From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx179.postini.com [74.125.245.179]) by kanga.kvack.org (Postfix) with SMTP id 4C6506B0032 for ; Wed, 7 Aug 2013 16:45:32 -0400 (EDT) Received: by mail-qa0-f48.google.com with SMTP id o19so1324685qap.14 for ; Wed, 07 Aug 2013 13:45:31 -0700 (PDT) Date: Wed, 7 Aug 2013 16:45:27 -0400 From: Tejun Heo Subject: Re: [PATCH v2] mm: make lru_add_drain_all() selective Message-ID: <20130807204527.GB28039@mtj.dyndns.org> References: <201308071458.r77EwuJV013106@farm-0012.internal.tilera.com> <201308071551.r77FpWTf022475@farm-0012.internal.tilera.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <201308071551.r77FpWTf022475@farm-0012.internal.tilera.com> Sender: owner-linux-mm@kvack.org List-ID: To: Chris Metcalf Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, Thomas Gleixner , Frederic Weisbecker On Tue, Aug 06, 2013 at 04:22:39PM -0400, Chris Metcalf wrote: > This change makes lru_add_drain_all() only selectively interrupt > the cpus that have per-cpu free pages that can be drained. > > This is important in nohz mode where calling mlockall(), for > example, otherwise will interrupt every core unnecessarily. Can you please split off workqueue part into a separate patch with proper description? I don't mind the change eventually going through -mm but it's nasty to bury workqueue API update with another change without explanation or justification. Thanks. -- tejun -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org