[PATCH] ocfs2: manually grant remote recovery lock

* fix a hang in recovery that occurred in dlmlock_remote.  the $RECOVERY
  lock was never moved to the granted queue even after getting DLM_NORMAL
  back from the master node.

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

1 files changed, 11 insertions, 0 deletions

diff --git a/fs/ocfs2/dlm/dlmlock.c b/fs/ocfs2/dlm/dlmlock.c
index e709412e6e32..671d4ff222cc 100644
--- a/fs/ocfs2/dlm/dlmlock.c
+++ b/fs/ocfs2/dlm/dlmlock.c
@@ -220,6 +220,17 @@ static enum dlm_status dlmlock_remote(struct dlm_ctxt *dlm,
                         dlm_error(status);
                 dlm_revert_pending_lock(res, lock);
                 dlm_lock_put(lock);
+        } else if (dlm_is_recovery_lock(res->lockname.name, 
+                                        res->lockname.len)) {
+                /* special case for the $RECOVERY lock.
+                 * there will never be an AST delivered to put
+                 * this lock on the proper secondary queue
+                 * (granted), so do it manually. */
+                mlog(0, "%s: $RECOVERY lock for this node (%u) is "
+                     "mastered by %u; got lock, manually granting (no ast)\n",
+                     dlm->name, dlm->node_num, res->owner);
+                list_del_init(&lock->list);
+                list_add_tail(&lock->list, &res->granted);
         }
         spin_unlock(&res->spinlock);