Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262588AbVCPNww (ORCPT ); Wed, 16 Mar 2005 08:52:52 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262590AbVCPNww (ORCPT ); Wed, 16 Mar 2005 08:52:52 -0500 Received: from mx2.elte.hu ([157.181.151.9]:4799 "EHLO mx2.elte.hu") by vger.kernel.org with ESMTP id S262588AbVCPNwu (ORCPT ); Wed, 16 Mar 2005 08:52:50 -0500 Date: Wed, 16 Mar 2005 14:52:30 +0100 From: Ingo Molnar To: Oleg Nesterov Cc: Christoph Lameter , linux-kernel@vger.kernel.org, Shai Fultheim , Andrew Morton Subject: Re: [PATCH 2/2] del_timer_sync: proof of concept Message-ID: <20050316135230.GB24970@elte.hu> References: <4231E959.141F7D85@tv-sign.ru> <42371941.CCBAB134@tv-sign.ru> <20050316090024.GB11582@elte.hu> <423821F9.19FD92C8@tv-sign.ru> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <423821F9.19FD92C8@tv-sign.ru> User-Agent: Mutt/1.4.1i X-ELTE-SpamVersion: MailScanner 4.31.6-itk1 (ELTE 1.2) SpamAssassin 2.63 ClamAV 0.73 X-ELTE-VirusStatus: clean X-ELTE-SpamCheck: no X-ELTE-SpamCheck-Details: score=-4.9, required 5.9, autolearn=not spam, BAYES_00 -4.90 X-ELTE-SpamLevel: X-ELTE-SpamScore: -4 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 662 Lines: 18 * Oleg Nesterov wrote: > I think that separate timer->pending field will require more changes, > because we can't read/write base+pending atomically. i think that's the killer argument in favor of the bit-trick. Being able to read/write base+pending atomically is a good excuse. Using less RAM alone is not necessarily a good excuse. Andrew, could we give Oleg's 2 patches a whirl in -mm? Ingo - 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/