ocfs2: take mle reference during migration

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

diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c
index 376283e98c16c84838b332dcba10b5d714e5f769..0b7e29e916ed5033736c10e301e304ae2bf6d0b7 100644 (file)
--- a/fs/ocfs2/dlm/dlmmaster.c
+++ b/fs/ocfs2/dlm/dlmmaster.c
@@ -1710,6 +1710,23 @@ int dlm_assert_master_handler(struct o2net_msg *msg, u32 len, void *data)
                                     assert->node_idx);
                        }
                }
+               if (mle->type == DLM_MLE_MIGRATION) {
+                       if (flags & DLM_ASSERT_MASTER_MLE_CLEANUP) {
+                               mlog(0, "%s:%.*s: got cleanup assert"
+                                    " from %u for migration\n",
+                                    dlm->name, namelen, name,
+                                    assert->node_idx);
+                       } else if (!(flags & DLM_ASSERT_MASTER_FINISH_MIGRATION)) {
+                               mlog(0, "%s:%.*s: got unrelated assert"
+                                    " from %u for migration, ignoring\n",
+                                    dlm->name, namelen, name,
+                                    assert->node_idx);
+                               __dlm_put_mle(mle);
+                               spin_unlock(&dlm->master_lock);
+                               spin_unlock(&dlm->spinlock);
+                               goto done;
+                       }       
+               }
        }
        spin_unlock(&dlm->master_lock);