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 2FBD5CA5531 for ; Wed, 13 Sep 2023 09:52:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237085AbjIMJwK (ORCPT ); Wed, 13 Sep 2023 05:52:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37548 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239481AbjIMJwG (ORCPT ); Wed, 13 Sep 2023 05:52:06 -0400 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8AF17199D for ; Wed, 13 Sep 2023 02:52:00 -0700 (PDT) Received: from dggpemm100001.china.huawei.com (unknown [172.30.72.56]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4Rlwdg03lbzVkg7; Wed, 13 Sep 2023 17:49:11 +0800 (CST) Received: from localhost.localdomain (10.175.112.125) by dggpemm100001.china.huawei.com (7.185.36.93) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.31; Wed, 13 Sep 2023 17:51:58 +0800 From: Kefeng Wang To: Andrew Morton CC: , , , , , Zi Yan , Mike Kravetz , , Kefeng Wang Subject: [PATCH v3 0/8] mm: migrate: more folio conversion and unification Date: Wed, 13 Sep 2023 17:51:23 +0800 Message-ID: <20230913095131.2426871-1-wangkefeng.wang@huawei.com> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.175.112.125] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To dggpemm100001.china.huawei.com (7.185.36.93) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Convert more migrate functions to use a folio, it is also a preparation for large folio migration support when numa balance. The patch 1~2 remove unexpected specific assert for PageTransHuge page. The Patch 3~6 convert several more migration functions to use folio. 1) add_page_for_migration() used by move_pages 2) migrate_misplaced_page()/numamigrate_isolate_page() used by numa balance The patch 7 remove PageHead() check to make hugetlb to migrate the entire hugetlb page instead of -EACCES errno return when passed the address of a tail page. The patch 8 cleanup to unify and simplify code a bit in add_page_for_migration() Thanks for all comments and suggestions from Matthew, Hugh, Zi, Mike, Huang. v3: - update changelog of patch1 - use folio_estimated_sharers and comment it in migrate_misplaced_folio() - collect RB/ACK - rebased on 6.6-rc1 v2: - keep page_mapcount() check and remove specific assert for PageTransHuge page. - separate patch7 to migrate the entire hugetlb page if a tail page passed, which unified the behavior between HUGETLB and THP when move_page(). Kefeng Wang (8): mm: migrate: remove PageTransHuge check in numamigrate_isolate_page() mm: migrate: remove THP mapcount check in numamigrate_isolate_page() mm: migrate: convert numamigrate_isolate_page() to numamigrate_isolate_folio() mm: migrate: convert migrate_misplaced_page() to migrate_misplaced_folio() mm: migrate: use __folio_test_movable() mm: migrate: use a folio in add_page_for_migration() mm: migrate: remove PageHead() check for HugeTLB in add_page_for_migration() mm: migrate: remove isolated variable in add_page_for_migration() include/linux/migrate.h | 4 +- mm/huge_memory.c | 2 +- mm/memory.c | 2 +- mm/migrate.c | 126 ++++++++++++++++++---------------------- 4 files changed, 62 insertions(+), 72 deletions(-) -- 2.27.0