From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 091E235580C for ; Tue, 17 Feb 2026 12:51:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771332693; cv=none; b=MxAMsNSK8E1roNW15Sb7XUpsb1w/Ap5mqfsZhOdA8f1+0sTrMdLUkh2mSOLEGu86+Cx227a24UKExdE/oBaYBNmiYLJ8RBjLwP0kq8z6+4LfH+IY1prj+xdvvNKy+npyPjMTTDs2kw41HSQRa073SccVLj9i4GJw6ZPOePfqYcA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771332693; c=relaxed/simple; bh=/bX7fb3Cr0DFwxvGQ4mvt7zNB8L7tKV8y5krlxH5h1s=; h=Subject:To:Cc:From:Date:Message-ID:MIME-Version:Content-Type; b=ry+hbDkXMBzuN2ozw0SVMu5y0u+u0ez2mpV53A2aflp0Wue/fbEr7Hz1VJghsUFro59DfeiNX/VUHXUsUnjsy1xzNOrCgFQJ1/oIbY0y9ov9wzamDBNYfvAqb6i6yqMKZD84Q/ApblBGVI1dyqqWkiymORJtqYX/E2f4XhdLGfU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=ZcPEgEeo; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="ZcPEgEeo" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 64C10C19423; Tue, 17 Feb 2026 12:51:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1771332692; bh=/bX7fb3Cr0DFwxvGQ4mvt7zNB8L7tKV8y5krlxH5h1s=; h=Subject:To:Cc:From:Date:From; b=ZcPEgEeoo2EzXOcJ4Sepvz5DfQYLvO1dU2QEajgoxqep84VlCvKY0VFIegkbuCF0n 5CWfZ5yWC/0GDy1vvI3p0Hfrpj220oJZ5y994CH1Tvr7E6tUCz324RGKKv9dj9Jc3A JuD5pLeNPux7AM2dsjQK2z+8+Z4ArwAiY8fDWjys= Subject: FAILED: patch "[PATCH] f2fs: fix IS_CHECKPOINTED flag inconsistency issue caused by" failed to apply to 6.12-stable tree To: yangyongpeng@xiaomi.com,chao@kernel.org,jaegeuk@kernel.org,liujinbao1@xiaomi.com,shengyong1@xiaomi.com Cc: From: Date: Tue, 17 Feb 2026 13:51:29 +0100 Message-ID: <2026021729-asparagus-duration-50da@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit The patch below does not apply to the 6.12-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.12.y git checkout FETCH_HEAD git cherry-pick -x 7633a7387eb4d0259d6bea945e1d3469cd135bbc # git commit -s git send-email --to '' --in-reply-to '2026021729-asparagus-duration-50da@gregkh' --subject-prefix 'PATCH 6.12.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 7633a7387eb4d0259d6bea945e1d3469cd135bbc Mon Sep 17 00:00:00 2001 From: Yongpeng Yang Date: Tue, 6 Jan 2026 20:12:11 +0800 Subject: [PATCH] f2fs: fix IS_CHECKPOINTED flag inconsistency issue caused by concurrent atomic commit and checkpoint writes During SPO tests, when mounting F2FS, an -EINVAL error was returned from f2fs_recover_inode_page. The issue occurred under the following scenario Thread A Thread B f2fs_ioc_commit_atomic_write - f2fs_do_sync_file // atomic = true - f2fs_fsync_node_pages : last_folio = inode folio : schedule before folio_lock(last_folio) f2fs_write_checkpoint - block_operations// writeback last_folio - schedule before f2fs_flush_nat_entries : set_fsync_mark(last_folio, 1) : set_dentry_mark(last_folio, 1) : folio_mark_dirty(last_folio) - __write_node_folio(last_folio) : f2fs_down_read(&sbi->node_write)//block - f2fs_flush_nat_entries : {struct nat_entry}->flag |= BIT(IS_CHECKPOINTED) - unblock_operations : f2fs_up_write(&sbi->node_write) f2fs_write_checkpoint//return : f2fs_do_write_node_page() f2fs_ioc_commit_atomic_write//return SPO Thread A calls f2fs_need_dentry_mark(sbi, ino), and the last_folio has already been written once. However, the {struct nat_entry}->flag did not have the IS_CHECKPOINTED set, causing set_dentry_mark(last_folio, 1) and write last_folio again after Thread B finishes f2fs_write_checkpoint. After SPO and reboot, it was detected that {struct node_info}->blk_addr was not NULL_ADDR because Thread B successfully write the checkpoint. This issue only occurs in atomic write scenarios. For regular file fsync operations, the folio must be dirty. If block_operations->f2fs_sync_node_pages successfully submit the folio write, this path will not be executed. Otherwise, the f2fs_write_checkpoint will need to wait for the folio write submission to complete, as sbi->nr_pages[F2FS_DIRTY_NODES] > 0. Therefore, the situation where f2fs_need_dentry_mark checks that the {struct nat_entry}->flag /wo the IS_CHECKPOINTED flag, but the folio write has already been submitted, will not occur. Therefore, for atomic file fsync, sbi->node_write should be acquired through __write_node_folio to ensure that the IS_CHECKPOINTED flag correctly indicates that the checkpoint write has been completed. Fixes: 608514deba38 ("f2fs: set fsync mark only for the last dnode") Cc: stable@kernel.org Signed-off-by: Sheng Yong Signed-off-by: Jinbao Liu Signed-off-by: Yongpeng Yang Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index d378549010e6..99e425e8c00a 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -1786,8 +1786,13 @@ static bool __write_node_folio(struct folio *folio, bool atomic, bool *submitted goto redirty_out; } - if (atomic && !test_opt(sbi, NOBARRIER)) - fio.op_flags |= REQ_PREFLUSH | REQ_FUA; + if (atomic) { + if (!test_opt(sbi, NOBARRIER)) + fio.op_flags |= REQ_PREFLUSH | REQ_FUA; + if (IS_INODE(folio)) + set_dentry_mark(folio, + f2fs_need_dentry_mark(sbi, ino_of_node(folio))); + } /* should add to global list before clearing PAGECACHE status */ if (f2fs_in_warm_node_list(sbi, folio)) { @@ -1928,8 +1933,9 @@ int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode, if (is_inode_flag_set(inode, FI_DIRTY_INODE)) f2fs_update_inode(inode, folio); - set_dentry_mark(folio, - f2fs_need_dentry_mark(sbi, ino)); + if (!atomic) + set_dentry_mark(folio, + f2fs_need_dentry_mark(sbi, ino)); } /* may be written by other thread */ if (!folio_test_dirty(folio))