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 03F7CC433E1 for ; Wed, 12 Aug 2020 21:02:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CC62720B1F for ; Wed, 12 Aug 2020 21:02:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597266153; bh=bK9ILJCA9ihlOw7KW7T9/1gOzx4vw79gt3MHhi7dq7U=; h=Date:From:To:Subject:Reply-To:List-ID:From; b=1xEx9agLAGZTedaKsW4+MQQ9OhXhthrlLXrFKhqEFpBbdyPHowtwjmPVbFOsAer5m 8NESWhERI+1kYGCdFjjz11Lo1NIvfmSipcbyJlr3EJ5O47/u/0YroRHiChCYiYDPOe rgmPlxFWSaNlXlLvvqkrCq1PgJRiQttEYK3hY4FU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726660AbgHLVCd (ORCPT ); Wed, 12 Aug 2020 17:02:33 -0400 Received: from mail.kernel.org ([198.145.29.99]:49876 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726564AbgHLVCc (ORCPT ); Wed, 12 Aug 2020 17:02:32 -0400 Received: from localhost.localdomain (c-71-198-47-131.hsd1.ca.comcast.net [71.198.47.131]) (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 8B007207F7; Wed, 12 Aug 2020 21:02:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597266151; bh=bK9ILJCA9ihlOw7KW7T9/1gOzx4vw79gt3MHhi7dq7U=; h=Date:From:To:Subject:From; b=KdMaURYQZVnkozmJIzu0TJ3O0EPq+3EnoytQSrVUpx+qjqBUpF8JCLRxXmuP0f6k0 Z5z+F357zXahBnFeQpmvX7OSBZR1ZyKsMqk3BMl9Cn09J+lOQD5DVPefzdlX+Fea7W GG4B9xrS/ZfpCUOQxO8X8Yo0BkkKX/IihP93TI5s= Date: Wed, 12 Aug 2020 14:02:31 -0700 From: akpm@linux-foundation.org To: charante@codeaurora.org, david@redhat.com, mhocko@suse.com, mm-commits@vger.kernel.org, vbabka@suse.cz, vinmenon@codeaurora.org Subject: [merged] mm-memory_hotplug-update-pcp-lists-everytime-onlining-a-memory-block.patch removed from -mm tree Message-ID: <20200812210231.EPHr97AH0%akpm@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 The patch titled Subject: mm, memory_hotplug: update pcp lists everytime onlining a memory block has been removed from the -mm tree. Its filename was mm-memory_hotplug-update-pcp-lists-everytime-onlining-a-memory-block.patch This patch was dropped because it was merged into mainline or a subsystem tree ------------------------------------------------------ From: Charan Teja Reddy Subject: mm, memory_hotplug: update pcp lists everytime onlining a memory block When onlining a first memory block in a zone, pcp lists are not updated thus pcp struct will have the default setting of ->high = 0,->batch = 1. This means till the second memory block in a zone(if it have) is onlined the pcp lists of this zone will not contain any pages because pcp's ->count is always greater than ->high thus free_pcppages_bulk() is called to free batch size(=1) pages every time system wants to add a page to the pcp list through free_unref_page(). To put this in a word, system is not using benefits offered by the pcp lists when there is a single onlineable memory block in a zone. Correct this by always updating the pcp lists when memory block is onlined. Link: http://lkml.kernel.org/r/1596372896-15336-1-git-send-email-charante@codeaurora.org Fixes: 1f522509c77a ("mem-hotplug: avoid multiple zones sharing same boot strapping boot_pageset") Signed-off-by: Charan Teja Reddy Reviewed-by: David Hildenbrand Acked-by: Vlastimil Babka Acked-by: Michal Hocko Cc: Vinayak Menon Signed-off-by: Andrew Morton --- mm/memory_hotplug.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/mm/memory_hotplug.c~mm-memory_hotplug-update-pcp-lists-everytime-onlining-a-memory-block +++ a/mm/memory_hotplug.c @@ -854,8 +854,7 @@ int __ref online_pages(unsigned long pfn node_states_set_node(nid, &arg); if (need_zonelists_rebuild) build_all_zonelists(NULL); - else - zone_pcp_update(zone); + zone_pcp_update(zone); init_per_zone_wmark_min(); _ Patches currently in -mm which might be from charante@codeaurora.org are