Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932867AbbFHN7O (ORCPT ); Mon, 8 Jun 2015 09:59:14 -0400 Received: from cantor2.suse.de ([195.135.220.15]:52583 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753319AbbFHN5P (ORCPT ); Mon, 8 Jun 2015 09:57:15 -0400 From: Mel Gorman To: Linux-MM Cc: Rik van Riel , Johannes Weiner , Michal Hocko , LKML , 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> X-Mailer: git-send-email 2.3.5 In-Reply-To: <1433771791-30567-1-git-send-email-mgorman@suse.de> References: <1433771791-30567-1-git-send-email-mgorman@suse.de> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 981 Lines: 30 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 from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/