From c4ce867fdad200dfd8aa8cbe1eabc26c14c51635 Mon Sep 17 00:00:00 2001 From: Goldwyn Rodrigues Date: Sat, 29 Mar 2014 10:20:02 -0500 Subject: Introduce md_cluster_info md_cluster_info stores the cluster information in the MD device. The join() is called when mddev detects it is a clustered device. The main responsibilities are: 1. Setup a DLM lockspace 2. Setup all initial locks such as super block locks and bitmap lock (will come later) The leave() clears up the lockspace and all the locks held. Signed-off-by: Goldwyn Rodrigues --- drivers/md/md.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/md/md.c') diff --git a/drivers/md/md.c b/drivers/md/md.c index 57ecb51ec5fd..3387f940140b 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -7279,6 +7279,8 @@ int md_setup_cluster(struct mddev *mddev, int nodes) void md_cluster_stop(struct mddev *mddev) { + if (!md_cluster_ops) + return; md_cluster_ops->leave(mddev); module_put(md_cluster_mod); } -- cgit v1.2.3