ocfs2: move dlm work to a private work queue

The work that is done can block for long periods of time and so is not
appropriate for keventd.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>

1 files changed, 11 insertions, 2 deletions

diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c
index f0549e9f0024..22e6a5b69584 100644
--- a/fs/ocfs2/dlm/dlmrecovery.c
+++ b/fs/ocfs2/dlm/dlmrecovery.c
@@ -157,12 +157,21 @@ void dlm_dispatch_work(void *data)
         struct list_head *iter, *iter2;
         struct dlm_work_item *item;
         dlm_workfunc_t *workfunc;
+        int tot=0;
+
+        if (!dlm_joined(dlm))
+                return;
 
         spin_lock(&dlm->work_lock);
         list_splice_init(&dlm->work_list, &tmp_list);
         spin_unlock(&dlm->work_lock);
 
         list_for_each_safe(iter, iter2, &tmp_list) {
+                tot++;
+        }
+        mlog(0, "%s: work thread has %d work items\n", dlm->name, tot);
+
+        list_for_each_safe(iter, iter2, &tmp_list) {
                 item = list_entry(iter, struct dlm_work_item, list);
                 workfunc = item->func;
                 list_del_init(&item->list);
@@ -851,7 +860,7 @@ int dlm_request_all_locks_handler(struct o2net_msg *msg, u32 len, void *data)
         spin_lock(&dlm->work_lock);
         list_add_tail(&item->list, &dlm->work_list);
         spin_unlock(&dlm->work_lock);
-        schedule_work(&dlm->dispatched_work);
+        queue_work(dlm->dlm_worker, &dlm->dispatched_work);
 
         dlm_put(dlm);
         return 0;
@@ -1401,7 +1410,7 @@ int dlm_mig_lockres_handler(struct o2net_msg *msg, u32 len, void *data)
         spin_lock(&dlm->work_lock);
         list_add_tail(&item->list, &dlm->work_list);
         spin_unlock(&dlm->work_lock);
-        schedule_work(&dlm->dispatched_work);
+        queue_work(dlm->dlm_worker, &dlm->dispatched_work);
 
 leave:
         dlm_put(dlm);