[GFS2] Remove all_list from lock_dlm

I discovered that we had a list onto which every lock_dlm
lock was being put. Its only function was to discover whether
we'd got any locks left after umount. Since there was already
a counter for that purpose as well, I removed the list. The
saving is sizeof(struct list_head) per glock - well worth
having.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

1 files changed, 1 insertions, 5 deletions

diff --git a/fs/gfs2/locking/dlm/mount.c b/fs/gfs2/locking/dlm/mount.c
index fa31c54c2e67..947e70673eec 100644
--- a/fs/gfs2/locking/dlm/mount.c
+++ b/fs/gfs2/locking/dlm/mount.c
@@ -28,7 +28,6 @@ static struct gdlm_ls *init_gdlm(lm_callback_t cb, struct gfs2_sbd *sdp,
         spin_lock_init(&ls->async_lock);
         INIT_LIST_HEAD(&ls->delayed);
         INIT_LIST_HEAD(&ls->submit);
-        INIT_LIST_HEAD(&ls->all_locks);
         init_waitqueue_head(&ls->thread_wait);
         init_waitqueue_head(&ls->wait_control);
         ls->jid = -1;
@@ -173,7 +172,6 @@ out:
 static void gdlm_unmount(void *lockspace)
 {
         struct gdlm_ls *ls = lockspace;
-        int rv;
 
         log_debug("unmount flags %lx", ls->flags);
 
@@ -187,9 +185,7 @@ static void gdlm_unmount(void *lockspace)
         gdlm_kobject_release(ls);
         dlm_release_lockspace(ls->dlm_lockspace, 2);
         gdlm_release_threads(ls);
-        rv = gdlm_release_all_locks(ls);
-        if (rv)
-                log_info("gdlm_unmount: %d stray locks freed", rv);
+        BUG_ON(ls->all_locks_count);
 out:
         kfree(ls);
 }