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 9ECA4185B58; Wed, 6 Nov 2024 19:53:09 +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=1730922789; cv=none; b=pvqdbyG4/svRb9UGb3Mz2+r7U2knIVV4qpZT3zNuE6Mg/rP9Xw+FM0+tfapRfUpwHl6w/nwFTHlCu6xZTiMNjoSWJOPJidzBQL0hSwjKSNafbPPgYgqZ6e4J/3vND3RCuERpb27i5hIT6M0qSphqlB/bA0EX8+gNjXsdQBAehSM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730922789; c=relaxed/simple; bh=aRV+zYHZNL6BsleDNQCsdcsSHq4ogvv1pZeA3ZWuVJ0=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=DQdWSrRFJk7ciLE5uuM4A/ee3zckx7Kr3XqIWLGk/ilRTkuQXWYJLMDUC7JHq+Q0Lk6FVh2mZO8TjvWqCcalLklnu+jUDwr5MkpOvLVonnvPOgoGkpzcaizY6Fh1QklpS5FfklQ9su+9DpQ91HJHHr6oH7S2Vtr3htQuLRu3wRo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=afaK5eGB; 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="afaK5eGB" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 940DBC4CECD; Wed, 6 Nov 2024 19:53:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1730922789; bh=aRV+zYHZNL6BsleDNQCsdcsSHq4ogvv1pZeA3ZWuVJ0=; h=From:Subject:Date:To:Cc:From; b=afaK5eGBVQvlGAxaxPVC/cOGQOg0KTPNFmWS8kXg43UlU4ohuwYT8eaXk37p4KnkW moyq90x02RseP4ruhIVPdiVWm53Q1I1TNnSLMLRV/Rx9inlpzcY29D8bbRmVJ0no6B Vmom9co04wRbduN2zbIIaXTcrv/NVkVwk4Ef7DHWyFrnoGJcRFfdUOz/ngOW1m7X1p sggAkB3ON0zkP9MrKpnMI5s2QFtL4jElF9z6giN+No436r64y7GfdIVuFl2cJ1dz1N UXJ7h6EJc54FUjPTGlFTnB9zLf7qaJgHh3H1lHaZt80/X8XnZKy653xZw3nizgahs6 ZMsW2fhhznrYQ== From: Jeff Layton Subject: [PATCH v2 0/2] fs: allow statmount to fetch the sb->s_subtype field Date: Wed, 06 Nov 2024 14:53:04 -0500 Message-Id: <20241106-statmount-v2-0-93ba2aad38d1@kernel.org> 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: 7bit X-B4-Tracking: v=1; b=H4sIACDJK2cC/23MQQ7CIBCF4as0sxbToVpSV97DdEFlaCcqGECia bi72LXL/+XlWyFSYIpwalYIlDmydzXkroHrot1Mgk1tkK08ILa9iEmnh3+5JDo7oFZk1NFqqP9 nIMvvzbqMtReOyYfPRmf8rf+UjALFNHSTtmZQvcTzjYKj+96HGcZSyheablnHowAAAA== X-Change-ID: 20241106-statmount-3f91a7ed75fa To: Alexander Viro , Christian Brauner , Jan Kara Cc: Josef Bacik , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, Jeff Layton X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1031; i=jlayton@kernel.org; h=from:subject:message-id; bh=aRV+zYHZNL6BsleDNQCsdcsSHq4ogvv1pZeA3ZWuVJ0=; b=owEBbQKS/ZANAwAIAQAOaEEZVoIVAcsmYgBnK8kjbquladGixdtofMN6DLiE3amZxe3VFmUEi KoRGvbxjqOJAjMEAAEIAB0WIQRLwNeyRHGyoYTq9dMADmhBGVaCFQUCZyvJIwAKCRAADmhBGVaC FcgkEACFOyOvBuWa+BVmY6sQLP3smPn9hHwZToSU0lk5D1BKThU+2NOnJFxqRFCiL6HB2gXM5dg tSG4HWSMoLdufFu16iS7iv3LmN5fBNPOPymf1y0M//GO7oJQWxBU/zH67W9WsUGKGs03aUObGn8 UzAj7jiMKIL9eQXDReiUj082uZCMFI8xc7TJH6lJJS1+32S1sZ2FwQKe7BJINMmXGnY3yRSGXz2 910y3arr7C3d8K4PgWKMb4cbxJKyZVlK2qumu8mImihJOjvPZdsP0IFgFTji0uoRENo1/oL/vrt 7mcx5topetO3c3D5Lt1rfEJUgILsDbbipfPWw+h/8Zs0Oo20o5DQvKsS1w36qpQ53RhOt9BPQCv xiFTvgJtM7X6UkJzJiam3h25UwdCV9K6wmLVGYz4cVbQnZMANEjZ1A275386EeVKj8uyQDiw5F2 OoJsgvKyOhK+hBjfrR4+rZJTuTpInAZK/h78CmpksqcRhbszkPOZOe0eJHzrz3mjZ172O5rP8Rd BF/zFVSFODlLTEH4HzM+mhBg72EPRtlw8pFXSINt//VamUKOoMWlLwPANKIV6dIh+m15TpOKq2g 9IETyRnXIJT8lwhkTqo4tYpJctXrxBnXbqnS3eGdbEan6PY6BMeDi//r1JrAYZL+B975TS/4BX4 ittTuzwTwYruIdg== X-Developer-Key: i=jlayton@kernel.org; a=openpgp; fpr=4BC0D7B24471B2A184EAF5D3000E684119568215 Meta has some internal logging that scrapes /proc/self/mountinfo today. I'd like to convert it to use listmount()/statmount(), so we can do a better job of monitoring with containers. We're missing some fields though. This patchset adds them. Signed-off-by: Jeff Layton --- Changes in v2: - make statmount_fs_subtype - return fast if no subtype is emitted - new patch to allow statmount() to return devicename - Link to v1: https://lore.kernel.org/r/20241106-statmount-v1-1-b93bafd97621@kernel.org --- Jeff Layton (2): fs: add the ability for statmount() to report the fs_subtype fs: add the ability for statmount() to report the mount devicename fs/namespace.c | 42 +++++++++++++++++++++++++++++++++++++++++- include/uapi/linux/mount.h | 6 +++++- 2 files changed, 46 insertions(+), 2 deletions(-) --- base-commit: 26213e1a6caa5a7f508b919059b0122b451f4dfe change-id: 20241106-statmount-3f91a7ed75fa Best regards, -- Jeff Layton