From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wi0-f180.google.com (mail-wi0-f180.google.com [209.85.212.180]) by kanga.kvack.org (Postfix) with ESMTP id 7E517900020 for ; Mon, 8 Jun 2015 09:57:34 -0400 (EDT) Received: by wifx6 with SMTP id x6so87848601wif.0 for ; Mon, 08 Jun 2015 06:57:34 -0700 (PDT) Received: from mx2.suse.de (cantor2.suse.de. [195.135.220.15]) by mx.google.com with ESMTPS id kv9si5292968wjb.151.2015.06.08.06.57.10 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Mon, 08 Jun 2015 06:57:10 -0700 (PDT) From: Mel Gorman Subject: [PATCH 24/25] mm, page_alloc: Use ac->classzone_idx instead of zone_idx(preferred_zone) Date: Mon, 8 Jun 2015 14:56:30 +0100 Message-Id: <1433771791-30567-25-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 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 --- mm/page_alloc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 4108743eb801..886102cc9b09 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -2307,7 +2307,7 @@ static void wake_all_kswapds(unsigned int order, const struct alloc_context *ac) for_each_zone_zonelist_nodemask(zone, z, ac->zonelist, ac->high_zoneidx, ac->nodemask) - wakeup_kswapd(zone, order, zone_idx(ac->preferred_zone)); + wakeup_kswapd(zone, order, ac->classzone_idx); } static inline int -- 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