From patchwork Mon Jul 15 12:48:58 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Layton X-Patchwork-Id: 13733464 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 2CB50190696; Mon, 15 Jul 2024 12:49:31 +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=1721047771; cv=none; b=PIzSsQraK9tbVW0up8rYuMypXfJKEFcSyOsED+SxoUVJlQmLK810MFS6qvVqM9hF7pZWZ2WnDLHIAb3/p2NMGvuW+la3j7F1ktlf+qyHNH82npdUQObtW44mckRxXf6ao10HjtKZfq9mUF+TgxAnqljW/0/BIbLmgQAEqWB9foY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721047771; c=relaxed/simple; bh=o+gyYbKvXkNExYjsuAJ8m7WMS8PZUinH23WSH2Xu+Mk=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=EwGO1TUgQLfFaqbWucN2yn7cV9ER5P6qSWGKzXbY5Ex/fLy0SZ9FX33x4H1ChMLFdhmrPL8mif1AlKca7+K/g7q4HwxaMiusHKnBBnjXNulGhtxrmmfqI3u6ZZLq3DaE35Gq2m9ihnF0vC/5wNLYADJLIsy3LW4jAsIKYYAKsmo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=dRAlerJu; 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="dRAlerJu" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 63B49C4AF13; Mon, 15 Jul 2024 12:49:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1721047771; bh=o+gyYbKvXkNExYjsuAJ8m7WMS8PZUinH23WSH2Xu+Mk=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=dRAlerJuBd8JkM9VU84MlAHiMeZsxsf5H+2iDx8okusCUrns1bfvO0zdGul5dcknF sUqrcyt5LPwrDZLTCazlsNLaZIGKgXgxUvZeTbQFYc18YKukJQpwMJjvbDCMc9VHW4 mYhgD/hePs6YdNdqNN8is+NjLcevZBaupiE8wiqAPjyMH1t9ae8WG23eKmp7YhcJJn olDHXS8PqdS0eMKgH+2OqBfejhVSOdvmCX8lPd08AzjITxV+1375oAgz3ZJ/bXNq2f HU/m9MgJ7kEvT0Q6SH1MHYwtIlWi32QJxYF9Z0AzefTrXou3tHk4wznS1XrSHc4Zua 6xUwhfdAHh1Pg== From: Jeff Layton Date: Mon, 15 Jul 2024 08:48:58 -0400 Subject: [PATCH v6 7/9] ext4: switch to multigrain timestamps Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240715-mgtime-v6-7-48e5d34bd2ba@kernel.org> References: <20240715-mgtime-v6-0-48e5d34bd2ba@kernel.org> In-Reply-To: <20240715-mgtime-v6-0-48e5d34bd2ba@kernel.org> To: Alexander Viro , Christian Brauner , Jan Kara , Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , Chandan Babu R , "Darrick J. Wong" , Theodore Ts'o , Andreas Dilger , Chris Mason , Josef Bacik , David Sterba , Hugh Dickins , Andrew Morton , Jonathan Corbet Cc: Dave Chinner , Andi Kleen , Christoph Hellwig , Uros Bizjak , Kent Overstreet , Arnd Bergmann , Randy Dunlap , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-xfs@vger.kernel.org, linux-ext4@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-mm@kvack.org, linux-nfs@vger.kernel.org, linux-doc@vger.kernel.org, Jeff Layton X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=888; i=jlayton@kernel.org; h=from:subject:message-id; bh=o+gyYbKvXkNExYjsuAJ8m7WMS8PZUinH23WSH2Xu+Mk=; b=owEBbQKS/ZANAwAIAQAOaEEZVoIVAcsmYgBmlRrDVHNMl9hO9HTihB98s1BA9SAsORNuI5QNF B0qYkAQuMGJAjMEAAEIAB0WIQRLwNeyRHGyoYTq9dMADmhBGVaCFQUCZpUawwAKCRAADmhBGVaC FQo8EACcB1c4yRYITKFx6X7py1QtR4U1d1NUafTeKADoWBjerJPN9fsm6ZpaaCtQbtKA4W1iXUv kpcrsxM8gVi+PTn7Xx8/2ehSVovURyGJnPiHesoWN1DMF3wklKzBb+p+NAJH+ur+LxQjSc8zvdG MObZZHN91O7WhIcM/FOXYHusZ/q5rmKog9G83gjv1kosz19oxzdVTU38iC1pgRoMpmrlNIWV2+q J8bQZDAm1Kf1h/+ZN5TtfknFpBDJW+XyLUWL4wwGCTMQMKSM4aJ1dVnvDF3Mf6M9FwcoMUEssCN +lDwW0hFcHrX5QBhbU3dzC/4M6Czi3YMz/cWz92a/mGv1+Odh1rV5lUmtZEY9MafBvN8Z79H/BI p00YDvjO81Mr14q+LSG4V2rT91AJlEoFYDWw+lbJb6UnTHRCzX2gP4N+HlDcdHz0q67r/pBEiFY URwwNnnSmogqs1l1onFf3Ea2HRACisOBllB/MQf+OorxBz/tisk9LkGBMeFJJCUH5lND2wE8jBQ Imzp4daiSeYfk4qX/8JN2iV3tvEBiEqQ/Ucr+AKZkm9/QYLXI2zufG9ZCwHgw69vQN5BTdQsR9B YjJl9/SQQz/+pqO6h3/oEvnZvO1XYn46KHM8rb754N/szjYamIA30H3k/BQHQGuK4y04RrI38N4 PGkLTg+1A4pF3lQ== 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. For ext4, we only need to enable the FS_MGTIME flag. Reviewed-by: Josef Bacik Signed-off-by: Jeff Layton Reviewed-by: Jan Kara --- fs/ext4/super.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index eb899628e121..95d4d7c0957a 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -7294,7 +7294,7 @@ static struct file_system_type ext4_fs_type = { .init_fs_context = ext4_init_fs_context, .parameters = ext4_param_specs, .kill_sb = ext4_kill_sb, - .fs_flags = FS_REQUIRES_DEV | FS_ALLOW_IDMAP, + .fs_flags = FS_REQUIRES_DEV | FS_ALLOW_IDMAP | FS_MGTIME, }; MODULE_ALIAS_FS("ext4");