LU-1206: mdt: Fix error handling in mdt_mfd_open

[fs/lustre-release.git] / lustre / obdclass / cl_io.c

diff --git a/lustre/obdclass/cl_io.c b/lustre/obdclass/cl_io.c
index cf18605..00ffe6d 100644 (file)
--- a/lustre/obdclass/cl_io.c
+++ b/lustre/obdclass/cl_io.c
@@ -28,6 +28,8 @@
 /*
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2012, Whamcloud, Inc.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -377,7 +379,13 @@ static int cl_lockset_lock_one(const struct lu_env *env,
 
         ENTRY;
 
-        lock = cl_lock_request(env, io, &link->cill_descr, "io", io);
+        if (io->ci_lockreq == CILR_PEEK) {
+                lock = cl_lock_peek(env, io, &link->cill_descr, "io", io);
+                if (lock == NULL)
+                        lock = ERR_PTR(-ENODATA);
+        } else
+                lock = cl_lock_request(env, io, &link->cill_descr, "io", io);
+
         if (!IS_ERR(lock)) {
                 link->cill_lock = lock;
                 cfs_list_move(&link->cill_linkage, &set->cls_curr);