From patchwork Sat Jun 25 09:33:44 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miaohe Lin X-Patchwork-Id: 12895287 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 44092C43334 for ; Sat, 25 Jun 2022 09:33:51 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id C6D888E029D; Sat, 25 Jun 2022 05:33:50 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id C1C838E029A; Sat, 25 Jun 2022 05:33:50 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id AE5B48E029D; Sat, 25 Jun 2022 05:33:50 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id 9B6D68E029A for ; Sat, 25 Jun 2022 05:33:50 -0400 (EDT) Received: from smtpin01.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay07.hostedemail.com (Postfix) with ESMTP id 65BE8204ED for ; Sat, 25 Jun 2022 09:33:50 +0000 (UTC) X-FDA: 79616246220.01.35EE9C9 Received: from szxga08-in.huawei.com (szxga08-in.huawei.com [45.249.212.255]) by imf27.hostedemail.com (Postfix) with ESMTP id D259040008 for ; Sat, 25 Jun 2022 09:33:49 +0000 (UTC) Received: from canpemm500002.china.huawei.com (unknown [172.30.72.55]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4LVTJm00TJz1KCBw; Sat, 25 Jun 2022 17:31:35 +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, 25 Jun 2022 17:33:46 +0800 From: Miaohe Lin To: CC: , , , , , , Subject: [PATCH v3 0/2] A few cleanup and fixup patches for swap Date: Sat, 25 Jun 2022 17:33:44 +0800 Message-ID: <20220625093346.48894-1-linmiaohe@huawei.com> X-Mailer: git-send-email 2.23.0 MIME-Version: 1.0 X-Originating-IP: [10.175.124.27] X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To canpemm500002.china.huawei.com (7.192.104.244) X-CFilter-Loop: Reflected ARC-Authentication-Results: i=1; imf27.hostedemail.com; dkim=none; spf=pass (imf27.hostedemail.com: domain of linmiaohe@huawei.com designates 45.249.212.255 as permitted sender) smtp.mailfrom=linmiaohe@huawei.com; dmarc=pass (policy=quarantine) header.from=huawei.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1656149630; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding:in-reply-to: references; bh=YxandkV50dvyVRwo7R8Qjs5aYIubINzUwRNYbG9d11w=; b=a22/WZh6QtD+Mc9Ut50V495kqfeWjDOz+YWFkbsPwJ+8nOUTbLrbgegeUURjpOX8boPCQo nd50lzJmg0LG9F2vLjFClwjeldXe3lwXKX/ApP+EObh4QkloO1m3rAhlXWYca0lf71EEXt 7beiaRksF+l2GS14uPEVHNp0CJrbkkY= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1656149630; a=rsa-sha256; cv=none; b=sPfbBpZm2mnSK2E878iBMtIzSwbitIgBqsZHOQG1j11O4pVxjhnfA9hkjKjR+CHgcnok+B AdM5u2Y/2wSBudxWLrH4dsyMw1NokH7tHyn+L1sVM1sNJt6Ybl1sq297LIs1fDrETfrj7I eGZhKvflTpiB17qANhBZ4MfxUeBcZJQ= X-Stat-Signature: 3bbmnpz3bu1ok55krpx1e49dde9jbzog X-Rspamd-Queue-Id: D259040008 X-Rspam-User: Authentication-Results: imf27.hostedemail.com; dkim=none; spf=pass (imf27.hostedemail.com: domain of linmiaohe@huawei.com designates 45.249.212.255 as permitted sender) smtp.mailfrom=linmiaohe@huawei.com; dmarc=pass (policy=quarantine) header.from=huawei.com X-Rspamd-Server: rspam02 X-HE-Tag: 1656149629-640405 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 cleaup patch to remove unneeded swap_cache_info statistics, and a bugfix patch to avoid data races of inuse_pages. More details can be found in the respective changelogs. Thanks! --- v3: rebase on linux-next-20220624 drop patch 1/3 per Huang, Ying collect Reviewed-by tag per David, Muchun, Acked-by tag per Huang, Ying use WRITE_ONCE to pair with READ_ONCE in patch 2/3 v2: collect Reviewed-by tag per David drop patch "mm/swapfile: avoid confusing swap cache statistics" add a new patch to remove swap_cache_info statistics per David Many thanks David for review and comment. --- Miaohe Lin (2): mm/swapfile: fix possible data races of inuse_pages mm/swap: remove swap_cache_info statistics mm/swap_state.c | 17 ----------------- mm/swapfile.c | 8 ++++---- 2 files changed, 4 insertions(+), 21 deletions(-)