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Commit Graph

17 Commits

Author SHA1 Message Date
Zdenek Kabelac
9c2095311e CLVMD bugfix support for args -S -E
Bugfix:
Add (most probably unfinished) support for -E arg with list of exclusive
locks.  (During clvmd restart all exclusive locks would have been lost and
in fact, if there would have been an exclusive lock, usage text would be
printed and clvmd exits.)

Instead of parsing list options multiple times every time some lock UUID is
checked - put them straight into the hash table - make the code easier to
understand as well.

Remove  was_ex_lock() function (replaced with dm_hash_lookup()).

Swap return value for get_initial_state() (1 means success).

Update man pages and usage info for -E option.
2011-09-24 20:48:34 +00:00
Milan Broz
0deb49e2b6 Remove obsoleted GULM clvmd cluster locking support. 2011-08-09 18:11:00 +00:00
Zdenek Kabelac
77e3610e1a Speedup consequent activation calls
Stop calling fs_unlock() from lv_de/activate().
Start using internal lvm fs cookie for dm_tree.
Stop directly calling dm_udev_wait() and
dm_tree_set/get_cookie() from activate code -
it's now called through fs_unlock() function.

Add lvm_do_fs_unlock()

Call fs_unlock() when unlocking vg where implicit unlock solves the
problem also for cluster - thus no extra command for clustering
environment is required - only lvm_do_fs_unlock() function is added
to call lvm's fs_unlock() while holding lvm_lock mutex in clvmd.

Add fs_unlock() also to set_lv() so the command waits until devices
are ready for regular open (i.e. wiping its begining).

Move fs_unlock() prototype to activation.h to keep fs.h private
in lib/activate dir and not expose other functions from this header.
2011-01-10 14:02:30 +00:00
Alasdair Kergon
7f5b44b423 Allow internal suspend and resume of origin without its snapshots. 2010-08-17 16:25:32 +00:00
Christine Caulfield
46886164dd Add -S command to clvmd, so it can restart itself and still
preserve exlusive LV locks.
2010-04-20 14:07:37 +00:00
Milan Broz
3be5edae0e Move processing of VG locks to separate function (similar to LV locks).
And print some debugging info.

No functional change in this patch.
2010-01-05 16:05:12 +00:00
Milan Broz
649cd608c1 Destroy toolcontext on exit in clvmd (fixes memory pool leaks). 2009-06-15 12:15:23 +00:00
Milan Broz
ba856910e0 Add infrastructure for queriying for remote locks.
Current code, when need to ensure that volume is not
active on remote node, it need to try to exclusive
activate volume.

Patch adds simple clvmd command which queries all nodes
for lock for given resource.

The lock type is returned in reply in text.

(But code currently uses CR and EX modes only.)
2009-05-19 10:38:58 +00:00
Milan Broz
a840a56e02 Tidy lv_hash[_lock] use inside clvmd.
- Rename unlock_all to destroy_lvhash,
this function is called in cluster shutdown
unlocks everything and clean up allocated info space.

 - Tidy lv_hash_lock use
.
Except adding free(lvi) in lv_has destructror
there is no functional change.
2009-04-21 13:11:28 +00:00
Alasdair Kergon
b1d82a92e7 Add missing mutex around clvmd lvmcache_drop_metadata library call. 2008-05-09 15:13:20 +00:00
Patrick Caulfield
8c01179075 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
8f21c9a920 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
Jim Meyering
7454664997 Add "const" attributes where possible: first cut. 2007-08-07 09:06:05 +00:00
Patrick Caulfield
8233cfd371 Vastly improve the errors returned to the user from clvmd.
It now captures the error messages that are generated and returns them
in the reply packet rather than just telling the user to check syslog.
2006-10-05 13:55:50 +00:00
Patrick Caulfield
f1604c3e69 Add -R switch to clvmd.
This option will instruct all the clvmd daemons in the cluster to reload their device cache
2006-10-04 08:22:16 +00:00
Patrick Caulfield
6a0dcd7f0e make clvmd FDs close-on-exec, to avoid warnings when running lvm via popen.
clvmd-gulm unlocks VG & orphan locks at startup in case they are stale.
clvmd-gulm now unlocks VG & orphan locks if client dies.
2005-03-07 17:03:44 +00:00
Alasdair Kergon
858a2b1b88 Add cluster support. 2004-06-24 08:02:38 +00:00