switch ->mknod() to umode_t

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/exofs/namei.c b/fs/exofs/namei.c
index 5864454..9dbf0c3 100644
--- a/fs/exofs/namei.c
+++ b/fs/exofs/namei.c
@@ -74,7 +74,7 @@
 	return err;
 }
 
-static int exofs_mknod(struct inode *dir, struct dentry *dentry, int mode,
+static int exofs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode,
 		       dev_t rdev)
 {
 	struct inode *inode;