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David Teigland 9048565093 devices: rework libudev usage
related to config settings:
  obtain_device_info_from_udev (controls if lvm gets
    a list of devices from readdir /dev or from libudev)
  external_device_info_source (controls if lvm asks
    libudev for device information)

. Make the obtain_device_list_from_udev setting
  affect only the choice of readdir /dev vs libudev.
  The setting no longer controls if udev is used for
  device type checks.

. Change obtain_device_list_from_udev default to 0.
  This helps avoid boot timeouts due to slow libudev
  queries, avoids reported failures from
  udev_enumerate_scan_devices, and avoids delays from
  "device not initialized in udev database" errors.
  Even without errors, for a system booting with 1024 PVs,
  lvm2-pvscan times improve from about 100 sec to 15 sec,
  and the pvscan command from about 64 sec to about 4 sec.

. For external_device_info_source="none", remove all
  libudev device info queries, and use only lvm
  native device info.

. For external_device_info_source="udev", first check
  lvm native device info, then check libudev info.

. Remove sleep/retry loop when attempting libudev
  queries for device info.  udev info will simply
  be skipped if it's not immediately available.

. Only set up a libdev connection if it will be used by
  obtain_device_list_from_udev/external_device_info_source.

. For native multipath component detection, use
  /etc/multipath/wwids.  If a device has a wwid
  matching an entry in the wwids file, then it's
  considered a multipath component.  This is
  necessary to natively detect multipath
  components when the mpath device is not set up.
2021-07-13 11:11:23 -05:00
autoconf autoconf: Fix py-compile permissions 2016-02-18 01:05:05 +00:00
base hash: replace hash with better function 2021-03-08 15:33:15 +01:00
conf vdo: support vdo_pool_header_size 2021-06-28 20:41:07 +02:00
coverity cov: drop model for origin_from_cow 2020-09-12 13:23:49 +02:00
daemons lvmdbusd: Wrap json.load in try/except 2021-06-17 09:14:29 -05:00
device_mapper clang: always initialized values 2021-04-23 23:00:55 +02:00
doc all: fix typos 2021-03-30 13:08:14 +02:00
include vdo: add vdoimport support 2021-07-09 14:57:59 +02:00
lib devices: rework libudev usage 2021-07-13 11:11:23 -05:00
libdaemon daemon-server: handle reaping threads better 2021-04-06 21:26:57 +02:00
libdm clang: always initialized values 2021-04-23 23:00:55 +02:00
man man: vdoimport page 2021-07-09 20:50:40 +02:00
nix lockd: Clean up spec 2015-07-04 14:36:57 +02:00
po makefiles: fix pofile generation 2021-03-02 22:54:40 +01:00
scripts vdo: add vdoimport support 2021-07-09 14:57:59 +02:00
spec vdo: add vdoimport support 2021-07-09 14:57:59 +02:00
test vdo: add vdoimport support 2021-07-09 14:57:59 +02:00
tools devices: rework libudev usage 2021-07-13 11:11:23 -05:00
udev udev rule: remove lvmetad comments 2020-11-25 16:57:54 -06:00
.gitignore git: update .gitignore 2021-03-19 23:21:18 +01:00
acinclude.m4 [build] uncomment 'serial 3' in an m4 file. 2018-04-30 09:44:27 +01:00
aclocal.m4 configure: update 2020-12-11 12:16:16 +01:00
configure vdo: add vdoimport support 2021-07-09 14:57:59 +02:00
configure.ac vdo: add vdoimport support 2021-07-09 14:57:59 +02:00
COPYING doc: change fsf address 2016-01-21 12:11:37 +01:00
COPYING.BSD Add BSD 2-Clause License 2018-07-27 17:09:46 +02:00
COPYING.LIB Fix inconsistent licence notices: executables are GPLv2; libraries LGPLv2.1. 2007-08-20 20:55:30 +00:00
INSTALL quick review of docs 2008-11-04 17:49:22 +00:00
make.tmpl.in makefiles: add devmapper for devmapper-event 2021-04-12 10:35:55 +02:00
Makefile.in makefiles: reuse CSCOPE_DIRS for ctags 2021-04-12 09:54:16 +02:00
README Update README 2020-08-12 12:05:36 +02:00
TESTING docs: Add TESTING file 2017-12-14 16:45:47 +01:00
VERSION post-release 2021-05-07 23:09:15 +02:00
VERSION_DM post-release 2021-05-07 23:09:15 +02:00
WHATS_NEW vdo: add vdoimport support 2021-07-09 14:57:59 +02:00
WHATS_NEW_DM post-release 2021-05-07 23:09:15 +02:00

This tree contains the LVM2 and device-mapper tools and libraries.

This is development branch, for stable 2.02 release see stable-2.02 branch.

For more information about LVM2 read the changelog in the WHATS_NEW file.
Installation instructions are in INSTALL.

There is no warranty - see COPYING and COPYING.LIB.

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

The source code is stored in git:
  https://sourceware.org/git/?p=lvm2.git
  git clone git://sourceware.org/git/lvm2.git
mirrored to:
  https://github.com/lvmteam/lvm2
  git clone https://github.com/lvmteam/lvm2.git
  git clone git@github.com:lvmteam/lvm2.git

Mailing list for general discussion related to LVM2:
  linux-lvm@redhat.com
  Subscribe from https://www.redhat.com/mailman/listinfo/linux-lvm

Mailing lists for LVM2 development, patches and commits:
  lvm-devel@redhat.com
  Subscribe from https://www.redhat.com/mailman/listinfo/lvm-devel

  lvm2-commits@lists.fedorahosted.org (Read-only archive of commits)
  Subscribe from https://fedorahosted.org/mailman/listinfo/lvm2-commits

Mailing list for device-mapper development, including kernel patches
and multipath-tools:
  dm-devel@redhat.com
  Subscribe from https://www.redhat.com/mailman/listinfo/dm-devel

Website:
  https://sourceware.org/lvm2/

Report upstream bugs at:
  https://bugzilla.redhat.com/enter_bug.cgi?product=LVM%20and%20device-mapper
or open issues at:
  https://github.com/lvmteam/lvm2/issues

The source code repository used until 7th June 2012 is accessible using CVS:

  cvs -d :pserver:cvs@sourceware.org:/cvs/lvm2 login cvs
  cvs -d :pserver:cvs@sourceware.org:/cvs/lvm2 checkout LVM2

The password is cvs.