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| author |   Guoqing Jiang <gqjiang@suse.com> | 2016-09-04 22:17:28 -0400 |
|---|---|---|
| committer |   Shaohua Li <shli@fb.com> | 2016-09-08 11:11:27 -0700 |
| commit | 47a7b0d8888c04c9746812820b6e60553cc77bbc (patch) | |
| tree | 2767ab8a502311ac7f5a02c936d05c3bba5b9ef2 /drivers/md | |
| parent | raid5: guarantee enough stripes to avoid reshape hang (diff) | |
| download | linux-dev-47a7b0d8888c04c9746812820b6e60553cc77bbc.tar.xz linux-dev-47a7b0d8888c04c9746812820b6e60553cc77bbc.zip | |
md-cluster: make md-cluster also can work when compiled into kernel
The md-cluster is compiled as module by default,
if it is compiled by built-in way, then we can't
make md-cluster works.
[64782.630008] md/raid1:md127: active with 2 out of 2 mirrors
[64782.630528] md-cluster module not found.
[64782.630530] md127: Could not setup cluster service (-2)
Fixes: edb39c9 ("Introduce md_cluster_operations to handle cluster functions")
Cc: stable@vger.kernel.org (v4.1+)
Reported-by: Marc Smith <marc.smith@mcc.edu>
Reviewed-by: NeilBrown <neilb@suse.com>
Signed-off-by: Guoqing Jiang <gqjiang@suse.com>
Signed-off-by: Shaohua Li <shli@fb.com>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/md.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index 67642bacd597..915e84d631a2 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -7610,16 +7610,12 @@ EXPORT_SYMBOL(unregister_md_cluster_operations); int md_setup_cluster(struct mddev *mddev, int nodes) { - int err; - - err = request_module("md-cluster"); - if (err) { - pr_err("md-cluster module not found.\n"); - return -ENOENT; - } - + if (!md_cluster_ops) + request_module("md-cluster"); spin_lock(&pers_lock); + /* ensure module won't be unloaded */ if (!md_cluster_ops || !try_module_get(md_cluster_mod)) { + pr_err("can't find md-cluster module or get it's reference.\n"); spin_unlock(&pers_lock); return -ENOENT; } |