rbd: client_mutex is never nested

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 612e4ae..99de716 100644 (file)
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -934,7 +934,7 @@ static struct rbd_client *rbd_get_client(struct ceph_options *ceph_opts)
        struct rbd_client *rbdc;
        int ret;
 
-       mutex_lock_nested(&client_mutex, SINGLE_DEPTH_NESTING);
+       mutex_lock(&client_mutex);
        rbdc = rbd_client_find(ceph_opts);
        if (rbdc) {
                ceph_destroy_options(ceph_opts);