From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 76F0DC43381 for ; Thu, 28 Feb 2019 08:35:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4A371218B0 for ; Thu, 28 Feb 2019 08:35:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731893AbfB1Ifw (ORCPT ); Thu, 28 Feb 2019 03:35:52 -0500 Received: from relay.sw.ru ([185.231.240.75]:57904 "EHLO relay.sw.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725999AbfB1Ift (ORCPT ); Thu, 28 Feb 2019 03:35:49 -0500 Received: from [172.16.25.12] (helo=i7.sw.ru) by relay.sw.ru with esmtp (Exim 4.91) (envelope-from ) id 1gzHAK-0008R2-6M; Thu, 28 Feb 2019 11:35:40 +0300 From: Andrey Ryabinin To: Andrew Morton Cc: Johannes Weiner , Vlastimil Babka , Rik van Riel , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Andrey Ryabinin , Michal Hocko , Mel Gorman Subject: [PATCH v2 3/4] mm/compaction: pass pgdat to too_many_isolated() instead of zone Date: Thu, 28 Feb 2019 11:33:28 +0300 Message-Id: <20190228083329.31892-3-aryabinin@virtuozzo.com> X-Mailer: git-send-email 2.19.2 In-Reply-To: <20190228083329.31892-1-aryabinin@virtuozzo.com> References: <20190228083329.31892-1-aryabinin@virtuozzo.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org too_many_isolated() in mm/compaction.c looks only at node state, so it makes more sense to change argument to pgdat instead of zone. Signed-off-by: Andrey Ryabinin Acked-by: Vlastimil Babka Acked-by: Rik van Riel Cc: Johannes Weiner Cc: Michal Hocko Cc: Mel Gorman --- Changes since v1: - Added acks mm/compaction.c | 19 +++++++++---------- 1 file changed, 9 insertions(+), 10 deletions(-) diff --git a/mm/compaction.c b/mm/compaction.c index a3305f13a138..b2d02aba41d8 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -738,16 +738,16 @@ isolate_freepages_range(struct compact_control *cc, } /* Similar to reclaim, but different enough that they don't share logic */ -static bool too_many_isolated(struct zone *zone) +static bool too_many_isolated(pg_data_t *pgdat) { unsigned long active, inactive, isolated; - inactive = node_page_state(zone->zone_pgdat, NR_INACTIVE_FILE) + - node_page_state(zone->zone_pgdat, NR_INACTIVE_ANON); - active = node_page_state(zone->zone_pgdat, NR_ACTIVE_FILE) + - node_page_state(zone->zone_pgdat, NR_ACTIVE_ANON); - isolated = node_page_state(zone->zone_pgdat, NR_ISOLATED_FILE) + - node_page_state(zone->zone_pgdat, NR_ISOLATED_ANON); + inactive = node_page_state(pgdat, NR_INACTIVE_FILE) + + node_page_state(pgdat, NR_INACTIVE_ANON); + active = node_page_state(pgdat, NR_ACTIVE_FILE) + + node_page_state(pgdat, NR_ACTIVE_ANON); + isolated = node_page_state(pgdat, NR_ISOLATED_FILE) + + node_page_state(pgdat, NR_ISOLATED_ANON); return isolated > (inactive + active) / 2; } @@ -774,8 +774,7 @@ static unsigned long isolate_migratepages_block(struct compact_control *cc, unsigned long low_pfn, unsigned long end_pfn, isolate_mode_t isolate_mode) { - struct zone *zone = cc->zone; - pg_data_t *pgdat = zone->zone_pgdat; + pg_data_t *pgdat = cc->zone->zone_pgdat; unsigned long nr_scanned = 0, nr_isolated = 0; struct lruvec *lruvec; unsigned long flags = 0; @@ -791,7 +790,7 @@ isolate_migratepages_block(struct compact_control *cc, unsigned long low_pfn, * list by either parallel reclaimers or compaction. If there are, * delay for some time until fewer pages are isolated */ - while (unlikely(too_many_isolated(zone))) { + while (unlikely(too_many_isolated(pgdat))) { /* async migration should just abort */ if (cc->mode == MIGRATE_ASYNC) return 0; -- 2.19.2