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13 years agomissing space in mesg
Alasdair Kergon [Mon, 6 Jun 2011 12:08:42 +0000 (12:08 +0000)]
missing space in mesg

13 years agoAlso check in the pe_start API test that the disks have not been touched.
Petr Rockai [Sat, 4 Jun 2011 21:55:25 +0000 (21:55 +0000)]
Also check in the pe_start API test that the disks have not been touched.

13 years agoAdd an API test that shows how to find a value of pe_start for a VG without
Petr Rockai [Sat, 4 Jun 2011 21:46:34 +0000 (21:46 +0000)]
Add an API test that shows how to find a value of pe_start for a VG without
actually creating the VG on-disk.

13 years agoFix a few compile warnings.
Peter Rajnoha [Fri, 3 Jun 2011 09:05:30 +0000 (09:05 +0000)]
Fix a few compile warnings.

clvmd-command.c:84:2: warning: implicit declaration of function ‘init_test’
lvm-functions.c:141:3: warning: too many arguments for format

13 years agoUse append but except query for dlm locks:-)
Milan Broz [Thu, 2 Jun 2011 09:08:16 +0000 (09:08 +0000)]
Use append but except query for dlm locks:-)

13 years agoAlways use append to file in lvmdump (selinux policy - no file truncation).
Milan Broz [Thu, 2 Jun 2011 09:02:03 +0000 (09:02 +0000)]
Always use append to file in lvmdump (selinux policy - no file truncation).

Workaround dmsetup ls --tree (terminal ioctl for width).
(Until isatty() will be allowed by selinux policy.)

13 years agoUse /var/run/lvm for lvmetad socket.
Milan Broz [Thu, 2 Jun 2011 08:58:05 +0000 (08:58 +0000)]
Use /var/run/lvm for lvmetad socket.

13 years agoPropagate test mode to clvmd to skip activation and changes to held locks.
Alasdair Kergon [Wed, 1 Jun 2011 21:16:55 +0000 (21:16 +0000)]
Propagate test mode to clvmd to skip activation and changes to held locks.

13 years agoDefer writing PV labels to vg_write.
Alasdair Kergon [Wed, 1 Jun 2011 19:29:31 +0000 (19:29 +0000)]
Defer writing PV labels to vg_write.
Store label_sector only in struct physical_volume.

13 years agoReport sector containing label in verbose message.
Alasdair Kergon [Wed, 1 Jun 2011 19:26:38 +0000 (19:26 +0000)]
Report sector containing label in verbose message.

13 years agoPermit --available with lvcreate so non-snapshot LVs need not be activated.
Alasdair Kergon [Wed, 1 Jun 2011 19:21:03 +0000 (19:21 +0000)]
Permit --available with lvcreate so non-snapshot LVs need not be activated.

13 years agoReport sector containing label in verbose message.
Alasdair Kergon [Wed, 1 Jun 2011 15:30:36 +0000 (15:30 +0000)]
Report sector containing label in verbose message.

13 years agoClarify error message when unable to convert an LV into a snapshot of an LV.
Peter Rajnoha [Wed, 1 Jun 2011 12:24:15 +0000 (12:24 +0000)]
Clarify error message when unable to convert an LV into a snapshot of an LV.

13 years agoUse new dev_open_readonly fn to prevent opening devices for read-write when not neces...
Peter Rajnoha [Sat, 28 May 2011 09:48:14 +0000 (09:48 +0000)]
Use new dev_open_readonly fn to prevent opening devices for read-write when not necessary.

Before, we used vg_write_lock_held call to determnine the way a device is
opened. Unfortunately, this opened many devices in RW mode when it was not
really necessary. With the OPTIONS+="watch" rule used in the udev rules,
this could fire numerous events while closing such devices (and it caused
useless scans from within udev rules in return).

A common bug we hit with this was with the lvremove command which was unable
to remove the LV since it was being opened from within the udev rules. This
patch should minimize such situations (at least with respect to LVM handling
of devices).

Though there's still a possibility someone will open a device 'outside' in
parallel and fire the event based on the watch rule when closing a device
once opened for RW.

13 years agoFirst draft of a document describing how we will automatically and
Petr Rockai [Wed, 25 May 2011 21:43:12 +0000 (21:43 +0000)]
First draft of a document describing how we will automatically and
incrementally assemble (possibly multi-component, like LVM) storage devices.

13 years agotest
Alasdair Kergon [Tue, 24 May 2011 14:12:36 +0000 (14:12 +0000)]
test

13 years agotest
Alasdair Kergon [Tue, 24 May 2011 14:10:55 +0000 (14:10 +0000)]
test

13 years agotest
Alasdair Kergon [Tue, 24 May 2011 14:10:55 +0000 (14:10 +0000)]
test

13 years agotest
Alasdair Kergon [Tue, 24 May 2011 14:09:41 +0000 (14:09 +0000)]
test

13 years agotest
Alasdair Kergon [Tue, 24 May 2011 14:09:41 +0000 (14:09 +0000)]
test

13 years agotest
Alasdair Kergon [Tue, 24 May 2011 14:01:32 +0000 (14:01 +0000)]
test

13 years agotest
Alasdair Kergon [Tue, 24 May 2011 14:00:57 +0000 (14:00 +0000)]
test

13 years agotest
Alasdair Kergon [Tue, 24 May 2011 13:59:16 +0000 (13:59 +0000)]
test

13 years agotest
Alasdair Kergon [Tue, 24 May 2011 13:54:37 +0000 (13:54 +0000)]
test

13 years agotest
Alasdair Kergon [Tue, 24 May 2011 13:53:26 +0000 (13:53 +0000)]
test

13 years agotest
Alasdair Kergon [Tue, 24 May 2011 13:53:26 +0000 (13:53 +0000)]
test

13 years agoAdd and use dev_open_readonly and variations.
Alasdair Kergon [Tue, 24 May 2011 13:36:57 +0000 (13:36 +0000)]
Add and use dev_open_readonly and variations.

13 years agoMention code layout in lvmetad DESIGN.
Petr Rockai [Mon, 23 May 2011 14:46:48 +0000 (14:46 +0000)]
Mention code layout in lvmetad DESIGN.

13 years agoDo not log a superfluous stack message when the lv is properly processed
Zdenek Kabelac [Thu, 19 May 2011 13:59:22 +0000 (13:59 +0000)]
Do not log a superfluous stack message when the lv is properly processed

13 years agoMore work on the common daemon framework. Make things compile, too.
Petr Rockai [Sun, 15 May 2011 11:02:29 +0000 (11:02 +0000)]
More work on the common daemon framework. Make things compile, too.

13 years agoMore scavenging of common daemon code, this time the clvmd local socket setup
Petr Rockai [Fri, 13 May 2011 09:34:12 +0000 (09:34 +0000)]
More scavenging of common daemon code, this time the clvmd local socket setup
sequence.

13 years agoStart filling in some of the common daemon (server-side) functionality, taking
Petr Rockai [Fri, 13 May 2011 08:45:46 +0000 (08:45 +0000)]
Start filling in some of the common daemon (server-side) functionality, taking
dmeventd code as a starting point.

13 years agoFirst go at the lvmetad client-side interface.
Petr Rockai [Fri, 13 May 2011 08:17:26 +0000 (08:17 +0000)]
First go at the lvmetad client-side interface.

13 years agoFirst stab at the prototypes of the daemon-common functionality (to be
Petr Rockai [Fri, 13 May 2011 08:07:28 +0000 (08:07 +0000)]
First stab at the prototypes of the daemon-common functionality (to be
eventually shared by dmeventd, lvmetad and clvmd).

13 years agoInitial design document for LVMetaD, building on the draft from June of last
Petr Rockai [Thu, 12 May 2011 17:49:46 +0000 (17:49 +0000)]
Initial design document for LVMetaD, building on the draft from June of last
year, incorporating the outcomes of today's and yesterday's discussions.

13 years agoDo not issue an error message when unable to remove .cache on read-only fs.
Peter Rajnoha [Thu, 12 May 2011 12:42:47 +0000 (12:42 +0000)]
Do not issue an error message when unable to remove .cache on read-only fs.

13 years agoUpdate WHATS_NEW.
Petr Rockai [Sat, 7 May 2011 15:52:50 +0000 (15:52 +0000)]
Update WHATS_NEW.

13 years agoRewrite vgreduce --removemissing --force, using existing primitives:
Petr Rockai [Sat, 7 May 2011 15:52:16 +0000 (15:52 +0000)]
Rewrite vgreduce --removemissing --force, using existing primitives:
lv_remove_with_dependencies and mirror_remove_missing (the latter coming from
lvconvert). Remove substantial amount of legacy code.

13 years agoAdd a new entry point in the mirror lvconvert code, for removing missing mirror
Petr Rockai [Sat, 7 May 2011 13:56:13 +0000 (13:56 +0000)]
Add a new entry point in the mirror lvconvert code, for removing missing mirror
images and/or logs, without attempting any further actions.

13 years agoWhen glibc needs buffers for line buffering of input and output buffers, it
Petr Rockai [Sat, 7 May 2011 13:50:11 +0000 (13:50 +0000)]
When glibc needs buffers for line buffering of input and output buffers, it
allocates these buffers in such way it adds memory page for each such buffer
and size of unlock memory check will mismatch by 1 or 2 pages.

This happens when we print or read lines without '\n' so these buffers are
used. To avoid this extra allocation, use setvbuf to set these bufffers ahead.

Signed-off-by: Zdenek Kabelac <zkabelac@redhat.com>
Reviewed-by: Milan Broz <mbroz@redhat.com>
Reviewed-by: Petr Rockai <prockai@redhat.com>
13 years agoMake vg_mark_partial_lvs also clear existing PARTIAL_LV flags, so it can be
Petr Rockai [Sat, 7 May 2011 13:32:05 +0000 (13:32 +0000)]
Make vg_mark_partial_lvs also clear existing PARTIAL_LV flags, so it can be
issued repeatedly on the same VG, keeping the PARTIAL_LV flags up to date.

13 years agotest update without WHATS_NEW to check it gives warning now
Alasdair Kergon [Fri, 29 Apr 2011 19:06:17 +0000 (19:06 +0000)]
test update without WHATS_NEW to check it gives warning now

13 years agotest
Alasdair Kergon [Fri, 29 Apr 2011 19:05:11 +0000 (19:05 +0000)]
test

13 years agotest
Alasdair Kergon [Fri, 29 Apr 2011 19:01:59 +0000 (19:01 +0000)]
test

13 years agotest
Alasdair Kergon [Fri, 29 Apr 2011 19:01:59 +0000 (19:01 +0000)]
test

13 years agotest
Alasdair Kergon [Fri, 29 Apr 2011 18:57:09 +0000 (18:57 +0000)]
test

13 years agotest
Alasdair Kergon [Fri, 29 Apr 2011 18:56:35 +0000 (18:56 +0000)]
test

13 years agotest
Alasdair Kergon [Fri, 29 Apr 2011 18:48:50 +0000 (18:48 +0000)]
test

13 years agotest
Alasdair Kergon [Fri, 29 Apr 2011 18:43:31 +0000 (18:43 +0000)]
test

13 years agotest
Alasdair Kergon [Fri, 29 Apr 2011 18:41:46 +0000 (18:41 +0000)]
test

13 years agotest
Alasdair Kergon [Fri, 29 Apr 2011 18:40:55 +0000 (18:40 +0000)]
test

13 years agotest
Alasdair Kergon [Fri, 29 Apr 2011 18:40:14 +0000 (18:40 +0000)]
test

13 years agopost-release
Alasdair Kergon [Fri, 29 Apr 2011 17:05:20 +0000 (17:05 +0000)]
post-release

13 years agowake buildbot old-v2_02_85 v2_02_85
Alasdair Kergon [Fri, 29 Apr 2011 16:27:09 +0000 (16:27 +0000)]
wake buildbot

13 years agocommands/toolcontext.c:578: warning: ‘udev_dir’ may be used uninitialized in...
Alasdair Kergon [Fri, 29 Apr 2011 16:23:39 +0000 (16:23 +0000)]
commands/toolcontext.c:578: warning: â€˜udev_dir’ may be used uninitialized in this function
commands/toolcontext.c:576: warning: â€˜udev_dir_len’ may be used uninitialized in this function

Bogus - suppress them.

13 years agopre-release
Alasdair Kergon [Fri, 29 Apr 2011 16:12:21 +0000 (16:12 +0000)]
pre-release

13 years agopre-release clean-ups
Alasdair Kergon [Fri, 29 Apr 2011 00:21:13 +0000 (00:21 +0000)]
pre-release clean-ups

13 years agoAdd missing cleanup for vgimportclone script
Zdenek Kabelac [Thu, 28 Apr 2011 22:17:06 +0000 (22:17 +0000)]
Add missing cleanup for vgimportclone script

13 years agoclean up critical section patch
Alasdair Kergon [Thu, 28 Apr 2011 20:29:59 +0000 (20:29 +0000)]
clean up critical section patch

13 years agoMissing space in debug message
Zdenek Kabelac [Thu, 28 Apr 2011 19:59:17 +0000 (19:59 +0000)]
Missing space in debug message

13 years agoSet pv_min_size to 2048KB to exclude floppy drives.
Alasdair Kergon [Thu, 28 Apr 2011 17:33:34 +0000 (17:33 +0000)]
Set pv_min_size to 2048KB to exclude floppy drives.
Previously was 512.

13 years agoAdd missing pkg_config_init check with --enable-udev_sync.
Alasdair Kergon [Thu, 28 Apr 2011 16:54:32 +0000 (16:54 +0000)]
Add missing pkg_config_init check with --enable-udev_sync.

13 years agoAdjust pvmove man page wording.
Alasdair Kergon [Thu, 28 Apr 2011 16:22:47 +0000 (16:22 +0000)]
Adjust pvmove man page wording.

Add missing --alloc anywhere to example and mention that snapshots and
mirrors can't be moved.

13 years agoUncomment obtain_device_list_from_udev setting in lvm.conf.
Peter Rajnoha [Tue, 26 Apr 2011 09:09:24 +0000 (09:09 +0000)]
Uncomment obtain_device_list_from_udev setting in lvm.conf.

Just for consistency with other settings we already have in lvm.conf.

13 years agoautoreconf
Peter Rajnoha [Fri, 22 Apr 2011 12:13:05 +0000 (12:13 +0000)]
autoreconf

13 years agoUse common udev_get_dev_dir() to get current device directory managed by udev.
Peter Rajnoha [Fri, 22 Apr 2011 12:07:35 +0000 (12:07 +0000)]
Use common udev_get_dev_dir() to get current device directory managed by udev.

13 years agoObtain device list from udev by default if LVM2 is compiled with udev support.
Peter Rajnoha [Fri, 22 Apr 2011 12:05:32 +0000 (12:05 +0000)]
Obtain device list from udev by default if LVM2 is compiled with udev support.

Also, add a new 'obtain_device_list_from_udev' setting to lvm.conf with which
we can turn this feature on or off if needed.

If set, the cache of block device nodes with all associated symlinks
will be constructed out of the existing udev database content.
This avoids using and opening any inapplicable non-block devices or
subdirectories found in the device directory. This setting is applied
to udev-managed device directory only, other directories will be scanned
fully. LVM2 needs to be compiled with udev support for this setting to
take effect. N.B. Any device node or symlink not managed by udev in
udev directory will be ignored with this setting on.

13 years agoMove common libudev code to lvm-wrappers.[ch].
Peter Rajnoha [Fri, 22 Apr 2011 11:59:59 +0000 (11:59 +0000)]
Move common libudev code to lvm-wrappers.[ch].

...so we can use it throughout.

13 years agoRequire libudev >= 143 when compiling with udev support.
Peter Rajnoha [Fri, 22 Apr 2011 11:56:41 +0000 (11:56 +0000)]
Require libudev >= 143 when compiling with udev support.

Old versions of libudev < 143 were experimental and unstable. Require recent
and stable versions only (version 143 is old enough anyway).

13 years agoDisable nightly test for vgimportclone until proper fix is made.
Dave Wysochanski [Thu, 21 Apr 2011 19:06:00 +0000 (19:06 +0000)]
Disable nightly test for vgimportclone until proper fix is made.

This fails on lenny buildslave for some reason.
For now disable the vgimportclone part of the test until proper fix.

Let the first part of the test still run though, which shows pvs working
with duplicate pvs.

13 years agoAdd vgimportclone symlink for nightly test.
Dave Wysochanski [Thu, 21 Apr 2011 17:42:58 +0000 (17:42 +0000)]
Add vgimportclone symlink for nightly test.

13 years agoAdd nightly test for vgimportclone and querying of vgnames with duplicate pvs.
Dave Wysochanski [Thu, 21 Apr 2011 17:03:38 +0000 (17:03 +0000)]
Add nightly test for vgimportclone and querying of vgnames with duplicate pvs.

Related to rhbz 697959.

This test fails prior to these two commits:
commit af112eb2c9a62c5d794df920218bd3ee291d5b25
Author: Zdenek Kabelac <zkabelac@redhat.com>
Date:   Thu Apr 21 13:15:26 2011 +0000

    Skip check for NULL before dm_free

    dm_free makes this test itself.

commit 91419c3e86bf9666aab2aa631faae1ba73e8d745
Author: Zdenek Kabelac <zkabelac@redhat.com>
Date:   Thu Apr 21 13:13:40 2011 +0000

    Fix use of released vgname and vgid

13 years agoSkip check for NULL before dm_free
Zdenek Kabelac [Thu, 21 Apr 2011 13:15:26 +0000 (13:15 +0000)]
Skip check for NULL before dm_free

dm_free makes this test itself.

13 years agoFix use of released vgname and vgid
Zdenek Kabelac [Thu, 21 Apr 2011 13:13:40 +0000 (13:13 +0000)]
Fix use of released vgname and vgid

Avoid using of already released memory when duplicated MDA is found.

As get_pv_from_vg_by_id() may call lvmcache_label_scan() use the local copy
of the vgname and vgid on the stack as vginfo may dissapear and code was
then accessing garbage in memory.

i.e.  pvs  /dev/loop0
(when /dev/loop0 and /dev/loop1 has same MDA content)

Invalid read of size 1
   at 0x523C986: dm_hash_lookup (hash.c:325)
   by 0x440C8C: vginfo_from_vgname (lvmcache.c:399)
   by 0x4605C0: _create_vg_text_instance (format-text.c:1882)
   by 0x46140D: _text_create_text_instance (format-text.c:2243)
   by 0x47EB49: _vg_read (metadata.c:2887)
   by 0x47FBD8: vg_read_internal (metadata.c:3231)
   by 0x477594: get_pv_from_vg_by_id (metadata.c:344)
   by 0x45F07A: _get_pv_if_in_vg (format-text.c:1400)
   by 0x45F0B9: _populate_pv_fields (format-text.c:1414)
   by 0x45F40F: _text_pv_read (format-text.c:1493)
   by 0x480431: _pv_read (metadata.c:3500)
   by 0x4802B2: pv_read (metadata.c:3462)
 Address 0x652ab80 is 0 bytes inside a block of size 4 free'd
   at 0x4C2756E: free (vg_replace_malloc.c:366)
   by 0x442277: _free_vginfo (lvmcache.c:963)
   by 0x44235E: _drop_vginfo (lvmcache.c:992)
   by 0x442B23: _lvmcache_update_vgname (lvmcache.c:1165)
   by 0x443449: lvmcache_update_vgname_and_id (lvmcache.c:1358)
   by 0x443C07: lvmcache_add (lvmcache.c:1492)
   by 0x46588C: _text_read (text_label.c:271)
   by 0x466A65: label_read (label.c:289)
   by 0x4413FC: lvmcache_label_scan (lvmcache.c:635)
   by 0x4605AD: _create_vg_text_instance (format-text.c:1881)
   by 0x46140D: _text_create_text_instance (format-text.c:2243)
   by 0x47EB49: _vg_read (metadata.c:2887)

Add testing script

13 years agoAlways copy all tests to builddir regardless of T/S, since subsequent runs
Petr Rockai [Tue, 19 Apr 2011 15:28:17 +0000 (15:28 +0000)]
Always copy all tests to builddir regardless of T/S, since subsequent runs
(possibly with different T or S) skip that step.

13 years agoImprove the discard documentation. Also improve discard code in
Mike Snitzer [Wed, 13 Apr 2011 18:26:39 +0000 (18:26 +0000)]
Improve the discard documentation.  Also improve discard code in
pv_manip.c to properly account for case when pe_start=0 and the first
physical extent is to be released (currently skip the first extent to
avoid discarding the PV label).

13 years agoUse uint32_t rather than uint64_t.
Mike Snitzer [Tue, 12 Apr 2011 22:04:04 +0000 (22:04 +0000)]
Use uint32_t rather than uint64_t.

13 years agoAdd "devices/issue_discards" to lvm.conf.
Mike Snitzer [Tue, 12 Apr 2011 21:59:01 +0000 (21:59 +0000)]
Add "devices/issue_discards" to lvm.conf.
Issue discards on lvremove if enabled and both storage and kernel have support.

13 years agofix s/then/than/ typo in lvm.conf.5.in
Mike Snitzer [Tue, 12 Apr 2011 21:21:08 +0000 (21:21 +0000)]
fix s/then/than/ typo in lvm.conf.5.in

13 years agofix s/then/than/ typos in 'pv_min_size' section and fold floppy example
Mike Snitzer [Tue, 12 Apr 2011 20:44:41 +0000 (20:44 +0000)]
fix s/then/than/ typos in 'pv_min_size' section and fold floppy example
into documentation preamble.

13 years agoReplace dm_snprintf with strncpy
Zdenek Kabelac [Tue, 12 Apr 2011 14:13:17 +0000 (14:13 +0000)]
Replace dm_snprintf with strncpy

My previous patch fixed incorrect error check for dm_snprintf.
However in this particular case - dm_snprintf has been used differently -
just like strncpy + setting last char with '\0' - so the code had to return
error - because the buffer was to short for whole string.

Patch replaces it with real strncpy.
Also test for alloca() failure is removed - as the program behaviour
is rather undefined in this case - it never returns NULL.

13 years agoMake the mirror log checks in t-lvconvert-repair-policy a bit more strict
Petr Rockai [Tue, 12 Apr 2011 12:39:24 +0000 (12:39 +0000)]
Make the mirror log checks in t-lvconvert-repair-policy a bit more strict
(i.e. accurate).

13 years agoThis patchset refactors some reporting code and completes the remaining
Petr Rockai [Tue, 12 Apr 2011 12:24:29 +0000 (12:24 +0000)]
This patchset refactors some reporting code and completes the remaining
lvseg properties for lvm2app, 'devices' and 'seg_pe_ranges'.

Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
Reviewed-by: Petr Rockai <prockai@redhat.com>
13 years agoFix incorrect tests for dm_snprintf() failure
Zdenek Kabelac [Sat, 9 Apr 2011 19:05:23 +0000 (19:05 +0000)]
Fix incorrect tests for dm_snprintf() failure

As the memory is preallocated based on arg size in these cases,
the error would be quite hard to trigger here anyway.

13 years agoFix some unmatching sign comparation gcc warnings
Zdenek Kabelac [Fri, 8 Apr 2011 14:40:18 +0000 (14:40 +0000)]
Fix some unmatching sign comparation gcc warnings

Simple replacement for unsigned type - usually in for() loops.

13 years agoAdd missing printf attributes
Zdenek Kabelac [Fri, 8 Apr 2011 14:21:34 +0000 (14:21 +0000)]
Add missing printf attributes

These attributes were missing in previous patch, that was adding
instrumentation for printf formating string parameter.

13 years agoUse dm_snprintf
Zdenek Kabelac [Fri, 8 Apr 2011 14:18:40 +0000 (14:18 +0000)]
Use dm_snprintf

and fix differently signed comparation.

13 years agoBetter const cast logic
Zdenek Kabelac [Fri, 8 Apr 2011 14:14:57 +0000 (14:14 +0000)]
Better const cast logic

(although still gcc gives const violation warning)

13 years agoFix some forgotten -Wold-style-definition gcc warnings
Zdenek Kabelac [Fri, 8 Apr 2011 14:13:08 +0000 (14:13 +0000)]
Fix some forgotten -Wold-style-definition gcc warnings

13 years agoNewer gcc doesn't need this trick
Zdenek Kabelac [Fri, 8 Apr 2011 14:11:40 +0000 (14:11 +0000)]
Newer gcc doesn't need this trick

In fact it now generates an opposite warning about using undefined variable.

13 years agoThanks to Zdenek Kabelac (kabi) for pointing out that I was using
Jonathan Earl Brassow [Thu, 7 Apr 2011 21:49:29 +0000 (21:49 +0000)]
Thanks to Zdenek Kabelac (kabi) for pointing out that I was using
dm_pool_free incorrectly.  This check-in fixes that incorrect usage.

I've also added a WHATS_NEW line to reflect the changes I made to allow
lv_extend to operate on 0 length intrinsically layered LVs (i.e mirrors
and RAID).  I forgot that in the last commit.

13 years agoThis patch adds the ability to extend 0 length layered LVs. This
Jonathan Earl Brassow [Wed, 6 Apr 2011 21:32:20 +0000 (21:32 +0000)]
This patch adds the ability to extend 0 length layered LVs.  This
allows us to allocate all images of a mirror (or RAID array) at one
time during create.

The current mirror implementation still requires a separate allocation
for the log, however.

13 years agoAdd rudimentary versioning to the dmevend protocol, allowing us to detect the
Petr Rockai [Mon, 4 Apr 2011 16:11:09 +0000 (16:11 +0000)]
Add rudimentary versioning to the dmevend protocol, allowing us to detect the
(protocol) version of the running dmeventd on the client side.

Right now this is only used in dmeventd -R.

13 years agoCleanup fid finalization code in free_vg and allow exactly the same fid to be set...
Peter Rajnoha [Fri, 1 Apr 2011 14:54:20 +0000 (14:54 +0000)]
Cleanup fid finalization code in free_vg and allow exactly the same fid to be set again for a PV/VG.

Actually, we can call vg_set_fid(vg, NULL) instead of calling
destroy_instance for all PV structs and a VG struct - it's the same
code we already have in the vg_set_fid.

Also, allow exactly the same fid to be set again for the same PV/VG
Before, this could end up with the fid destroyed because we destroyed
existing fid first and then we used the new one and we didn't care
whether existing one == new one by chance.

13 years agoFinalize PV format instances properly in lvm_vg_write fn.
Peter Rajnoha [Fri, 1 Apr 2011 13:44:51 +0000 (13:44 +0000)]
Finalize PV format instances properly in lvm_vg_write fn.

lvm_vg_write fn reinitializes the vg->removed_pvs list. We have to finalize
all PV format instances attached to PVs found in the original list.

13 years agoFix free_vg order
Zdenek Kabelac [Wed, 30 Mar 2011 14:35:00 +0000 (14:35 +0000)]
Fix free_vg order

As now the FID management is more complex, the code inside free_vg needs
to access some parts of memory pools which were not needed before.

For this - makes the order of unlock_and_free_vg() unconditional.
Keek using unlock_and_free_vg() API function.

For properly working VG locking mechanism only the alphabeting locking
orderer needs to be preserved.

TODO: there could be few more code parts simplified when we 'officially'
support of referencies between different memory pools.

13 years agoTesting: remove -q from grep
Zdenek Kabelac [Wed, 30 Mar 2011 13:39:24 +0000 (13:39 +0000)]
Testing: remove -q from grep

to avoid any problems with pipe breaking.

13 years agoUse created hash tables for quick check of LV, PV.
Zdenek Kabelac [Wed, 30 Mar 2011 13:35:51 +0000 (13:35 +0000)]
Use created hash tables for quick check of LV, PV.

Instead of searching linear list of all LVs, PVs - use created hash tables
also for quick mapping between LV.

(Note - for small number of PVs or LVs the overhead of the hash is bigger).

TODO: Use hash tables in volume_group structure directly.

13 years agoKeep the cache content when the exported vg buffer is matching
Zdenek Kabelac [Wed, 30 Mar 2011 13:14:34 +0000 (13:14 +0000)]
Keep the cache content when the exported vg buffer is matching

Instead of regenerating config tree and parsing same data again,
check whether export_vg_to_buffer does not produce same string as
the one already cached - in this case keep it, otherwise throw cached
content away.

For the code simplicity calling _free_cached_vgmetadata() with
vgmetadata == NULL as the function handles this itself.

Note: sometimes export_vg_to_buffer() generates almost the same data
with just different time stamp, but for the patch simplicity,
data are reparsed in this case.

This patch currently helps for vgrefresh.

13 years agoFew more files filtered from memory locking
Zdenek Kabelac [Wed, 30 Mar 2011 13:06:13 +0000 (13:06 +0000)]
Few more files filtered from memory locking

Code located in these files should not be used in critical section.

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