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| author | Goldwyn Rodrigues <rgoldwyn@suse.com> | 2014-03-29 16:20:02 +0100 |
|---|---|---|
| committer | Goldwyn Rodrigues <rgoldwyn@suse.com> | 2015-02-23 14:28:42 +0100 |
| commit | c4ce867fdad200dfd8aa8cbe1eabc26c14c51635 (patch) | |
| tree | 529e265c90fbc91a3d4fe8a327f9d7ff9a284890 /drivers/md/md.c | |
| parent | Introduce md_cluster_operations to handle cluster functions (diff) | |
| download | linux-c4ce867fdad200dfd8aa8cbe1eabc26c14c51635.tar.xz linux-c4ce867fdad200dfd8aa8cbe1eabc26c14c51635.zip | |
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 <rgoldwyn@suse.com>
Diffstat (limited to 'drivers/md/md.c')
| -rw-r--r-- | drivers/md/md.c | 2 |
1 files changed, 2 insertions, 0 deletions
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); } |