dlm: keep cached master rsbs during recovery

To prevent the master of an rsb from changing rapidly, an unused rsb is kept
on the "toss list" for a period of time to be reused.  The toss list was
being cleared completely for each recovery, which is unnecessary.  Much of
the benefit of the toss list can be maintained if nodes keep rsb's in their
toss list that they are the master of.  These rsb's need to be included
when the resource directory is rebuilt during recovery.

Signed-off-by: David Teigland <teigland@redhat.com>

fs/dlm/lock.c

@@ -489,12 +489,6 @@ static int find_rsb(struct dlm_ls *ls, char *name, int namelen,
 	return error;
 }
 
-int dlm_find_rsb(struct dlm_ls *ls, char *name, int namelen,
-		 unsigned int flags, struct dlm_rsb **r_ret)
-{
-	return find_rsb(ls, name, namelen, flags, r_ret);
-}
-
 /* This is only called to add a reference when the code already holds
    a valid reference to the rsb, so there's no need for locking. */