From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wi0-f181.google.com (mail-wi0-f181.google.com [209.85.212.181]) by kanga.kvack.org (Postfix) with ESMTP id D4144900015 for ; Mon, 8 Jun 2015 09:57:16 -0400 (EDT) Received: by wiga1 with SMTP id a1so87455516wig.0 for ; Mon, 08 Jun 2015 06:57:16 -0700 (PDT) Received: from mx2.suse.de (cantor2.suse.de. [195.135.220.15]) by mx.google.com with ESMTPS id am6si5346095wjc.37.2015.06.08.06.57.02 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Mon, 08 Jun 2015 06:57:02 -0700 (PDT) From: Mel Gorman Subject: [PATCH 17/25] mm, vmscan: Check if cpusets are enabled during direct reclaim Date: Mon, 8 Jun 2015 14:56:23 +0100 Message-Id: <1433771791-30567-18-git-send-email-mgorman@suse.de> In-Reply-To: <1433771791-30567-1-git-send-email-mgorman@suse.de> References: <1433771791-30567-1-git-send-email-mgorman@suse.de> Sender: owner-linux-mm@kvack.org List-ID: To: Linux-MM Cc: Rik van Riel , Johannes Weiner , Michal Hocko , LKML , Mel Gorman 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 140aeefdebe1..e1fbd89ab750 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -2522,7 +2522,7 @@ static bool 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; -- 2.3.5 -- 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