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 1D53731B107; Mon, 18 Aug 2025 13:42:13 +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=1755524533; cv=none; b=gQ9mBHByqWfoxc1+LHh+ygLqB3XQCwdGTS3WCyr83A2xEnbfVdD4YvexD6GU+5FV4VfmlbRM2Fncf8KWvV5udMi5FTx7ypmzitP1jH2ETHqAlkkcrXpxWI95CK/IX8sGb8gxj0ealRDzdc9Hrb9O14JpkC43z0CwGvL2ol+2E9c= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755524533; c=relaxed/simple; bh=H45UHm66+GLOPwfnMjjVtkBgOr6S1D9jSBIrarlFEwQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ENuLjd8zH5RP50LxtKxO4S4Bz5pi9DXT/BXZorCG8SBjuvbgJeBNbdqJMVE6VEObFOkZnVYhNDh0aq5XDtvSThJoeMbzwqpqS9b08ldKhcEgjBdCk5NfKt0HcfccoSLMEPVbcxaoGclApda9hTLD6h2yxKj6D7JmviPWXVqFDPs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=aqpRlaVG; 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="aqpRlaVG" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8198DC113D0; Mon, 18 Aug 2025 13:42:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1755524533; bh=H45UHm66+GLOPwfnMjjVtkBgOr6S1D9jSBIrarlFEwQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=aqpRlaVGLx5O1vxhN1nb+RtcLDKKgkXUX7uAdRwN/vL0gEIlWYBUuGG3tbrfvuC4k NxJPjDhhnf4MpECwEYIvkZmDjnDiAGNB8CZ25/ZKe8Hp1llOz3CKSDovRtROuvgIEL hfpB/wiAl0T5mSQNP+b147GROThbym7fi28dl0+I= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Filipe Manana , Qu Wenruo , David Sterba Subject: [PATCH 6.15 470/515] btrfs: populate otime when logging an inode item Date: Mon, 18 Aug 2025 14:47:36 +0200 Message-ID: <20250818124516.515271266@linuxfoundation.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250818124458.334548733@linuxfoundation.org> References: <20250818124458.334548733@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Qu Wenruo commit 1ef94169db0958d6de39f9ea6e063ce887342e2d upstream. [TEST FAILURE WITH EXPERIMENTAL FEATURES] When running test case generic/508, the test case will fail with the new btrfs shutdown support: generic/508 - output mismatch (see /home/adam/xfstests/results//generic/508.out.bad) # --- tests/generic/508.out 2022-05-11 11:25:30.806666664 +0930 # +++ /home/adam/xfstests/results//generic/508.out.bad 2025-07-02 14:53:22.401824212 +0930 # @@ -1,2 +1,6 @@ # QA output created by 508 # Silence is golden # +Before: # +After : stat.btime = Thu Jan 1 09:30:00 1970 # +Before: # +After : stat.btime = Wed Jul 2 14:53:22 2025 # ... # (Run 'diff -u /home/adam/xfstests/tests/generic/508.out /home/adam/xfstests/results//generic/508.out.bad' to see the entire diff) Ran: generic/508 Failures: generic/508 Failed 1 of 1 tests Please note that the test case requires shutdown support, thus the test case will be skipped using the current upstream kernel, as it doesn't have shutdown ioctl support. [CAUSE] The direct cause the 0 time stamp in the log tree: leaf 30507008 items 2 free space 16057 generation 9 owner TREE_LOG leaf 30507008 flags 0x1(WRITTEN) backref revision 1 checksum stored e522548d checksum calced e522548d fs uuid 57d45451-481e-43e4-aa93-289ad707a3a0 chunk uuid d52bd3fd-5163-4337-98a7-7986993ad398 item 0 key (257 INODE_ITEM 0) itemoff 16123 itemsize 160 generation 9 transid 9 size 0 nbytes 0 block group 0 mode 100644 links 1 uid 0 gid 0 rdev 0 sequence 1 flags 0x0(none) atime 1751432947.492000000 (2025-07-02 14:39:07) ctime 1751432947.492000000 (2025-07-02 14:39:07) mtime 1751432947.492000000 (2025-07-02 14:39:07) otime 0.0 (1970-01-01 09:30:00) <<< But the old fs tree has all the correct time stamp: btrfs-progs v6.12 fs tree key (FS_TREE ROOT_ITEM 0) leaf 30425088 items 2 free space 16061 generation 5 owner FS_TREE leaf 30425088 flags 0x1(WRITTEN) backref revision 1 checksum stored 48f6c57e checksum calced 48f6c57e fs uuid 57d45451-481e-43e4-aa93-289ad707a3a0 chunk uuid d52bd3fd-5163-4337-98a7-7986993ad398 item 0 key (256 INODE_ITEM 0) itemoff 16123 itemsize 160 generation 3 transid 0 size 0 nbytes 16384 block group 0 mode 40755 links 1 uid 0 gid 0 rdev 0 sequence 0 flags 0x0(none) atime 1751432947.0 (2025-07-02 14:39:07) ctime 1751432947.0 (2025-07-02 14:39:07) mtime 1751432947.0 (2025-07-02 14:39:07) otime 1751432947.0 (2025-07-02 14:39:07) <<< The root cause is that fill_inode_item() in tree-log.c is only populating a/c/m time, not the otime (or btime in statx output). Part of the reason is that, the vfs inode only has a/c/m time, no native btime support yet. [FIX] Thankfully btrfs has its otime stored in btrfs_inode::i_otime_sec and btrfs_inode::i_otime_nsec. So what we really need is just fill the otime time stamp in fill_inode_item() of tree-log.c There is another fill_inode_item() in inode.c, which is doing the proper otime population. Fixes: 94edf4ae43a5 ("Btrfs: don't bother committing delayed inode updates when fsyncing") CC: stable@vger.kernel.org Reviewed-by: Filipe Manana Signed-off-by: Qu Wenruo Reviewed-by: David Sterba Signed-off-by: David Sterba Signed-off-by: Greg Kroah-Hartman --- fs/btrfs/tree-log.c | 3 +++ 1 file changed, 3 insertions(+) --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -4218,6 +4218,9 @@ static void fill_inode_item(struct btrfs btrfs_set_token_timespec_nsec(&token, &item->ctime, inode_get_ctime_nsec(inode)); + btrfs_set_timespec_sec(leaf, &item->otime, BTRFS_I(inode)->i_otime_sec); + btrfs_set_timespec_nsec(leaf, &item->otime, BTRFS_I(inode)->i_otime_nsec); + /* * We do not need to set the nbytes field, in fact during a fast fsync * its value may not even be correct, since a fast fsync does not wait