From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754193AbcBWPPA (ORCPT ); Tue, 23 Feb 2016 10:15:00 -0500 Received: from outbound-smtp11.blacknight.com ([46.22.139.16]:38125 "EHLO outbound-smtp11.blacknight.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752920AbcBWPEx (ORCPT ); Tue, 23 Feb 2016 10:04:53 -0500 From: Mel Gorman To: Linux-MM Cc: Rik van Riel , Vlastimil Babka , Johannes Weiner , LKML , Mel Gorman Subject: [PATCH 02/27] mm, vmscan: Check if cpusets are enabled during direct reclaim Date: Tue, 23 Feb 2016 15:04:25 +0000 Message-Id: <1456239890-20737-3-git-send-email-mgorman@techsingularity.net> X-Mailer: git-send-email 2.6.4 In-Reply-To: <1456239890-20737-1-git-send-email-mgorman@techsingularity.net> References: <1456239890-20737-1-git-send-email-mgorman@techsingularity.net> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Direct reclaim obeys cpusets but misses the cpusets_enabled() check. The overhead is unlikely to be measurable in the direct reclaim path which is expensive but there is no harm is doing it. Signed-off-by: Mel Gorman --- mm/vmscan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/vmscan.c b/mm/vmscan.c index 86eb21491867..de8d6226e026 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -2566,7 +2566,7 @@ static void shrink_zones(struct zonelist *zonelist, struct scan_control *sc) * to global LRU. */ if (global_reclaim(sc)) { - if (!cpuset_zone_allowed(zone, + if (cpusets_enabled() && !cpuset_zone_allowed(zone, GFP_KERNEL | __GFP_HARDWALL)) continue; -- 2.6.4