dlm: use workqueue for callbacks
Instead of creating our own kthread (dlm_astd) to deliver
callbacks for all lockspaces, use a per-lockspace workqueue
to deliver the callbacks. This eliminates complications and
slowdowns from many lockspaces sharing the same thread.
Signed-off-by: David Teigland <teigland@redhat.com>
diff --git a/fs/dlm/recoverd.c b/fs/dlm/recoverd.c
index fd677c8..774da3c 100644
--- a/fs/dlm/recoverd.c
+++ b/fs/dlm/recoverd.c
@@ -58,13 +58,7 @@
mutex_lock(&ls->ls_recoverd_active);
- /*
- * Suspending and resuming dlm_astd ensures that no lkb's from this ls
- * will be processed by dlm_astd during recovery.
- */
-
- dlm_astd_suspend();
- dlm_astd_resume();
+ dlm_callback_suspend(ls);
/*
* Free non-master tossed rsb's. Master rsb's are kept on toss
@@ -202,6 +196,8 @@
dlm_adjust_timeouts(ls);
+ dlm_callback_resume(ls);
+
error = enable_locking(ls, rv->seq);
if (error) {
log_debug(ls, "enable_locking failed %d", error);
@@ -222,8 +218,6 @@
dlm_grant_after_purge(ls);
- dlm_astd_wake();
-
log_debug(ls, "recover %llx done: %u ms",
(unsigned long long)rv->seq,
jiffies_to_msecs(jiffies - start));