LU-5431 lmv: release locks if lmv_intent_lock() fails

In lmv_intent_lock() if we will return an error then first release any
locks referenced by the intent.

Signed-off-by: John L. Hammond <john.hammond@intel.com>
Change-Id: I43fa0d3869cf365175750b0cf944145c13f31006
Reviewed-on: http://review.whamcloud.com/11319
Tested-by: Jenkins
Reviewed-by: wangdi <di.wang@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Lai Siyao <lai.siyao@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>

diff --git a/lustre/lmv/lmv_intent.c b/lustre/lmv/lmv_intent.c
index 212a8b2..096f83a 100644 (file)
--- a/lustre/lmv/lmv_intent.c
+++ b/lustre/lmv/lmv_intent.c
@@ -537,5 +537,27 @@ int lmv_intent_lock(struct obd_export *exp, struct md_op_data *op_data,
        else
                LBUG();
 
+       if (rc < 0) {
+               struct lustre_handle lock_handle;
+
+               if (it->d.lustre.it_lock_mode != 0) {
+                       lock_handle.cookie = it->d.lustre.it_lock_handle;
+                       ldlm_lock_decref(&lock_handle,
+                                        it->d.lustre.it_lock_mode);
+               }
+
+               it->d.lustre.it_lock_handle = 0;
+               it->d.lustre.it_lock_mode = 0;
+
+               if (it->d.lustre.it_remote_lock_mode != 0) {
+                       lock_handle.cookie = it->d.lustre.it_remote_lock_handle;
+                       ldlm_lock_decref(&lock_handle,
+                                        it->d.lustre.it_remote_lock_mode);
+               }
+
+               it->d.lustre.it_remote_lock_handle = 0;
+               it->d.lustre.it_remote_lock_mode = 0;
+       }
+
        RETURN(rc);
 }