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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8B7A8E936E1 for ; Wed, 4 Oct 2023 20:32:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233219AbjJDUcY (ORCPT ); Wed, 4 Oct 2023 16:32:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58016 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244586AbjJDUWL (ORCPT ); Wed, 4 Oct 2023 16:22:11 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8F7BE10E5 for ; Wed, 4 Oct 2023 13:21:04 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id BD54AC433C7; Wed, 4 Oct 2023 20:21:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1696450864; bh=tfh3MOU4BOaTpYQNwVrcpQ56XTemvd0TqdPRvAATW/o=; h=Date:To:From:Subject:From; b=mty3QjojH8QYgDTvi8KFtR9moMAGtUvfpC9vjlRJAehoHSny+Hma0rOL4AI7h7tgA ZFg9Q/vsx4bg6X5tYht1I1lRARTJmt7uzriapcsFMzsjcVJr29oOQ+6FoJnZVSWJwu tURSeSPRbh0nw8WaJIPdV/g9IQuECqGyZFGi9WE4= Date: Wed, 04 Oct 2023 13:21:02 -0700 To: mm-commits@vger.kernel.org, ziy@nvidia.com, ying.huang@intel.com, willy@infradead.org, mike.kravetz@oracle.com, hughd@google.com, david@redhat.com, wangkefeng.wang@huawei.com, akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-stable] mm-migrate-remove-thp-mapcount-check-in-numamigrate_isolate_page.patch removed from -mm tree Message-Id: <20231004202103.BD54AC433C7@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The quilt patch titled Subject: mm: migrate: remove THP mapcount check in numamigrate_isolate_page() has been removed from the -mm tree. Its filename was mm-migrate-remove-thp-mapcount-check-in-numamigrate_isolate_page.patch This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Kefeng Wang Subject: mm: migrate: remove THP mapcount check in numamigrate_isolate_page() Date: Wed, 13 Sep 2023 17:51:25 +0800 The check of THP mapped by multiple processes was introduced by commit 04fa5d6a6547 ("mm: migrate: check page_count of THP before migrating") and refactor by commit 340ef3902cf2 ("mm: numa: cleanup flow of transhuge page migration"), which is out of date, since migrate_misplaced_page() is now using the standard migrate_pages() for small pages and THPs, the reference count checking is in folio_migrate_mapping(), so let's remove the special check for THP. Link: https://lkml.kernel.org/r/20230913095131.2426871-3-wangkefeng.wang@huawei.com Signed-off-by: Kefeng Wang Suggested-by: Matthew Wilcox (Oracle) Reviewed-by: "Huang, Ying" Cc: David Hildenbrand Cc: Hugh Dickins Cc: Mike Kravetz Cc: Zi Yan Signed-off-by: Andrew Morton --- mm/migrate.c | 4 ---- 1 file changed, 4 deletions(-) --- a/mm/migrate.c~mm-migrate-remove-thp-mapcount-check-in-numamigrate_isolate_page +++ a/mm/migrate.c @@ -2486,10 +2486,6 @@ static int numamigrate_isolate_page(pg_d int nr_pages = thp_nr_pages(page); int order = compound_order(page); - /* Do not migrate THP mapped by multiple processes */ - if (PageTransHuge(page) && total_mapcount(page) > 1) - return 0; - /* Avoid migrating to a node that is nearly full */ if (!migrate_balanced_pgdat(pgdat, nr_pages)) { int z; _ Patches currently in -mm which might be from wangkefeng.wang@huawei.com are mm-memory-add-vm_normal_folio_pmd.patch mm-huge_memory-use-a-folio-in-do_huge_pmd_numa_page.patch mm-memory-use-a-folio-in-do_numa_page.patch mm-memory-make-numa_migrate_prep-to-take-a-folio.patch mm-mempolicy-make-mpol_misplaced-to-take-a-folio.patch sched-numa-mm-make-numa-migrate-functions-to-take-a-folio.patch