From patchwork Sat Apr 9 09:33:59 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miaohe Lin X-Patchwork-Id: 12807799 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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id F3E63C433EF for ; Sat, 9 Apr 2022 09:33:51 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 547346B0071; Sat, 9 Apr 2022 05:33:51 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 4F6BD6B0073; Sat, 9 Apr 2022 05:33:51 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 3E6C76B0074; Sat, 9 Apr 2022 05:33:51 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (relay.hostedemail.com [64.99.140.28]) by kanga.kvack.org (Postfix) with ESMTP id 30F1C6B0071 for ; Sat, 9 Apr 2022 05:33:51 -0400 (EDT) Received: from smtpin13.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay09.hostedemail.com (Postfix) with ESMTP id E8A07217B3 for ; Sat, 9 Apr 2022 09:33:50 +0000 (UTC) X-FDA: 79336828620.13.D6164C9 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by imf10.hostedemail.com (Postfix) with ESMTP id 08201C0002 for ; Sat, 9 Apr 2022 09:33:48 +0000 (UTC) Received: from canpemm500002.china.huawei.com (unknown [172.30.72.55]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4Kb9076nZxzdZbr; Sat, 9 Apr 2022 17:33:11 +0800 (CST) Received: from huawei.com (10.175.124.27) by canpemm500002.china.huawei.com (7.192.104.244) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Sat, 9 Apr 2022 17:33:42 +0800 From: Miaohe Lin To: CC: , , , , , , Subject: [PATCH v2 0/9] A few cleanup and fixup patches for vmscan Date: Sat, 9 Apr 2022 17:33:59 +0800 Message-ID: <20220409093408.5338-1-linmiaohe@huawei.com> X-Mailer: git-send-email 2.23.0 MIME-Version: 1.0 X-Originating-IP: [10.175.124.27] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To canpemm500002.china.huawei.com (7.192.104.244) X-CFilter-Loop: Reflected X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 08201C0002 X-Rspam-User: Authentication-Results: imf10.hostedemail.com; dkim=none; dmarc=pass (policy=quarantine) header.from=huawei.com; spf=pass (imf10.hostedemail.com: domain of linmiaohe@huawei.com designates 45.249.212.187 as permitted sender) smtp.mailfrom=linmiaohe@huawei.com X-Stat-Signature: 5pamiyea4kk4xyuhsyyubgy43shzhj76 X-HE-Tag: 1649496828-885723 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Hi everyone, This series contains a few patches to remove obsolete comment, introduce helper to remove duplicated code and so no. Also we take all base pages of THP into account in rare race condition. More details can be found in the respective changelogs. Thanks! --- v2: patch 1/9: drop code change and add a comment about MADV_FREE patch 2/9: simplify the code further and change to goto keep_locked patch 3/9: use folio, remove unneeded inline and break craze long lines patch 5/9: activate swap-backed executable folios after first usage too patch 9/9: new cleanup patch splitted from 5/9 Many thanks Huang Ying, Matthew Wilcox, Christoph Hellwig, Muchun Song for review! --- Miaohe Lin (9): mm/vmscan: add a comment about MADV_FREE pages check in folio_check_dirty_writeback mm/vmscan: remove unneeded can_split_huge_page check mm/vmscan: introduce helper function reclaim_page_list() mm/vmscan: save a bit of stack space in shrink_lruvec mm/vmscan: activate swap-backed executable folios after first usage mm/vmscan: take all base pages of THP into account when race with speculative reference mm/vmscan: take min_slab_pages into account when try to call shrink_node mm/vmscan: remove obsolete comment in kswapd_run mm/vmscan: use helper folio_is_file_lru() mm/vmscan.c | 92 ++++++++++++++++++++++++++--------------------------- 1 file changed, 45 insertions(+), 47 deletions(-)