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=-7.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS autolearn=no 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 A6F3EC433DF for ; Wed, 12 Aug 2020 01:37:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 852552076C for ; Wed, 12 Aug 2020 01:37:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597196232; bh=RfbFLjOPMA5SSuEGyVjVv9gJr9ZbV1wuUX5oFpzNdy8=; h=Date:From:To:Subject:In-Reply-To:Reply-To:List-ID:From; b=wIwbXVpwd805QVGTbNsG9fKRJOgzGE+yFY/jRuVIGBbzqW4ysDl8JfPq2XhdT/ut9 TryCtFKFZqwHzctFviDxzY5EZyf5cnRHR/G8nMg0IqXuEOhkQVBgS7x9zuRVfxhnDm SZ0aFG5B/9ue+iiAkfMen7hxwnawlcRdSgLSJdbM= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726468AbgHLBhM (ORCPT ); Tue, 11 Aug 2020 21:37:12 -0400 Received: from mail.kernel.org ([198.145.29.99]:38794 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726235AbgHLBhM (ORCPT ); Tue, 11 Aug 2020 21:37:12 -0400 Received: from localhost.localdomain (c-73-231-172-41.hsd1.ca.comcast.net [73.231.172.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 7A4E420658; Wed, 12 Aug 2020 01:37:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597196231; bh=RfbFLjOPMA5SSuEGyVjVv9gJr9ZbV1wuUX5oFpzNdy8=; h=Date:From:To:Subject:In-Reply-To:From; b=cJO0WozDmfSncWcIT/pgJDWlDa6rM9gXYIXVHj5GmqeYjdkPHx8y3WFsC+4R1SLaG BvaY2YEmpBiGqXaHh71VxUgt51PePRih3YOwzlHqsa7j7GaHmmo2Wf9/z0SRhuTgOF OZz5BC9yzaPsKI7uj2JT3AJK1YtYIFQ/KfE57JXg= Date: Tue, 11 Aug 2020 18:37:11 -0700 From: Andrew Morton To: akpm@linux-foundation.org, guro@fb.com, hch@infradead.org, iamjoonsoo.kim@lge.com, linux-mm@kvack.org, mhocko@suse.com, mike.kravetz@oracle.com, mm-commits@vger.kernel.org, n-horiguchi@ah.jp.nec.com, torvalds@linux-foundation.org, vbabka@suse.cz Subject: [patch 131/165] mm/page_isolation: prefer the node of the source page Message-ID: <20200812013711.qkv1icdkY%akpm@linux-foundation.org> In-Reply-To: <20200811182949.e12ae9a472e3b5e27e16ad6c@linux-foundation.org> User-Agent: s-nail v14.8.16 Sender: mm-commits-owner@vger.kernel.org Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org From: Joonsoo Kim Subject: mm/page_isolation: prefer the node of the source page Patch series "clean-up the migration target allocation functions", v5. This patch (of 9): For locality, it's better to migrate the page to the same node rather than the node of the current caller's cpu. Link: http://lkml.kernel.org/r/1594622517-20681-1-git-send-email-iamjoonsoo.kim@lge.com Link: http://lkml.kernel.org/r/1594622517-20681-2-git-send-email-iamjoonsoo.kim@lge.com Signed-off-by: Joonsoo Kim Acked-by: Roman Gushchin Acked-by: Michal Hocko Reviewed-by: Vlastimil Babka Cc: Christoph Hellwig Cc: Mike Kravetz Cc: Naoya Horiguchi Signed-off-by: Andrew Morton --- mm/page_isolation.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/mm/page_isolation.c~mm-page_isolation-prefer-the-node-of-the-source-page +++ a/mm/page_isolation.c @@ -309,5 +309,7 @@ int test_pages_isolated(unsigned long st struct page *alloc_migrate_target(struct page *page, unsigned long private) { - return new_page_nodemask(page, numa_node_id(), &node_states[N_MEMORY]); + int nid = page_to_nid(page); + + return new_page_nodemask(page, nid, &node_states[N_MEMORY]); } _