tree 5773690f74d0ff68216247c330815df5d0820b35
parent 7bcda7149dd6911bee15a51b22477f592f8b9620
author Guoqing Jiang <gqjiang@suse.com> 1470980563 +0800
committer Shaohua Li <shli@fb.com> 1474474184 -0700

md-cluster: make resync lock also could be interruptted

When one node is perform resync or recovery, other nodes
can't get resync lock and could block for a while before
it holds the lock, so we can't stop array immediately for
this scenario.

To make array could be stop quickly, we check MD_CLOSING
in dlm_lock_sync_interruptible to make us can interrupt
the lock request.

Reviewed-by: NeilBrown <neilb@suse.com>
Signed-off-by: Guoqing Jiang <gqjiang@suse.com>
Signed-off-by: Shaohua Li <shli@fb.com>