[patch 16/22] ocfs2/dlm: clear refmap bit of recovery lock while doing local recovery cleanup

[patch 16/22] ocfs2/dlm: clear refmap bit of recovery lock while doing local recovery cleanup

[akpm]

From: xuejiufei <xuejiufei@huawei.com>
Subject: ocfs2/dlm: clear refmap bit of recovery lock while doing local recovery cleanup

When recovery master down, dlm_do_local_recovery_cleanup() only remove the
$RECOVERY lock owned by dead node, but do not clear the refmap bit.  Which
will make umount thread falling in dead loop migrating $RECOVERY to the
dead node.

Signed-off-by: xuejiufei <xuejiufei@huawei.com>
Reviewed-by: Joseph Qi <joseph.qi@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.de>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 fs/ocfs2/dlm/dlmrecovery.c |    2 ++
 1 file changed, 2 insertions(+)

diff -puN fs/ocfs2/dlm/dlmrecovery.c~ocfs2-dlm-clear-refmap-bit-of-recovery-lock-while-doing-local-recovery-cleanup fs/ocfs2/dlm/dlmrecovery.c
--- a/fs/ocfs2/dlm/dlmrecovery.c~ocfs2-dlm-clear-refmap-bit-of-recovery-lock-while-doing-local-recovery-cleanup
+++ a/fs/ocfs2/dlm/dlmrecovery.c
@@ -2367,6 +2367,8 @@ static void dlm_do_local_recovery_cleanu
 						break;
 					}
 				}
+				dlm_lockres_clear_refmap_bit(dlm, res,
+						dead_node);
 				spin_unlock(&res->spinlock);
 				continue;
 			}
_