{"id":2190725,"url":"http://patchwork.ozlabs.org/api/1.2/covers/2190725/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-ext4/cover/20260130031232.60780-1-me@linux.beauty/","project":{"id":8,"url":"http://patchwork.ozlabs.org/api/1.2/projects/8/?format=json","name":"Linux ext4 filesystem development","link_name":"linux-ext4","list_id":"linux-ext4.vger.kernel.org","list_email":"linux-ext4@vger.kernel.org","web_url":null,"scm_url":null,"webscm_url":null,"list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20260130031232.60780-1-me@linux.beauty>","list_archive_url":null,"date":"2026-01-30T03:12:29","name":"[0/3] jbd2/ext4/ocfs2: READ_ONCE for lockless jinode reads","submitter":{"id":84264,"url":"http://patchwork.ozlabs.org/api/1.2/people/84264/?format=json","name":"Li Chen","email":"me@linux.beauty"},"mbox":"http://patchwork.ozlabs.org/project/linux-ext4/cover/20260130031232.60780-1-me@linux.beauty/mbox/","series":[{"id":490324,"url":"http://patchwork.ozlabs.org/api/1.2/series/490324/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-ext4/list/?series=490324","date":"2026-01-30T03:12:31","name":"jbd2/ext4/ocfs2: READ_ONCE for lockless jinode reads","version":1,"mbox":"http://patchwork.ozlabs.org/series/490324/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/covers/2190725/comments/","headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-ext4@vger.kernel.org"],"Delivered-To":["patchwork-incoming@legolas.ozlabs.org","patchwork-incoming@ozlabs.org"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=linux.beauty header.i=me@linux.beauty\n header.a=rsa-sha256 header.s=zmail header.b=AMzP7biO;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=ozlabs.org\n (client-ip=150.107.74.76; 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gandalf.ozlabs.org;\n dmarc=none (p=none dis=none) header.from=linux.beauty;\n dkim=pass (1024-bit key;\n unprotected) header.d=linux.beauty header.i=me@linux.beauty\n header.a=rsa-sha256 header.s=zmail header.b=AMzP7biO; dkim-atps=neutral;\n spf=pass (client-ip=2600:3c0a:e001:db::12fc:5321; helo=sea.lore.kernel.org;\n envelope-from=linux-ext4+bounces-13433-patchwork-incoming=ozlabs.org@vger.kernel.org;\n receiver=ozlabs.org) smtp.mailfrom=vger.kernel.org","i=2; smtp.subspace.kernel.org;\n dmarc=none (p=none dis=none) header.from=linux.beauty;\n spf=pass smtp.mailfrom=linux.beauty;\n dkim=pass (1024-bit key) header.d=linux.beauty header.i=me@linux.beauty\n header.b=AMzP7biO; arc=pass smtp.client-ip=136.143.188.112","i=1; mx.zohomail.com;\n\tdkim=pass header.i=linux.beauty;\n\tspf=pass smtp.mailfrom=me@linux.beauty;\n\tdmarc=pass header.from="],"DKIM-Signature":"v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1769742772;\n\ts=zmail; d=linux.beauty; i=me@linux.beauty;\n\th=From:From:To:To:Cc:Cc:Subject:Subject:Date:Date:Message-ID:MIME-Version:Content-Transfer-Encoding:Message-Id:Reply-To;\n\tbh=duG12rU890kpQKaDc+uvYR6nAiZ5TCD6IvpJCxX6LVo=;\n\tb=AMzP7biOZnCGWWTWiyNW93FjjGxrWOxbYjXcrOFDcPgeDMm8Q/p4bWXYBrA6PRxH\n\tpmP4DqbCZQ3lCHmz+qUDThWFMVn4+wWfIYL/yn3GV9PRwSuXBNADJIBP2Qajp3q+Ahq\n\tlPXjjvDfdAuHOjxpJh6Upx/zPXoE6Dg00sXVk7Ds=","From":"Li Chen ","To":"Theodore Ts'o ,\n\tJan Kara ,\n\tMark Fasheh ,\n\tlinux-ext4@vger.kernel.org,\n\tocfs2-devel@lists.linux.dev","Cc":"Andreas Dilger ,\n\tJoel Becker ,\n\tJoseph Qi ,\n\tlinux-kernel@vger.kernel.org","Subject":"[PATCH 0/3] jbd2/ext4/ocfs2: READ_ONCE for lockless jinode reads","Date":"Fri, 30 Jan 2026 11:12:29 +0800","Message-ID":"<20260130031232.60780-1-me@linux.beauty>","X-Mailer":"git-send-email 2.52.0","Precedence":"bulk","X-Mailing-List":"linux-ext4@vger.kernel.org","List-Id":"","List-Subscribe":"","List-Unsubscribe":"","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","X-ZohoMailClient":"External","X-Spam-Status":"No, score=-1.2 required=5.0 tests=ARC_SIGNED,ARC_VALID,\n\tDKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DMARC_MISSING,\n\tHEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,\n\tSPF_PASS autolearn=disabled version=4.0.1","X-Spam-Checker-Version":"SpamAssassin 4.0.1 (2024-03-25) on gandalf.ozlabs.org"},"content":"This series adds READ_ONCE() for existing lockless reads of\njbd2_inode fields in jbd2 and filesystem callbacks used by ext4 and ocfs2.\n\nThis is based on Jan's suggestion in the review of the ext4 jinode\npublication race fix. [1]\n\n[1]: https://lore.kernel.org/all/4jxwogttddiaoqbstlgou5ox6zs27ngjjz5ukrxafm2z5ijxod@so4eqnykiegj/\n\nThanks,\nLi\n\nLi Chen (3):\n jbd2: use READ_ONCE for lockless jinode reads\n ext4: use READ_ONCE for lockless jinode reads\n ocfs2: use READ_ONCE for lockless jinode reads\n\n fs/ext4/inode.c | 6 ++++--\n fs/ext4/super.c | 13 ++++++++-----\n fs/jbd2/commit.c | 39 ++++++++++++++++++++++++++++++++-------\n fs/jbd2/transaction.c | 2 +-\n fs/ocfs2/journal.c | 7 +++++--\n 5 files changed, 50 insertions(+), 17 deletions(-)"}