[lvm-devel] LVM2/lib/locking cluster_locking.c
agk at sourceware.org
agk at sourceware.org
Wed Feb 2 23:57:48 UTC 2011
CVSROOT: /cvs/lvm2
Module name: LVM2
Changes by: agk at sourceware.org 2011-02-02 23:57:48
Modified files:
lib/locking : cluster_locking.c
Log message:
a few more comments
Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/lib/locking/cluster_locking.c.diff?cvsroot=lvm2&r1=1.52&r2=1.53
--- LVM2/lib/locking/cluster_locking.c 2011/02/02 23:39:39 1.52
+++ LVM2/lib/locking/cluster_locking.c 2011/02/02 23:57:48 1.53
@@ -342,10 +342,14 @@
* VG locks are just that: locks, and have no side effects
* so we only need to do them on the local node because all
* locks are cluster-wide.
+ *
* Also, if the lock is exclusive it makes no sense to try to
* acquire it on all nodes, so just do that on the local node too.
- * One exception, is that P_ locks (except VG_SYNC_NAMES) /do/ get
- * distributed across the cluster because they might have side-effects.
+ *
+ * P_ locks /do/ get distributed across the cluster because they might
+ * have side-effects.
+ *
+ * SYNC_NAMES and VG_BACKUP use the VG name directly without prefix.
*/
if (clvmd_cmd == CLVMD_CMD_SYNC_NAMES) {
if (flags & LCK_LOCAL)
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