diff --git a/[refs] b/[refs]
index c1004f6be92c..a6fa357567f9 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 74f9fdfa1f229284ee1ea58fa47f2cdeeb12f6fe
+refs/heads/master: 20ddee2c75339cc095f6191c3115f81da8955e96
diff --git a/trunk/fs/inode.c b/trunk/fs/inode.c
index 6f6250c08ce6..27ee1af50d02 100644
--- a/trunk/fs/inode.c
+++ b/trunk/fs/inode.c
@@ -1250,10 +1250,13 @@ void file_update_time(struct file *file)
 	struct inode *inode = file->f_path.dentry->d_inode;
 	struct timespec now;
 	int sync_it = 0;
+	int err;
 
 	if (IS_NOCMTIME(inode))
 		return;
-	if (IS_RDONLY(inode))
+
+	err = mnt_want_write(file->f_path.mnt);
+	if (err)
 		return;
 
 	now = current_fs_time(inode->i_sb);
@@ -1274,6 +1277,7 @@ void file_update_time(struct file *file)
 
 	if (sync_it)
 		mark_inode_dirty_sync(inode);
+	mnt_drop_write(file->f_path.mnt);
 }
 
 EXPORT_SYMBOL(file_update_time);