("dm %s %s%s %s%s%s %s%.0d%s%.0d%s"
-			     "%s[ %s%s%s%s%s%s%s%s%s%s] %.0" PRIu64 " %s [%u] (*%u)",
+			     "%s[ %s%s%s%s%s%s%s%s%s] %.0" PRIu64 " %s [%u] (*%u)",
 			     _cmd_data_v4[dmt->type].name,
 			     dmt->new_uuid ? "UUID " : "",
 			     dmi->name, dmi->uuid, dmt->newname ? " " : "",
@@ -2097,7 +1869,6 @@ static struct dm_ioctl *_do_dm_ioctl(struct dm_task *dmt, unsigned command,
 			     dmt->retry_remove ? "retryremove " : "",
 			     dmt->deferred_remove ? "deferredremove " : "",
 			     dmt->secure_data ? "securedata " : "",
-			     dmt->ima_measurement ? "ima_measurement " : "",
 			     dmt->query_inactive_table ? "inactive " : "",
 			     dmt->enable_checks ? "enablechecks " : "",
 			     dmt->sector, _sanitise_message(dmt->message),
@@ -2390,3 +2161,52 @@ void dm_lib_exit(void)
 	_version_ok = 1;
 	_version_checked = 0;
 }
+
+#if defined(__GNUC__)
+/*
+ * Maintain binary backward compatibility.
+ * Version script mechanism works with 'gcc' compatible compilers only.
+ */
+
+/*
+ * This following code is here to retain ABI compatibility after adding
+ * the field deferred_remove to struct dm_info in version 1.02.89.
+ *
+ * Binaries linked against version 1.02.88 of libdevmapper or earlier
+ * will use this function that returns dm_info without the
+ * deferred_remove field.
+ *
+ * Binaries compiled against version 1.02.89 onwards will use
+ * the new function dm_task_get_info_with_deferred_remove due to the
+ * #define.
+ *
+ * N.B. Keep this function at the end of the file to make sure that
+ * no code in this file accidentally calls it.
+ */
+
+int dm_task_get_info_base(struct dm_task *dmt, struct dm_info *info);
+int dm_task_get_info_base(struct dm_task *dmt, struct dm_info *info)
+{
+	struct dm_info new_info;
+
+	if (!dm_task_get_info(dmt, &new_info))
+		return 0;
+
+	memcpy(info, &new_info, offsetof(struct dm_info, deferred_remove));
+
+	return 1;
+}
+
+int dm_task_get_info_with_deferred_remove(struct dm_task *dmt, struct dm_info *info);
+int dm_task_get_info_with_deferred_remove(struct dm_task *dmt, struct dm_info *info)
+{
+	struct dm_info new_info;
+
+	if (!dm_task_get_info(dmt, &new_info))
+		return 0;
+
+	memcpy(info, &new_info, offsetof(struct dm_info, internal_suspend));
+
+	return 1;
+}
+#endif
--- a/device_mapper/ioctl/libdm-targets.h
+++ b/device_mapper/ioctl/libdm-targets.h
@@ -59,7 +59,6 @@ struct dm_task {
 	int skip_lockfs;
 	int query_inactive_table;
 	int suppress_identical_reload;
-	int skip_reload_params_compare;
 	dm_add_node_t add_node;
 	uint64_t existing_table_size;
 	int cookie_set;
@@ -70,7 +69,6 @@ struct dm_task {
 	int enable_checks;
 	int expected_errno;
 	int ioctl_errno;
-	int ima_measurement;

 	int record_timestamp;

--- a/device_mapper/libdm-common.c
+++ b/device_mapper/libdm-common.c
@@ -338,7 +338,6 @@ struct dm_task *dm_task_create(int type)
 	dmt->new_uuid = 0;
 	dmt->secure_data = 0;
 	dmt->record_timestamp = 0;
-	dmt->ima_measurement = 0;

 	return dmt;
 }
@@ -383,7 +382,7 @@ static int _find_dm_name_of_device(dev_t st_rdev, char *buf, size_t buf_len)
 	}

 	if (closedir(d))
-		log_sys_debug("closedir", _dm_dir);
+		log_sys_error("closedir", _dm_dir);

 	return r;
 }
@@ -513,7 +512,7 @@ int unmangle_string(const char *str, const char *str_name, size_t len,
 	int strict = mode != DM_STRING_MANGLING_NONE;
 	char str_rest[DM_NAME_LEN];
 	size_t i, j;
-	unsigned int code;
+	int code;
 	int r = 0;

 	if (!str || !buf)
@@ -932,7 +931,7 @@ int dm_task_add_target(struct dm_task *dmt, uint64_t start, uint64_t size,

 #ifdef HAVE_SELINUX
 static int _selabel_lookup(const char *path, mode_t mode,
-			   char **scontext)
+			   security_context_t *scontext)
 {
 #ifdef HAVE_SELINUX_LABEL_H
 	if (!_selabel_handle &&
@@ -975,7 +974,7 @@ static int _is_selinux_enabled(void)
 int dm_prepare_selinux_context(const char *path, mode_t mode)
 {
 #ifdef HAVE_SELINUX
-	char *scontext = NULL;
+	security_context_t scontext = NULL;

 	if (_is_selinux_enabled() <= 0)
 		return 1;
@@ -1003,7 +1002,7 @@ int dm_prepare_selinux_context(const char *path, mode_t mode)
 int dm_set_selinux_context(const char *path, mode_t mode)
 {
 #ifdef HAVE_SELINUX
-	char *scontext = NULL;
+	security_context_t scontext = NULL;

 	if (_is_selinux_enabled() <= 0)
 		return 1;
@@ -1225,7 +1224,7 @@ int get_dev_node_read_ahead(const char *dev_name, uint32_t major, uint32_t minor
 	int len;
 	int r = 1;
 	int fd;
-	long read_ahead_long = 0;
+	long read_ahead_long;

 	/*
 	 * If we know the device number, use sysfs if we can.
@@ -1921,7 +1920,7 @@ static int _sysfs_find_kernel_name(uint32_t major, uint32_t minor, char *buf, si
 			continue;

 		if ((sz = dm_snprintf(path, sizeof(path), "%sblock/%s/dev",
-				      _sysfs_dir, name)) < 5) {
+				      _sysfs_dir, name)) == -1) {
 			log_warn("Couldn't create path for %s.", name);
 			continue;
 		}
--- a/device_mapper/libdm-config.c
+++ b/device_mapper/libdm-config.c
@@ -599,7 +599,7 @@ static struct dm_config_node *_section(struct parser *p, struct dm_config_node *
 		match(TOK_IDENTIFIER);
 	}

-	if (!*str) {
+	if (!strlen(str)) {
 		log_error("Parse error at byte %" PRIptrdiff_t " (line %d): empty section identifier",
 			  p->tb - p->fb + 1, p->line);
 		return NULL;
@@ -983,7 +983,7 @@ static const char *_find_config_str(const void *start, node_lookup_fn find_fn,
 	}

 	if (fail)
-		log_very_verbose("%s not found in config: defaulting to \"%s\"",
+		log_very_verbose("%s not found in config: defaulting to %s",
 				 path, fail);
 	return fail;
 }
--- a/device_mapper/libdm-deptree.c
+++ b/device_mapper/libdm-deptree.c
@@ -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 */
@@ -275,16 +274,6 @@ struct load_properties {
 	 */
 	unsigned delay_resume_if_extended;

-	/*
-	 * When comparing table lines to decide if a reload is
-	 * 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,
-	 * causing lvm and the kernel to have differing params.
-	 */
-	unsigned skip_reload_params_compare;
-
 	/*
 	 * Call node_send_messages(), set to 2 if there are messages
 	 * When != 0, it validates matching transaction id, thus thin-pools
@@ -331,7 +320,16 @@ struct dm_tree_node {
 	dm_node_callback_fn callback;
 	void *callback_data;

-	int activated;                  /* tracks activation during preload */
+	/*
+	 * TODO:
+	 *	Add advanced code which tracks of send ioctls and their
+	 *	proper revert operation for more advanced recovery
+	 *	Current code serves mostly only to recovery when
+	 *	thin pool metadata check fails and command would
+	 *	have left active thin data and metadata subvolumes.
+	 */
+	struct dm_list activated;	/* Head of activated nodes for preload revert */
+	struct dm_list activated_list;	/* List of activated nodes for preload revert */
 };

 struct dm_tree {
@@ -366,18 +364,19 @@ struct dm_tree *dm_tree_create(void)
 	dtree->root.dtree = dtree;
 	dm_list_init(&dtree->root.uses);
 	dm_list_init(&dtree->root.used_by);
+	dm_list_init(&dtree->root.activated);
 	dtree->skip_lockfs = 0;
 	dtree->no_flush = 0;
 	dtree->mem = dmem;
 	dtree->optional_uuid_suffixes = NULL;

-	if (!(dtree->devs = dm_hash_create(61))) {
+	if (!(dtree->devs = dm_hash_create(8))) {
 		log_error("dtree hash creation failed");
 		dm_pool_destroy(dtree->mem);
 		return NULL;
 	}

-	if (!(dtree->uuids = dm_hash_create(31))) {
+	if (!(dtree->uuids = dm_hash_create(32))) {
 		log_error("dtree uuid hash creation failed");
 		dm_hash_destroy(dtree->devs);
 		dm_pool_destroy(dtree->mem);
@@ -550,6 +549,7 @@ static struct dm_tree_node *_create_dm_tree_node(struct dm_tree *dtree,

 	dm_list_init(&node->uses);
 	dm_list_init(&node->used_by);
+	dm_list_init(&node->activated);
 	dm_list_init(&node->props.segs);

 	dev = MKDEV(info->major, info->minor);
@@ -605,7 +605,7 @@ 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 (suffix_list && (suffix_position = strrchr(uuid, '-'))) {
+	if (suffix_list && (suffix_position = rindex(uuid, '-'))) {
 		while ((suffix = suffix_list[i++])) {
 			if (strcmp(suffix_position + 1, suffix))
 				continue;
@@ -1579,37 +1579,8 @@ static int _thin_pool_node_message(struct dm_tree_node *dnode, struct thin_messa
 	}

 	if (!_node_message(dnode->info.major, dnode->info.minor,
-			   tm->expected_errno, buf)) {
-		switch (m->type) {
-		case DM_THIN_MESSAGE_CREATE_SNAP:
-		case DM_THIN_MESSAGE_CREATE_THIN:
-			if (errno == EEXIST) {
-				/*
-				 * ATM errno from ioctl() is preserved through code error path chain
-				 * If this would ever change, another way need to be used to
-				 * obtain result from failed DM message
-				 */
-				log_error("Thin pool %s already contain thin device with device_id %u.",
-					  _node_name(dnode), m->u.m_create_snap.device_id);
-				/*
-				 * TODO:
-				 *
-				 * Give some useful advice how to solve this problem,
-				 * until lvconvert --repair can handle this automatically
-				 */
-				log_error("Manual intervention may be required to remove device dev_id=%u in thin pool metadata.",
-					  m->u.m_create_snap.device_id);
-				log_error("Optionally new thin volume with device_id=%u can be manually added into a volume group.",
-					  m->u.m_create_snap.device_id);
-				log_warn("WARNING: When uncertain how to do this, contact support!");
-				return 0;
-			}
-			/* fall through */
-		default:
-			return_0;
-		}
-
-	}
+			   tm->expected_errno, buf))
+		return_0;

 	return 1;
 }
@@ -1656,15 +1627,6 @@ static int _thin_pool_node_send_messages(struct dm_tree_node *dnode,
 	if (!have_messages || !send)
 		return 1; /* transaction_id is matching */

-	if (stp.fail || stp.read_only || stp.needs_check) {
-		log_error("Cannot send messages to thin pool %s%s%s%s.",
-			  _node_name(dnode),
-			  stp.fail ? " in failed state" : "",
-			  stp.read_only ? " with read only metadata" : "",
-			  stp.needs_check ? " which needs check first" : "");
-		return 0;
-	}
-
 	dm_list_iterate_items(tmsg, &seg->thin_messages) {
 		if (!(_thin_pool_node_message(dnode, tmsg)))
 			return_0;
@@ -2126,7 +2088,7 @@ int dm_tree_activate_children(struct dm_tree_node *dnode,
 	return r;
 }

-static int _create_node(struct dm_tree_node *dnode, struct dm_tree_node *parent)
+static int _create_node(struct dm_tree_node *dnode)
 {
 	int r = 0;
 	struct dm_task *dmt;
@@ -2175,15 +2137,38 @@ static int _create_node(struct dm_tree_node *dnode, struct dm_tree_node *parent)
 				  "Unable to get DM task info for %s.",
 				  dnode->name);
 	}
-
-	if (r)
-		dnode->activated = 1;
 out:
 	dm_task_destroy(dmt);

 	return r;
 }

+/*
+ * _remove_node
+ *
+ * This function is only used to remove a DM device that has failed
+ * to load any table.
+ */
+static int _remove_node(struct dm_tree_node *dnode)
+{
+	if (!dnode->info.exists)
+		return 1;
+
+	if (dnode->info.live_table || dnode->info.inactive_table) {
+		log_error(INTERNAL_ERROR
+			  "_remove_node called on device with loaded table(s).");
+		return 0;
+	}
+
+	if (!_deactivate_node(dnode->name, dnode->info.major, dnode->info.minor,
+			      &dnode->dtree->cookie, dnode->udev_flags, 0)) {
+		log_error("Failed to clean-up device with no table: %s.",
+			  _node_name(dnode));
+		return 0;
+	}
+	return 1;
+}
+
 static int _build_dev_string(char *devbuf, size_t bufsize, struct dm_tree_node *node)
 {
 	if (!dm_format_dev(devbuf, bufsize, node->info.major, node->info.minor)) {
@@ -2372,7 +2357,7 @@ static int _mirror_emit_segment_line(struct dm_task *dmt, struct load_segment *s

 	EMIT_PARAMS(pos, " %u ", seg->mirror_area_count);

-	if (!_emit_areas_line(dmt, seg, params, paramsize, &pos))
+	if (_emit_areas_line(dmt, seg, params, paramsize, &pos) <= 0)
 		return_0;

 	if (handle_errors)
@@ -2574,7 +2559,7 @@ static int _raid_emit_segment_line(struct dm_task *dmt, uint32_t major,
 	/* Print number of metadata/data device pairs */
 	EMIT_PARAMS(pos, " %u", area_count);

-	if (!_emit_areas_line(dmt, seg, params, paramsize, &pos))
+	if (_emit_areas_line(dmt, seg, params, paramsize, &pos) <= 0)
 		return_0;

 	return 1;
@@ -2634,7 +2619,7 @@ static int _cache_emit_segment_line(struct dm_task *dmt,
 	EMIT_PARAMS(pos, " %s", name);

 	/* Do not pass migration_threshold 2048 which is default */
-	EMIT_PARAMS(pos, " %u", (seg->policy_argc + ((seg->migration_threshold != 2048) ? 1 : 0)) * 2);
+	EMIT_PARAMS(pos, " %u", (seg->policy_argc + (seg->migration_threshold != 2048) ? 1 : 0) * 2);
 	if (seg->migration_threshold != 2048)
 		    EMIT_PARAMS(pos, " migration_threshold %u", seg->migration_threshold);
 	if (seg->policy_settings)
@@ -2675,10 +2660,6 @@ static int _writecache_emit_segment_line(struct dm_task *dmt,
 		count += 1;
 	if (seg->writecache_settings.nofua_set)
 		count += 1;
-	if (seg->writecache_settings.cleaner_set && seg->writecache_settings.cleaner)
-		count += 1;
-	if (seg->writecache_settings.max_age_set)
-		count += 2;
 	if (seg->writecache_settings.new_key)
 		count += 2;

@@ -2722,14 +2703,6 @@ static int _writecache_emit_segment_line(struct dm_task *dmt,
 		EMIT_PARAMS(pos, " nofua");
 	}

-	if (seg->writecache_settings.cleaner_set && seg->writecache_settings.cleaner) {
-		EMIT_PARAMS(pos, " cleaner");
-	}
-
-	if (seg->writecache_settings.max_age_set) {
-		EMIT_PARAMS(pos, " max_age %u", seg->writecache_settings.max_age);
-	}
-
 	if (seg->writecache_settings.new_key) {
 		EMIT_PARAMS(pos, " %s %s",
 			seg->writecache_settings.new_key,
@@ -2756,7 +2729,7 @@ static int _integrity_emit_segment_line(struct dm_task *dmt,
 	    !_build_dev_string(meta_dev, sizeof(meta_dev), seg->integrity_meta_node))
 		return_0;

-	count = 3; /* block_size, internal_hash, fix_padding options are always passed */
+	count = 1; /* for internal_hash which we always pass in */

 	if (seg->integrity_meta_node)
 		count++;
@@ -2774,17 +2747,18 @@ static int _integrity_emit_segment_line(struct dm_task *dmt,
 		count++;
 	if (set->commit_time_set)
 		count++;
+	if (set->block_size_set)
+		count++;
 	if (set->bitmap_flush_interval_set)
 		count++;
 	if (set->sectors_per_bit_set)
 		count++;

-	EMIT_PARAMS(pos, "%s 0 %u %s %d fix_padding block_size:%u internal_hash:%s",
+	EMIT_PARAMS(pos, "%s 0 %u %s %d internal_hash:%s",
 		    origin_dev,
 		    set->tag_size,
 		    set->mode,
 		    count,
-		    set->block_size,
 		    set->internal_hash);

 	if (seg->integrity_meta_node)
@@ -2808,15 +2782,15 @@ static int _integrity_emit_segment_line(struct dm_task *dmt,
 	if (set->commit_time_set)
 		EMIT_PARAMS(pos, " commit_time:%u", set->commit_time);

+	if (set->block_size_set)
+		EMIT_PARAMS(pos, " block_size:%u", set->block_size);
+
 	if (set->bitmap_flush_interval_set)
 		EMIT_PARAMS(pos, " bitmap_flush_interval:%u", set->bitmap_flush_interval);

 	if (set->sectors_per_bit_set)
 		EMIT_PARAMS(pos, " sectors_per_bit:%llu", (unsigned long long)set->sectors_per_bit);

-	if (!dm_task_secure_data(dmt))
-		stack;
-
 	return 1;
 }

@@ -2866,28 +2840,17 @@ static int _vdo_emit_segment_line(struct dm_task *dmt,
 		return 0;
 	}

-	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 ",
-			    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);
-	}
-
-	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" : "auto", // policy
+		    seg->vdo_name,
 		    seg->vdo_params.max_discard,
 		    seg->vdo_params.ack_threads,
 		    seg->vdo_params.bio_threads,
@@ -2931,6 +2894,7 @@ static int _emit_segment_line(struct dm_task *dmt, uint32_t major,
 			      size_t paramsize)
 {
 	int pos = 0;
+	int r;
 	int target_type_is_raid = 0;
 	char originbuf[DM_FORMAT_DEV_BUFSIZE], cowbuf[DM_FORMAT_DEV_BUFSIZE];

@@ -2941,7 +2905,8 @@ static int _emit_segment_line(struct dm_task *dmt, uint32_t major,
 		break;
 	case SEG_MIRRORED:
 		/* Mirrors are pretty complicated - now in separate function */
-		if (!_mirror_emit_segment_line(dmt, seg, params, paramsize))
+		r = _mirror_emit_segment_line(dmt, seg, params, paramsize);
+		if (!r)
 			return_0;
 		break;
 	case SEG_SNAPSHOT:
@@ -2962,7 +2927,7 @@ 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, seg, params, paramsize))
+		if (!(r = _vdo_emit_segment_line(dmt, seg, params, paramsize)))
 		      return_0;
 		break;
 	case SEG_CRYPT:
@@ -2991,8 +2956,9 @@ static int _emit_segment_line(struct dm_task *dmt, uint32_t major,
 	case SEG_RAID6_LA_6:
 	case SEG_RAID6_RA_6:
 		target_type_is_raid = 1;
-		if (!_raid_emit_segment_line(dmt, major, minor, seg, seg_start,
-					     params, paramsize))
+		r = _raid_emit_segment_line(dmt, major, minor, seg, seg_start,
+					    params, paramsize);
+		if (!r)
 			return_0;

 		break;
@@ -3033,9 +2999,10 @@ static int _emit_segment_line(struct dm_task *dmt, uint32_t major,
 	case SEG_CRYPT:
 	case SEG_LINEAR:
 	case SEG_STRIPED:
-		if (!_emit_areas_line(dmt, seg, params, paramsize, &pos))
-			return_0;
-
+		if ((r = _emit_areas_line(dmt, seg, params, paramsize, &pos)) <= 0) {
+			stack;
+			return r;
+		}
 		if (!params[0]) {
 			log_error("No parameters supplied for %s target "
 				  "%u:%u.", _dm_segtypes[seg->type].target,
@@ -3132,9 +3099,6 @@ static int _load_node(struct dm_tree_node *dnode)
 	if (!dm_task_suppress_identical_reload(dmt))
 		log_warn("WARNING: Failed to suppress reload of identical tables.");

-	if (dnode->props.skip_reload_params_compare)
-		dm_task_skip_reload_params_compare(dmt);
-
 	if ((r = dm_task_run(dmt))) {
 		r = dm_task_get_info(dmt, &dnode->info);
 		if (r && !dnode->info.inactive_table)
@@ -3153,8 +3117,8 @@ static int _load_node(struct dm_tree_node *dnode)
 			if (!existing_table_size && dnode->props.delay_resume_if_new)
 				dnode->props.size_changed = 0;

-			log_debug_activation("Table size changed from %" PRIu64 " to %" PRIu64 " for %s.%s",
-					     existing_table_size,
+			log_debug_activation("Table size changed from %" PRIu64 " to %"
+					     PRIu64 " for %s.%s", existing_table_size,
 					     seg_start, _node_name(dnode),
 					     dnode->props.size_changed ? "" : " (Ignoring.)");

@@ -3180,45 +3144,32 @@ out:
 	return r;
 }

-/* Try to deactivate only nodes created during preload. */
-static int _dm_tree_revert_activated(struct dm_tree_node *dnode)
+/*
+ * Currently try to deactivate only nodes created during preload.
+ * New node is always attached to the front of activated_list
+ */
+static int _dm_tree_revert_activated(struct dm_tree_node *parent)
 {
-	void *handle = NULL;
 	struct dm_tree_node *child;

-	while ((child = dm_tree_next_child(&handle, dnode, 0))) {
-		if (child->activated) {
-			if (child->callback) {
-				log_debug_activation("Dropping callback for %s.", _node_name(child));
-				child->callback = NULL;
-			}
-
-			log_debug_activation("Reverting %s.", _node_name(child));
-			if (!_deactivate_node(child->name, child->info.major, child->info.minor,
-					      &child->dtree->cookie, child->udev_flags, 0)) {
-				log_debug_activation("Unable to deactivate %s.", _node_name(child));
-				return 0;
-			}
+	dm_list_iterate_items_gen(child, &parent->activated, activated_list) {
+		log_debug_activation("Reverting %s.", _node_name(child));
+		if (child->callback) {
+			log_debug_activation("Dropping callback for %s.", _node_name(child));
+			child->callback = NULL;
 		}
-
-		if (dm_tree_node_num_children(child, 0) &&
-		    !_dm_tree_revert_activated(child))
+		if (!_deactivate_node(child->name, child->info.major, child->info.minor,
+				      &child->dtree->cookie, child->udev_flags, 0)) {
+			log_error("Unable to deactivate %s.", _node_name(child));
+			return 0;
+		}
+		if (!_dm_tree_revert_activated(child))
 			return_0;
 	}

 	return 1;
 }

-static int _dm_tree_wait_and_revert_activated(struct dm_tree_node *dnode)
-{
-	if (!dm_udev_wait(dm_tree_get_cookie(dnode)))
-		stack;
-
-	dm_tree_set_cookie(dnode, 0);
-
-	return _dm_tree_revert_activated(dnode);
-}
-
 int dm_tree_preload_children(struct dm_tree_node *dnode,
 			     const char *uuid_prefix,
 			     size_t uuid_prefix_len)
@@ -3248,7 +3199,7 @@ int dm_tree_preload_children(struct dm_tree_node *dnode,
 				return_0;

 		/* FIXME Cope if name exists with no uuid? */
-		if (!child->info.exists && !(node_created = _create_node(child, dnode)))
+		if (!child->info.exists && !(node_created = _create_node(child)))
 			return_0;

 		/* Propagate delayed resume from exteded child node */
@@ -3258,22 +3209,28 @@ int dm_tree_preload_children(struct dm_tree_node *dnode,
 		if (!child->info.inactive_table &&
 		    child->props.segment_count &&
 		    !_load_node(child)) {
-			stack;
 			/*
-			 * If the table load fails, try to device in the kernel
-			 * together with other created and preloaded devices.
+			 * If the table load does not succeed, we remove the
+			 * device in the kernel that would otherwise have an
+			 * empty table.  This makes the create + load of the
+			 * device atomic.  However, if other dependencies have
+			 * already been created and loaded; this code is
+			 * insufficient to remove those - only the node
+			 * encountering the table load failure is removed.
 			 */
-			if (!_dm_tree_wait_and_revert_activated(dnode))
-				stack;
-			r = 0;
-			continue;
+			if (node_created) {
+				if (!_remove_node(child))
+					return_0;
+				if (!dm_udev_wait(dm_tree_get_cookie(dnode)))
+					stack;
+				dm_tree_set_cookie(dnode, 0);
+				(void) _dm_tree_revert_activated(child);
+			}
+			return_0;
 		}

 		/* No resume for a device without parents or with unchanged or smaller size */
-		if (!dm_tree_node_num_children(child, 1))
-			continue;
-
-		if (child->props.size_changed <= 0)
+		if (!dm_tree_node_num_children(child, 1) || (child->props.size_changed <= 0))
 			continue;

 		if (!child->info.inactive_table && !child->info.suspended)
@@ -3284,19 +3241,28 @@ int dm_tree_preload_children(struct dm_tree_node *dnode,
 				  &child->info, &child->dtree->cookie, child->udev_flags,
 				  child->info.suspended)) {
 			log_error("Unable to resume %s.", _node_name(child));
-			if (!_dm_tree_wait_and_revert_activated(dnode))
-				stack;
+			/* If the device was not previously active, we might as well remove this node. */
+			if (!child->info.live_table &&
+			    !_deactivate_node(child->name, child->info.major, child->info.minor,
+					      &child->dtree->cookie, child->udev_flags, 0))
+				log_error("Unable to deactivate %s.", _node_name(child));
 			r = 0;
+			/* Each child is handled independently */
 			continue;
 		}

 		if (node_created) {
+			/* Collect newly introduced devices for revert */
+			dm_list_add_h(&dnode->activated, &child->activated_list);
+
 			/* When creating new node also check transaction_id. */
 			if (child->props.send_messages &&
 			    !_node_send_messages(child, uuid_prefix, uuid_prefix_len, 0)) {
 				stack;
-				if (!_dm_tree_wait_and_revert_activated(dnode))
+				if (!dm_udev_wait(dm_tree_get_cookie(dnode)))
 					stack;
+				dm_tree_set_cookie(dnode, 0);
+				(void) _dm_tree_revert_activated(dnode);
 				r = 0;
 				continue;
 			}
@@ -3878,24 +3844,20 @@ int dm_tree_node_add_integrity_target(struct dm_tree_node *node,
 	if (!(seg = _add_segment(node, SEG_INTEGRITY, size)))
 		return_0;

-	if (!meta_uuid) {
-		log_error("No integrity meta uuid.");
-		return 0;
-	}
+	if (meta_uuid) {
+		if (!(seg->integrity_meta_node = dm_tree_find_node_by_uuid(node->dtree, meta_uuid))) {
+			log_error("Missing integrity's meta uuid %s.", meta_uuid);
+			return 0;
+		}

-	if (!(seg->integrity_meta_node = dm_tree_find_node_by_uuid(node->dtree, meta_uuid))) {
-		log_error("Missing integrity's meta uuid %s.", meta_uuid);
-		return 0;
+		if (!_link_tree_nodes(node, seg->integrity_meta_node))
+			return_0;
 	}

-	if (!_link_tree_nodes(node, seg->integrity_meta_node))
-		return_0;
-
 	if (!(seg->origin = dm_tree_find_node_by_uuid(node->dtree, origin_uuid))) {
 		log_error("Missing integrity's origin uuid %s.", origin_uuid);
 		return 0;
 	}
-
 	if (!_link_tree_nodes(node, seg->origin))
 		return_0;

@@ -3903,8 +3865,6 @@ int dm_tree_node_add_integrity_target(struct dm_tree_node *node,

 	seg->integrity_recalculate = recalculate;

-	node->props.skip_reload_params_compare = 1;
-
 	return 1;
 }

@@ -3981,24 +3941,6 @@ int dm_tree_node_add_thin_pool_target(struct dm_tree_node *node,
 				      uint32_t data_block_size,
 				      uint64_t low_water_mark,
 				      unsigned skip_block_zeroing)
-{
-	return dm_tree_node_add_thin_pool_target_v1(node, size, transaction_id,
-						    metadata_uuid, pool_uuid,
-						    data_block_size,
-						    low_water_mark,
-						    skip_block_zeroing,
-						    1);
-}
-
-int dm_tree_node_add_thin_pool_target_v1(struct dm_tree_node *node,
-					 uint64_t size,
-					 uint64_t transaction_id,
-					 const char *metadata_uuid,
-					 const char *pool_uuid,
-					 uint32_t data_block_size,
-					 uint64_t low_water_mark,
-					 unsigned skip_block_zeroing,
-					 unsigned crop_metadata)
 {
 	struct load_segment *seg, *mseg;
 	uint64_t devsize = 0;
@@ -4026,18 +3968,17 @@ int dm_tree_node_add_thin_pool_target_v1(struct dm_tree_node *node,
 	if (!_link_tree_nodes(node, seg->metadata))
 		return_0;

-	if (crop_metadata)
-		/* FIXME: more complex target may need more tweaks */
-		dm_list_iterate_items(mseg, &seg->metadata->props.segs) {
-			devsize += mseg->size;
-			if (devsize > DM_THIN_MAX_METADATA_SIZE) {
-				log_debug_activation("Ignoring %" PRIu64 " of device.",
-						     devsize - DM_THIN_MAX_METADATA_SIZE);
-				mseg->size -= (devsize - DM_THIN_MAX_METADATA_SIZE);
-				devsize = DM_THIN_MAX_METADATA_SIZE;
-				/* FIXME: drop remaining segs */
-			}
+	/* FIXME: more complex target may need more tweaks */
+	dm_list_iterate_items(mseg, &seg->metadata->props.segs) {
+		devsize += mseg->size;
+		if (devsize > DM_THIN_MAX_METADATA_SIZE) {
+			log_debug_activation("Ignoring %" PRIu64 " of device.",
+					     devsize - DM_THIN_MAX_METADATA_SIZE);
+			mseg->size -= (devsize - DM_THIN_MAX_METADATA_SIZE);
+			devsize = DM_THIN_MAX_METADATA_SIZE;
+			/* FIXME: drop remaining segs */
 		}
+	}

 	if (!(seg->pool = dm_tree_find_node_by_uuid(node->dtree, pool_uuid))) {
 		log_error("Missing pool uuid %s.", pool_uuid);
@@ -4332,10 +4273,63 @@ void dm_tree_node_set_callback(struct dm_tree_node *dnode,
 	dnode->callback_data = data;
 }

+#if defined(__GNUC__)
+/*
+ * Backward compatible implementations.
+ *
+ * Keep these at the end of the file to make sure that
+ * no code in this file accidentally calls it.
+ */
+
+/* Backward compatible dm_tree_node_size_changed() implementations. */
+int dm_tree_node_size_changed_base(const struct dm_tree_node *dnode);
+int dm_tree_node_size_changed_base(const struct dm_tree_node *dnode)
+{
+	/* Base does not make difference between smaller and bigger */
+	return dm_tree_node_size_changed(dnode) ? 1 : 0;
+}
+
+/*
+ * Retain ABI compatibility after adding the DM_CACHE_FEATURE_METADATA2
+ * in version 1.02.138.
+ *
+ * Binaries compiled against version 1.02.138 onwards will use
+ * the new function dm_tree_node_add_cache_target which detects unknown
+ * feature flags and returns error for them.
+ */
+int dm_tree_node_add_cache_target_base(struct dm_tree_node *node,
+				       uint64_t size,
+				       uint64_t feature_flags, /* DM_CACHE_FEATURE_* */
+				       const char *metadata_uuid,
+				       const char *data_uuid,
+				       const char *origin_uuid,
+				       const char *policy_name,
+				       const struct dm_config_node *policy_settings,
+				       uint32_t data_block_size);
+int dm_tree_node_add_cache_target_base(struct dm_tree_node *node,
+				       uint64_t size,
+				       uint64_t feature_flags,
+				       const char *metadata_uuid,
+				       const char *data_uuid,
+				       const char *origin_uuid,
+				       const char *policy_name,
+				       const struct dm_config_node *policy_settings,
+				       uint32_t data_block_size)
+{
+	/* Old version supported only these FEATURE bits, others were ignored so masked them */
+	static const uint64_t _mask =
+		DM_CACHE_FEATURE_WRITEBACK |
+		DM_CACHE_FEATURE_WRITETHROUGH |
+		DM_CACHE_FEATURE_PASSTHROUGH;
+
+	return dm_tree_node_add_cache_target(node, size, feature_flags & _mask,
+					     metadata_uuid, data_uuid, origin_uuid,
+					     policy_name, policy_settings, 0, 0, 0, 0, data_block_size);
+}
+#endif
+
 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,
 				const struct dm_vdo_target_params *vtp)
@@ -4356,9 +4350,8 @@ 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_name = node->name;
 	seg->vdo_data_size = data_size;

 	node->props.send_messages = 2;
--- a/device_mapper/libdm-file.c
+++ b/device_mapper/libdm-file.c
@@ -110,7 +110,7 @@ int dm_is_empty_dir(const char *dir)
 	DIR *d;

 	if (!(d = opendir(dir))) {
-		log_sys_debug("opendir", dir);
+		log_sys_error("opendir", dir);
 		return 0;
 	}

@@ -119,7 +119,7 @@ int dm_is_empty_dir(const char *dir)
 			break;

 	if (closedir(d))
-		log_sys_debug("closedir", dir);
+		log_sys_error("closedir", dir);

 	return dirent ? 0 : 1;
 }
--- a/device_mapper/libdm-report.c
+++ b/device_mapper/libdm-report.c
@@ -384,246 +384,172 @@ int dm_report_field_percent(struct dm_report *rh,
 	return 1;
 }

-struct pos_len {
+struct str_list_sort_value_item {
 	unsigned pos;
 	size_t len;
 };

-struct str_pos_len {
-	const char *str;
-	struct pos_len item;
-};
-
 struct str_list_sort_value {
 	const char *value;
-	struct pos_len *items;
+	struct str_list_sort_value_item *items;
 };

-static int _str_sort_cmp(const void *a, const void *b)
-{
-	return strcmp(((const struct str_pos_len *) a)->str, ((const struct str_pos_len *) b)->str);
-}
+struct str_list_sort_item {
+	const char *str;
+	struct str_list_sort_value_item item;
+};

-#define FIELD_STRING_LIST_DEFAULT_DELIMITER ","
+static int _str_list_sort_item_cmp(const void *a, const void *b)
+{
+	const struct str_list_sort_item *slsi_a = (const struct str_list_sort_item *) a;
+	const struct str_list_sort_item *slsi_b = (const struct str_list_sort_item *) b;
+
+	return strcmp(slsi_a->str, slsi_b->str);
+}

 static int _report_field_string_list(struct dm_report *rh,
 				     struct dm_report_field *field,
 				     const struct dm_list *data,
 				     const char *delimiter,
-				     int sort_repstr)
+				     int sort)
 {
-	static const char _error_msg_prefix[] = "_report_field_string_list: ";
-	unsigned int list_size, i, pos;
-	struct str_pos_len *arr = NULL;
+	static const char _string_list_grow_object_failed_msg[] = "dm_report_field_string_list: dm_pool_grow_object_failed";
+	struct str_list_sort_value *sort_value = NULL;
+	unsigned int list_size, pos, i;
+	struct str_list_sort_item *arr = NULL;
 	struct dm_str_list *sl;
-	size_t delimiter_len, repstr_str_len, repstr_size;
-	char *repstr = NULL;
-	struct pos_len *repstr_extra;
-	struct str_list_sort_value *sortval = NULL;
+	size_t delimiter_len, len;
+	void *object;
 	int r = 0;

-	/*
-	 * The 'field->report_string' has 2 parts:
-	 *
-	 *    - string representing the whole string list
-	 *      (terminated by '\0' at its end as usual)
-	 *
-	 *    - extra info beyond the end of the string representing
-	 *      position and length of each list item within the
-	 *      field->report_string (array of 'struct pos_len')
-	 *
-	 * We can use the extra info to unambiguously identify list items,
-	 * the delimiter is not enough here as it's not assured it won't appear
-	 * in list item itself. We will make use of this extra info in case
-	 * we need to apply further formatting to the list in dm_report_output
-	 * where the pure field->report_string is not enough for printout.
-	 *
-	 *
-	 * The 'field->sort_value' contains a value of type 'struct
-	 * str_list_sort_value' ('sortval'). This one has a pointer to the
-	 * 'field->report_string' string ('sortval->value') and info
-	 * about position and length of each list item within the string
-	 * (array of 'struct pos_len').
-	 *
-	 *
-	 * The 'field->report_string' is either in sorted or unsorted form,
-	 * depending on 'sort_repstr' arg.
-	 *
-	 * The 'field->sort_value.items' is always in sorted form because
-	 * we need that for effective sorting and selection.
-	 *
-	 * If 'field->report_string' is sorted, then field->report_string
-	 * and field->sort_value.items share the same array of
-	 * 'struct pos_len' (because they're both sorted the same way),
-	 * otherwise, each one has its own array.
-	 *
-	 * The very first item in the array of 'struct pos_len' is always
-	 * a pair denoting '[list_size,strlen(field->report_string)]'. The
-	 * rest of items denote start and lenght of each item in the list.
-         *
-	 *
-	 * For example, if we have a list with "abc", "xy", "defgh"
-	 * as input and delimiter is ",", we end up with either:
-	 *
-	 *  A) if we don't want the report string sorted ('sort_repstr == 0'):
-	 *
-	 *    - field->report_string = repstr
-	 *
-	 *       repstr      repstr_extra
-	 *         |             |
-	 *         V             V
-	 *         abc,xy,defgh\0{[3,12],[0,3],[4,2],[7,5]}
-	 *         |____________||________________________|
-	 *             string     array of struct pos_len
-	 *                        |____||________________|
-	 *                        #items      items
-	 *
-	 *    - field->sort_value = sortval
-	 *
-	 *       sortval->value = repstr
-	 *       sortval->items = {[3,12],[0,3],[7,5],[4,2]}
-	 *                         (that is 'abc,defgh,xy')
-	 *
-	 *
-	 *  B) if we want the report string sorted ('sort_repstr == 1'):
-	 *
-	 *    - field->report_string = repstr
-	 *
-	 *       repstr     repstr_extra
-	 *         |             |
-	 *         V             V
-	 *         abc,defgh,xy\0{[3,12],[0,3],[4,5],[10,2]}
-	 *         |____________||________________________|
-	 *             string     array of struct pos_len
-	 *                        |____||________________|
-	 *                        #items      items
-	 *
-	 *     - field->sort_value = sortval
-	 *
-	 *       sortval->value = repstr
-	 *       sortval->items = repstr_extra
-	 *                       (that is 'abc,defgh,xy')
-	 */
-
-	if (!delimiter)
-		delimiter = FIELD_STRING_LIST_DEFAULT_DELIMITER;
-	delimiter_len = strlen(delimiter);
-	list_size = dm_list_size(data);
-
-	if (!(sortval = dm_pool_alloc(rh->mem, sizeof(struct str_list_sort_value)))) {
-		log_error("%s failed to allocate sort value structure", _error_msg_prefix);
-		goto out;
+	if (!(sort_value = dm_pool_zalloc(rh->mem, sizeof(struct str_list_sort_value)))) {
+		log_error("dm_report_field_string_list: dm_pool_zalloc failed for sort_value");
+		return 0;
 	}

+	list_size = dm_list_size(data);
+
+	/*
+	 * Sort value stores the pointer to the report_string and then
+	 * position and length for each list element withing the report_string.
+	 * The first element stores number of elements in 'len' (therefore
+	 * list_size + 1 is used below for the extra element).
+	 * For example, with this input:
+	 *   sort = 0;  (we don't want to report sorted)
+	 *   report_string = "abc,xy,defgh";  (this is reported)
+	 *
+	 * ...we end up with:
+	 *   sort_value->value = report_string; (we'll use the original report_string for indices)
+	 *   sort_value->items[0] = {0,3};  (we have 3 items)
+	 *   sort_value->items[1] = {0,3};  ("abc")
+	 *   sort_value->items[2] = {7,5};  ("defgh")
+	 *   sort_value->items[3] = {4,2};  ("xy")
+	 *
+	 *   The items alone are always sorted while in report_string they can be
+	 *   sorted or not (based on "sort" arg) - it depends on how we prefer to
+	 *   display the list. Having items sorted internally helps with searching
+	 *   through them.
+	 */
+	if (!(sort_value->items = dm_pool_zalloc(rh->mem, (list_size + 1) * sizeof(struct str_list_sort_value_item)))) {
+		log_error("dm_report_fiel_string_list: dm_pool_zalloc failed for sort value items");
+		goto out;
+	}
+	sort_value->items[0].len = list_size;
+
 	/* zero items */
-	if (list_size == 0) {
-		field->report_string = sortval->value = "";
-		sortval->items = NULL;
-		field->sort_value = sortval;
+	if (!list_size) {
+		sort_value->value = field->report_string = "";
+		field->sort_value = sort_value;
 		return 1;
 	}

 	/* one item */
 	if (list_size == 1) {
 		sl = (struct dm_str_list *) dm_list_first(data);
-
-		repstr_str_len = strlen(sl->str);
-		repstr_size = repstr_str_len + 1 + (2 * sizeof(struct pos_len));
-
-		if (!(repstr = dm_pool_alloc(rh->mem, repstr_size))) {
-			log_error("%s failed to allocate report string structure", _error_msg_prefix);
+		if (!sl ||
+		    !(sort_value->value = field->report_string = dm_pool_strdup(rh->mem, sl->str))) {
+			log_error("dm_report_field_string_list: dm_pool_strdup failed");
 			goto out;
 		}
-		repstr_extra = (struct pos_len *) (repstr + repstr_str_len + 1);
-
-		memcpy(repstr, sl->str, repstr_str_len + 1);
-		memcpy(repstr_extra, &((struct pos_len) {.pos = 1, .len = repstr_str_len}), sizeof(struct pos_len));
-		memcpy(repstr_extra + 1, &((struct pos_len) {.pos = 0, .len = repstr_str_len}), sizeof(struct pos_len));
-
-		sortval->value = field->report_string = repstr;
-		sortval->items = repstr_extra;
-		field->sort_value = sortval;
+		sort_value->items[1].pos = 0;
+		sort_value->items[1].len = strlen(sl->str);
+		field->sort_value = sort_value;
 		return 1;
 	}

-	/* more than one item - allocate temporary array for string list items for further processing */
-	if (!(arr = malloc(list_size * sizeof(struct str_pos_len)))) {
-		log_error("%s failed to allocate temporary array for processing", _error_msg_prefix);
+	/* more than one item - sort the list */
+	if (!(arr = malloc(sizeof(struct str_list_sort_item) * list_size))) {
+		log_error("dm_report_field_string_list: malloc failed");
 		goto out;
 	}

-	i = 0;
-	repstr_size = 0;
+	if (!(dm_pool_begin_object(rh->mem, 256))) {
+		log_error(_string_list_grow_object_failed_msg);
+		goto out;
+	}
+
+	if (!delimiter)
+		delimiter = ",";
+	delimiter_len = strlen(delimiter);
+
+	i = pos = len = 0;
 	dm_list_iterate_items(sl, data) {
 		arr[i].str = sl->str;
-		repstr_size += (arr[i].item.len = strlen(sl->str));
+		if (!sort) {
+			/* sorted outpud not required - report the list as it is */
+			len = strlen(sl->str);
+			if (!dm_pool_grow_object(rh->mem, arr[i].str, len) ||
+			    (i+1 != list_size && !dm_pool_grow_object(rh->mem, delimiter, delimiter_len))) {
+				log_error(_string_list_grow_object_failed_msg);
+				goto out;
+			}
+			arr[i].item.pos = pos;
+			arr[i].item.len = len;
+			pos = i+1 == list_size ? pos+len : pos+len+delimiter_len;
+		}
 		i++;
 	}

-	/*
-	 * At this point, repstr_size contains sum of lengths of all string list items.
-	 * Now, add these to the repstr_size:
-	 *
-	 * 	--> sum of character count used by all delimiters: + ((list_size - 1) * delimiter_len)
-	 *
-	 * 	--> '\0' used at the end of the string list: + 1
-	 *
-	 * 	--> sum of structures used to keep info about pos and length of each string list item:
-	 * 	    [0, <list_size>] [<pos1>,<size1>] [<pos2>,<size2>] ...
-	 * 	    That is: + ((list_size + 1) * sizeof(struct pos_len))
-	 */
-	repstr_size += ((list_size - 1) * delimiter_len);
-	repstr_str_len = repstr_size;
-	repstr_size += 1 + ((list_size + 1) * sizeof(struct pos_len));
+	qsort(arr, i, sizeof(struct str_list_sort_item), _str_list_sort_item_cmp);

-	if (sort_repstr)
-		qsort(arr, list_size, sizeof(struct str_pos_len), _str_sort_cmp);
+	for (i = 0, pos = 0; i < list_size; i++) {
+		if (sort) {
+			/* sorted output required - report the list as sorted */
+			len = strlen(arr[i].str);
+			if (!dm_pool_grow_object(rh->mem, arr[i].str, len) ||
+			    (i+1 != list_size && !dm_pool_grow_object(rh->mem, delimiter, delimiter_len))) {
+				log_error(_string_list_grow_object_failed_msg);
+				goto out;
+			}
+			/*
+			 * Save position and length of the string
+			 * element in report_string for sort_value.
+			 * Use i+1 here since items[0] stores list size!!!
+			 */
+			sort_value->items[i+1].pos = pos;
+			sort_value->items[i+1].len = len;
+			pos = i+1 == list_size ? pos+len : pos+len+delimiter_len;
+		} else {
+			sort_value->items[i+1].pos = arr[i].item.pos;
+			sort_value->items[i+1].len = arr[i].item.len;
+		}
+	}

-	if (!(repstr = dm_pool_alloc(rh->mem, repstr_size))) {
-		log_error("%s failed to allocate report string structure", _error_msg_prefix);
+	if (!dm_pool_grow_object(rh->mem, "\0", 1)) {
+		log_error(_string_list_grow_object_failed_msg);
 		goto out;
 	}
-	repstr_extra = (struct pos_len *) (repstr + repstr_str_len + 1);

-	memcpy(repstr_extra, &(struct pos_len) {.pos = list_size, .len = repstr_str_len}, sizeof(struct pos_len));
-	for (i = 0, pos = 0; i < list_size; i++) {
-		arr[i].item.pos = pos;
-
-		memcpy(repstr + pos, arr[i].str, arr[i].item.len);
-		memcpy(repstr_extra + i + 1, &arr[i].item, sizeof(struct pos_len));
-
-		pos += arr[i].item.len;
-		if (i + 1 < list_size) {
-			memcpy(repstr + pos, delimiter, delimiter_len);
-			pos += delimiter_len;
-		}
-	}
-	*(repstr + pos) = '\0';
-
-	sortval->value = repstr;
-	if (sort_repstr)
-		sortval->items = repstr_extra;
-	else {
-		if (!(sortval->items = dm_pool_alloc(rh->mem, (list_size + 1) * sizeof(struct pos_len)))) {
-			log_error("%s failed to allocate array of items inside sort value structure",
-				  _error_msg_prefix);
-			goto out;
-		}
-
-		qsort(arr, list_size, sizeof(struct str_pos_len), _str_sort_cmp);
-
-		sortval->items[0] = (struct pos_len) {.pos = list_size, .len = repstr_str_len};
-		for (i = 0; i < list_size; i++)
-			sortval->items[i+1] = arr[i].item;
-	}
-
-	field->report_string = repstr;
-	field->sort_value = sortval;
+	object = dm_pool_end_object(rh->mem);
+	sort_value->value = object;
+	field->sort_value = sort_value;
+	field->report_string = object;
 	r = 1;
 out:
-	if (!r && sortval)
-		dm_pool_free(rh->mem, sortval);
+	if (!r && sort_value)
+		dm_pool_free(rh->mem, sort_value);
 	free(arr);
+
 	return r;
 }

@@ -823,11 +749,10 @@ static void _display_fields_more(struct dm_report *rh,
 			id_len = strlen(type->prefix) + 3;

 	for (f = 0; fields[f].report_fn; f++) {
-		if (!(type = _find_type(rh, fields[f].type))) {
-			log_debug(INTERNAL_ERROR "Field type undefined.");
-			continue;
-		}
-		desc = (type->desc) ? : " ";
+		if ((type = _find_type(rh, fields[f].type)) && type->desc)
+			desc = type->desc;
+		else
+			desc = " ";
 		if (desc != last_desc) {
 			if (*last_desc)
 				log_warn(" ");
@@ -1762,7 +1687,7 @@ static int _cmp_field_string_list_strict_all(const struct str_list_sort_value *v
 	struct dm_str_list *sel_item;
 	unsigned int i = 1;

-	if (!val->items) {
+	if (!val->items[0].len) {
 		if (sel_list_size == 1) {
 			/* match blank string list with selection defined as blank string only */
 			sel_item = dm_list_item(dm_list_first(&sel->str_list.list), struct dm_str_list);
@@ -1772,7 +1697,7 @@ static int _cmp_field_string_list_strict_all(const struct str_list_sort_value *v
 	}

 	/* if item count differs, it's clear the lists do not match */
-	if (val->items[0].pos != sel_list_size)
+	if (val->items[0].len != sel_list_size)
 		return 0;

 	/* both lists are sorted so they either match 1:1 or not */
@@ -1795,7 +1720,7 @@ static int _cmp_field_string_list_subset_all(const struct str_list_sort_value *v
 	unsigned int i, last_found = 1;
 	int r = 0;

-	if (!val->items) {
+	if (!val->items[0].len) {
 		if (sel_list_size == 1) {
 			/* match blank string list with selection defined as blank string only */
 			sel_item = dm_list_item(dm_list_first(&sel->str_list.list), struct dm_str_list);
@@ -1807,7 +1732,7 @@ static int _cmp_field_string_list_subset_all(const struct str_list_sort_value *v
 	/* check selection is a subset of the value */
 	dm_list_iterate_items(sel_item, &sel->str_list.list) {
 		r = 0;
-		for (i = last_found; i <= val->items[0].pos; i++) {
+		for (i = last_found; i <= val->items[0].len; i++) {
 			if ((strlen(sel_item->str) == val->items[i].len) &&
 			    !strncmp(sel_item->str, val->value + val->items[i].pos, val->items[i].len)) {
 				last_found = i;
@@ -1829,7 +1754,7 @@ static int _cmp_field_string_list_any(const struct str_list_sort_value *val,
 	unsigned int i;

 	/* match blank string list with selection that contains blank string */
-	if (!val->items) {
+	if (!val->items[0].len) {
 		dm_list_iterate_items(sel_item, &sel->str_list.list) {
 			if (!strcmp(sel_item->str, ""))
 				return 1;
@@ -1842,7 +1767,7 @@ static int _cmp_field_string_list_any(const struct str_list_sort_value *val,
 		 * TODO: Optimize this so we don't need to compare the whole lists' content.
 		 *       Make use of the fact that the lists are sorted!
 		 */
-		for (i = 1; i <= val->items[0].pos; i++) {
+		for (i = 1; i <= val->items[0].len; i++) {
 			if ((strlen(sel_item->str) == val->items[i].len) &&
 			    !strncmp(sel_item->str, val->value + val->items[i].pos, val->items[i].len))
 				return 1;
@@ -2406,7 +2331,7 @@ static const char *_reserved_name(struct dm_report *rh,
 				  uint32_t field_num, const char *s, size_t len)
 {
 	dm_report_reserved_handler handler;
-	const char *canonical_name = NULL;
+	const char *canonical_name;
 	const char **name;
 	char *tmp_s;
 	char c;
@@ -2548,7 +2473,7 @@ dm_percent_t dm_make_percent(uint64_t numerator, uint64_t denominator)

 int dm_report_value_cache_set(struct dm_report *rh, const char *name, const void *data)
 {
-	if (!rh->value_cache && (!(rh->value_cache = dm_hash_create(63)))) {
+	if (!rh->value_cache && (!(rh->value_cache = dm_hash_create(64)))) {
 		log_error("Failed to create cache for values used during reporting.");
 		return 0;
 	}
@@ -3848,7 +3773,7 @@ static struct selection_node *_parse_selection(struct dm_report *rh,
 	struct field_selection *fs;
 	struct selection_node *sn;
 	const char *ws, *we; /* field name */
-	const char *vs = NULL, *ve = NULL; /* value */
+	const char *vs, *ve; /* value */
 	const char *last;
 	uint32_t flags, field_num;
 	int implicit;
@@ -3984,7 +3909,7 @@ static struct selection_node *_parse_ex(struct dm_report *rh,
 	static const char _pe_expected_msg[] = "Syntax error: right parenthesis expected at \'%s\'";
 	struct selection_node *sn = NULL;
 	uint32_t t;
-	const char *tmp = NULL;
+	const char *tmp;

 	t = _tok_op_log(s, next, SEL_MODIFIER_NOT | SEL_PRECEDENCE_PS);
 	if (t == SEL_MODIFIER_NOT) {
@@ -4030,7 +3955,7 @@ static struct selection_node *_parse_and_ex(struct dm_report *rh,
 					    struct selection_node *and_sn)
 {
 	struct selection_node *n;
-	const char *tmp = NULL;
+	const char *tmp;

 	n = _parse_ex(rh, s, next);
 	if (!n)
@@ -4062,7 +3987,7 @@ static struct selection_node *_parse_or_ex(struct dm_report *rh,
 					   struct selection_node *or_sn)
 {
 	struct selection_node *n;
-	const char *tmp = NULL;
+	const char *tmp;

 	n = _parse_and_ex(rh, s, next, NULL);
 	if (!n)
@@ -4434,7 +4359,6 @@ static int _sort_rows(struct dm_report *rh)
 #define JSON_ARRAY_START       "["
 #define JSON_ARRAY_END         "]"
 #define JSON_ESCAPE_CHAR       "\\"
-#define JSON_NULL              "null"

 #define UNABLE_TO_EXTEND_OUTPUT_LINE_MSG "dm_report: Unable to extend output line"

@@ -4444,42 +4368,38 @@ static int _is_basic_report(struct dm_report *rh)
 	       (rh->group_item->group->type == DM_REPORT_GROUP_BASIC);
 }

-static int _is_json_std_report(struct dm_report *rh)
-{
-	return rh->group_item &&
-	       rh->group_item->group->type == DM_REPORT_GROUP_JSON_STD;
-}
-
 static int _is_json_report(struct dm_report *rh)
 {
 	return rh->group_item &&
-	       (rh->group_item->group->type == DM_REPORT_GROUP_JSON ||
-		rh->group_item->group->type == DM_REPORT_GROUP_JSON_STD);
+	       (rh->group_item->group->type == DM_REPORT_GROUP_JSON);
 }

-static int _is_pure_numeric_field(struct dm_report_field *field)
-{
-	return field->props->flags & (DM_REPORT_FIELD_TYPE_NUMBER | DM_REPORT_FIELD_TYPE_PERCENT);
-}
-
-static const char *_get_field_id(struct dm_report *rh, struct dm_report_field *field)
+/*
+ * Produce report output
+ */
+static int _output_field(struct dm_report *rh, struct dm_report_field *field)
 {
 	const struct dm_report_field_type *fields = field->props->implicit ? _implicit_report_fields
 									   : rh->fields;
-
-	return fields[field->props->field_num].id;
-}
-
-static int _output_field_basic_fmt(struct dm_report *rh, struct dm_report_field *field)
-{
 	char *field_id;
 	int32_t width;
 	uint32_t align;
+	const char *repstr;
+	const char *p1_repstr, *p2_repstr;
 	char *buf = NULL;
 	size_t buf_size = 0;

-	if (rh->flags & DM_REPORT_OUTPUT_FIELD_NAME_PREFIX) {
-		if (!(field_id = strdup(_get_field_id(rh, field)))) {
+	if (_is_json_report(rh)) {
+		if (!dm_pool_grow_object(rh->mem, JSON_QUOTE, 1) ||
+		    !dm_pool_grow_object(rh->mem, fields[field->props->field_num].id, 0) ||
+		    !dm_pool_grow_object(rh->mem, JSON_QUOTE, 1) ||
+		    !dm_pool_grow_object(rh->mem, JSON_PAIR, 1) ||
+		    !dm_pool_grow_object(rh->mem, JSON_QUOTE, 1)) {
+			log_error("dm_report: Unable to extend output line");
+			return 0;
+		}
+	} else if (rh->flags & DM_REPORT_OUTPUT_FIELD_NAME_PREFIX) {
+		if (!(field_id = strdup(fields[field->props->field_num].id))) {
 			log_error("dm_report: Failed to copy field name");
 			return 0;
 		}
@@ -4510,14 +4430,43 @@ static int _output_field_basic_fmt(struct dm_report *rh, struct dm_report_field
 		}
 	}

-	if (rh->flags & DM_REPORT_OUTPUT_ALIGNED) {
+	repstr = field->report_string;
+	width = field->props->width;
+	if (!(rh->flags & DM_REPORT_OUTPUT_ALIGNED)) {
+		if (_is_json_report(rh)) {
+			/* Escape any JSON_QUOTE that may appear in reported string. */
+			p1_repstr = repstr;
+			while ((p2_repstr = strstr(p1_repstr, JSON_QUOTE))) {
+				if (p2_repstr > p1_repstr) {
+					if (!dm_pool_grow_object(rh->mem, p1_repstr, p2_repstr - p1_repstr)) {
+						log_error(UNABLE_TO_EXTEND_OUTPUT_LINE_MSG);
+						return 0;
+					}
+				}
+				if (!dm_pool_grow_object(rh->mem, JSON_ESCAPE_CHAR, 1) ||
+				    !dm_pool_grow_object(rh->mem, JSON_QUOTE, 1)) {
+					log_error(UNABLE_TO_EXTEND_OUTPUT_LINE_MSG);
+					return 0;
+				}
+				p1_repstr = p2_repstr + 1;
+			}
+
+			if (!dm_pool_grow_object(rh->mem, p1_repstr, 0)) {
+				log_error(UNABLE_TO_EXTEND_OUTPUT_LINE_MSG);
+				return 0;
+			}
+		} else {
+			if (!dm_pool_grow_object(rh->mem, repstr, 0)) {
+				log_error(UNABLE_TO_EXTEND_OUTPUT_LINE_MSG);
+				return 0;
+			}
+		}
+	} else {
 		if (!(align = field->props->flags & DM_REPORT_FIELD_ALIGN_MASK))
 			align = ((field->props->flags & DM_REPORT_FIELD_TYPE_NUMBER) ||
-				 (field->props->flags & DM_REPORT_FIELD_TYPE_SIZE)) ?
+				 (field->props->flags & DM_REPORT_FIELD_TYPE_SIZE)) ? 
 				DM_REPORT_FIELD_ALIGN_RIGHT : DM_REPORT_FIELD_ALIGN_LEFT;

-		width = field->props->width;
-
 		/* Including trailing '\0'! */
 		buf_size = width + 1;
 		if (!(buf = malloc(buf_size))) {
@@ -4527,7 +4476,7 @@ static int _output_field_basic_fmt(struct dm_report *rh, struct dm_report_field

 		if (align & DM_REPORT_FIELD_ALIGN_LEFT) {
 			if (dm_snprintf(buf, buf_size, "%-*.*s",
-					 width, width, field->report_string) < 0) {
+					 width, width, repstr) < 0) {
 				log_error("dm_report: left-aligned snprintf() failed");
 				goto bad;
 			}
@@ -4537,7 +4486,7 @@ static int _output_field_basic_fmt(struct dm_report *rh, struct dm_report_field
 			}
 		} else if (align & DM_REPORT_FIELD_ALIGN_RIGHT) {
 			if (dm_snprintf(buf, buf_size, "%*.*s",
-					 width, width, field->report_string) < 0) {
+					 width, width, repstr) < 0) {
 				log_error("dm_report: right-aligned snprintf() failed");
 				goto bad;
 			}
@@ -4546,11 +4495,6 @@ static int _output_field_basic_fmt(struct dm_report *rh, struct dm_report_field
 				goto bad;
 			}
 		}
-	} else {
-		if (!dm_pool_grow_object(rh->mem, field->report_string, 0)) {
-			log_error(UNABLE_TO_EXTEND_OUTPUT_LINE_MSG);
-			return 0;
-		}
 	}

 	if (rh->flags & DM_REPORT_OUTPUT_FIELD_NAME_PREFIX) {
@@ -4560,164 +4504,21 @@ static int _output_field_basic_fmt(struct dm_report *rh, struct dm_report_field
 				goto bad;
 			}
 		}
+	} else if (_is_json_report(rh)) {
+		if (!dm_pool_grow_object(rh->mem, JSON_QUOTE, 1)) {
+			log_error(UNABLE_TO_EXTEND_OUTPUT_LINE_MSG);
+			goto bad;
+		}
 	}

 	free(buf);
 	return 1;
+
 bad:
 	free(buf);
 	return 0;
 }

-static int _safe_repstr_output(struct dm_report *rh, const char *repstr, size_t len)
-{
-	const char *p_repstr;
-	const char *repstr_end = len ? repstr + len : repstr + strlen(repstr);
-
-	/* Escape any JSON_QUOTE that may appear in reported string. */
-	while (1) {
-		if (!(p_repstr = memchr(repstr, JSON_QUOTE[0], repstr_end - repstr)))
-			break;
-
-		if (p_repstr > repstr) {
-			if (!dm_pool_grow_object(rh->mem, repstr, p_repstr - repstr)) {
-				log_error(UNABLE_TO_EXTEND_OUTPUT_LINE_MSG);
-				return 0;
-			}
-		}
-		if (!dm_pool_grow_object(rh->mem, JSON_ESCAPE_CHAR, 1) ||
-		    !dm_pool_grow_object(rh->mem, JSON_QUOTE, 1)) {
-			log_error(UNABLE_TO_EXTEND_OUTPUT_LINE_MSG);
-			return 0;
-		}
-		repstr = p_repstr + 1;
-	}
-
-	if (!dm_pool_grow_object(rh->mem, repstr, repstr_end - repstr)) {
-		log_error(UNABLE_TO_EXTEND_OUTPUT_LINE_MSG);
-		return 0;
-	}
-
-	return 1;
-}
-
-static int _output_field_json_fmt(struct dm_report *rh, struct dm_report_field *field)
-{
-	const char *repstr;
-	size_t list_size, i;
-	struct pos_len *pos_len;
-
-	if (!dm_pool_grow_object(rh->mem, JSON_QUOTE, 1) ||
-	    !dm_pool_grow_object(rh->mem, _get_field_id(rh, field),  0) ||
-	    !dm_pool_grow_object(rh->mem, JSON_QUOTE, 1) ||
-	    !dm_pool_grow_object(rh->mem, JSON_PAIR, 1)) {
-		log_error(UNABLE_TO_EXTEND_OUTPUT_LINE_MSG);
-		return 0;
-	}
-
-	if (field->props->flags & DM_REPORT_FIELD_TYPE_STRING_LIST) {
-		if (!_is_json_std_report(rh)) {
-
-			/* string list in JSON - report whole list as simple string in quotes */
-
-			if (!dm_pool_grow_object(rh->mem, JSON_QUOTE, 1)) {
-				log_error(UNABLE_TO_EXTEND_OUTPUT_LINE_MSG);
-				return 0;
-			}
-
-			if (!_safe_repstr_output(rh, field->report_string, 0))
-				return_0;
-
-			if (!dm_pool_grow_object(rh->mem, JSON_QUOTE, 1)) {
-				log_error(UNABLE_TO_EXTEND_OUTPUT_LINE_MSG);
-				return 0;
-			}
-
-			return 1;
-		}
-
-		/* string list in JSON_STD - report list as proper JSON array */
-
-		if (!dm_pool_grow_object(rh->mem, JSON_ARRAY_START, 1)) {
-			log_error(UNABLE_TO_EXTEND_OUTPUT_LINE_MSG);
-			return 0;
-		}
-
-		if (*field->report_string != 0) {
-			pos_len = (struct pos_len *) (field->report_string +
-				  ((struct str_list_sort_value *) field->sort_value)->items[0].len + 1);
-			list_size = pos_len->pos;
-		} else
-			list_size = 0;
-
-		for (i = 0; i < list_size; i++) {
-			pos_len++;
-
-			if (i != 0) {
-				if (!dm_pool_grow_object(rh->mem, JSON_SEPARATOR, 1)) {
-					log_error(UNABLE_TO_EXTEND_OUTPUT_LINE_MSG);
-					return 0;
-				}
-			}
-
-			if (!dm_pool_grow_object(rh->mem, JSON_QUOTE, 1)) {
-				log_error(UNABLE_TO_EXTEND_OUTPUT_LINE_MSG);
-				return 0;
-			}
-
-			if (!_safe_repstr_output(rh, field->report_string + pos_len->pos, pos_len->len))
-				return_0;
-
-			if (!dm_pool_grow_object(rh->mem, JSON_QUOTE, 1)) {
-				log_error(UNABLE_TO_EXTEND_OUTPUT_LINE_MSG);
-				return 0;
-			}
-		}
-
-		if (!dm_pool_grow_object(rh->mem, JSON_ARRAY_END, 1)) {
-			log_error(UNABLE_TO_EXTEND_OUTPUT_LINE_MSG);
-			return 0;
-		}
-
-		return 1;
-	}
-
-	/* all other types than string list - handle both JSON and JSON_STD */
-
-	if (!(_is_json_std_report(rh) && _is_pure_numeric_field(field))) {
-		if (!dm_pool_grow_object(rh->mem, JSON_QUOTE, 1)) {
-			log_error(UNABLE_TO_EXTEND_OUTPUT_LINE_MSG);
-			return 0;
-		}
-	}
-
-	if (_is_json_std_report(rh) && _is_pure_numeric_field(field) && !*field->report_string)
-		repstr = JSON_NULL;
-	else
-		repstr = field->report_string;
-
-	if (!_safe_repstr_output(rh, repstr, 0))
-		return_0;
-
-	if (!(_is_json_std_report(rh) && _is_pure_numeric_field(field))) {
-		if (!dm_pool_grow_object(rh->mem, JSON_QUOTE, 1)) {
-			log_error(UNABLE_TO_EXTEND_OUTPUT_LINE_MSG);
-			return 0;
-		}
-	}
-
-	return 1;
-}
-
-/*
- * Produce report output
- */
-static int _output_field(struct dm_report *rh, struct dm_report_field *field)
-{
-	return _is_json_report(rh) ? _output_field_json_fmt(rh, field)
-				   : _output_field_basic_fmt(rh, field);
-}
-
 static void _destroy_rows(struct dm_report *rh)
 {
 	/*
@@ -5181,7 +4982,6 @@ int dm_report_group_push(struct dm_report_group *group, struct dm_report *report
 				goto_bad;
 			break;
 		case DM_REPORT_GROUP_JSON:
-		case DM_REPORT_GROUP_JSON_STD:
 			if (!_report_group_push_json(item, data))
 				goto_bad;
 			break;
@@ -5245,7 +5045,6 @@ int dm_report_group_pop(struct dm_report_group *group)
 				return_0;
 			break;
 		case DM_REPORT_GROUP_JSON:
-		case DM_REPORT_GROUP_JSON_STD:
 			if (!_report_group_pop_json(item))
 				return_0;
 			break;
@@ -5282,7 +5081,7 @@ int dm_report_group_output_and_pop_all(struct dm_report_group *group)
 			return_0;
 	}

-	if (group->type == DM_REPORT_GROUP_JSON || group->type == DM_REPORT_GROUP_JSON_STD) {
+	if (group->type == DM_REPORT_GROUP_JSON) {
 		_json_output_start(group);
 		log_print(JSON_OBJECT_END);
 		group->indent -= JSON_INDENT_UNIT;
--- a/device_mapper/libdm-targets.c
+++ b/device_mapper/libdm-targets.c
@@ -366,8 +366,8 @@ int dm_get_status_writecache(struct dm_pool *mem, const char *params,
 	if (!(s = dm_pool_zalloc(mem, sizeof(struct dm_status_writecache))))
 		return_0;

-	if (sscanf(params, "%llu %llu %llu %llu",
-		   (unsigned long long *)&s->error,
+	if (sscanf(params, "%u %llu %llu %llu",
+		   &s->error,
 		   (unsigned long long *)&s->total_blocks,
 		   (unsigned long long *)&s->free_blocks,
 		   (unsigned long long *)&s->writeback_blocks) != 4) {
@@ -384,11 +384,13 @@ int dm_get_status_integrity(struct dm_pool *mem, const char *params,
 			     struct dm_status_integrity **status)
 {
 	struct dm_status_integrity *s;
-	char recalc_str[16] = "\0";
+	char recalc_str[8];

-	if (!(s = dm_pool_zalloc(mem, sizeof(*s))))
+	if (!(s = dm_pool_zalloc(mem, sizeof(struct dm_status_integrity))))
 		return_0;

+	memset(recalc_str, 0, sizeof(recalc_str));
+
 	if (sscanf(params, "%llu %llu %s",
 		   (unsigned long long *)&s->number_of_mismatches,
 		   (unsigned long long *)&s->provided_data_sectors,
--- a/device_mapper/misc/dm-ioctl.h
+++ b/device_mapper/misc/dm-ioctl.h
@@ -1,7 +1,6 @@
-/* SPDX-License-Identifier: LGPL-2.0+ WITH Linux-syscall-note */
 /*
 * Copyright (C) 2001 - 2003 Sistina Software (UK) Limited.
- * Copyright (C) 2004 - 2021 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2004 - 2017 Red Hat, Inc. All rights reserved.
 *
 * This file is released under the LGPL.
 */
@@ -195,22 +194,8 @@ struct dm_name_list {
 	uint32_t next;		/* offset to the next record from
 				   the _start_ of this */
 	char name[0];
-
-	/*
-	 * The following members can be accessed by taking a pointer that
-	 * points immediately after the terminating zero character in "name"
-	 * and aligning this pointer to next 8-byte boundary.
-	 * Uuid is present if the flag DM_NAME_LIST_FLAG_HAS_UUID is set.
-	 *
-	 * uint32_t event_nr;
-	 * uint32_t flags;
-	 * char uuid[0];
-	 */
 };

-#define DM_NAME_LIST_FLAG_HAS_UUID		1
-#define DM_NAME_LIST_FLAG_DOESNT_HAVE_UUID	2
-
 /*
 * Used to retrieve the target versions
 */
@@ -289,9 +274,9 @@ enum {
 #define DM_GET_TARGET_VERSION	_IOWR(DM_IOCTL, DM_GET_TARGET_VERSION_CMD, struct dm_ioctl)

 #define DM_VERSION_MAJOR	4
-#define DM_VERSION_MINOR	45
+#define DM_VERSION_MINOR	36
 #define DM_VERSION_PATCHLEVEL	0
-#define DM_VERSION_EXTRA	"-ioctl (2021-03-22)"
+#define DM_VERSION_EXTRA	"-ioctl (2017-06-09)"

 /* Status bits */
 #define DM_READONLY_FLAG	(1 << 0) /* In/Out */
@@ -379,10 +364,4 @@ enum {
 */
 #define DM_INTERNAL_SUSPEND_FLAG	(1 << 18) /* Out */

-/*
- * If set, returns in the in buffer passed by UM, the raw table information
- * that would be measured by IMA subsystem on device state change.
- */
-#define DM_IMA_MEASUREMENT_FLAG	(1 << 19) /* In */
-
 #endif				/* _LINUX_DM_IOCTL_H */
--- a/device_mapper/mm/pool.c
+++ b/device_mapper/mm/pool.c
@@ -98,7 +98,7 @@ void dm_pools_check_leaks(void)
 			  p->orig_pool,
 			  p->name, p->stats.bytes);
 #else
-		log_error(" [%p] %s", (void *)p, p->name);
+		log_error(" [%p] %s", p, p->name);
 #endif
 	}
 	pthread_mutex_unlock(&_dm_pools_mutex);
--- a/device_mapper/vdo/target.h
+++ b/device_mapper/vdo/target.h
@@ -69,18 +69,15 @@ bool dm_vdo_status_parse(struct dm_pool *mem, const char *input,
 enum dm_vdo_write_policy {
 	DM_VDO_WRITE_POLICY_AUTO = 0,
 	DM_VDO_WRITE_POLICY_SYNC,
-	DM_VDO_WRITE_POLICY_ASYNC,
-	DM_VDO_WRITE_POLICY_ASYNC_UNSAFE
+	DM_VDO_WRITE_POLICY_ASYNC
 };

 // FIXME: review whether we should use the createParams from the userlib
 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

--- 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_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.
 *
@@ -18,124 +18,88 @@
 #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;
 	}

 	switch (vtp->write_policy) {
 	case DM_VDO_WRITE_POLICY_SYNC:
 	case DM_VDO_WRITE_POLICY_ASYNC:
-	case DM_VDO_WRITE_POLICY_ASYNC_UNSAFE:
 	case DM_VDO_WRITE_POLICY_AUTO:
 		break;
 	default:
@@ -155,10 +119,10 @@ bool dm_vdo_validate_target_params(const struct dm_vdo_target_params *vtp,
 		valid = false;
 	}

-	if (vdo_size > DM_VDO_LOGICAL_SIZE_MAXIMUM) {
+	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) / 2,
-			  DM_VDO_LOGICAL_SIZE_MAXIMUM / (UINT64_C(1024) * 1024 * 1024 * 1024 >> SECTOR_SHIFT));
+			  (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/kernel/integrity.txt
+++ b/doc/kernel/integrity.txt
@@ -94,7 +94,7 @@ journal_watermark:number

 commit_time:number
 	Commit time in milliseconds. When this time passes, the journal is
-	written. The journal is also written immediately if the FLUSH
+	written. The journal is also written immediatelly if the FLUSH
 	request is received.

 internal_hash:algorithm(:key)	(the key is optional)
--- a/include/.gitignore
+++ b/include/.gitignore
@@ -1,3 +1 @@
 *.h
-.symlinks
-.symlinks_created
--- a/include/configure.h.in
+++ b/include/configure.h.in
@@ -1,8 +1,5 @@
 /* include/configure.h.in.  Generated from configure.ac by autoheader.  */

-/* Define to 1 to include code that uses libsystemd machine-id apis. */
-#undef APP_MACHINEID_SUPPORT
-
 /* Define to 1 to use libblkid detection of signatures when wiping. */
 #undef BLKID_WIPING_SUPPORT

@@ -25,13 +22,18 @@
 /* The path to 'cache_restore', if available. */
 #undef CACHE_RESTORE_CMD

-/* Define to 1 if the `closedir' function returns void instead of int. */
+/* Define to 1 if the `closedir' function returns void instead of `int'. */
 #undef CLOSEDIR_VOID

 /* Path to cmirrord pidfile. */
 #undef CMIRRORD_PIDFILE

-/* Define to 1 if using 'alloca.c'. */
+/* Define to one of `_getb67', `GETB67', `getb67' for Cray-2 and Cray-YMP
+   systems. This function is required for `alloca.c' support on those systems.
+   */
+#undef CRAY_STACKSEG_END
+
+/* Define to 1 if using `alloca.c'. */
 #undef C_ALLOCA

 /* Name of default metadata archive subdirectory. */
@@ -85,9 +87,6 @@
 /* Use blkid wiping by default. */
 #undef DEFAULT_USE_BLKID_WIPING

-/* Default for lvm.conf use_devicesfile. */
-#undef DEFAULT_USE_DEVICES_FILE
-
 /* Use lvmlockd by default. */
 #undef DEFAULT_USE_LVMLOCKD

@@ -109,6 +108,9 @@
 /* Define to 1 to enable the device-mapper filemap daemon. */
 #undef DMFILEMAPD

+/* Define to enable compat protocol */
+#undef DM_COMPAT
+
 /* Define default group for device node */
 #undef DM_DEVICE_GID

@@ -124,22 +126,17 @@
 /* Library version */
 #undef DM_LIB_VERSION

-/* Define to 1 to include the LVM editline shell. */
-#undef EDITLINE_SUPPORT
-
 /* Path to fsadm binary. */
 #undef FSADM_PATH

-/* Define to use GNU versioning in the shared library. */
-#undef GNU_SYMVER
-
 /* Define to 1 if you have the `alarm' function. */
 #undef HAVE_ALARM

-/* Define to 1 if you have 'alloca', as a function or macro. */
+/* Define to 1 if you have `alloca', as a function or macro. */
 #undef HAVE_ALLOCA

-/* Define to 1 if <alloca.h> works. */
+/* Define to 1 if you have <alloca.h> and it should be used (not on Ultrix).
+   */
 #undef HAVE_ALLOCA_H

 /* Define to 1 if you have the <arpa/inet.h> header file. */
@@ -154,9 +151,6 @@
 /* Define to 1 if you have the `atexit' function. */
 #undef HAVE_ATEXIT

-/* Define if ioctl BLKZEROOUT can be used for device zeroing. */
-#undef HAVE_BLKZEROOUT
-
 /* Define to 1 if canonicalize_file_name is available. */
 #undef HAVE_CANONICALIZE_FILE_NAME

@@ -182,18 +176,12 @@
 /* Define to 1 if you don't have `vprintf' but do have `_doprnt.' */
 #undef HAVE_DOPRNT

-/* Define to 1 if you have the <editline/readline.h> header file. */
-#undef HAVE_EDITLINE_READLINE_H
-
 /* Define to 1 if you have the <errno.h> header file. */
 #undef HAVE_ERRNO_H

 /* Define to 1 if you have the <fcntl.h> header file. */
 #undef HAVE_FCNTL_H

-/* Define to 1 if you have the `ffs' function. */
-#undef HAVE_FFS
-
 /* Define to 1 if you have the <float.h> header file. */
 #undef HAVE_FLOAT_H

@@ -267,9 +255,6 @@
 /* Define to 1 if you have the <machine/endian.h> header file. */
 #undef HAVE_MACHINE_ENDIAN_H

-/* Define to 1 if you have the `mallinfo2' function. */
-#undef HAVE_MALLINFO2
-
 /* Define to 1 if your system has a GNU libc compatible `malloc' function, and
   to 0 otherwise. */
 #undef HAVE_MALLOC
@@ -280,6 +265,9 @@
 /* Define to 1 if you have the `memchr' function. */
 #undef HAVE_MEMCHR

+/* Define to 1 if you have the <memory.h> header file. */
+#undef HAVE_MEMORY_H
+
 /* Define to 1 if you have the `memset' function. */
 #undef HAVE_MEMSET

@@ -396,7 +384,7 @@
 /* Define to 1 if you have the `strerror' function. */
 #undef HAVE_STRERROR

-/* Define if you have `strerror_r'. */
+/* Define to 1 if you have the `strerror_r' function. */
 #undef HAVE_STRERROR_R

 /* Define to 1 if you have the <strings.h> header file. */
@@ -519,9 +507,6 @@
 /* valgrind.h found */
 #undef HAVE_VALGRIND

-/* Define to 1 if you have the `versionsort' function. */
-#undef HAVE_VERSIONSORT
-
 /* Define to 1 if you have the `vfork' function. */
 #undef HAVE_VFORK

@@ -546,12 +531,6 @@
 /* Define to 1 if the system has the `__builtin_clzll' built-in function */
 #undef HAVE___BUILTIN_CLZLL

-/* Define to 1 if the system has the `__builtin_ffs' built-in function */
-#undef HAVE___BUILTIN_FFS
-
-/* Define to 1 to include built-in support for integrity. */
-#undef INTEGRITY_INTERNAL
-
 /* Internalization package */
 #undef INTL_PACKAGE

@@ -564,9 +543,6 @@
 /* Define to 1 to include code that uses lvmlockd dlm option. */
 #undef LOCKDDLM_SUPPORT

-/* Define to 1 to include code that uses lvmlockd IDM option. */
-#undef LOCKDIDM_SUPPORT
-
 /* Define to 1 to include code that uses lvmlockd sanlock option. */
 #undef LOCKDSANLOCK_SUPPORT

@@ -577,9 +553,6 @@
 /* Path to lvmconfig binary. */
 #undef LVMCONFIG_PATH

-/* Path to lvm_import_vdo script. */
-#undef LVMIMPORTVDO_PATH
-
 /* Path to lvmlockd pidfile. */
 #undef LVMLOCKD_PIDFILE

@@ -598,9 +571,6 @@
 /* Path to lvm binary. */
 #undef LVM_PATH

-/* Path to lvresize_fs_helper script. */
-#undef LVRESIZE_FS_HELPER_PATH
-
 /* Define to 1 if `major', `minor', and `makedev' are declared in <mkdev.h>.
   */
 #undef MAJOR_IN_MKDEV
@@ -645,6 +615,9 @@
 /* Define to 1 to include the LVM readline shell. */
 #undef READLINE_SUPPORT

+/* Define as the return type of signal handlers (`int' or `void'). */
+#undef RETSIGTYPE
+
 /* Define to 1 to include built-in support for snapshots. */
 #undef SNAPSHOT_INTERNAL

@@ -656,17 +629,12 @@
 	STACK_DIRECTION = 0 => direction of growth unknown */
 #undef STACK_DIRECTION

-/* Define to 1 if all of the C90 standard headers exist (not just the ones
-   required in a freestanding environment). This macro is provided for
-   backward compatibility; new code need not use it. */
+/* Define to 1 if you have the ANSI C header files. */
 #undef STDC_HEADERS

 /* Define to 1 if strerror_r returns char *. */
 #undef STRERROR_R_CHAR_P

-/* Define to 1 to include code that uses systemd journal. */
-#undef SYSTEMD_JOURNAL_SUPPORT
-
 /* Path to testsuite data */
 #undef TESTSUITE_DATA

@@ -689,6 +657,9 @@
 /* The path to 'thin_restore', if available. */
 #undef THIN_RESTORE_CMD

+/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */
+#undef TIME_WITH_SYS_TIME
+
 /* Define to 1 if your <sys/time.h> declares `struct tm'. */
 #undef TM_IN_SYS_TIME

@@ -707,6 +678,9 @@
 /* Define to 1 to include built-in support for writecache. */
 #undef WRITECACHE_INTERNAL

+/* Define to 1 to include built-in support for integrity. */
+#undef INTEGRITY_INTERNAL
+
 /* Define to get access to GNU/Linux extension */
 #undef _GNU_SOURCE

@@ -765,7 +739,7 @@
 /* Define to `long int' if <sys/types.h> does not define. */
 #undef off_t

-/* Define as a signed integer type capable of holding a process identifier. */
+/* Define to `int' if <sys/types.h> does not define. */
 #undef pid_t

 /* Define to rpl_realloc if the replacement function should be used. */
--- a/lib/Makefile.in
+++ b/lib/Makefile.in
@@ -15,7 +15,6 @@
 srcdir = @srcdir@
 top_srcdir = @top_srcdir@
 top_builddir = @top_builddir@
-abs_srcdir = @abs_srcdir@

 SOURCES =\
 	activate/activate.c \
@@ -30,19 +29,14 @@ SOURCES =\
 	device/bcache.c \
 	device/bcache-utils.c \
 	device/dev-cache.c \
-	device/device_id.c \
 	device/dev-ext.c \
 	device/dev-io.c \
 	device/dev-md.c \
-	device/dev-mpath.c \
 	device/dev-swap.c \
 	device/dev-type.c \
 	device/dev-luks.c \
 	device/dev-dasd.c \
 	device/dev-lvm1-pool.c \
-	device/filesystem.c \
-	device/online.c \
-	device/parse_vpd.c \
 	display/display.c \
 	error/errseg.c \
 	unknown/unknown.c \
@@ -56,8 +50,8 @@ SOURCES =\
 	filters/filter-partitioned.c \
 	filters/filter-type.c \
 	filters/filter-usable.c \
+	filters/filter-internal.c \
 	filters/filter-signature.c \
-	filters/filter-deviceid.c \
 	format_text/archive.c \
 	format_text/archiver.c \
 	format_text/export.c \
@@ -82,7 +76,6 @@ SOURCES =\
 	metadata/mirror.c \
 	metadata/pool_manip.c \
 	metadata/pv.c \
-	metadata/pv_list.c \
 	metadata/pv_manip.c \
 	metadata/pv_map.c \
 	metadata/raid_manip.c \
--- a/lib/activate/activate.c
+++ b/lib/activate/activate.c
--- a/lib/activate/activate.h
+++ b/lib/activate/activate.h
@@ -106,10 +106,6 @@ int target_present(struct cmd_context *cmd, const char *target_name,
 		   int use_modprobe);
 int target_version(const char *target_name, uint32_t *maj,
 		   uint32_t *min, uint32_t *patchlevel);
-
-int get_device_list(const struct volume_group *vg, struct dm_list **devs,
-		    unsigned *devs_features);
-
 int raid4_is_supported(struct cmd_context *cmd, const struct segment_type *segtype);
 int lvm_dm_prefix_check(int major, int minor, const char *prefix);
 int list_segment_modules(struct dm_pool *mem, const struct lv_segment *seg,
@@ -128,9 +124,6 @@ int lv_resume_if_active(struct cmd_context *cmd, const char *lvid_s,
 			unsigned origin_only, unsigned exclusive, unsigned revert, const struct logical_volume *lv);
 int lv_activate(struct cmd_context *cmd, const char *lvid_s, int exclusive,
 		int noscan, int temporary, const struct logical_volume *lv);
-int lv_activate_with_filter(struct cmd_context *cmd, const char *lvid_s, int exclusive,
-			    int noscan, int temporary, const struct logical_volume *lv);
-int lv_deactivate(struct cmd_context *cmd, const char *lvid_s, const struct logical_volume *lv);

 int lv_mknodes(struct cmd_context *cmd, const struct logical_volume *lv);

@@ -138,6 +131,8 @@ int lv_deactivate_any_missing_subdevs(const struct logical_volume *lv);

 int activate_lv(struct cmd_context *cmd, const struct logical_volume *lv);
 int deactivate_lv(struct cmd_context *cmd, const struct logical_volume *lv);
+int activate_lv_opts(struct cmd_context *cmd, const struct logical_volume *lv,
+                     struct lv_activate_opts *laopts);
 int suspend_lv(struct cmd_context *cmd, const struct logical_volume *lv);
 int suspend_lv_origin(struct cmd_context *cmd, const struct logical_volume *lv);
 int resume_lv(struct cmd_context *cmd, const struct logical_volume *lv);
@@ -192,15 +187,16 @@ int lv_raid_dev_health(const struct logical_volume *lv, char **dev_health);
 int lv_raid_mismatch_count(const struct logical_volume *lv, uint64_t *cnt);
 int lv_raid_sync_action(const struct logical_volume *lv, char **sync_action);
 int lv_raid_message(const struct logical_volume *lv, const char *msg);
-int lv_raid_status(const struct logical_volume *lv, struct lv_status_raid **status);
 int lv_writecache_message(const struct logical_volume *lv, const char *msg);
 int lv_cache_status(const struct logical_volume *cache_lv,
 		    struct lv_status_cache **status);
+int lv_thin_pool_percent(const struct logical_volume *lv, int metadata,
+			 dm_percent_t *percent);
+int lv_thin_percent(const struct logical_volume *lv, int mapped,
+		    dm_percent_t *percent);
+int lv_thin_pool_transaction_id(const struct logical_volume *lv,
+				uint64_t *transaction_id);
 int lv_thin_device_id(const struct logical_volume *lv, uint32_t *device_id);
-int lv_thin_status(const struct logical_volume *lv, int flush,
-		   struct lv_status_thin **status);
-int lv_thin_pool_status(const struct logical_volume *lv, int flush,
-			struct lv_status_thin_pool **status);
 int lv_vdo_pool_status(const struct logical_volume *lv, int flush,
 		       struct lv_status_vdo **status);
 int lv_vdo_pool_percent(const struct logical_volume *lv, dm_percent_t *percent);
@@ -213,8 +209,6 @@ int lvs_in_vg_opened(const struct volume_group *vg);

 int lv_is_active(const struct logical_volume *lv);

-int lv_passes_readonly_filter(const struct logical_volume *lv);
-
 /* Check is any component LV is active */
 const struct logical_volume *lv_component_is_active(const struct logical_volume *lv);
 const struct logical_volume *lv_holder_is_active(const struct logical_volume *lv);
@@ -258,7 +252,7 @@ struct dev_usable_check_params {
 * Returns 1 if mapped device is not suspended, blocked or
 * is using a reserved name.
 */
-int device_is_usable(struct cmd_context *cmd, struct device *dev, struct dev_usable_check_params check, int *is_lv);
+int device_is_usable(struct device *dev, struct dev_usable_check_params check);

 /*
 * Declaration moved here from fs.h to keep header fs.h hidden
--- a/lib/activate/dev_manager.c
+++ b/lib/activate/dev_manager.c
--- a/lib/activate/dev_manager.h
+++ b/lib/activate/dev_manager.h
@@ -29,8 +29,6 @@ struct lv_seg_status;

 int read_only_lv(const struct logical_volume *lv, const struct lv_activate_opts *laopts, const char *layer);

-int get_crypt_table_offset(dev_t crypt_devt, uint32_t *offset_bytes);
-
 /*
 * Constructor and destructor.
 */
@@ -61,7 +59,7 @@ int dev_manager_mirror_percent(struct dev_manager *dm,
 			       dm_percent_t *percent, uint32_t *event_nr);
 int dev_manager_raid_status(struct dev_manager *dm,
 			    const struct logical_volume *lv,
-			    struct lv_status_raid **status, int *exists);
+			    struct dm_status_raid **status);
 int dev_manager_raid_message(struct dev_manager *dm,
 			     const struct logical_volume *lv,
 			     const char *msg);
@@ -70,19 +68,24 @@ int dev_manager_writecache_message(struct dev_manager *dm,
                                   const char *msg);
 int dev_manager_cache_status(struct dev_manager *dm,
 			     const struct logical_volume *lv,
-			     struct lv_status_cache **status, int *exists);
-int dev_manager_thin_status(struct dev_manager *dm,
-			    const struct logical_volume *lv, int flush,
-			    struct lv_status_thin **status, int *exists);
+			     struct lv_status_cache **status);
+int dev_manager_thin_pool_status(struct dev_manager *dm,
+				 const struct logical_volume *lv,
+				 struct dm_status_thin_pool **status,
+				 int flush);
+int dev_manager_thin_pool_percent(struct dev_manager *dm,
+				  const struct logical_volume *lv,
+				  int metadata, dm_percent_t *percent);
+int dev_manager_thin_percent(struct dev_manager *dm,
+			     const struct logical_volume *lv,
+			     int mapped, dm_percent_t *percent);
 int dev_manager_thin_device_id(struct dev_manager *dm,
 			       const struct logical_volume *lv,
-			       uint32_t *device_id, int *exist);
-int dev_manager_thin_pool_status(struct dev_manager *dm,
-				 const struct logical_volume *lv, int flush,
-				 struct lv_status_thin_pool **status, int *exists);
+			       uint32_t *device_id);
 int dev_manager_vdo_pool_status(struct dev_manager *dm,
-				const struct logical_volume *lv, int flush,
-				struct lv_status_vdo **status, int *exists);
+				const struct logical_volume *lv,
+				struct lv_status_vdo **vdo_status,
+				int flush);
 int dev_manager_suspend(struct dev_manager *dm, const struct logical_volume *lv,
 			struct lv_activate_opts *laopts, int lockfs, int flush_required);
 int dev_manager_activate(struct dev_manager *dm, const struct logical_volume *lv,
@@ -105,7 +108,5 @@ int dev_manager_device_uses_vg(struct device *dev,
 int dev_manager_remove_dm_major_minor(uint32_t major, uint32_t minor);

 int dev_manager_check_prefix_dm_major_minor(uint32_t major, uint32_t minor, const char *prefix);
-int dev_manager_get_device_list(const char *prefix, struct dm_list **devs,
-				unsigned *devs_features);

 #endif
--- a/lib/activate/fs.c
+++ b/lib/activate/fs.c
@@ -76,7 +76,7 @@ static int _rm_dir(const char *dev_dir, const char *vg_name)
 		return 0;
 	}

-	if (dir_exists(vg_path) && dm_is_empty_dir(vg_path)) {
+	if (dir_exists(vg_path) && is_empty_dir(vg_path)) {
 		log_very_verbose("Removing directory %s", vg_path);
 		rmdir(vg_path);
 	}
@@ -93,7 +93,7 @@ static void _rm_blks(const char *dir)
 	DIR *d;

 	if (!(d = opendir(dir))) {
-		log_sys_debug("opendir", dir);
+		log_sys_error("opendir", dir);
 		return;
 	}

@@ -104,7 +104,7 @@ static void _rm_blks(const char *dir)
 			continue;

 		if (dm_snprintf(path, sizeof(path), "%s/%s", dir, name) == -1) {
-			log_debug("Couldn't create path for %s.", name);
+			log_error("Couldn't create path for %s", name);
 			continue;
 		}

@@ -113,12 +113,12 @@ static void _rm_blks(const char *dir)
 				continue;
 			log_very_verbose("Removing %s", path);
 			if (unlink(path) < 0)
-				log_sys_debug("unlink", path);
+				log_sys_error("unlink", path);
 		}
 	}

 	if (closedir(d))
-		log_sys_debug("closedir", dir);
+		log_sys_error("closedir", dir);
 }

 static int _mk_link(const char *dev_dir, const char *vg_name,
@@ -169,7 +169,7 @@ static int _mk_link(const char *dev_dir, const char *vg_name,

 			log_very_verbose("Removing %s", lvm1_group_path);
 			if (unlink(lvm1_group_path) < 0)
-				log_sys_debug("unlink", lvm1_group_path);
+				log_sys_error("unlink", lvm1_group_path);
 		}
 	}

--- a/lib/cache/lvmcache.c
+++ b/lib/cache/lvmcache.c
--- a/lib/cache/lvmcache.h
+++ b/lib/cache/lvmcache.h
@@ -47,7 +47,7 @@ struct lvmcache_vginfo;
 */
 struct lvmcache_vgsummary {
 	const char *vgname;
-	char vgid[ID_LEN + 1];
+	struct id vgid;
 	uint64_t vgstatus;
 	char *creation_host;
 	const char *system_id;
@@ -69,21 +69,21 @@ void lvmcache_destroy(struct cmd_context *cmd, int retain_orphans, int reset);
 int lvmcache_label_scan(struct cmd_context *cmd);
 int lvmcache_label_rescan_vg(struct cmd_context *cmd, const char *vgname, const char *vgid);
 int lvmcache_label_rescan_vg_rw(struct cmd_context *cmd, const char *vgname, const char *vgid);
-int lvmcache_label_reopen_vg_rw(struct cmd_context *cmd, const char *vgname, const char *vgid);

 /* Add/delete a device */
-struct lvmcache_info *lvmcache_add(struct cmd_context *cmd, struct labeller *labeller, const char *pvid,
+struct lvmcache_info *lvmcache_add(struct labeller *labeller, const char *pvid,
                                   struct device *dev, uint64_t label_sector,
                                   const char *vgname, const char *vgid,
                                   uint32_t vgstatus, int *is_duplicate);
-int lvmcache_add_orphan_vginfo(struct cmd_context *cmd, const char *vgname, struct format_type *fmt);
+int lvmcache_add_orphan_vginfo(const char *vgname, struct format_type *fmt);
 void lvmcache_del(struct lvmcache_info *info);
 void lvmcache_del_dev(struct device *dev);

 /* Update things */
-int lvmcache_update_vgname_and_id(struct cmd_context *cmd, struct lvmcache_info *info,
+int lvmcache_update_vgname_and_id(struct lvmcache_info *info,
 				  struct lvmcache_vgsummary *vgsummary);
 int lvmcache_update_vg_from_read(struct volume_group *vg, unsigned precommitted);
+int lvmcache_update_vg_from_write(struct volume_group *vg);

 void lvmcache_lock_vgname(const char *vgname, int read_only);
 void lvmcache_unlock_vgname(const char *vgname);
@@ -95,10 +95,9 @@ struct lvmcache_vginfo *lvmcache_vginfo_from_vgname(const char *vgname,
 					   const char *vgid);
 struct lvmcache_vginfo *lvmcache_vginfo_from_vgid(const char *vgid);
 struct lvmcache_info *lvmcache_info_from_pvid(const char *pvid, struct device *dev, int valid_only);
-struct lvmcache_info *lvmcache_info_from_pv_id(const struct id *pv_id, struct device *dev, int valid_only);
 const char *lvmcache_vgname_from_vgid(struct dm_pool *mem, const char *vgid);
 const char *lvmcache_vgid_from_vgname(struct cmd_context *cmd, const char *vgname);
-struct device *lvmcache_device_from_pv_id(struct cmd_context *cmd, const struct id *pv_id, uint64_t *label_sector);
+struct device *lvmcache_device_from_pvid(struct cmd_context *cmd, const struct id *pvid, uint64_t *label_sector);
 const char *lvmcache_vgname_from_info(struct lvmcache_info *info);
 const struct format_type *lvmcache_fmt_from_info(struct lvmcache_info *info);

@@ -162,6 +161,11 @@ struct device *lvmcache_device(struct lvmcache_info *info);
 unsigned lvmcache_mda_count(struct lvmcache_info *info);
 uint64_t lvmcache_smallest_mda_size(struct lvmcache_info *info);

+struct metadata_area *lvmcache_get_mda(struct cmd_context *cmd,
+                                      const char *vgname,
+                                      struct device *dev,
+                                      int use_mda_num);
+
 bool lvmcache_has_duplicate_devs(void);
 void lvmcache_del_dev_from_duplicates(struct device *dev);
 bool lvmcache_dev_is_unused_duplicate(struct device *dev);
@@ -170,7 +174,6 @@ int lvmcache_get_unused_duplicates(struct cmd_context *cmd, struct dm_list *head
 int vg_has_duplicate_pvs(struct volume_group *vg);

 int lvmcache_found_duplicate_vgnames(void);
-bool lvmcache_has_duplicate_local_vgname(const char *vgid, const char *vgname);

 int lvmcache_contains_lock_type_sanlock(struct cmd_context *cmd);

@@ -181,7 +184,7 @@ int lvmcache_vg_is_foreign(struct cmd_context *cmd, const char *vgname, const ch

 bool lvmcache_scan_mismatch(struct cmd_context *cmd, const char *vgname, const char *vgid);

-int lvmcache_vginfo_has_pvid(struct lvmcache_vginfo *vginfo, const char *pvid_arg);
+int lvmcache_vginfo_has_pvid(struct lvmcache_vginfo *vginfo, char *pvid);

 uint64_t lvmcache_max_metadata_size(void);
 void lvmcache_save_metadata_size(uint64_t val);
@@ -209,8 +212,6 @@ void lvmcache_del_outdated_devs(struct cmd_context *cmd,

 void lvmcache_save_bad_mda(struct lvmcache_info *info, struct metadata_area *mda);

-void lvmcache_del_save_bad_mda(struct lvmcache_info *info, int mda_num, int bad_mda_flag);
-
 void lvmcache_get_bad_mdas(struct cmd_context *cmd,
                           const char *vgname, const char *vgid,
                           struct dm_list *bad_mda_list);
@@ -219,15 +220,4 @@ void lvmcache_get_mdas(struct cmd_context *cmd,
                       const char *vgname, const char *vgid,
                       struct dm_list *mda_list);

-const char *dev_filtered_reason(struct device *dev);
-const char *devname_error_reason(const char *devname);
-
-struct metadata_area *lvmcache_get_dev_mda(struct device *dev, int mda_num);
-
-void lvmcache_extra_md_component_checks(struct cmd_context *cmd);
-
-unsigned int lvmcache_vg_info_count(void);
-
-int lvmcache_pvsummary_count(const char *vgname);
-
 #endif
--- a/lib/cache_segtype/cache.c
+++ b/lib/cache_segtype/cache.c
@@ -335,7 +335,7 @@ static int _lookup_kallsyms(const char *symbol)

 static int _target_present(struct cmd_context *cmd,
 			   const struct lv_segment *seg __attribute__((unused)),
-			   unsigned *attributes)
+			   unsigned *attributes __attribute__((unused)))
 {
 	/* List of features with their kernel target version */
 	static const struct feature {
@@ -618,9 +618,6 @@ static int _cache_add_target_line(struct dev_manager *dm,
 {
 	struct lv_segment *cache_pool_seg;
 	struct lv_segment *setting_seg;
-	struct dm_config_node *policy_settings;
-	struct dm_config_node *cn;
-	unsigned  i, j;
 	union lvid metadata_lvid;
 	union lvid data_lvid;
 	char *metadata_uuid, *data_uuid, *origin_uuid;
@@ -721,61 +718,6 @@ static int _cache_add_target_line(struct dev_manager *dm,
 			return_0;
 	}

-	policy_settings = seg->cleaner_policy ? NULL : setting_seg->policy_settings;
-	if (policy_settings && cache_pool_seg->policy_name) {
-		static const struct act {
-			const char *name;
-			const char *settings[20];
-		} _accepted[] = {
-			{
-				"MQ", {
-					"migration_threshold", "sequential_threshold", "random_threshold",
-					"read_promote_adjustment", "write_promote_adjustment",
-					"discard_promote_adjustment", NULL
-				},
-			}, {
-				"SMQ", {
-					"migration_threshold", NULL
-				}
-			}
-		};
-
-                /* Check if cache settings are acceptable to knownm policies */
-		for (i = 0; i < DM_ARRAY_SIZE(_accepted); i++) {
-			if (strcasecmp(cache_pool_seg->policy_name, _accepted[i].name))
-				continue;
-
-			for (cn = policy_settings->child; cn; cn = cn->sib) {
-				for (j = 0; _accepted[i].settings[j]; j++)
-					if (strcmp(cn->key, _accepted[i].settings[j]) == 0)
-						break; /* -> Valid setting */
-
-				/* Have we found 'unsupported' cache setting? */
-				if (!_accepted[i].settings[j]) {
-					/* Make a copy of policy settings a remove unsupported settings and Warn */
-					if (!(policy_settings = dm_config_clone_node_with_mem(mem, policy_settings, 0)))
-						return_0;
-				restart:
-					for (cn = policy_settings->child; cn; cn = cn->sib) {
-						for (j = 0; _accepted[i].settings[j]; j++) {
-							if (strcmp(cn->key, _accepted[i].settings[j]) == 0)
-								break; /* need to be dropped */
-						}
-						if (!_accepted[i].settings[j]) {
-							log_warn("WARNING: %s cache policy does not support \"%s=" FMTu64 "\" setting, "
-								 "remove with 'lvchange --cachesettings \"%s=default\" ...'.",
-								 _accepted[i].name, cn->key, cn->v->v.i, cn->key);
-							dm_config_remove_node(policy_settings, cn);
-							goto restart;
-						}
-					}
-					break;
-				}
-			}
-			break;
-		}
-	}
-
 	if (!dm_tree_node_add_cache_target(node, len,
 					   feature_flags,
 					   metadata_uuid,
@@ -784,7 +726,7 @@ static int _cache_add_target_line(struct dev_manager *dm,
 					   seg->cleaner_policy ? "cleaner" :
 						   /* undefined policy name -> likely an old "mq" */
 						   cache_pool_seg->policy_name ? : "mq",
-					   policy_settings,
+					   seg->cleaner_policy ? NULL : setting_seg->policy_settings,
 					   seg->metadata_start,
 					   seg->metadata_len,
 					   seg->data_start,
--- a/lib/commands/cmd_enum.h
+++ b/lib/commands/cmd_enum.h
@@ -1,19 +0,0 @@
-#ifndef _CMD_ENUM_H
-#define _CMD_ENUM_H
-
-/*
- * tools/cmds.h is generated by the Makefile.  For each command definition
- * in command-lines.in, cmds.h contains:
- * cmd(foo_CMD, foo)
- *
- * This header adds each of the foo_CMD's into an enum, so there's
- * a unique integer identifier for each command definition.
- */
-
-enum {
-#define cmd(a, b) a ,
-#include "../tools/cmds.h"
-#undef cmd
-};
-
-#endif
--- a/lib/commands/toolcontext.c
+++ b/lib/commands/toolcontext.c
@@ -32,7 +32,6 @@
 #include "lib/cache/lvmcache.h"
 #include "lib/format_text/archiver.h"
 #include "lib/lvmpolld/lvmpolld-client.h"
-#include "lib/device/device_id.h"

 #include <locale.h>
 #include <sys/stat.h>
@@ -41,10 +40,6 @@
 #include <syslog.h>
 #include <time.h>

-#ifdef APP_MACHINEID_SUPPORT
-#include <systemd/sd-id128.h>
-#endif
-
 #ifdef __linux__
 #  include <malloc.h>
 #endif
@@ -133,12 +128,9 @@ static const char *_read_system_id_from_file(struct cmd_context *cmd, const char
 	return system_id;
 }

-/* systemd-id128 new produced: f64406832c2140e8ac5422d1089aae03 */
-#define LVM_APPLICATION_ID SD_ID128_MAKE(f6,44,06,83,2c,21,40,e8,ac,54,22,d1,08,9a,ae,03)
-
 static const char *_system_id_from_source(struct cmd_context *cmd, const char *source)
 {
-	char buf[PATH_MAX];
+	char filebuf[PATH_MAX];
 	const char *file;
 	const char *etc_str;
 	const char *str;
@@ -157,25 +149,10 @@ static const char *_system_id_from_source(struct cmd_context *cmd, const char *s
 		goto out;
 	}

-#ifdef APP_MACHINEID_SUPPORT
-	if (!strcasecmp(source, "appmachineid")) {
-		sd_id128_t id = { 0 };
-
-		if (sd_id128_get_machine_app_specific(LVM_APPLICATION_ID, &id) != 0)
-			log_warn("WARNING: sd_id128_get_machine_app_specific() failed %s (%d).",
-				 strerror(errno), errno);
-
-		if (dm_snprintf(buf, PATH_MAX, SD_ID128_FORMAT_STR, SD_ID128_FORMAT_VAL(id)) < 0)
-			stack;
-		system_id = system_id_from_string(cmd, buf);
-		goto out;
-	}
-#endif
-
 	if (!strcasecmp(source, "machineid") || !strcasecmp(source, "machine-id")) {
 		etc_str = find_config_tree_str(cmd, global_etc_CFG, NULL);
-		if (dm_snprintf(buf, sizeof(buf), "%s/machine-id", etc_str) != -1)
-			system_id = _read_system_id_from_file(cmd, buf);
+		if (dm_snprintf(filebuf, sizeof(filebuf), "%s/machine-id", etc_str) != -1)
+			system_id = _read_system_id_from_file(cmd, filebuf);
 		goto out;
 	}

@@ -252,7 +229,7 @@ static void _get_sysfs_dir(struct cmd_context *cmd, char *buf, size_t buf_size)
 		return;
 	}

-	(void) dm_strncpy(buf, sys_mnt, buf_size);
+	strncpy(buf, sys_mnt, buf_size);
 }

 static uint32_t _parse_debug_fields(struct cmd_context *cmd, int cfg, const char *cfgname)
@@ -342,33 +319,6 @@ static int _parse_debug_classes(struct cmd_context *cmd)
 	return debug_classes;
 }

-static uint32_t _parse_log_journal(struct cmd_context *cmd, int cfg, const char *cfgname)
-{
-	const struct dm_config_node *cn;
-	const struct dm_config_value *cv;
-	uint32_t fields = 0;
-	uint32_t val;
-
-	if (!(cn = find_config_tree_array(cmd, cfg, NULL))) {
-		log_debug("Unable to find configuration for log/%s.", cfgname);
-		return 0;
-	}
-
-	for (cv = cn->v; cv; cv = cv->next) {
-		if (cv->type != DM_CFG_STRING) {
-			log_verbose("log/%s contains a value which is not a string.  Ignoring.", cfgname);
-			continue;
-		}
-
-		if ((val = log_journal_str_to_val(cv->v.str)))
-			fields |= val;
-		else
-			log_verbose("Unrecognised value for log/%s: %s", cfgname, cv->v.str);
-	}
-
-	return fields;
-}
-
 static void _init_logging(struct cmd_context *cmd)
 {
 	int append = 1;
@@ -379,11 +329,12 @@ static void _init_logging(struct cmd_context *cmd)

 	/* Syslog */
 	cmd->default_settings.syslog = find_config_tree_bool(cmd, log_syslog_CFG, NULL);
-	if (cmd->default_settings.syslog)
-		init_syslog(1, DEFAULT_LOG_FACILITY);
-	else
+	if (cmd->default_settings.syslog != 1)
 		fin_syslog();

+	if (cmd->default_settings.syslog > 1)
+		init_syslog(cmd->default_settings.syslog);
+
 	/* Debug level for log file output */
 	cmd->default_settings.debug = find_config_tree_int(cmd, log_level_CFG, NULL);
 	init_debug(cmd->default_settings.debug);
@@ -436,9 +387,6 @@ static void _init_logging(struct cmd_context *cmd)
 	init_debug_file_fields(_parse_debug_fields(cmd, log_debug_file_fields_CFG, "debug_file_fields"));
 	init_debug_output_fields(_parse_debug_fields(cmd, log_debug_output_fields_CFG, "debug_output_fields"));

-	cmd->default_settings.journal = _parse_log_journal(cmd, log_journal_CFG, "journal");
-	init_log_journal(cmd->default_settings.journal);
-
 	t = time(NULL);
 	ctime_r(&t, &timebuf[0]);
 	timebuf[24] = '\0';
@@ -453,12 +401,15 @@ static void _init_logging(struct cmd_context *cmd)
 	reset_lvm_errno(1);
 }

-static int _check_disable_udev(const char *msg)
-{
+static int _check_disable_udev(const char *msg) {
 	if (getenv("DM_DISABLE_UDEV")) {
-		log_very_verbose("DM_DISABLE_UDEV environment variable set.");
-		log_very_verbose("Overriding configuration to use udev_rules=0, udev_sync=0, verify_udev_operations=1.");
-		log_very_verbose("LVM will %s.", msg);
+		log_very_verbose("DM_DISABLE_UDEV environment variable set. "
+				 "Overriding configuration to use "
+				 "udev_rules=0, udev_sync=0, verify_udev_operations=1.");
+		if (udev_is_running())
+			log_warn("Udev is running and DM_DISABLE_UDEV environment variable is set. "
+				 "Bypassing udev, LVM will %s.", msg);
+
 		return 1;
 	}

@@ -611,7 +562,7 @@ static int _init_system_id(struct cmd_context *cmd)
 static int _process_config(struct cmd_context *cmd)
 {
 	mode_t old_umask;
-	const char *dev_ext_info_src = NULL;
+	const char *dev_ext_info_src;
 	const char *read_ahead;
 	struct stat st;
 	const struct dm_config_node *cn;
@@ -645,25 +596,14 @@ static int _process_config(struct cmd_context *cmd)
 #endif

 	dev_ext_info_src = find_config_tree_str(cmd, devices_external_device_info_source_CFG, NULL);
-
-	if (dev_ext_info_src &&
-	    strcmp(dev_ext_info_src, "none") &&
-	    strcmp(dev_ext_info_src, "udev")) {
-		log_warn("WARNING: unknown external device info source, using none.");
-		dev_ext_info_src = NULL;
-	}
-
-	if (dev_ext_info_src && !strcmp(dev_ext_info_src, "udev")) {
-		if (udev_init_library_context()) {
-			init_external_device_info_source(DEV_EXT_UDEV);
-		} else {
-			log_warn("WARNING: failed to init udev for external device info, using none.");
-			dev_ext_info_src = NULL;
-		}
-	}
-
-	if (!dev_ext_info_src || !strcmp(dev_ext_info_src, "none"))
+	if (dev_ext_info_src && !strcmp(dev_ext_info_src, "none"))
 		init_external_device_info_source(DEV_EXT_NONE);
+	else if (dev_ext_info_src && !strcmp(dev_ext_info_src, "udev"))
+		init_external_device_info_source(DEV_EXT_UDEV);
+	else {
+		log_error("Invalid external device info source specification.");
+		return 0;
+	}

 	/* proc dir */
 	if (dm_snprintf(cmd->proc_dir, sizeof(cmd->proc_dir), "%s",
@@ -720,8 +660,6 @@ static int _process_config(struct cmd_context *cmd)
 	 */
 	cmd->default_settings.udev_fallback = udev_disabled ? 1 : -1;

-	cmd->default_settings.issue_discards = find_config_tree_bool(cmd, devices_issue_discards_CFG, NULL);
-
 	init_retry_deactivation(find_config_tree_bool(cmd, activation_retry_deactivation_CFG, NULL));

 	init_activation_checks(find_config_tree_bool(cmd, activation_checks_CFG, NULL));
@@ -767,7 +705,6 @@ static int _process_config(struct cmd_context *cmd)
 	init_pv_min_size((uint64_t)pv_min_kb * (1024 >> SECTOR_SHIFT));

 	cmd->check_pv_dev_sizes = find_config_tree_bool(cmd, metadata_check_pv_device_sizes_CFG, NULL);
-	cmd->event_activation = find_config_tree_bool(cmd, global_event_activation_CFG, NULL);

 	if (!process_profilable_config(cmd))
 		return_0;
@@ -1026,13 +963,8 @@ static void _destroy_config(struct cmd_context *cmd)
 	/* CONFIG_FILE/CONFIG_MERGED_FILES */
 	if ((cft = remove_config_tree_by_source(cmd, CONFIG_MERGED_FILES)))
 		config_destroy(cft);
-	else if ((cft = remove_config_tree_by_source(cmd, CONFIG_FILE))) {
-		dm_list_iterate_items(cfl, &cmd->config_files) {
-			if (cfl->cft == cft)
-				dm_list_del(&cfl->list);
-		}
-		config_destroy(cft);
-	}
+	else
+		remove_config_tree_by_source(cmd, CONFIG_FILE);

 	dm_list_iterate_items(cfl, &cmd->config_files)
 		config_destroy(cfl->cft);
@@ -1078,10 +1010,16 @@ static int _init_dev_cache(struct cmd_context *cmd)
 	if (!dev_cache_init(cmd))
 		return_0;

-	if ((device_list_from_udev = find_config_tree_bool(cmd, devices_obtain_device_list_from_udev_CFG, NULL))) {
-		if (!udev_init_library_context())
-			device_list_from_udev = 0;
-	}
+	/*
+	 * Override existing config and hardcode device_list_from_udev = 0 if:
+	 *   - udev is not running
+	 *   - udev is disabled using DM_DISABLE_UDEV environment variable
+	 */
+	if (_check_disable_udev("obtain device list by scanning device directory"))
+		device_list_from_udev = 0;
+	else
+		device_list_from_udev = udev_is_running() ?
+			find_config_tree_bool(cmd, devices_obtain_device_list_from_udev_CFG, NULL) : 0;

 	init_obtain_device_list_from_udev(device_list_from_udev);

@@ -1143,9 +1081,26 @@ static struct dev_filter *_init_filter_chain(struct cmd_context *cmd)
 	 * Update MAX_FILTERS definition above when adding new filters.
 	 */

+	/*
+	 * sysfs filter. Only available on 2.6 kernels.  Non-critical.
+	 * Listed first because it's very efficient at eliminating
+	 * unavailable devices.
+	 */
+	if (find_config_tree_bool(cmd, devices_sysfs_scan_CFG, NULL)) {
+		if ((filters[nr_filt] = sysfs_filter_create()))
+			nr_filt++;
+	}
+
+	/* internal filter used by command processing. */
+	if (!(filters[nr_filt] = internal_filter_create())) {
+		log_error("Failed to create internal device filter");
+		goto bad;
+	}
+	nr_filt++;
+
 	/* global regex filter. Optional. */
 	if ((cn = find_config_tree_node(cmd, devices_global_filter_CFG, NULL))) {
-		if (!(filters[nr_filt] = regex_filter_create(cn->v, 0, 1))) {
+		if (!(filters[nr_filt] = regex_filter_create(cn->v))) {
 			log_error("Failed to create global regex device filter");
 			goto bad;
 		}
@@ -1154,7 +1109,7 @@ static struct dev_filter *_init_filter_chain(struct cmd_context *cmd)

 	/* regex filter. Optional. */
 	if ((cn = find_config_tree_node(cmd, devices_filter_CFG, NULL))) {
-		if (!(filters[nr_filt] = regex_filter_create(cn->v, 1, 0))) {
+		if (!(filters[nr_filt] = regex_filter_create(cn->v))) {
 			log_error("Failed to create regex device filter");
 			goto bad;
 		}
@@ -1168,24 +1123,6 @@ static struct dev_filter *_init_filter_chain(struct cmd_context *cmd)
 	}
 	nr_filt++;

-	/* filter based on the device_ids saved in the devices file */
-	if (!(filters[nr_filt] = deviceid_filter_create(cmd))) {
-		log_error("Failed to create deviceid device filter");
-		goto bad;
-	}
-	nr_filt++;
-
-	/*
-	 * sysfs filter. Only available on 2.6 kernels.  Non-critical.
-	 * Eliminates unavailable devices.
-	 * TODO: this may be unnecessary now with device ids
-	 * (currently not used for devs match to device id using syfs)
-	 */
-	if (find_config_tree_bool(cmd, devices_sysfs_scan_CFG, NULL)) {
-		if ((filters[nr_filt] = sysfs_filter_create()))
-			nr_filt++;
-	}
-
 	/* usable device filter. Required. */
 	if (!(filters[nr_filt] = usable_filter_create(cmd, cmd->dev_types, FILTER_MODE_NO_LVMETAD))) {
 		log_error("Failed to create usabled device filter");
@@ -1227,7 +1164,7 @@ static struct dev_filter *_init_filter_chain(struct cmd_context *cmd)
 			nr_filt++;
 	}

-	if (!(composite = composite_filter_create(nr_filt, filters)))
+	if (!(composite = composite_filter_create(nr_filt, 1, filters)))
 		goto_bad;

 	return composite;
@@ -1339,7 +1276,7 @@ int init_lvmcache_orphans(struct cmd_context *cmd)
 	struct format_type *fmt;

 	dm_list_iterate_items(fmt, &cmd->formats)
-		if (!lvmcache_add_orphan_vginfo(cmd, fmt->orphan_vg_name, fmt))
+		if (!lvmcache_add_orphan_vginfo(fmt->orphan_vg_name, fmt))
 			return_0;

 	return 1;
@@ -1548,7 +1485,6 @@ int init_run_by_dmeventd(struct cmd_context *cmd)
 	init_dmeventd_monitor(DMEVENTD_MONITOR_IGNORE);
 	init_ignore_suspended_devices(1);
 	init_disable_dmeventd_monitoring(1); /* Lock settings */
-	cmd->run_by_dmeventd = 1;

 	return 0;
 }
@@ -1596,6 +1532,7 @@ struct cmd_context *create_config_context(void)

 	dm_list_init(&cmd->config_files);
 	dm_list_init(&cmd->tags);
+	dm_list_init(&cmd->hints);

 	if (!_init_lvm_conf(cmd))
 		goto_out;
@@ -1645,6 +1582,8 @@ struct cmd_context *create_toolcontext(unsigned is_clvmd,
 	bindtextdomain(INTL_PACKAGE, LOCALEDIR);
 #endif

+	init_syslog(DEFAULT_LOG_FACILITY);
+
 	if (!(cmd = zalloc(sizeof(*cmd)))) {
 		log_error("Failed to allocate command context");
 		return NULL;
@@ -1655,7 +1594,6 @@ struct cmd_context *create_toolcontext(unsigned is_clvmd,
 	cmd->handles_missing_pvs = 0;
 	cmd->handles_unknown_segments = 0;
 	cmd->hosttags = 0;
-	cmd->check_devs_used = 1;
 	dm_list_init(&cmd->arg_value_groups);
 	dm_list_init(&cmd->formats);
 	dm_list_init(&cmd->segtypes);
@@ -1778,8 +1716,6 @@ struct cmd_context *create_toolcontext(unsigned is_clvmd,
 	if (!_init_dev_cache(cmd))
 		goto_out;

-	devices_file_init(cmd);
-
 	memlock_init(cmd);

 	if (!_init_formats(cmd))
@@ -1984,8 +1920,6 @@ int refresh_toolcontext(struct cmd_context *cmd)
 	if (!_init_dev_cache(cmd))
 		return_0;

-	devices_file_init(cmd);
-
 	if (!_init_formats(cmd))
 		return_0;

@@ -2033,17 +1967,24 @@ void destroy_toolcontext(struct cmd_context *cmd)
 	_destroy_segtypes(&cmd->segtypes);
 	_destroy_formats(cmd, &cmd->formats);
 	_destroy_filters(cmd);
+	if (cmd->mem)
+		dm_pool_destroy(cmd->mem);
 	dev_cache_exit();
 	_destroy_dev_types(cmd);
 	_destroy_tags(cmd);

 	if ((cft_cmdline = remove_config_tree_by_source(cmd, CONFIG_STRING)))
 		config_destroy(cft_cmdline);
+	_destroy_config(cmd);

 	if (cmd->cft_def_hash)
 		dm_hash_destroy(cmd->cft_def_hash);

-	dm_device_list_destroy(&cmd->cache_dm_devs);
+	if (cmd->libmem)
+		dm_pool_destroy(cmd->libmem);
+
+	if (cmd->pending_delete_mem)
+		dm_pool_destroy(cmd->pending_delete_mem);
 #ifndef VALGRIND_POOL
 	if (cmd->linebuffer) {
 		/* Reset stream buffering to defaults */
@@ -2068,7 +2009,7 @@ void destroy_toolcontext(struct cmd_context *cmd)
 		free(cmd->linebuffer);
 	}
 #endif
-	destroy_config_context(cmd);
+	free(cmd);

 	lvmpolld_disconnect();

--- a/lib/commands/toolcontext.h
+++ b/lib/commands/toolcontext.h
@@ -18,7 +18,6 @@

 #include "lib/device/dev-cache.h"
 #include "lib/device/dev-type.h"
-#include "lib/commands/cmd_enum.h"

 #include <limits.h>

@@ -30,9 +29,7 @@ struct config_info {
 	int debug_classes;
 	int verbose;
 	int silent;
-	int suppress;
 	int test;
-	int yes;
 	int syslog;
 	int activation;
 	int suffix;
@@ -42,8 +39,7 @@ struct config_info {
 	int udev_rules;
 	int udev_sync;
 	int udev_fallback;
-	int issue_discards;
-	uint32_t journal;
+	int cache_vgmetadata;
 	const char *msg_prefix;
 	const char *fmt_name;
 	const char *dmeventd_executable;
@@ -95,7 +91,6 @@ struct cmd_context {
 	const char *name; /* needed before cmd->command is set */
 	struct command_name *cname;
 	struct command *command;
-	int command_enum; /* duplicate from command->command_enum for lib code */
 	char **argv;
 	struct arg_values *opt_arg_values;
 	struct dm_list arg_value_groups;
@@ -146,7 +141,6 @@ struct cmd_context {
 	unsigned degraded_activation:1;
 	unsigned auto_set_activation_skip:1;
 	unsigned si_unit_consistency:1;
-	unsigned report_strict_type_mode:1;
 	unsigned report_binary_values_as_numeric:1;
 	unsigned report_mark_hidden_devices:1;
 	unsigned metadata_read_only:1;
@@ -177,7 +171,7 @@ struct cmd_context {
 	unsigned activate_component:1;		/* command activates component LV */
 	unsigned process_component_lvs:1;	/* command processes also component LVs */
 	unsigned mirror_warn_printed:1;		/* command already printed warning about non-monitored mirrors */
-	unsigned expect_missing_vg_device:1;	/* when reading a vg it's expected that a dev for a pv isn't found */
+	unsigned pvscan_cache_single:1;
 	unsigned can_use_one_scan:1;
 	unsigned is_clvmd:1;
 	unsigned md_component_detection:1;
@@ -188,37 +182,13 @@ struct cmd_context {
 	unsigned pvscan_recreate_hints:1;	/* enable special case hint handling for pvscan --cache */
 	unsigned scan_lvs:1;
 	unsigned wipe_outdated_pvs:1;
-	unsigned enable_devices_list:1;		/* command is using --devices option */
-	unsigned enable_devices_file:1;		/* command is using devices file */
-	unsigned pending_devices_file:1;	/* command may create and enable devices file */
-	unsigned create_edit_devices_file:1;	/* command expects to create and/or edit devices file */
-	unsigned edit_devices_file:1;		/* command expects to edit devices file */
-	unsigned filter_deviceid_skip:1;	/* don't use filter-deviceid */
-	unsigned filter_regex_with_devices_file:1; /* use filter-regex even when devices file is enabled */
-	unsigned filter_nodata_only:1;          /* only use filters that do not require data from the dev */
-	unsigned run_by_dmeventd:1;		/* command is being run by dmeventd */
-	unsigned sysinit:1;			/* --sysinit is used */
-	unsigned ignorelockingfailure:1;	/* --ignorelockingfailure is used */
-	unsigned check_devs_used:1;		/* check devs used by LVs */
-	unsigned print_device_id_not_found:1;	/* print devices file entries not found */
-	unsigned ignore_device_name_mismatch:1; /* skip updating devices file names */
-	unsigned backup_disabled:1;		/* skip repeated debug message */
-	unsigned event_activation:1;		/* whether event_activation is set */
-	unsigned udevoutput:1;
-	unsigned online_vg_file_removed:1;
-	unsigned disable_dm_devs:1;		/* temporarily disable use of dm devs cache */

 	/*
 	 * Devices and filtering.
 	 */
 	struct dev_filter *filter;
-	struct dm_list use_devices;		/* struct dev_use for each entry in devices file */
+	struct dm_list hints;
 	const char *md_component_checks;
-	const char *search_for_devnames;	/* config file setting */
-	const char *devicesfile;                /* from --devicesfile option */
-	struct dm_list deviceslist;             /* from --devices option, struct dm_str_list */
-
-	struct dm_list *cache_dm_devs;		/* cache with UUIDs from DM_DEVICE_LIST (when available) */

 	/*
 	 * Configuration.
@@ -250,7 +220,6 @@ struct cmd_context {
 	char system_dir[PATH_MAX];
 	char dev_dir[PATH_MAX];
 	char proc_dir[PATH_MAX];
-	char devices_file_path[PATH_MAX];

 	/*
 	 * Reporting.
--- a/lib/config/config.c
+++ b/lib/config/config.c
@@ -501,15 +501,12 @@ int config_file_read_fd(struct dm_config_tree *cft, struct device *dev, dev_io_r
 			checksum_fn_t checksum_fn, uint32_t checksum,
 			int checksum_only, int no_dup_node_check)
 {
-	char namebuf[NAME_LEN + 1] __attribute__((aligned(8)));
-	int namelen = 0;
-	int bad_name = 0;
 	char *fb, *fe;
 	int r = 0;
-	int sz, use_plain_read = 1;
+	int use_mmap = 1;
+	off_t mmap_offset = 0;
 	char *buf = NULL;
 	struct config_source *cs = dm_config_get_custom(cft);
-	size_t rsize;

 	if (!_is_file_based_config_source(cs->type)) {
 		log_error(INTERNAL_ERROR "config_file_read_fd: expected file, special file "
@@ -518,30 +515,26 @@ int config_file_read_fd(struct dm_config_tree *cft, struct device *dev, dev_io_r
 		return 0;
 	}

-	/* Only use plain read with regular files */
+	/* Only use mmap with regular files */
 	if (!(dev->flags & DEV_REGULAR) || size2)
-		use_plain_read = 0;
+		use_mmap = 0;

-	/* Ensure there is extra '\0' after end of buffer since we pass
-	 * buffer to funtions like strtoll() */
-	if (!(buf = zalloc(size + size2 + 1))) {
-		log_error("Failed to allocate circular buffer.");
-		return 0;
-	}
-
-	if (use_plain_read) {
-		/* Note: also used for lvm.conf to read all settings */
-		for (rsize = 0; rsize < size; rsize += sz) {
-			do {
-				sz = read(dev_fd(dev), buf + rsize, size - rsize);
-			} while ((sz < 0) && ((errno == EINTR) || (errno == EAGAIN)));
-
-			if (sz < 0) {
-				log_sys_error("read", dev_name(dev));
-				goto out;
-			}
+	if (use_mmap) {
+		mmap_offset = offset % lvm_getpagesize();
+		/* memory map the file */
+		fb = mmap((caddr_t) 0, size + mmap_offset, PROT_READ,
+			  MAP_PRIVATE, dev_fd(dev), offset - mmap_offset);
+		if (fb == (caddr_t) (-1)) {
+			log_sys_error("mmap", dev_name(dev));
+			goto out;
 		}
+		fb = fb + mmap_offset;
 	} else {
+		if (!(buf = malloc(size + size2))) {
+			log_error("Failed to allocate circular buffer.");
+			return 0;
+		}
+
 		if (!dev_read_bytes(dev, offset, size, buf))
 			goto out;

@@ -549,25 +542,8 @@ int config_file_read_fd(struct dm_config_tree *cft, struct device *dev, dev_io_r
 			if (!dev_read_bytes(dev, offset2, size2, buf + size))
 				goto out;
 		}
-	}

-	fb = buf;
-
-	if (!(dev->flags & DEV_REGULAR)) {
-		memcpy(namebuf, buf, NAME_LEN);
-
-		while (namebuf[namelen] && !isspace(namebuf[namelen]) && namebuf[namelen] != '{' && namelen < (NAME_LEN - 1))
-			namelen++;
-		namebuf[namelen] = '\0';
-
-		/*
-		 * Check that the text metadata begins with a valid name.
-		 */
-		if (!validate_name(namebuf)) {
-			log_warn("WARNING: Metadata location on %s at offset %llu begins with invalid name.",
-				 dev_name(dev), (unsigned long long)offset);
-			bad_name = 1;
-		}
+		fb = buf;
 	}

 	/*
@@ -579,13 +555,10 @@ int config_file_read_fd(struct dm_config_tree *cft, struct device *dev, dev_io_r
 	if (checksum_fn && checksum !=
 	    (checksum_fn(checksum_fn(INITIAL_CRC, (const uint8_t *)fb, size),
 			 (const uint8_t *)(fb + size), size2))) {
-		log_warn("WARNING: Checksum error on %s at offset %llu.", dev_name(dev), (unsigned long long)offset);
+		log_error("%s: Checksum error at offset %" PRIu64, dev_name(dev), (uint64_t) offset);
 		goto out;
 	}

-	if (bad_name)
-		goto out;
-
 	if (!checksum_only) {
 		fe = fb + size + size2;
 		if (no_dup_node_check) {
@@ -600,7 +573,15 @@ int config_file_read_fd(struct dm_config_tree *cft, struct device *dev, dev_io_r
 	r = 1;

      out:
-	free(buf);
+	if (!use_mmap)
+		free(buf);
+	else {
+		/* unmap the file */
+		if (munmap(fb - mmap_offset, size + mmap_offset)) {
+			log_sys_error("munmap", dev_name(dev));
+			r = 0;
+		}
+	}

 	return r;
 }
@@ -735,7 +716,7 @@ static struct dm_config_value *_get_def_array_values(struct cmd_context *cmd,
 		return array;
 	}

-	if (!(token = enc_value = strdup(def_enc_value))) {
+	if (!(p = token = enc_value = strdup(def_enc_value))) {
 		log_error("_get_def_array_values: strdup failed");
 		return NULL;
 	}
@@ -934,7 +915,7 @@ static int _check_value_differs_from_default(struct cft_check_handle *handle,
 				} else {
 					str = v_def ? v_def->v.str
 						    : cfg_def_get_default_value(handle->cmd, def, CFG_TYPE_STRING, NULL);
-					diff = str ? strcmp(str, v->v.str) : 0;
+					diff = strcmp(str, v->v.str);
 				}
 				break;
 			case DM_CFG_EMPTY_ARRAY:
@@ -1166,10 +1147,8 @@ int config_def_check(struct cft_check_handle *handle)
 	 * sections and settings with full path as a key.
 	 * If section name is variable, use '#' as a substitute.
 	 */
-	*vp = 0;
-	*rp = 0;
 	if (!handle->cmd->cft_def_hash) {
-		if (!(handle->cmd->cft_def_hash = dm_hash_create(500))) {
+		if (!(handle->cmd->cft_def_hash = dm_hash_create(64))) {
 			log_error("Failed to create configuration definition hash.");
 			r = 0; goto out;
 		}
@@ -1735,7 +1714,6 @@ static int _out_prefix_fn(const struct dm_config_node *cn, const char *line, voi
 	const char *node_type_name = cn->v ? "option" : "section";
 	char path[CFG_PATH_MAX_LEN];
 	char commentline[MAX_COMMENT_LINE+1];
-	int is_deprecated = 0;

 	if (cn->id <= 0)
 		return 1;
@@ -1749,14 +1727,13 @@ static int _out_prefix_fn(const struct dm_config_node *cn, const char *line, voi

 	cfg_def = cfg_def_get_item_p(cn->id);

-	is_deprecated = _def_node_is_deprecated(cfg_def, out->tree_spec);
-
 	if (out->tree_spec->withsummary || out->tree_spec->withcomments) {
 		_cfg_def_make_path(path, sizeof(path), cfg_def->id, cfg_def, 1);
 		fprintf(out->fp, "\n");
 		fprintf(out->fp, "%s# Configuration %s %s.\n", line, node_type_name, path);

-		if (out->tree_spec->withcomments && is_deprecated && cfg_def->deprecation_comment)
+		if (out->tree_spec->withcomments &&
+		    _def_node_is_deprecated(cfg_def, out->tree_spec))
 			fprintf(out->fp, "%s# %s", line, cfg_def->deprecation_comment);

 		if (cfg_def->comment) {
@@ -1767,14 +1744,14 @@ static int _out_prefix_fn(const struct dm_config_node *cn, const char *line, voi
 						continue;
 					commentline[0] = '\0';
 				}
-				fprintf(out->fp, "%s#%s%s\n", line, commentline[0] ? " " : "", commentline);
+				fprintf(out->fp, "%s# %s\n", line, commentline);
 				/* withsummary prints only the first comment line. */
 				if (!out->tree_spec->withcomments)
 					break;
 			}
 		}

-		if (is_deprecated)
+		if (_def_node_is_deprecated(cfg_def, out->tree_spec))
 			fprintf(out->fp, "%s# This configuration %s is deprecated.\n", line, node_type_name);

 		if (cfg_def->flags & CFG_ADVANCED)
@@ -1802,7 +1779,7 @@ static int _out_prefix_fn(const struct dm_config_node *cn, const char *line, voi
 			return_0;
 		fprintf(out->fp, "%s# Available since version %s.\n", line, version);

-		if (is_deprecated) {
+		if (_def_node_is_deprecated(cfg_def, out->tree_spec)) {
 			if (!_get_config_node_version(cfg_def->deprecated_since_version, version))
 				return_0;
 			fprintf(out->fp, "%s# Deprecated since version %s.\n", line, version);
@@ -1830,9 +1807,8 @@ static int _out_line_fn(const struct dm_config_node *cn, const char *line, void
 	char summary[MAX_COMMENT_LINE+1];
 	char version[9];
 	int pos = 0;
-	int space_prefix_len = 0;
-	const char *p;
 	size_t len;
+	char *space_prefix;

 	if ((out->tree_spec->type == CFG_DEF_TREE_DIFF) &&
 	    (!(out->tree_spec->check_status[cn->id] & CFG_DIFF)))
@@ -1866,36 +1842,16 @@ static int _out_line_fn(const struct dm_config_node *cn, const char *line, void

 	/* Usual tree view with nodes and their values. */

-	if (out->tree_spec->valuesonly && !(cfg_def->type & CFG_TYPE_SECTION)) {
-		if ((space_prefix_len = strspn(line, "\t "))) {
-			len = strlen(line);
-			p = line + space_prefix_len;
-
-			/* copy space_prefix, skip key and '=', copy value */
-			if (!dm_pool_begin_object(out->mem, len))
-				return_0;
-
-			if (!dm_pool_grow_object(out->mem, line, space_prefix_len) ||
-			    !dm_pool_grow_object(out->mem, p + strcspn(p, "=") + 1, len + 1)) {
-				dm_pool_abandon_object(out->mem);
-				return_0;
-			}
-
-			line = dm_pool_end_object(out->mem);
-		} else
-			line = strchr(line, '=') + 1;
-	}
-
 	if ((out->tree_spec->type != CFG_DEF_TREE_CURRENT) &&
 	    (out->tree_spec->type != CFG_DEF_TREE_DIFF) &&
 	    (out->tree_spec->type != CFG_DEF_TREE_FULL) &&
-	    !out->tree_spec->valuesonly &&
 	    (cfg_def->flags & (CFG_DEFAULT_UNDEFINED | CFG_DEFAULT_COMMENTED))) {
 		/* print with # at the front to comment out the line */
 		if (_should_print_cfg_with_undef_def_val(out, cfg_def, cn)) {
-			space_prefix_len = strspn(line, "\t ");
-			fprintf(out->fp, "%.*s%s%s\n", space_prefix_len, line, "# ",
-				line + space_prefix_len);
+			space_prefix = ((len = strspn(line, "\t "))) ? dm_pool_strndup(out->mem, line, len) : NULL;
+			fprintf(out->fp, "%s%s%s\n", space_prefix ? : "", "# ", line + len);
+			if (space_prefix)
+				dm_pool_free(out->mem, space_prefix);
 		}
 		return 1;
 	}
@@ -1904,9 +1860,6 @@ static int _out_line_fn(const struct dm_config_node *cn, const char *line, void
 	if (_should_print_cfg_with_undef_def_val(out, cfg_def, cn))
 		fprintf(out->fp, "%s\n", line);

-	if (out->tree_spec->valuesonly && !(cfg_def->type & CFG_TYPE_SECTION) && space_prefix_len)
-		dm_pool_free(out->mem, (char *) line);
-
 	return 1;
 }

--- a/lib/config/config.h
+++ b/lib/config/config.h
@@ -176,7 +176,6 @@ struct config_def_tree_spec {
 	unsigned unconfigured:1;		/* use unconfigured path strings */
 	unsigned withgeneralpreamble:1;		/* include preamble for a general config file */
 	unsigned withlocalpreamble:1;		/* include preamble for a local config file */
-	unsigned valuesonly:1;                  /* print only values without keys */
 	uint8_t *check_status;			/* status of last tree check (currently needed for CFG_DEF_TREE_MISSING only) */
 };

--- a/Show More
+++ b/Show More