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164 Commits

Author SHA1 Message Date
Dave Wysochanski
5a820745ce Remove NON_BLOCKING lock flag from tools and set a policy to auto-set. 
As a simplification to the tools and further liblvm, this patch pushes
the setting of NON_BLOCKING lock flag inside the lock_vol() call.
The policy we set is if any existing VGs are currently locked, we
set the NON_BLOCKING flag.

Should be no functional change.
 2009-05-13 13:02:52 +00:00
Milan Broz
dfbc015c69 Fix remote metadata backup for clvmd 
Run backup of metadata on remote nodes in the
same place like local node - when calling backup().

Introduce backup_locally() which calls only
local backup if needed.

Remote backup is now trigerred by LCK_VG_BACKUP flag
combination (special VG lock).

This lock type will call check_current_backup()
(including backup_locally() call) and updates
metadata on all nodes.

(Patch fixes non-functional remote backup,
current call during VG lock never triggers.)
 2009-04-22 09:39:45 +00:00
Milan Broz
8e1d5615b4 Introduce memory pool per volume group. 
Since now, all code reading volume group is responsible for releasing
the memory allocated by calling vg_release(vg).
(For simplicity of use, vg_releae can be called for vg == NULL,
the same logic like free(NULL)).

Also providing simple macro for unlocking & releasing in one step,
tools usualy uses this approach.

The global memory pool (cmd->mem) should be used only for global
physical volume operations.

This patch have to be applied with all subsequent patches to complete
memory pool per vg logic.

Using separate memory pool has quite bit memory saving impact when
using large VGs, this is mainly needed when we have to use
preallocated and locked memory (and should not overflow from that
memory space).
 2009-04-10 09:59:18 +00:00
Alasdair Kergon
47c0f6ae76 Fix interrupt unblocking after vgcreate, for example: drop_cached_metadata() 
previously left _vg_lock_count incremented.
Other locks are always held during drop_cached_metadata() so there's no
need to increment+decrement it.
 2009-02-22 16:13:57 +00:00
Dave Wysochanski
76cc7b2754 Move locking_type reading inside init_locking(). 
No functional change.
 2009-02-03 16:23:19 +00:00
Dave Wysochanski
0296197999 Create global is_static() to eliminate from the library init function. 
Very simple / crude method of removing 'is_static' from initialization.
Why should we require an application tell us whether it is linked
statically or dynamically to libLVM?  If the application is linked
statically, but libraries exist and dlopen() calls succeed, why
do we care if it's statically linked?
 2008-12-18 05:27:17 +00:00
Dave Wysochanski
0fb1762159 Rename 'cmd' to 'clvmd_cmd' to remove ambiguity. 
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
Acked-by: James Cameron <james.cameron@hp.com>
Acked-by: Alasdair G Kergon <agk@redhat.com>
 2008-12-16 12:30:39 +00:00
Zdenek Kabelac
23cf7bc97c * minor compilator warning fix for improper function declaration. 2008-11-12 09:30:52 +00:00
Alasdair Kergon
56d8844068 more fixes 2008-11-04 15:07:45 +00:00
Alasdair Kergon
2c44337bd5 Right, a simple build (without options) is working again. 2008-11-03 22:14:30 +00:00
Alasdair Kergon
14c9a9aec7 Accept locking fallback_to_* options in the global section as documented. 2008-10-24 01:16:16 +00:00
Alasdair Kergon
8c5bcdabab Improve the way VGs with PVs missing are handled so manual intervention 
is required in fewer circumstances.  (mornfall)
 2008-09-19 06:42:00 +00:00
Milan Broz
74f36b9308 Do not scan for lvm1 entries in /proc if not running 2.4 kernel. 
(LVM1 is only present in 2.4 kernel.)
 2008-09-10 10:14:59 +00:00
Alasdair Kergon
3dfd8f12dc more cleanup 2008-05-09 19:26:58 +00:00
Alasdair Kergon
98fd1ce332 More P_ and V_ lock cleanup. 2008-05-09 18:45:15 +00:00
Alasdair Kergon
1a20d53171 Avoid unnecessary unlock attempts with LCK_CACHE pseudo-locks. 2008-05-08 18:35:58 +00:00
Milan Broz
581b17def2 Drop cached VG metadata before and after committing changes to it. 2008-04-15 14:46:19 +00:00
Alasdair Kergon
adb578238d rename P_global to P_#global 2008-04-15 11:36:46 +00:00
Alasdair Kergon
c4afaa05a4 Don't attempt remote metadata backups of non-clustered VGs. (2.02.29) 2008-04-14 19:49:12 +00:00
Dave Wysochanski
985ca02b6a Add vg_is_clustered() helper function. 
Should be no functional change.
 2008-04-10 17:09:32 +00:00
Alasdair Kergon
eb273c7c65 Use clustered mirror log with pvmove in clustered VGs, if available. 2008-04-09 12:56:34 +00:00
Milan Broz
d334793f2a Update lvmcache VG lock state for all locking types now. 2008-04-07 19:17:29 +00:00
Alasdair Kergon
906935e580 Add some basic internal VG lock validation. 2008-04-03 18:56:40 +00:00
Alasdair Kergon
67cdbd7e4d Some whitespace tidy-ups. 2008-01-30 14:00:02 +00:00
Alasdair Kergon
c51b9fff19 Use stack return macros throughout. 2008-01-30 13:19:47 +00:00
Patrick Caulfield
8a0a9a93d9 Tidy the clvmd backup code. 
Move the backups inside the protection of the VG lock,
Don't backup if we have a suspended LV
Correct the vg_read() call
 2007-12-05 13:17:18 +00:00
Patrick Caulfield
3303289137 When we unlock a VG tell the clvmds to see if a backup of the metadata needs 
to be done.
 2007-12-04 15:39:26 +00:00
Alasdair Kergon
3e50ea9eef Decode cluster locking state in log message. (untested) 
Change file locking state messages from debug to very verbose.
 2007-11-16 21:16:20 +00:00
Alasdair Kergon
57d921e953 more vg_read lock fixes 2007-11-15 21:30:52 +00:00
Alasdair Kergon
c6f8ef3814 define LCK_NONE for cases when vg_lock_and_read already holds lock 
(temporary - library will use internal ref counting instead)
 2007-11-15 02:55:22 +00:00
Bryn M. Reeves
8b98c12815 Add is_orphan_vg() and change all hardcoded checks to use it. 2007-11-02 13:06:42 +00:00
Jim Meyering
7f8f8bfa09 Correct typo in comments: s/is part of the LVM2/is part of LVM2/. 
Signed-off-by: Jim Meyering <jim@meyering.net>


Author: Jim Meyering <jim@meyering.net>
 2007-09-21 10:16:45 +00:00
Patrick Caulfield
5982271096 Locking P_global causes a cache refresh. 2007-08-23 15:43:20 +00:00
Alasdair Kergon
e935d21752 Introduce VG_GLOBAL lock type for vgscan/pvscan to trigger clvmd -R. 2007-08-23 15:02:26 +00:00
Alasdair Kergon
21bc366486 Clean up numerous compiler warnings that crept in recently. 
Remove several unused parameters from _allocate().
 2007-08-22 14:38:18 +00:00
Alasdair Kergon
be6845999b Fix inconsistent licence notices: executables are GPLv2; libraries LGPLv2.1. 2007-08-20 20:55:30 +00:00
Jim Meyering
941e4f5567 Remove create_dir function; use now-equivalent dm_create_dir instead. 
* lib/misc/lvm-file.c (_create_dir_recursive, create_dir): Remove functions.
* lib/misc/lvm-file.h (create_dir): Remove declaration.
* lib/commands/toolcontext.c (create_toolcontext): s/create_dir/dm_create_dir/
* lib/format_text/archiver.c (archive, backup): Likewise.
* lib/format_text/format-text.c (_add_dir): Likewise.
* lib/locking/file_locking.c (init_file_locking): Likewise.
Patch by Jun'ichi Nomura.
 2007-07-28 12:26:21 +00:00
Jim Meyering
c93e6b5f79 Introduce is_same_inode macro, now including a comparison of st_dev. 
* lib/misc/lvm-file.h (is_same_inode): Define.
* lib/filters/filter-persistent.c (persistent_filter_dump): Use is_same_inode
in place of a direct st_ino-only comparison.
* lib/locking/file_locking.c (_release_lock, _lock_file): Likewise.
 2007-07-20 15:22:46 +00:00
Jim Meyering
57015b12e2 Don't leak a file descriptor in _lock_file when flock fails. 
* lib/locking/file_locking.c (_lock_file): Close fd upon flock failure.
 2007-07-20 12:12:52 +00:00
Petr Rockai
e7ddf4168d Make warnings go to stderr. Change log_warn to that effect, log_print 
continues to send messages to stdout.
 2007-06-28 17:33:44 +00:00
Alasdair Kergon
817afaad5e pre-release 2007-06-15 20:46:04 +00:00
Petr Rockai
7379c67839 Allow keyboard interrupts in yes_no_prompt(). Add code to toollib.c 
loops and to pvcreate.c, lvchange.c and lvresize.c to handle
interrupted prompts.
 2007-06-15 10:11:14 +00:00
Patrick Caulfield
5d47ed1161 Flag nolocking as a clustered locking module as we need to be able 
to look at clustered LVs at clvmd startup
 2007-03-13 14:59:21 +00:00
Alasdair Kergon
2e1b92e3ea Add some missing close() and fclose() return code checks. 
Fix exit statuses of reporting tools (2.02.19).
 2007-01-25 14:37:48 +00:00
Alasdair Kergon
8a37910d51 register->monitor etc. 2007-01-19 22:21:45 +00:00
Patrick Caulfield
e3e6eba1aa Fix gulm operation of clvmd. including a hang when attempting to 
exclusively lock an LV that is already locked no another node.
 2006-12-11 14:00:26 +00:00
Alasdair Kergon
a951e97ae9 clvmd ia64 alignment fixes etc. (pjc) 2006-12-01 23:10:26 +00:00
Alasdair Kergon
4dc0ec2253 Adjust some alignments for ia64 and sparc. 
(Some of the changes are probably unnecessary.)
 2006-11-30 23:11:42 +00:00
Alasdair Kergon
04dabc1562 Fall back to internal locking if external locking lib is missing or fails. 2006-10-14 16:37:54 +00:00
Alasdair Kergon
dc4d7417f7 When using local file locking, skip clustered VGs. 
Add fallback_to_clustered_locking and fallback_to_local_locking parameters.
 2006-09-02 01:18:17 +00:00
Alasdair Kergon
a45da5f676 lvm.static uses built-in cluster locking instead of external locking. 
Don't attempt to load shared libraries if built statically.
 2006-08-31 22:21:00 +00:00
Alasdair Kergon
0550c1b618 Move lvm_snprintf into libdevmapper. 2006-08-21 12:54:53 +00:00
Patrick Caulfield
8228b50882 Fix "Unaligned access" when using clvm 
bz#194626
 2006-06-12 09:46:35 +00:00
Alasdair Kergon
2293567c8c Fix lvcreate corelog validation. 
Add --config for overriding most config file settings from cmdline.
  Quote arguments when printing command line.
  Remove linefeed from 'initialising logging' message.
  Add 'Completed' debug message.
  Don't attempt library exit after reloading config files.
  Always compile with libdevmapper, even if device-mapper is disabled.
 2006-05-16 16:48:31 +00:00
Alasdair Kergon
3e3d5d8593 Add --monitor to vgcreate and lvcreate to control dmeventd registration. 
Propagate --monitor around cluster.
Filter LCK_NONBLOCK in clvmd lock_vg.
 2006-05-12 19:16:48 +00:00
Alasdair Kergon
6560de21e2 fix compile 2006-05-12 13:33:22 +00:00
Alasdair Kergon
526a3c2186 Propagate nosync flag around cluster. 2006-05-11 19:05:21 +00:00
Alasdair Kergon
898e6f8e41 Add mirror_library description to example.conf. 
More compile-time cleanup.
 2006-05-11 17:58:58 +00:00
Alasdair Kergon
2c7fbadeef more coverity fixes 2006-05-10 17:49:25 +00:00
Alasdair Kergon
72b2cb613a Make SIZE_SHORT the default for display_size(). 
Fix some memory leaks in error paths found by coverity.
Use C99 struct initialisers.
Move DEFS into configure.h.
Clean-ups to remove miscellaneous compiler warnings.
 2006-05-09 21:23:51 +00:00
Alasdair Kergon
8a2fc58645 Check for libsepol. 
Add some cflow & scope support.
Separate out DEFS from CFLAGS.
Remove inlines and use unique function names.
 2006-04-19 15:33:07 +00:00
Alasdair Kergon
1a01b0c103 Suppress locking library load failure message if --ignorelockingfailure. 2006-04-03 18:43:55 +00:00
Alasdair Kergon
9f5d8283a9 Propagate partial mode around cluster. 2006-03-09 22:34:13 +00:00
Alasdair Kergon
2262b32057 Use hash, bitset, malloc, pool from libdevmapper. 2005-10-16 23:03:59 +00:00
Patrick Caulfield
fe6c78629d clvmd no longer takes out locks for non-clusteed LVs, 
and non-clustered LVs are only activated on the local node.
 2005-08-16 08:25:09 +00:00
Alasdair Kergon
4c60a35226 Add clustered VG flag to LV lock requests. 2005-08-15 13:24:46 +00:00
Alasdair Kergon
0fb173aa3a Change LV locking macros to take lv instead of lvid. 2005-08-15 12:00:04 +00:00
Alasdair Kergon
07d318310b Prepare tools to support clustered mirrors. 2005-08-14 23:18:28 +00:00
Alasdair Kergon
60f13f01d2 Basic support for mirrors. 2005-06-01 16:51:55 +00:00
Alasdair Kergon
343a8c920d Add clustered attribute so vgchange can identify clustered VGs w/o locking. 2005-03-21 22:55:12 +00:00
Alasdair Kergon
779b7713cf Tighten signal handlers. 2005-03-21 14:16:16 +00:00
Patrick Caulfield
6f4d25ec7f Fix clvmd startup bug introduced in cman/gulm amalgamation. bz#145729 
Improve reporting of node-specific locking errors so you'll get
somthing a little more helpfiul than "host is down" - it will now tell
you /which/ host it thinks is down.
 2005-01-21 11:35:24 +00:00
Patrick Caulfield
b9fb9b206e Fix off-by-one error in cluster_locking that could case read hangs. 2005-01-07 14:22:49 +00:00
Alasdair Kergon
cab8ea7c62 Cluster-extension-only installation. 2004-08-18 18:57:40 +00:00
Alasdair Kergon
11a4112cb9 Missing .exported_symbols 2004-06-24 08:16:09 +00:00
Alasdair Kergon
d3c8211fef Add cluster support. 2004-06-24 08:02:38 +00:00
Alasdair Kergon
b86ef8e2cb Add local activation support. 2004-06-16 17:13:41 +00:00
Alasdair Kergon
b61702ce8c Add reset_fn to external_locking. 2004-05-18 21:57:24 +00:00
Alasdair Kergon
23289e6d14 Revise internal locking semantics. 2004-05-05 12:03:07 +00:00
Alasdair Kergon
4922197a33 Begin to separate out segment types. 2004-05-04 21:25:57 +00:00
Alasdair Kergon
6606c3ae81 Update copyright notices. 2004-03-30 19:35:44 +00:00
Alasdair Kergon
8e1e14ee8a missing definition 2004-03-26 21:46:01 +00:00
Alasdair Kergon
93af0a4a51 indent 2004-03-26 21:07:30 +00:00
Alasdair Kergon
2da02bbd16 move lock_lvs; add lock memlock code 2004-03-26 20:49:35 +00:00
Alasdair Kergon
05896e787c Add locking flags + memlock option. 2004-03-26 20:17:11 +00:00
Alasdair Kergon
814643d8a2 rename config file vars & always use / as separator 2004-03-08 18:28:45 +00:00
Alasdair Kergon
e19f549a11 Fix support for PVs on read only devices. [Still must set LVs read only] 2003-11-21 19:54:40 +00:00
Alasdair Kergon
3eb135f550 Fit locking bits into 1 byte. 2003-11-06 17:08:18 +00:00
Alasdair Kergon
914c97239f Another sync point - numerous fixes & clean ups. 2003-07-04 22:34:56 +00:00
Alasdair Kergon
8b99c8b6ec reset_locking() 2003-05-06 12:03:13 +00:00
Alasdair Kergon
b896caa19b Improve build robustness. 2003-04-15 13:24:42 +00:00
Alasdair Kergon
26e7f2e0c4 Tidy various pre-processing incl. making libdl optional. 2003-03-24 18:08:53 +00:00
Alasdair Kergon
4e268ceacb Also lock memory during LV updates. 2003-01-03 21:10:28 +00:00
Alasdair Kergon
8ef2b021ed Default stripesize 64k & config file setting for it; 
Clear many compiler warnings (i386) & associated bugs - hopefully without
introducing too many new bugs:-)  (Same exercise required for other archs.)
Default compilation has optimisation - or else use ./configure --enable-debug
 2002-12-19 23:25:55 +00:00
Alasdair Kergon
d1d9800ef1 Refactoring. 2002-11-18 14:01:16 +00:00
Alasdair Kergon
f2187638dc Don't let LVM2 access a VG if the original LVM driver appears to be using it. 2002-11-01 19:57:25 +00:00
Patrick Caulfield
7a0ed4a40c Rename lock_resource to file_lock_resource to avoid name clashes 2002-07-25 09:04:30 +00:00
Alasdair Kergon
48ad31920d Add --ignorelockingfailure 2002-07-10 20:43:32 +00:00
Alasdair Kergon
25b733809a Merge with text format branch. 
Lots of changes/very little testing so far => there'll be bugs!

Use 'vgcreate -M text' to create a volume group with its metadata stored
in text files.  Text format metadata changes should be reasonably atomic,
with a (basic) automatic recovery mechanism if the system crashes while a
change is in progress.

Add a metadata section to lvm.conf to specify multiple directories if
you want (recommended) to keep multiple copies of the metadata (eg on
different filesystems).

e.g. metadata {
        dirs = ["/etc/lvm/metadata1","/usr/local/lvm/metadata2"]
}

Plenty of refinements still in the pipeline.
 2002-04-24 18:20:51 +00:00
Alasdair Kergon
7e3d403b88 Implement a no_locking module that *does* attempt activation. 2002-04-11 14:10:32 +00:00