From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matthew Garrett Subject: Re: Attempted summary of suspend-blockers LKML thread Date: Wed, 4 Aug 2010 21:48:39 +0100 Message-ID: <20100804204839.GA4743__9220.39730144224$1280955120$gmane$org@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-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <20100804204208.GA21452@elf.ucw.cz> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-pm-bounces@lists.linux-foundation.org Errors-To: linux-pm-bounces@lists.linux-foundation.org To: Pavel Machek Cc: peterz@infradead.org, swetland@google.com, linux-kernel@vger.kernel.org, florian@mickler.org, linux-pm@lists.linux-foundation.org, "Paul E. McKenney" , tglx@linutronix.de, alan@lxorguk.ukuu.org.uk, Arjan van de Ven List-Id: linux-pm@vger.kernel.org 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