--- linux-2.4.21/fs/nfs/dir.c.diff	2003-08-28 12:13:22.000000000 -0400
+++ linux-2.4.21/fs/nfs/dir.c	2003-08-28 12:13:47.000000000 -0400
@@ -1278,7 +1278,7 @@ nfs_permission(struct inode *inode, int 
 		if (cache->cred)
 			put_rpccred(cache->cred);
 		cache->cred = cred;
-		cache->mask = mask;
+		cache->mask |= mask;
 		cache->err = error;
 		return error;
 	}