switch debugfs to umode_t

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/ocfs2/cluster/netdebug.c b/fs/ocfs2/cluster/netdebug.c
index dc45deb..73ba819 100644
--- a/fs/ocfs2/cluster/netdebug.c
+++ b/fs/ocfs2/cluster/netdebug.c
@@ -553,7 +553,7 @@
 
 int o2net_debugfs_init(void)
 {
-	mode_t mode = S_IFREG|S_IRUSR;
+	umode_t mode = S_IFREG|S_IRUSR;
 
 	o2net_dentry = debugfs_create_dir(O2NET_DEBUG_DIR, NULL);
 	if (o2net_dentry)