md-cluster: remove the unused sb_lock

The sb_lock is not used anywhere, so let's remove it.

Reviewed-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Signed-off-by: Guoqing Jiang <gqjiang@suse.com>
Signed-off-by: NeilBrown <neilb@suse.com>

diff --git a/drivers/md/md-cluster.c b/drivers/md/md-cluster.c
index 6f1ea3c787f29657c2e4344ed507f86704ae15a4..057a9733f74894696ae9c244cbb744c0a4c91648 100644 (file)
--- a/drivers/md/md-cluster.c
+++ b/drivers/md/md-cluster.c
@@ -52,7 +52,6 @@ struct md_cluster_info {
        dlm_lockspace_t *lockspace;
        int slot_number;
        struct completion completion;
-       struct dlm_lock_resource *sb_lock;
        struct mutex sb_mutex;
        struct dlm_lock_resource *bitmap_lockres;
        struct list_head suspend_list;
@@ -692,12 +691,6 @@ static int join(struct mddev *mddev, int nodes)
                ret = -ERANGE;
                goto err;
        }
-       cinfo->sb_lock = lockres_init(mddev, "cmd-super",
-                                       NULL, 0);
-       if (!cinfo->sb_lock) {
-               ret = -ENOMEM;
-               goto err;
-       }
        /* Initiate the communication resources */
        ret = -ENOMEM;
        cinfo->recv_thread = md_register_thread(recv_daemon, mddev, "cluster_recv");
@@ -749,7 +742,6 @@ err:
        lockres_free(cinfo->ack_lockres);
        lockres_free(cinfo->no_new_dev_lockres);
        lockres_free(cinfo->bitmap_lockres);
-       lockres_free(cinfo->sb_lock);
        if (cinfo->lockspace)
                dlm_release_lockspace(cinfo->lockspace, 2);
        mddev->cluster_info = NULL;
@@ -770,7 +762,6 @@ static int leave(struct mddev *mddev)
        lockres_free(cinfo->token_lockres);
        lockres_free(cinfo->ack_lockres);
        lockres_free(cinfo->no_new_dev_lockres);
-       lockres_free(cinfo->sb_lock);
        lockres_free(cinfo->bitmap_lockres);
        dlm_release_lockspace(cinfo->lockspace, 2);
        return 0;