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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>
This commit is contained in:
Guoqing Jiang 2015-07-10 17:01:19 +08:00 committed by NeilBrown
parent 9e3072e373
commit b2b9bfff0a
1 changed files with 0 additions and 9 deletions
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9
drivers/md/md-cluster.c
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@ -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 @@ static int join(struct mddev *mddev, int nodes)
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;