Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759025Ab0HDUtO (ORCPT ); Wed, 4 Aug 2010 16:49:14 -0400 Received: from cavan.codon.org.uk ([93.93.128.6]:52747 "EHLO cavan.codon.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751306Ab0HDUtB (ORCPT ); Wed, 4 Aug 2010 16:49:01 -0400 Date: Wed, 4 Aug 2010 21:48:39 +0100 From: Matthew Garrett To: Pavel Machek Cc: "Paul E. McKenney" , Arjan van de Ven , Arve Hj?nnev?g , linux-pm@lists.linux-foundation.org, linux-kernel@vger.kernel.org, florian@mickler.org, rjw@sisk.pl, stern@rowland.harvard.edu, swetland@google.com, peterz@infradead.org, tglx@linutronix.de, alan@lxorguk.ukuu.org.uk Subject: Re: Attempted summary of suspend-blockers LKML thread Message-ID: <20100804204839.GA4743@srcf.ucam.org> References: <20100801054816.GI2470@linux.vnet.ibm.com> <20100731230101.7cc1d8c7@infradead.org> <20100801191228.GL2470@linux.vnet.ibm.com> <20100801154708.19817b75@infradead.org> <20100802011006.GS2470@linux.vnet.ibm.com> <20100803183447.0275c134@infradead.org> <20100804163216.GB24163@linux.vnet.ibm.com> <20100804163509.GA31523@srcf.ucam.org> <20100804204208.GA21452@elf.ucw.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100804204208.GA21452@elf.ucw.cz> User-Agent: Mutt/1.5.18 (2008-05-17) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: mjg59@cavan.codon.org.uk X-SA-Exim-Scanned: No (on cavan.codon.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 700 Lines: 17 On Wed, Aug 04, 2010 at 10:42:08PM +0200, Pavel Machek wrote: > This came like a bit of a shock to me ("why do they make it so complex > then"), but... it also means that as soon as you are able to stop > "unwanted" processing, you can just leave normal cpuidle mechanisms to > deal with the rest... How do you differentiate between "unwanted" and "wanted" processing in the same task in a race-free manner? -- Matthew Garrett | mjg59@srcf.ucam.org -- 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/