diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index 288cc04..edb3b6e 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -404,9 +404,9 @@
 	if(pTcon == NULL)
 		return -EINVAL;
 
-	down(&file->f_dentry->d_sb->s_vfs_rename_sem);
+	mutex_lock(&file->f_dentry->d_sb->s_vfs_rename_mutex);
 	full_path = build_path_from_dentry(file->f_dentry);
-	up(&file->f_dentry->d_sb->s_vfs_rename_sem);
+	mutex_unlock(&file->f_dentry->d_sb->s_vfs_rename_mutex);
 
 	if(full_path == NULL) {
 		return -ENOMEM;