Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755968Ab0KKTAm (ORCPT ); Thu, 11 Nov 2010 14:00:42 -0500 Received: from www.tglx.de ([62.245.132.106]:34484 "EHLO www.tglx.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752107Ab0KKTAl (ORCPT ); Thu, 11 Nov 2010 14:00:41 -0500 Date: Thu, 11 Nov 2010 20:00:26 +0100 (CET) From: Thomas Gleixner To: Nicolas Pitre cc: Linus Walleij , "linux-kernel@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , Colin Cross , Rabin VINCENT Subject: Re: [PATCH] RFC: nomadik: expand timesource to 63 bits In-Reply-To: Message-ID: References: <1289466356-16697-1-git-send-email-linus.walleij@stericsson.com> <4CDBC60F.8070905@stericsson.com> User-Agent: Alpine 2.00 (LFD 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 817 Lines: 21 On Thu, 11 Nov 2010, Nicolas Pitre wrote: > On Thu, 11 Nov 2010, Thomas Gleixner wrote: > > Well, you don't need the keepwarm() timer, if you just call > > sched_clock() in the idle wakeup path, so the magic in the NOHZ code > > will ensure that you reread the thing timely. > > You still have to make sure you get out of idle before 16 secs has > passed. No, I meant to put it into the idle loop, right after mach_idle() or whatever is called to put the CPU into deep power sleep. The clockevents core code makes sure that you get interrupted in time. Thanks, 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/