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lvmcache: skip drop when vg_write lock is not held

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Commit 80f4b4b803
introduced undesirable side-effects for lvm2app user
which happens to be our own python binding.

It appear obtaing pvs list keeps global lock.

So restricting this to VG_GLOBAL READ locks and skip
the drop skip if WRITE lock is held.
This commit is contained in:
Zdenek Kabelac 2015-04-02 12:42:18 +02:00
parent f199aeb9ea
commit e28e22b9e1
2 changed files with 2 additions and 1 deletions
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1
WHATS_NEW
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@ -1,5 +1,6 @@
Version 2.02.119 - Version 2.02.119 -
================================== ==================================
Don't skip invalidation of cached orphans if vg write lck is held (2.02.118).
Log relevant PV tags when using cling allocation. Log relevant PV tags when using cling allocation.
Add str_list_add_list() to combine two lists. Add str_list_add_list() to combine two lists.
Fix LV processing with selection to always do the selection on initial state. Fix LV processing with selection to always do the selection on initial state.

2
lib/cache/lvmcache.c vendored
View File

@ -287,7 +287,7 @@ void lvmcache_commit_metadata(const char *vgname)
void lvmcache_drop_metadata(const char *vgname, int drop_precommitted) void lvmcache_drop_metadata(const char *vgname, int drop_precommitted)
{ {
if (lvmcache_vgname_is_locked(VG_GLOBAL)) if (lvmcache_vgname_is_locked(VG_GLOBAL) && !vg_write_lock_held())
return; return;
/* For VG_ORPHANS, we need to invalidate all labels on orphan PVs. */ /* For VG_ORPHANS, we need to invalidate all labels on orphan PVs. */