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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 02287C433EF for ; Fri, 24 Sep 2021 16:12:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D0E196124B for ; Fri, 24 Sep 2021 16:12:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347327AbhIXQOa (ORCPT ); Fri, 24 Sep 2021 12:14:30 -0400 Received: from mga11.intel.com ([192.55.52.93]:43617 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1347225AbhIXQOZ (ORCPT ); Fri, 24 Sep 2021 12:14:25 -0400 X-IronPort-AV: E=McAfee;i="6200,9189,10116"; a="220906285" X-IronPort-AV: E=Sophos;i="5.85,320,1624345200"; d="scan'208";a="220906285" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Sep 2021 09:12:52 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.85,320,1624345200"; d="scan'208";a="551865357" Received: from davehans-spike.ostc.intel.com (HELO localhost.localdomain) ([10.165.28.105]) by FMSMGA003.fm.intel.com with ESMTP; 24 Sep 2021 09:12:51 -0700 Subject: [PATCH 0/2] [v2] mm/migrate: 5.15 fixes for automatic demotion To: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, Dave Hansen , ying.huang@intel.com, mhocko@suse.com, weixugc@google.com, osalvador@suse.de, rientjes@google.com, dan.j.williams@intel.com, david@redhat.com, gthelen@google.com, yang.shi@linux.alibaba.com, akpm@linux-foundation.org From: Dave Hansen Date: Fri, 24 Sep 2021 09:12:51 -0700 Message-Id: <20210924161251.093CCD06@davehans-spike.ostc.intel.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Changes from v1: * Use memory_notify->status_change_nid to detect node online/offline events instead of building a new mechanism. -- This contains two fixes for the "automatic demotion" code which was merged into 5.15: * Fix memory hotplug performance regression by watching suppressing any real action on irrelevant hotplug events. * Ensure CPU hotplug handler is registered when memory hotplug is disabled. Cc: "Huang, Ying" Cc: Michal Hocko Cc: Wei Xu Cc: Oscar Salvador Cc: David Rientjes Cc: Dan Williams Cc: David Hildenbrand Cc: Greg Thelen Cc: Yang Shi Cc: Andrew Morton