From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wg0-f46.google.com (mail-wg0-f46.google.com [74.125.82.46]) by kanga.kvack.org (Postfix) with ESMTP id 257176B0070 for ; Thu, 2 Oct 2014 11:49:42 -0400 (EDT) Received: by mail-wg0-f46.google.com with SMTP id l18so711210wgh.5 for ; Thu, 02 Oct 2014 08:49:41 -0700 (PDT) Received: from mx2.suse.de (cantor2.suse.de. [195.135.220.15]) by mx.google.com with ESMTPS id ex10si1640106wid.6.2014.10.02.08.49.40 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Thu, 02 Oct 2014 08:49:40 -0700 (PDT) From: Vlastimil Babka Subject: [PATCH 2/4] mm, page_isolation: drain single zone pcplists Date: Thu, 2 Oct 2014 17:48:58 +0200 Message-Id: <1412264940-15738-3-git-send-email-vbabka@suse.cz> In-Reply-To: <1412264940-15738-1-git-send-email-vbabka@suse.cz> References: <1412264940-15738-1-git-send-email-vbabka@suse.cz> Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Vlastimil Babka , Naoya Horiguchi , Mel Gorman , Rik van Riel , Yasuaki Ishimatsu , Zhang Yanfei , Xishi Qiu , Vladimir Davydov , Joonsoo Kim When setting MIGRATETYPE_ISOLATE on a pageblock, pcplists are drained to have a better chance that all pages will be successfully isolated and not left in the per-cpu caches. Since isolation is always concerned with a single zone, we can reduce the pcplists drain to the single zone, which is now possible. The change should make memory isolation faster and not disturbing unrelated pcplists anymore. Signed-off-by: Vlastimil Babka Cc: Naoya Horiguchi Cc: Mel Gorman Cc: Rik van Riel Cc: Yasuaki Ishimatsu Cc: Zhang Yanfei Cc: Xishi Qiu Cc: Vladimir Davydov Cc: Joonsoo Kim --- mm/page_isolation.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/page_isolation.c b/mm/page_isolation.c index a57f082..3c49ef0 100644 --- a/mm/page_isolation.c +++ b/mm/page_isolation.c @@ -67,7 +67,7 @@ out: spin_unlock_irqrestore(&zone->lock, flags); if (!ret) - drain_all_pages(NULL); + drain_all_pages(zone); return ret; } -- 1.8.4.5 -- 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