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Commit Graph

35 Commits

Author SHA1 Message Date
Zdenek Kabelac
0b19387dae headers: use configure.h as 1st. header
Ensure configure.h is always 1st. included header.
Maybe we could eventually introduce gcc -include option, but for now
this better uses dependency tracking.

Also move _REENTRANT and _GNU_SOURCE into configure.h so it
doesn't need to be present in various source files.
This ensures consistent compilation of headers like stdio.h since
it may produce different declaration.
2018-12-14 15:09:13 +01:00
Marian Csontos
92b0d014aa build: Upse PYTHON_CONFIG env.variable when set
This adds up to Commit 6462e8dffc.
2018-12-06 09:02:47 +01:00
David Teigland
904e1e3d26 Place the first PE at 1 MiB for all defaults
. When using default settings, this commit should change
  nothing.  The first PE continues to be placed at 1 MiB
  resulting in a metadata area size of 1020 KiB (for
  4K page sizes; slightly smaller for larger page sizes.)

. When default_data_alignment is disabled in lvm.conf,
  align pe_start at 1 MiB, based on a default metadata area
  size that adapts to the page size.  Previously, disabling
  this option would result in mda_size that was too small
  for common use, and produced a 64 KiB aligned pe_start.

. Customized pe_start and mda_size values continue to be
  set as before in lvm.conf and command line.

. Remove the configure option for setting default_data_alignment
  at build time.

. Improve alignment related option descriptions.

. Add section about alignment to pvcreate man page.

Previously, DEFAULT_PVMETADATASIZE was 255 sectors.
However, the fact that the config setting named
"default_data_alignment" has a default value of 1 (MiB)
meant that DEFAULT_PVMETADATASIZE was having no effect.

The metadata area size is the space between the start of
the metadata area (page size offset from the start of the
device) and the first PE (1 MiB by default due to
default_data_alignment 1.)  The result is a 1020 KiB metadata
area on machines with 4KiB page size (1024 KiB - 4 KiB),
and smaller on machines with larger page size.

If default_data_alignment was set to 0 (disabled), then
DEFAULT_PVMETADATASIZE 255 would take effect, and produce a
metadata area that was 188 KiB and pe_start of 192 KiB.
This was too small for common use.

This is fixed by making the default metadata area size a
computed value that matches the value produced by
default_data_alignment.
2018-11-26 16:36:50 -06:00
David Teigland
4b5d6de86b pvscan systemd service for event based activation
The pvscan systemd service for autoactivation was
mistakenly dropped along with the lvmetad related
services.

The activation generator program now looks at the new
lvm.conf setting "event_activation" (default 1) to
switch between event activation and direct activation.

Previously, the old use_lvmetad setting was used to
switch between event and direct activation.
2018-11-26 14:33:31 -06:00
David Teigland
3ae5569570 Add dm-writecache support
dm-writecache is used like dm-cache with a standard LV
as the cache.

$ lvcreate -n main -L 128M -an foo /dev/loop0

$ lvcreate -n fast -L 32M -an foo /dev/pmem0

$ lvconvert --type writecache --cachepool fast foo/main

$ lvs -a foo -o+devices
  LV            VG  Attr       LSize   Origin        Devices
  [fast]        foo -wi-------  32.00m               /dev/pmem0(0)
  main          foo Cwi------- 128.00m [main_wcorig] main_wcorig(0)
  [main_wcorig] foo -wi------- 128.00m               /dev/loop0(0)

$ lvchange -ay foo/main

$ dmsetup table
foo-main_wcorig: 0 262144 linear 7:0 2048
foo-main: 0 262144 writecache p 253:4 253:3 4096 0
foo-fast: 0 65536 linear 259:0 2048

$ lvchange -an foo/main

$ lvconvert --splitcache foo/main

$ lvs -a foo -o+devices
  LV   VG  Attr       LSize   Devices
  fast foo -wi-------  32.00m /dev/pmem0(0)
  main foo -wi------- 128.00m /dev/loop0(0)
2018-11-06 14:18:41 -06:00
Marian Csontos
1e40e734e6 build: Fix CLDFLAGS default 2018-10-30 10:15:44 +01:00
Marian Csontos
6462e8dffc build: Use PYTHON env. variable when provided 2018-10-10 13:27:16 +02:00
David Teigland
19a59cc53c More cleanup needed for dropped scripts
and drop the lvm2 prefix from lvmlockd service
2018-09-13 11:09:25 -05:00
Peter Rajnoha
a0f6f18841 configure: fix LVMCONFIG_PATH assignment 2018-08-30 13:14:10 +02:00
David Teigland
117160b27e Remove lvmetad
Native disk scanning is now both reduced and
async/parallel, which makes it comparable in
performance (and often faster) when compared
to lvm using lvmetad.

Autoactivation now uses local temp files to record
online PVs, and no longer requires lvmetad.

There should be no apparent command-level change
in behavior.
2018-07-11 11:26:42 -05:00
Zdenek Kabelac
4a90b0c4c9 build: add vdo configuration option --with-vdo=
Checks whether VDO support is enabled.
Detects presence of 'vdoformat' tool which is required for to format VDO pool.

ATM build of VDO is NOT automatically enabled (None is default).
To enable build of LVM with VDO support use:

configure --with-vdo=internal

TODO: Maybe future version may switch to link some small VDO library for formating
(would require linking and package dependency).
2018-07-09 15:28:35 +02:00
Zdenek Kabelac
80e6097ea6 dmeventd: base vdo plugin
Introduce VDO plugin for monitoring VDO devices.

This plugin can be used also by other users, as plugin checks
for UUID prefix 'LVM-' and run  lvm actions only on those
devices.

Non LVM- device are only monitored and log warnings
when usage threshold reaches 80%.
2018-07-09 15:28:32 +02:00
Zdenek Kabelac
6c84a36b53 utils: add clzll
Check for __builtin_clzll and add wrapper when missing.
2018-06-22 23:37:02 +02:00
Zdenek Kabelac
fa58fc3257 build: support --disable-silent-rules
Add support for standardized option for have verbose builds.
Useful for distro builds where more details can be useful.
2018-06-22 23:36:19 +02:00
Joe Thornber
fededfbbbc dmfilemapd: Move to libdm/dm-tools
No longer uses any lvm code.
2018-06-14 14:27:19 +01:00
Joe Thornber
0524829af6 dmsetup: move to libdm/dm-tools/dmsetup
links against libdevmapper again.
no longer includes code from lvm.
2018-06-14 13:10:17 +01:00
David Teigland
9b79f0244a Remove makefile entries for removed script 2018-06-13 15:04:26 -05:00
David Teigland
ae961a192a Remove python bindings for liblvm2app 2018-06-08 10:33:47 -05:00
Joe Thornber
9573ff3a3b test/unit: Rename Makefile.in -> Makefile
There's nothing being expanded.
2018-06-08 09:50:40 +01:00
Joe Thornber
0d22b58172 liblvm: remove lvmapi
This has been deprecated for a while.
2018-06-08 09:38:05 +01:00
Joe Thornber
bd8c6cf862 scripts/lvm2_activation_generator_systemd_red_hat: rewrite to use lvmconfig
Unit tested the new code, but not run functional tests (assuming they exist).
2018-06-07 16:15:04 +01:00
David Teigland
3e781ea446 Remove clvmd and associated code
More code reduction and simplification can follow.
2018-06-05 11:09:13 -05:00
Joe Thornber
89fdc0b588 Merge branch 'master' into 2018-05-11-fork-libdm 2018-05-16 13:43:02 +01:00
Joe Thornber
ccc35e2647 device-mapper: Fork libdm internally.
The device-mapper directory now holds a copy of libdm source.  At
the moment this code is identical to libdm.  Over time code will
migrate out to appropriate places (see doc/refactoring.txt).

The libdm directory still exists, and contains the source for the
libdevmapper shared library, which we will continue to ship (though
not neccessarily update).

All code using libdm should now use the version in device-mapper.
2018-05-16 13:00:50 +01:00
Zdenek Kabelac
be154e30e8 tests: move into generated file
Since python path is evaluated and we cannot use anymore /usr/bin/env
switch to generated file.
2018-05-15 22:02:41 +02:00
Zdenek Kabelac
ad756bb708 build: configure detect libaio
No point to start building lvm without this header file.

Although there could be 'some point' in supporting standalone build
of 'just' libdm  where the libaio might be avoided.

TODO: think about configure option for building libdm only.
2018-05-15 22:02:41 +02:00
Joe Thornber
7f97c7ea9a build: Don't generate symlinks in include/ dir
As we start refactoring the code to break dependencies (see doc/refactoring.txt),
I want us to use full paths in the includes (eg, #include "base/data-struct/list.h").
This makes it more obvious when we're breaking abstraction boundaries, eg, including a file in
metadata/ from base/
2018-05-14 10:30:20 +01:00
Zdenek Kabelac
79b2961399 build: rename device-mapper to device_mapper
As Makefiles already do use target with name 'device-mapper'
rename this new device-mapper dir to non-conflicting name.
We also seem to already use '_' in other dir names.

Also rename device_mapper/Makefile to source for generating Makefile.in
so we can use it for build in other source dirs properly.
2018-05-12 18:18:23 +02:00
Joe Thornber
b393fbec00 configure.ac: bad configure generated due to stray ;; 2018-05-03 15:38:05 +01:00
Joe Thornber
9cab005797 configure.ac: Remove some more remnants of optional RAID
(It's now always 'internal')
2018-05-03 14:21:21 +01:00
Joe Thornber
1553993ea1 Revert "build: Stop creating the symlinks in include/ on the fly."
This reverts commit cdcea0bf55.
2018-05-01 20:03:51 +01:00
David Teigland
c1cd18f21e Remove lvm1 and pool disk formats
There are likely more bits of code that can be removed,
e.g. lvm1/pool-specific bits of code that were identified
using FMT flags.

The vgconvert command can likely be reduced further.

The lvm1-specific config settings should probably have
some other fields set for proper deprecation.
2018-04-30 16:55:02 -05:00
Joe Thornber
1b08797419 configure: Remove --enable-testing 2018-04-30 16:31:33 +01:00
Joe Thornber
9384b2b5c5 build: Remove unused Makefiles from configure.ac
Should have been in earlier patch.
2018-04-30 14:58:45 +01:00
Joe Thornber
865a9c5873 build: rename configure.in -> configure.ac
Squashes a warning from autotools
2018-04-30 09:42:11 +01:00