From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262367AbVG0UhG (ORCPT ); Wed, 27 Jul 2005 16:37:06 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261320AbVG0Uef (ORCPT ); Wed, 27 Jul 2005 16:34:35 -0400 Received: from dsl027-180-168.sfo1.dsl.speakeasy.net ([216.27.180.168]:34519 "EHLO sunset.davemloft.net") by vger.kernel.org with ESMTP id S262367AbVG0UdU (ORCPT ); Wed, 27 Jul 2005 16:33:20 -0400 Date: Wed, 27 Jul 2005 13:33:17 -0700 (PDT) Message-Id: <20050727.133317.115640883.davem@davemloft.net> To: rml@novell.com Cc: akpm@osdl.org, paulus@samba.org, linux-kernel@vger.kernel.org, ttb@tentacle.dhs.org Subject: Re: [patch] inotify: ppc64 syscalls. From: "David S. Miller" In-Reply-To: <1122496262.21253.190.camel@betsy> References: <1122485496.21253.170.camel@betsy> <20050727.132701.115907512.davem@davemloft.net> <1122496262.21253.190.camel@betsy> X-Mailer: Mew version 4.2 on Emacs 21.4 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org From: Robert Love Date: Wed, 27 Jul 2005 16:31:02 -0400 > On Wed, 2005-07-27 at 13:27 -0700, David S. Miller wrote: > > > You'll notice that sys_ppc32.c has a ton of shims which purely > > exist to sign extend "int" system call arguments. Sparc64 does > > something similarly, but in assembler so that we don't eat the > > overhead of a full stack frame just to sign extend arguments. > > Yah, but it looked like they did the sign extend thing for every int but > file descriptors, and fd's are the only int's we have. Ok, works for me :-)