Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757499AbXIVRKT (ORCPT ); Sat, 22 Sep 2007 13:10:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751927AbXIVRKH (ORCPT ); Sat, 22 Sep 2007 13:10:07 -0400 Received: from www.osadl.org ([213.239.205.134]:44492 "EHLO mail.tglx.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751097AbXIVRKF (ORCPT ); Sat, 22 Sep 2007 13:10:05 -0400 Subject: Re: RFC: A revised timerfd API From: Thomas Gleixner To: Michael Kerrisk Cc: Davide Libenzi , Ulrich Drepper , geoff@gclare.org.uk, lkml , Andrew Morton , Christoph Hellwig , Jonathan Corbet , Randy Dunlap , vda.linux@googlemail.com, Linus Torvalds , Lee Schermerhorn , David =?ISO-8859-1?Q?H=E4rdeman?= In-Reply-To: <46F514C9.5010208@gmx.net> References: <46EF7DDA.2070401@gmx.net> <46F514C9.5010208@gmx.net> Content-Type: text/plain Date: Sat, 22 Sep 2007 19:10:02 +0200 Message-Id: <1190481002.4035.51.camel@chaos> Mime-Version: 1.0 X-Mailer: Evolution 2.12.0 (2.12.0-3.fc8) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1115 Lines: 32 Michael, On Sat, 2007-09-22 at 15:12 +0200, Michael Kerrisk wrote: > Davide, Andrew, Linus, et al. > > At the start of this thread > (http://thread.gmane.org/gmane.linux.kernel/581115 ), I proposed 4 > alternatives to Davide's original timerfd API. Based on the feedback in > that thread (and one or two earlier comments): > > Let's dismiss option (a), since it is an unlovely multiplexing interface. > > Option (b) seems a viable. The most notable concern was from Thomas > Gleixner, that we might end up duplicating code from the POSIX timers API > within the timerfd API -- some eventual refactoring might mitigate this > problem. It should be possible to use the timerfd syscalls as wrappers for the posix timer implementation and add the discussed SIGEV_TIMERFD only internally in the kernel to signal the posix timer code new delivery mechanism. tglx - 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/