From nobody Fri Nov 29 23:53:44 2024 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 C91731D1317; Sat, 14 Sep 2024 17:07:44 +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=1726333664; cv=none; b=A9DZNQz7ESYinLOULW4tUHdMpTFJXq7ndUwHGmCzCHbEPOKW48SbTgxPXt1aGV4GUuc99pXOwoGEn/u8C1Etotd9tKteMYT4fEPcR9jO/i3AHebHndx0/5/aAc5RPy1kJbgdUx4NRmCwWeVEJaEEnVj8uqXr4hKOpnXDZ+p6nZQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726333664; c=relaxed/simple; bh=bIaGrKHNkJGKwsIp2/9hx+nM5n7ktsZpZECPjECvfD4=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=sp03rjI22y7EttMQJwD/R3yaCMyogdpWCWu/Rl70oZzDx1mJii+WFzWRm90KXY2PJPGxFCBmm5LmbYwJOLI7glopqIMBgQGQG/JAZXp8mmWWOiOyHMDCvezNuGiLkoe/DG84ZNN7lRp9moblEdLYTtgnVcKzYDZiy9xSJ0JAy7E= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=WWxcOHhP; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="WWxcOHhP" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BD957C4CECF; Sat, 14 Sep 2024 17:07:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1726333664; bh=bIaGrKHNkJGKwsIp2/9hx+nM5n7ktsZpZECPjECvfD4=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=WWxcOHhPNBbvQOZoVEbWbSYGiCVIBwokWxYhCZncCHYiJQcTFpwERaEcR4Wh0Xbn2 3xgKHnCdve6t5zipyFCFIIBbKMWVFc9FsCdvQlwXt0VN1K59PGcfWb0gtf66zVh9ku 4gWzO/Exl3YH/sNl8Z55iJKZqKHzfWBD/8d75G3/rPfif7e0K/HOcWPYvxm/rvB6z7 ynGJN/c23nHNOBswZWBCa0GrR4QQylZNz9jykfRjCvUNB3lAR92/VFZcvrBWVHvkFG cgl7qUvXIQhMBLNMBiIOTqlN2+HOEptvI6n7QQwrcqDYZie6g2r0gfXk8R9Qa2FNtn LNjg2zn+ZKxEQ== From: Jeff Layton Date: Sat, 14 Sep 2024 13:07:21 -0400 Subject: [PATCH v8 08/11] xfs: switch to multigrain timestamps Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240914-mgtime-v8-8-5bd872330bed@kernel.org> References: <20240914-mgtime-v8-0-5bd872330bed@kernel.org> In-Reply-To: <20240914-mgtime-v8-0-5bd872330bed@kernel.org> To: John Stultz , Thomas Gleixner , Stephen Boyd , Alexander Viro , Christian Brauner , Jan Kara , Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , Jonathan Corbet , Chandan Babu R , "Darrick J. Wong" , Theodore Ts'o , Andreas Dilger , Chris Mason , Josef Bacik , David Sterba , Hugh Dickins , Andrew Morton , Chuck Lever , Vadim Fedorenko Cc: Randy Dunlap , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-xfs@vger.kernel.org, linux-ext4@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-nfs@vger.kernel.org, linux-mm@kvack.org, Jeff Layton X-Mailer: b4 0.14.1 X-Developer-Signature: v=1; a=openpgp-sha256; l=2942; i=jlayton@kernel.org; h=from:subject:message-id; bh=bIaGrKHNkJGKwsIp2/9hx+nM5n7ktsZpZECPjECvfD4=; b=owEBbQKS/ZANAwAIAQAOaEEZVoIVAcsmYgBm5cLGuWV9a+ING+mQgmsUefPyvxOtCZHhgbDyr h3WPzWE+SWJAjMEAAEIAB0WIQRLwNeyRHGyoYTq9dMADmhBGVaCFQUCZuXCxgAKCRAADmhBGVaC Ff0ID/9dUQxrrNbqHpnaVnHsEUNWAcwDvm/Uzqz8JRH/iN4YRdGjThpIu7yEpdW72rihVUgzhdp MDDhOlQO5YqQqkgHr2CFKMZk6mr8pRtn85S+8NTVanoaK5CcKu+J3cM9B8uAhojNlwwLA08TIEg GarAOa/asTvsuyly/mkIWdl+B86IGn5U069ELYgegsSia8FaUxhSDP2aMn0ZXoP7yKsKU3iEGnY OKDmWJaL4kfYP5m+nQQcjCvXkSJY9Ek9EIZIErc5POHxebkpCVmS2EYzTeC7jcJsCpY0mK4euhj 05JoZnB5tDPT+Ct7GxZMu+oFKFfHk9kOG7cpt4wbXXB0V/eTid0mZdkeFy3Q6hzrgRxg+GoIJML nS4LFtcRuOl/hBIkH+gAMvbPxqQMHWj5xvEiFoJGKo1X48NfNJwzOids5R/ru8ztisjIxOWUIQ8 loAuC5LGF8DixJKgHNRS9S7Pf5fC/zOAJwTWbHc1WsnJ8jCSraBKi6yhlJaY2ky5i0OSdZJ6KAK tWQg7IgZtrxbNJuibvrXaOj8KBKky232I5TcB9IwV28ZFZiflP8071Ut5Gt8VEuoMan75ri60n2 R+g/WaoBLU5fySDEGF02y91KTtNV09R9oXBtC6oLh2HAY++rt9IZ6JzLzFbgWZCMyyI8/yQJwzq yRfbZfa50FD1bMA== X-Developer-Key: i=jlayton@kernel.org; a=openpgp; fpr=4BC0D7B24471B2A184EAF5D3000E684119568215 Enable multigrain timestamps, which should ensure that there is an apparent change to the timestamp whenever it has been written after being actively observed via getattr. Also, anytime the mtime changes, the ctime must also change, and those are now the only two options for xfs_trans_ichgtime. Have that function unconditionally bump the ctime, and ASSERT that XFS_ICHGTIME_CHG is always set. Finally, stop setting STATX_CHANGE_COOKIE in getattr, since the ctime should give us better semantics now. Reviewed-by: Josef Bacik Reviewed-by: Darrick J. Wong Signed-off-by: Jeff Layton --- fs/xfs/libxfs/xfs_trans_inode.c | 6 +++--- fs/xfs/xfs_iops.c | 10 +++------- fs/xfs/xfs_super.c | 2 +- 3 files changed, 7 insertions(+), 11 deletions(-) diff --git a/fs/xfs/libxfs/xfs_trans_inode.c b/fs/xfs/libxfs/xfs_trans_inod= e.c index 3c40f37e82c7..c962ad64b0c1 100644 --- a/fs/xfs/libxfs/xfs_trans_inode.c +++ b/fs/xfs/libxfs/xfs_trans_inode.c @@ -62,12 +62,12 @@ xfs_trans_ichgtime( ASSERT(tp); xfs_assert_ilocked(ip, XFS_ILOCK_EXCL); =20 - tv =3D current_time(inode); + /* If the mtime changes, then ctime must also change */ + ASSERT(flags & XFS_ICHGTIME_CHG); =20 + tv =3D inode_set_ctime_current(inode); if (flags & XFS_ICHGTIME_MOD) inode_set_mtime_to_ts(inode, tv); - if (flags & XFS_ICHGTIME_CHG) - inode_set_ctime_to_ts(inode, tv); if (flags & XFS_ICHGTIME_ACCESS) inode_set_atime_to_ts(inode, tv); if (flags & XFS_ICHGTIME_CREATE) diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c index 1cdc8034f54d..a1c4a350a6db 100644 --- a/fs/xfs/xfs_iops.c +++ b/fs/xfs/xfs_iops.c @@ -597,8 +597,9 @@ xfs_vn_getattr( stat->gid =3D vfsgid_into_kgid(vfsgid); stat->ino =3D ip->i_ino; stat->atime =3D inode_get_atime(inode); - stat->mtime =3D inode_get_mtime(inode); - stat->ctime =3D inode_get_ctime(inode); + + fill_mg_cmtime(stat, request_mask, inode); + stat->blocks =3D XFS_FSB_TO_BB(mp, ip->i_nblocks + ip->i_delayed_blks); =20 if (xfs_has_v3inodes(mp)) { @@ -608,11 +609,6 @@ xfs_vn_getattr( } } =20 - if ((request_mask & STATX_CHANGE_COOKIE) && IS_I_VERSION(inode)) { - stat->change_cookie =3D inode_query_iversion(inode); - stat->result_mask |=3D STATX_CHANGE_COOKIE; - } - /* * Note: If you add another clause to set an attribute flag, please * update attributes_mask below. diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index 27e9f749c4c7..210481b03fdb 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -2052,7 +2052,7 @@ static struct file_system_type xfs_fs_type =3D { .init_fs_context =3D xfs_init_fs_context, .parameters =3D xfs_fs_parameters, .kill_sb =3D xfs_kill_sb, - .fs_flags =3D FS_REQUIRES_DEV | FS_ALLOW_IDMAP, + .fs_flags =3D FS_REQUIRES_DEV | FS_ALLOW_IDMAP | FS_MGTIME, }; MODULE_ALIAS_FS("xfs"); =20 --=20 2.46.0