Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755738Ab1EKQgO (ORCPT ); Wed, 11 May 2011 12:36:14 -0400 Received: from mail-yx0-f174.google.com ([209.85.213.174]:63086 "EHLO mail-yx0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932125Ab1EKQOA (ORCPT ); Wed, 11 May 2011 12:14:00 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=vrfy.org; s=google; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type; b=ld2qAA1Z+LiaO0e3TmbagtxM+kUnkm+aXGFwJPHG3LMQFKPZd40BdrOlqbaWjWVSqy jJAkfTcJ0Wmn5mfOUbMnIirI8T0ABJQkeJwez4/aLdDRk4/C05qQcBjsKNPqxgrdjjo4 gGvIVopeI3vLxoCzdxlSo7xEbYCS0J9bEtM+0= MIME-Version: 1.0 In-Reply-To: <1305122518.2914.224.camel@laptop> References: <1305109433.2914.208.camel@laptop> <1305121541.2914.213.camel@laptop> <1305122518.2914.224.camel@laptop> From: Kay Sievers Date: Wed, 11 May 2011 16:22:52 +0200 Message-ID: Subject: Re: [tip:timers/core] timerfd: Allow timers to be cancelled when clock was set To: Peter Zijlstra Cc: linux-kernel@vger.kernel.org, mingo@redhat.com, hpa@zytor.com, johnstul@us.ibm.com, davidel@xmailserver.org, virtuoso@slind.org, tglx@linutronix.de, chris.friesen@genband.com, kirill@shutemov.name, linux-tip-commits@vger.kernel.org Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 888 Lines: 20 On Wed, May 11, 2011 at 16:01, Peter Zijlstra wrote: > On Wed, 2011-05-11 at 15:52 +0200, Kay Sievers wrote: >> >> No, fixed time spans have never been a problem, and are not the >> example here. It's about the normal wall clock, that wakes up every >> minute and updates the numbers on the screen. > > 'wakes up every minute' sounds like a fixed time interval to me. Right, but if the wall clock changes, it must not wait for the full minute to update the numbers, they need to update immediately with the new wall clock time. Stuff woke up every second in the past to do that, but that's not what we want today. Kay -- 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/