Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752211AbXBJKc2 (ORCPT ); Sat, 10 Feb 2007 05:32:28 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752214AbXBJKc2 (ORCPT ); Sat, 10 Feb 2007 05:32:28 -0500 Received: from pentafluge.infradead.org ([213.146.154.40]:39512 "EHLO pentafluge.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752199AbXBJKc1 (ORCPT ); Sat, 10 Feb 2007 05:32:27 -0500 Subject: Re: -mm merge plans for 2.6.21 From: David Woodhouse To: Heiko Carstens Cc: Davide Libenzi , ralf@linux-mips.org, linux-mips@linux-mips.org, Andrew Morton , Alexey Dobriyan , Linux Kernel Mailing List , Ulrich Drepper In-Reply-To: <20070210102205.GB8145@osiris.boeblingen.de.ibm.com> References: <20070208150710.1324f6b4.akpm@linux-foundation.org> <1171042535.29713.96.camel@pmac.infradead.org> <20070209134516.2367a7aa.akpm@linux-foundation.org> <1171058342.29713.136.camel@pmac.infradead.org> <20070210102205.GB8145@osiris.boeblingen.de.ibm.com> Content-Type: text/plain Date: Sat, 10 Feb 2007 10:32:07 +0000 Message-Id: <1171103527.29713.228.camel@pmac.infradead.org> Mime-Version: 1.0 X-Mailer: Evolution 2.8.2.1 (2.8.2.1-3.fc6.dwmw2.1) Content-Transfer-Encoding: 7bit X-SRS-Rewrite: SMTP reverse-path rewritten from by pentafluge.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 840 Lines: 24 On Sat, 2007-02-10 at 11:22 +0100, Heiko Carstens wrote: > Which remembers me that I think that MIPS is using the non-compat version > of sys_epoll_pwait for compat syscalls. But maybe MIPS doesn't need a compat > syscall for some reason. Dunno. It's OK as long as the 64-bit kernel, N32 and O32 userspace all agree there there's 32 bits of padding between the fields of this structure: struct epoll_event { __u32 events; __u64 data; }; I suspect it's a fairly safe bet that N32 userspace agrees; if the O32 ABI is different then it would need the compat syscall. -- dwmw2 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/