From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756358Ab2GCNlp (ORCPT ); Tue, 3 Jul 2012 09:41:45 -0400 Received: from mail-bk0-f46.google.com ([209.85.214.46]:41051 "EHLO mail-bk0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750986Ab2GCNlo (ORCPT ); Tue, 3 Jul 2012 09:41:44 -0400 Date: Tue, 3 Jul 2012 15:41:34 +0200 From: Richard Cochran To: John Stultz , Prarit Bhargava , Linux Kernel Subject: Re: [PATCH] [RFC] Potential fix for leapsecond caused futex related load spikes Message-ID: <20120703134134.GA19558@localhost.localdomain> References: <4FF06CAB.9020800@redhat.com> <4FF08154.3050407@redhat.com> <4FF088B9.1000308@us.ibm.com> <20120702101606.GA16008@localhost.localdomain> <20120702200821.GA31197@swielinga.nl> <20120703092325.GA18121@localhost.localdomain> <20120703120535.GA30998@swielinga.nl> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20120703120535.GA30998@swielinga.nl> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jul 03, 2012 at 02:05:36PM +0200, Sytse Wielinga wrote: > On Tue, Jul 03, 2012 at 11:23:25AM +0200, Richard Cochran wrote: > > I think the established practice of announcing the event by network is > > the only sane way of handling this issue. The list of TAI-UTC offsets > > belongs to what David Mills has called our "institutional memory", and > > this is a user space issue. The kernel's job is to just live in the > > moment and provide the right time for *now*. > > I do suppose hardware clock and file system times will have to be UTC (or > UTC-based local time) though? Yes, you are right. Those things can never change. What I have in mind is purely internal to the kernel and won't be visible in any way. Thanks, Richard