From patchwork Sat Sep 14 17:07:22 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Layton X-Patchwork-Id: 13804497 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 45BF61D131E; Sat, 14 Sep 2024 17:07:47 +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=1726333667; cv=none; b=tgjVp4RgcWClfUVilXexWJhILVho0gWV1jtH9QatQPs1K6nM2OQFM7WdQ+ita41TCQz4NWoYI/gEgxfOIa69TksM3MzsXk1K0jYRzBLXNqmBEKzGmAs34foWNObpFelLd0fkAce/4zNmHMAz6Prq+i+2P+0xv7z4nolRNrE60HM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726333667; c=relaxed/simple; bh=Fd5IxgHtKcN7b8Mow1VZm20amle3gCRV/bljD+jCFMs=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=dHgNpq0FbkaBQ2aaQT/mrWnsWQ8O0vsovzoks2YkSov0lEzAOT/7WbIh6jZlrpbARX1LItWCaN5EH2FjB1lesF0Hj3R6cAj7Ns5Sm6opvTDcOwNlx/sb964xuIdksMI9oAHTv0Aq3URjDGijpVOIXtdRf1Prgn7eLL/2tb64z/s= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=lG7KWITq; 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="lG7KWITq" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 91458C4CECE; Sat, 14 Sep 2024 17:07:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1726333667; bh=Fd5IxgHtKcN7b8Mow1VZm20amle3gCRV/bljD+jCFMs=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=lG7KWITqZ0JTULqD7K9VNOzVeIcKW5pDUATUsN0srkR/FaTU34rCalh4fQLd0NiDz ayuWAUjH/b0F6+2dSPyidYV2vGekaNEFlst+DGGLDZJp9KDjfwEp7fFvmRbLLGpgXQ VKp25sywWngfmZlWl3znmMEZJ2xwbKrYa3+nQL+VkAIDTbthpmqHHGPh0xozWOzWA3 tdQLKrY/X3SFm2oYyzfnF6oETy80+BgJ1JlbjHE2pKOJGAY5EBgFE2vN7/MpyNIKib DxwIgODNV99Racaj1tVRZSo5DgF94J49k5zNoIAj9ZI+9aj+TWw8u/SluzXG2HZjNI dCovHd/yHMRbA== From: Jeff Layton Date: Sat, 14 Sep 2024 13:07:22 -0400 Subject: [PATCH v8 09/11] ext4: switch to multigrain timestamps Precedence: bulk X-Mailing-List: linux-btrfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240914-mgtime-v8-9-5bd872330bed@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=926; i=jlayton@kernel.org; h=from:subject:message-id; bh=Fd5IxgHtKcN7b8Mow1VZm20amle3gCRV/bljD+jCFMs=; b=owEBbQKS/ZANAwAIAQAOaEEZVoIVAcsmYgBm5cLGaLrdQdloS9SHdXwjs/lx9Z+m43owb/WYh Ced8DtcfP2JAjMEAAEIAB0WIQRLwNeyRHGyoYTq9dMADmhBGVaCFQUCZuXCxgAKCRAADmhBGVaC Fdf/D/43c/84XJBxc2MJzrsOgo8VKaf8OhXukqOqa4RnPa4E5mj1ttGDtErs8lIQmzt45brcimw cxGf4byRL5N91O6Cv5PFmSlZiKV/MGMucjoc+YCRT6PPP+L14YxaP0mnxjK7DSxNPiEXtPytkk/ pMnbw41G5nHWCvJXaZnH2iV628zZgovKt9rGi05T+YvxjfYZhRRxZBc2r5q5OHsFYRlvlCFWnYh Uiy4soYIg6KZNopRh28NC75kVeKzbJm9OjYuSO8Eklbhbn1ew6n1TEudO25zyMSL1gimXSzU28o WXRf+DYyfpaWR1ZSCFRhYUvhslFN+gJ23qo7BwI3R1HmQmObfhuRUFPQGRRGq3YWfZkWTRoL+h8 ktSVEFwBZZ8jJw3ZyF18d2WM5rUZXtQTYj6ZjBfLq0viDaj+whmVXP5WKcyjqHNc8+9tf3IjRNM QICRarciWhavol197vxmJ9xwMm/whTgX6Zn90+/2JwlxsNNey+3aFRKKTJLC4rVZcwNnfPaOTbD 8D9w21RW913ovXTTJz61yn+MWHnrTlcjJ1Q3nWPY/XbvNQyXJoT5xrMBZ6ew2mhamHbgTC+jZvi +ZzebH+GhoqU0MBAOmPVX6nNE3BiL1nAq1UPunG3Vivc/vxhkn/LxCuFW/8esGLfkACeXqVNf7X aVUfw8gUCfn5HNw== 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 Reviewed-by: Jan Kara Signed-off-by: Jeff Layton --- 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 e72145c4ae5a..a125d9435b8a 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -7298,7 +7298,7 @@ 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");