From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f50.google.com (mail-wm0-f50.google.com [74.125.82.50]) by kanga.kvack.org (Postfix) with ESMTP id CF36F6B0009 for ; Tue, 23 Feb 2016 13:04:48 -0500 (EST) Received: by mail-wm0-f50.google.com with SMTP id g62so212420129wme.0 for ; Tue, 23 Feb 2016 10:04:48 -0800 (PST) Received: from gum.cmpxchg.org (gum.cmpxchg.org. [85.214.110.215]) by mx.google.com with ESMTPS id s1si22600674wjf.66.2016.02.23.10.04.47 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 23 Feb 2016 10:04:47 -0800 (PST) Date: Tue, 23 Feb 2016 10:04:36 -0800 From: Johannes Weiner Subject: Re: [PATCH 01/27] mm, page_alloc: Use ac->classzone_idx instead of zone_idx(preferred_zone) Message-ID: <20160223180436.GA13816@cmpxchg.org> References: <1456239890-20737-1-git-send-email-mgorman@techsingularity.net> <1456239890-20737-2-git-send-email-mgorman@techsingularity.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1456239890-20737-2-git-send-email-mgorman@techsingularity.net> Sender: owner-linux-mm@kvack.org List-ID: To: Mel Gorman Cc: Linux-MM , Rik van Riel , Vlastimil Babka , LKML On Tue, Feb 23, 2016 at 03:04:24PM +0000, Mel Gorman wrote: > ac->classzone_idx is determined by the index of the preferred zone and cached > to avoid repeated calculations. wake_all_kswapds() should use it instead of > using zone_idx() within a loop. > > Signed-off-by: Mel Gorman Acked-by: Johannes Weiner -- 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 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754091AbcBWSEv (ORCPT ); Tue, 23 Feb 2016 13:04:51 -0500 Received: from gum.cmpxchg.org ([85.214.110.215]:59808 "EHLO gum.cmpxchg.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752692AbcBWSEu (ORCPT ); Tue, 23 Feb 2016 13:04:50 -0500 Date: Tue, 23 Feb 2016 10:04:36 -0800 From: Johannes Weiner To: Mel Gorman Cc: Linux-MM , Rik van Riel , Vlastimil Babka , LKML Subject: Re: [PATCH 01/27] mm, page_alloc: Use ac->classzone_idx instead of zone_idx(preferred_zone) Message-ID: <20160223180436.GA13816@cmpxchg.org> References: <1456239890-20737-1-git-send-email-mgorman@techsingularity.net> <1456239890-20737-2-git-send-email-mgorman@techsingularity.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1456239890-20737-2-git-send-email-mgorman@techsingularity.net> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Feb 23, 2016 at 03:04:24PM +0000, Mel Gorman wrote: > ac->classzone_idx is determined by the index of the preferred zone and cached > to avoid repeated calculations. wake_all_kswapds() should use it instead of > using zone_idx() within a loop. > > Signed-off-by: Mel Gorman Acked-by: Johannes Weiner