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Avoid repeatedly wiping cache while VG_GLOBAL is held in vgscan & pvscan.

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This commit is contained in:
Alasdair Kergon 2008-09-16 18:05:11 +00:00
parent 91e9ae2629
commit a0e00ccf3f
2 changed files with 5 additions and 3 deletions
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1
WHATS_NEW
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@ -1,5 +1,6 @@
Version 2.02.40 -
================================
Avoid repeatedly wiping cache while VG_GLOBAL is held in vgscan & pvscan.
Fix pvresize to not allow resize if PV has two metadata areas.
Fix setting of volume limit count if converting to lvm1 format.
Fix vgconvert logical volume id metadata validation.

7
lib/cache/lvmcache.c vendored
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@ -97,9 +97,10 @@ static void _update_cache_info_lock_state(struct lvmcache_info *info,
int was_locked = (info->status & CACHE_LOCKED) ? 1 : 0;
/*
* Cache becomes invalid whenever lock state changes
* Cache becomes invalid whenever lock state changes unless
* exclusive VG_GLOBAL is held (i.e. while scanning).
*/
if (was_locked != locked) {
if (!vgname_is_locked(VG_GLOBAL) && (was_locked != locked)) {
info->status |= CACHE_INVALID;
*cached_vgmetadata_valid = 0;
}
@ -166,7 +167,7 @@ void lvmcache_drop_metadata(const char *vgname)
/* Indicate that PVs could now be missing from the cache */
init_full_scan_done(0);
} else
} else if (!vgname_is_locked(VG_GLOBAL))
_drop_metadata(vgname);
}