switch ->mknod() to umode_t

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/nilfs2/namei.c b/fs/nilfs2/namei.c
index fcd86c3..1cd3f62 100644
--- a/fs/nilfs2/namei.c
+++ b/fs/nilfs2/namei.c
@@ -112,7 +112,7 @@
 }
 
 static int
-nilfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t rdev)
+nilfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t rdev)
 {
 	struct inode *inode;
 	struct nilfs_transaction_info ti;