From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261202AbUBTOH7 (ORCPT ); Fri, 20 Feb 2004 09:07:59 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261235AbUBTOEM (ORCPT ); Fri, 20 Feb 2004 09:04:12 -0500 Received: from natsmtp01.rzone.de ([81.169.145.166]:5022 "EHLO natsmtp01.rzone.de") by vger.kernel.org with ESMTP id S261202AbUBTOBA (ORCPT ); Fri, 20 Feb 2004 09:01:00 -0500 From: Arnd Bergmann To: Krzysztof Benedyczak Subject: Re: [RFC][PATCH] 2/6 POSIX message queues Date: Fri, 20 Feb 2004 14:55:25 +0100 User-Agent: KMail/1.5.4 Cc: linux-kernel@vger.kernel.org MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200402201455.25782.arnd@arndb.de> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Krzysztof Benedyczak wrote: > + > +struct mq_attr { > + long mq_flags; /* message queue flags */ > + long mq_maxmsg; /* maximum number of messages */ > + long mq_msgsize; /* maximum message size */ > + long mq_curmsgs; /* number of messages currently queued */ > +}; > + Does POSIX mandate that these have to be 'long'? If you can change them all to any of 'int', '__s32' or '__s64', the handlers for 32 bit system call emulation on 64 bit machines will get a lot simpler because the 32 bit user structures are then identical to the 64 bit ones. Arnd <><