From 64da7b6527f3e80f65a0ce1b47fb0cd1d66a1853 Mon Sep 17 00:00:00 2001
From: xuejiufei <xuejiufei@huawei.com>
Date: Fri, 5 Feb 2016 15:36:47 -0800
Subject: [PATCH] ocfs2/dlm: clear refmap bit of recovery lock while doing
 local recovery cleanup

commit c95a51807b730e4681e2ecbdfd669ca52601959e upstream.

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>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
[wt: dlm_lockres_clear_refmap_bit() takes 2 args in 2.6.32]
Signed-off-by: Willy Tarreau <w@1wt.eu>
---
 fs/ocfs2/dlm/dlmrecovery.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c
index 3492550b70c8d..d69325416c4f0 100644
--- a/fs/ocfs2/dlm/dlmrecovery.c
+++ b/fs/ocfs2/dlm/dlmrecovery.c
@@ -2260,6 +2260,7 @@ static void dlm_do_local_recovery_cleanup(struct dlm_ctxt *dlm, u8 dead_node)
 						break;
 					}
 				}
+				dlm_lockres_clear_refmap_bit(dead_node, res);
 				spin_unlock(&res->spinlock);
 				continue;
 			}			
-- 
2.47.2