ocfs2_dlm: wake up sleepers on the lockres waitqueue

The dlm was not waking up threads waiting on the lockres wait queue,
waiting for the lockres to be no longer be in the DLM_LOCK_RES_IN_PROGRESS
and the DLM_LOCK_RES_MIGRATING states.

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

1 files changed, 4 insertions, 1 deletions

diff --git a/fs/ocfs2/dlm/dlmconvert.c b/fs/ocfs2/dlm/dlmconvert.c
index c764dc8e40a..42c17744485 100644
--- a/fs/ocfs2/dlm/dlmconvert.c
+++ b/fs/ocfs2/dlm/dlmconvert.c
@@ -428,7 +428,7 @@ int dlm_convert_lock_handler(struct o2net_msg *msg, u32 len, void *data)
         struct dlm_lockstatus *lksb;
         enum dlm_status status = DLM_NORMAL;
         u32 flags;
-        int call_ast = 0, kick_thread = 0, ast_reserved = 0;
+        int call_ast = 0, kick_thread = 0, ast_reserved = 0, wake = 0;
 
         if (!dlm_grab(dlm)) {
                 dlm_error(DLM_REJECTED);
@@ -524,8 +524,11 @@ int dlm_convert_lock_handler(struct o2net_msg *msg, u32 len, void *data)
                                              cnv->requested_type,
                                              &call_ast, &kick_thread);
                 res->state &= ~DLM_LOCK_RES_IN_PROGRESS;
+                wake = 1;
         }
         spin_unlock(&res->spinlock);
+        if (wake)
+                wake_up(&res->wq);
 
         if (status != DLM_NORMAL) {
                 if (status != DLM_NOTQUEUED)