Received: by 2002:a05:6a10:c604:0:0:0:0 with SMTP id y4csp637547pxt; Thu, 5 Aug 2021 08:07:53 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyhCTME3uOos7Dj3F5nzwflEJ5Cvwefw7RLmVuzdrb5jGRZrMAC3AFYEKiIIDKUxGexBz6C X-Received: by 2002:a05:6638:3468:: with SMTP id q40mr5172571jav.117.1628176073071; Thu, 05 Aug 2021 08:07:53 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1628176073; cv=none; d=google.com; s=arc-20160816; b=jIQuOfK3Ubs9KUjo7lhMrclBkL7NCagpft6Ndk2iQLQiQo9/f95zgMyyGXjZi0HELQ LE7UzCOeFt+fCrU5oF91VlUetKAgV4u9Rl8gP029Fgw7aUR0KfLiCQmjPT6DnJEjS9V0 xvYDjUMxij8waKrKeAZg0u7WUkHJTZ8X08NaCfPaz2cVm487ZBf0O4PW5/ocxzQxcA2p tu21s8/W0FfUQbqDeqb5yiyyd+1MBbVaa6jryMrT6ZCGpts7FgM0+nrejoVHdzZd0ET2 0ejpGoWE46YeQUCH3L9oAZz5qPjt7O/DJdHmPJio12bG4RQ3AGfEqQtVAGjmRd23RNpP jNTw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:references:in-reply-to:references:in-reply-to :message-id:date:subject:cc:to:from; bh=w97OjxORL5teci7qSziBI2ok1TUH9hIhpUsUYd4huEs=; b=0B1WfPCTvWbB6F/2pkAU03P8XZA87fi2RUaItfwSCKdvrCIldbZ7IO0VpsVH1AvLfz FN09J0a19q3LrhrLmNY6wcsEvITTPLRSdzfUQBRmlpOVHNO4SEVtr8o1PAlb/Li4O2SY dbMBBdNuvzhP9Z1OuhelJCj2lLEvdk69HWjp1FITa73QZM7xm1JI5KBBBUwbCT0Pf+I3 DEwY5b7YtrB+EcWHLndnkQfTY440h8SEaEFQBiEri9HZPfD7AQHen/37JPoz1tjZx8vx TRZwTQLSm/UNyGlXSrOv1HKYNpZQJksqrX+0dAyRP4ZnFordV4J/zCY5p+t5hN1Dsd8k b/cQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=alibaba.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id f16si7482837ilc.93.2021.08.05.08.07.39; Thu, 05 Aug 2021 08:07:53 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=alibaba.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241505AbhHEPG1 (ORCPT + 99 others); Thu, 5 Aug 2021 11:06:27 -0400 Received: from out30-44.freemail.mail.aliyun.com ([115.124.30.44]:37379 "EHLO out30-44.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240044AbhHEPGY (ORCPT ); Thu, 5 Aug 2021 11:06:24 -0400 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R951e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04420;MF=baolin.wang@linux.alibaba.com;NM=1;PH=DS;RN=4;SR=0;TI=SMTPD_---0Ui3E80K_1628175968; Received: from localhost(mailfrom:baolin.wang@linux.alibaba.com fp:SMTPD_---0Ui3E80K_1628175968) by smtp.aliyun-inc.com(127.0.0.1); Thu, 05 Aug 2021 23:06:08 +0800 From: Baolin Wang To: akpm@linux-foundation.org Cc: baolin.wang@linux.alibaba.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH 2/5] mm: migrate: Introduce a local variable to get the number of pages Date: Thu, 5 Aug 2021 23:05:57 +0800 Message-Id: X-Mailer: git-send-email 1.8.3.1 In-Reply-To: References: In-Reply-To: References: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Use thp_nr_pages() instead of compound_nr() to get the number of pages for THP page, meanwhile introducing a local variable 'nr_pages' to avoid getting the number of pages repeatedly. Signed-off-by: Baolin Wang --- mm/migrate.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/mm/migrate.c b/mm/migrate.c index 5559571..eeba4c6 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -2106,6 +2106,7 @@ static struct page *alloc_misplaced_dst_page_thp(struct page *page, static int numamigrate_isolate_page(pg_data_t *pgdat, struct page *page) { int page_lru; + int nr_pages = thp_nr_pages(page); VM_BUG_ON_PAGE(compound_order(page) && !PageTransHuge(page), page); @@ -2114,7 +2115,7 @@ static int numamigrate_isolate_page(pg_data_t *pgdat, struct page *page) return 0; /* Avoid migrating to a node that is nearly full */ - if (!migrate_balanced_pgdat(pgdat, compound_nr(page))) + if (!migrate_balanced_pgdat(pgdat, nr_pages)) return 0; if (isolate_lru_page(page)) @@ -2122,7 +2123,7 @@ static int numamigrate_isolate_page(pg_data_t *pgdat, struct page *page) page_lru = page_is_file_lru(page); mod_node_page_state(page_pgdat(page), NR_ISOLATED_ANON + page_lru, - thp_nr_pages(page)); + nr_pages); /* * Isolating the page has taken another reference, so the -- 1.8.3.1