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From: Christoph Hellwig <hch@infradead.org>
To: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Lennart Poettering <lennart@poettering.net>,
	Mimi Zohar <zohar@linux.ibm.com>,
	David Howells <dhowells@redhat.com>,
	Andreas Dilger <adilger.kernel@dilger.ca>,
	containers@lists.linux-foundation.org,
	Christoph Hellwig <hch@lst.de>, Tycho Andersen <tycho@tycho.ws>,
	Paul Moore <paul@paul-moore.com>,
	Jonathan Corbet <corbet@lwn.net>,
	smbarber@chromium.org, Christoph Hellwig <hch@infradead.org>,
	Alban Crequy <alban@kinvolk.io>,
	linux-ext4@vger.kernel.org, Mrunal Patel <mpatel@redhat.com>,
	Kees Cook <keescook@chromium.org>, Arnd Bergmann <arnd@arndb.de>,
	selinux@vger.kernel.org, Josh Triplett <josh@joshtriplett.org>,
	Seth Forshee <seth.forshee@canonical.com>,
	Aleksa Sarai <cyphar@cyphar.com>,
	Alexander Viro <viro@zeniv.linux.org.uk>,
	Andy Lutomirski <luto@kernel.org>,
	OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>,
	Geoffrey Thomas <geofft@ldpreload.com>,
	James Bottomley <James.Bottomley@hansenpartnership.com>,
	John Johansen <john.johansen@canonical.com>,
	Theodore Tso <tytso@mit.edu>,
	Dmitry Kasatkin <dmitry.kasatkin@gmail.com>,
	Stephen Smalley <stephen.smalley.work@gmail.com>,
	linux-xfs@vger.kernel.org, linux-security-module@vger.kernel.org,
	"Eric W. Biederman" <ebiederm@xmission.com>,
	linux-api@vger.kernel.org,
	Casey Schaufler <casey@schaufler-ca.com>,
	linux-fsdevel@vger.kernel.org, linux-integrity@vger.kernel.org,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Todd Kjos <tkjos@google.com>
Subject: Re: [PATCH v5 40/42] fs: introduce MOUNT_ATTR_IDMAP
Date: Tue, 19 Jan 2021 09:47:50 +0000	[thread overview]
Message-ID: <20210119094750.GQ3364550@infradead.org> (raw)
In-Reply-To: <20210112220124.837960-41-christian.brauner@ubuntu.com>

Generally looks good, but wouldn't it make sense to introduce the
userns_fd in version 0 of the mount_attr structure instead of having
two versions from the start?
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WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@infradead.org>
To: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>,
	Christoph Hellwig <hch@infradead.org>,
	linux-fsdevel@vger.kernel.org,
	John Johansen <john.johansen@canonical.com>,
	James Morris <jmorris@namei.org>,
	Mimi Zohar <zohar@linux.ibm.com>,
	Dmitry Kasatkin <dmitry.kasatkin@gmail.com>,
	Stephen Smalley <stephen.smalley.work@gmail.com>,
	Casey Schaufler <casey@schaufler-ca.com>,
	Arnd Bergmann <arnd@arndb.de>,
	Andreas Dilger <adilger.kernel@dilger.ca>,
	OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>,
	Geoffrey Thomas <geofft@ldpreload.com>,
	Mrunal Patel <mpatel@redhat.com>,
	Josh Triplett <josh@joshtriplett.org>,
	Andy Lutomirski <luto@kernel.org>, Theodore Tso <tytso@mit.edu>,
	Alban Crequy <alban@kinvolk.io>, Tycho Andersen <tycho@tycho.ws>,
	David Howells <dhowells@redhat.com>,
	James Bottomley <James.Bottomley@hansenpartnership.com>,
	Seth Forshee <seth.forshee@canonical.com>,
	St??phane Graber <stgraber@ubuntu.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Aleksa Sarai <cyphar@cyphar.com>,
	Lennart Poettering <lennart@poettering.net>,
	"Eric W. Biederman" <ebiederm@xmission.com>,
	smbarber@chromium.org, Phil Estes <estesp@gmail.com>,
	Serge Hallyn <serge@hallyn.com>,
	Kees Cook <keescook@chromium.org>, Todd Kjos <tkjos@google.com>,
	Paul Moore <paul@paul-moore.com>,
	Jonathan Corbet <corbet@lwn.net>,
	containers@lists.linux-foundation.org,
	linux-security-module@vger.kernel.org, linux-api@vger.kernel.org,
	linux-ext4@vger.kernel.org, linux-xfs@vger.kernel.org,
	linux-integrity@vger.kernel.org, selinux@vger.kernel.org,
	Christoph Hellwig <hch@lst.de>,
	Mauricio V??squez Bernal <mauricio@kinvolk.io>
Subject: Re: [PATCH v5 40/42] fs: introduce MOUNT_ATTR_IDMAP
Date: Tue, 19 Jan 2021 09:47:50 +0000	[thread overview]
Message-ID: <20210119094750.GQ3364550@infradead.org> (raw)
In-Reply-To: <20210112220124.837960-41-christian.brauner@ubuntu.com>

Generally looks good, but wouldn't it make sense to introduce the
userns_fd in version 0 of the mount_attr structure instead of having
two versions from the start?

  reply	other threads:[~2021-01-19  9:49 UTC|newest]

Thread overview: 164+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-12 22:00 [PATCH v5 00/42] idmapped mounts Christian Brauner
2021-01-12 22:00 ` Christian Brauner
2021-01-12 22:00 ` [PATCH v5 01/42] namespace: take lock_mount_hash() directly when changing flags Christian Brauner
2021-01-12 22:00   ` Christian Brauner
2021-01-12 22:00 ` [PATCH v5 02/42] mount: make {lock,unlock}_mount_hash() static Christian Brauner
2021-01-12 22:00   ` Christian Brauner
2021-01-12 22:00 ` [PATCH v5 03/42] namespace: only take read lock in do_reconfigure_mnt() Christian Brauner
2021-01-12 22:00   ` Christian Brauner
2021-01-12 22:00 ` [PATCH v5 04/42] fs: split out functions to hold writers Christian Brauner
2021-01-12 22:00   ` Christian Brauner
2021-01-12 22:00 ` [PATCH v5 05/42] fs: add attr_flags_to_mnt_flags helper Christian Brauner
2021-01-12 22:00   ` Christian Brauner
2021-01-12 22:00 ` [PATCH v5 06/42] fs: add mount_setattr() Christian Brauner
2021-01-12 22:00   ` Christian Brauner
2021-01-12 22:00 ` [PATCH v5 07/42] tests: add mount_setattr() selftests Christian Brauner
2021-01-12 22:00   ` Christian Brauner
2021-01-12 22:00 ` [PATCH v5 08/42] fs: add id translation helpers Christian Brauner
2021-01-12 22:00   ` Christian Brauner
2021-01-12 22:00 ` [PATCH v5 09/42] mount: attach mappings to mounts Christian Brauner
2021-01-12 22:00   ` Christian Brauner
2021-01-19  9:20   ` Christoph Hellwig
2021-01-19  9:20     ` Christoph Hellwig
2021-01-12 22:00 ` [PATCH v5 10/42] capability: handle idmapped mounts Christian Brauner
2021-01-12 22:00   ` Christian Brauner
2021-01-19  9:22   ` Christoph Hellwig
2021-01-19  9:22     ` Christoph Hellwig
2021-01-12 22:00 ` [PATCH v5 11/42] namei: make permission helpers idmapped mount aware Christian Brauner
2021-01-12 22:00   ` Christian Brauner
2021-01-19  9:23   ` Christoph Hellwig
2021-01-19  9:23     ` Christoph Hellwig
2021-01-12 22:00 ` [PATCH v5 12/42] inode: make init and " Christian Brauner
2021-01-12 22:00   ` Christian Brauner
2021-01-19  9:24   ` Christoph Hellwig
2021-01-19  9:24     ` Christoph Hellwig
2021-01-12 22:00 ` [PATCH v5 13/42] attr: handle idmapped mounts Christian Brauner
2021-01-12 22:00   ` Christian Brauner
2021-01-19  9:25   ` Christoph Hellwig
2021-01-19  9:25     ` Christoph Hellwig
2021-01-12 22:00 ` [PATCH v5 14/42] acl: " Christian Brauner
2021-01-12 22:00   ` Christian Brauner
2021-01-19  9:26   ` Christoph Hellwig
2021-01-19  9:26     ` Christoph Hellwig
2021-01-12 22:00 ` [PATCH v5 15/42] fs: add file_user_ns() helper Christian Brauner
2021-01-12 22:00   ` Christian Brauner
2021-01-19  9:27   ` Christoph Hellwig
2021-01-19  9:27     ` Christoph Hellwig
2021-01-19 15:05   ` Jann Horn via Containers
2021-01-19 15:05     ` Jann Horn
2021-01-20 12:03     ` Christian Brauner
2021-01-20 12:03       ` Christian Brauner
2021-01-12 22:00 ` [PATCH v5 16/42] xattr: handle idmapped mounts Christian Brauner
2021-01-12 22:00   ` Christian Brauner
2021-01-19  9:31   ` Christoph Hellwig
2021-01-19  9:31     ` Christoph Hellwig
2021-01-12 22:00 ` [PATCH v5 17/42] commoncap: " Christian Brauner
2021-01-12 22:00   ` Christian Brauner
2021-01-19  9:31   ` Christoph Hellwig
2021-01-19  9:31     ` Christoph Hellwig
2021-01-12 22:01 ` [PATCH v5 18/42] stat: " Christian Brauner
2021-01-12 22:01   ` Christian Brauner
2021-01-19  9:32   ` Christoph Hellwig
2021-01-19  9:32     ` Christoph Hellwig
2021-01-12 22:01 ` [PATCH v5 19/42] namei: handle idmapped mounts in may_*() helpers Christian Brauner
2021-01-12 22:01   ` Christian Brauner
2021-01-19  9:33   ` Christoph Hellwig
2021-01-19  9:33     ` Christoph Hellwig
2021-01-12 22:01 ` [PATCH v5 20/42] namei: introduce struct renamedata Christian Brauner
2021-01-12 22:01   ` Christian Brauner
2021-01-19  9:34   ` Christoph Hellwig
2021-01-19  9:34     ` Christoph Hellwig
2021-01-12 22:01 ` [PATCH v5 21/42] namei: prepare for idmapped mounts Christian Brauner
2021-01-12 22:01   ` Christian Brauner
2021-01-19  9:34   ` Christoph Hellwig
2021-01-19  9:34     ` Christoph Hellwig
2021-01-12 22:01 ` [PATCH v5 22/42] open: handle idmapped mounts in do_truncate() Christian Brauner
2021-01-12 22:01   ` Christian Brauner
2021-01-19  9:37   ` Christoph Hellwig
2021-01-19  9:37     ` Christoph Hellwig
2021-01-12 22:01 ` [PATCH v5 23/42] open: handle idmapped mounts Christian Brauner
2021-01-12 22:01   ` Christian Brauner
2021-01-19  9:38   ` Christoph Hellwig
2021-01-19  9:38     ` Christoph Hellwig
2021-01-19 14:57     ` Christian Brauner
2021-01-19 14:57       ` Christian Brauner
2021-01-12 22:01 ` [PATCH v5 24/42] af_unix: " Christian Brauner
2021-01-12 22:01   ` Christian Brauner
2021-01-19  9:39   ` Christoph Hellwig
2021-01-19  9:39     ` Christoph Hellwig
2021-01-12 22:01 ` [PATCH v5 25/42] utimes: " Christian Brauner
2021-01-12 22:01   ` Christian Brauner
2021-01-19  9:40   ` Christoph Hellwig
2021-01-19  9:40     ` Christoph Hellwig
2021-01-12 22:01 ` [PATCH v5 26/42] fcntl: " Christian Brauner
2021-01-12 22:01   ` Christian Brauner
2021-01-19  9:41   ` Christoph Hellwig
2021-01-19  9:41     ` Christoph Hellwig
2021-01-12 22:01 ` [PATCH v5 27/42] notify: " Christian Brauner
2021-01-12 22:01   ` Christian Brauner
2021-01-19  9:42   ` Christoph Hellwig
2021-01-19  9:42     ` Christoph Hellwig
2021-01-12 22:01 ` [PATCH v5 28/42] init: " Christian Brauner
2021-01-12 22:01   ` Christian Brauner
2021-01-12 22:01 ` [PATCH v5 29/42] ioctl: " Christian Brauner
2021-01-12 22:01   ` Christian Brauner
2021-01-19  9:44   ` Christoph Hellwig
2021-01-19  9:44     ` Christoph Hellwig
2021-01-12 22:01 ` [PATCH v5 30/42] would_dump: " Christian Brauner
2021-01-12 22:01   ` Christian Brauner
2021-01-19  9:44   ` Christoph Hellwig
2021-01-19  9:44     ` Christoph Hellwig
2021-01-12 22:01 ` [PATCH v5 31/42] exec: " Christian Brauner
2021-01-12 22:01   ` Christian Brauner
2021-01-19  9:45   ` Christoph Hellwig
2021-01-19  9:45     ` Christoph Hellwig
2021-01-12 22:01 ` [PATCH v5 32/42] fs: make helpers idmap mount aware Christian Brauner
2021-01-12 22:01   ` Christian Brauner
2021-01-19  9:45   ` Christoph Hellwig
2021-01-19  9:45     ` Christoph Hellwig
2021-01-12 22:01 ` [PATCH v5 33/42] apparmor: handle idmapped mounts Christian Brauner
2021-01-12 22:01   ` Christian Brauner
2021-01-12 22:01 ` [PATCH v5 34/42] ima: " Christian Brauner
2021-01-12 22:01   ` Christian Brauner
2021-01-12 22:01 ` [PATCH v5 35/42] fat: " Christian Brauner
2021-01-12 22:01   ` Christian Brauner
2021-01-12 22:01 ` [PATCH v5 36/42] ext4: support " Christian Brauner
2021-01-12 22:01   ` Christian Brauner
2021-01-12 22:01 ` [PATCH v5 37/42] xfs: " Christian Brauner
2021-01-12 22:01   ` Christian Brauner
2021-01-14 20:51   ` Dave Chinner
2021-01-14 20:51     ` Dave Chinner
2021-01-14 22:10     ` Christian Brauner
2021-01-14 22:10       ` Christian Brauner
2021-01-17 21:06       ` Dave Chinner
2021-01-17 21:06         ` Dave Chinner
2021-01-15 16:22     ` Christoph Hellwig
2021-01-15 16:22       ` Christoph Hellwig
2021-01-12 22:01 ` [PATCH v5 38/42] ecryptfs: do not mount on top of " Christian Brauner
2021-01-12 22:01   ` Christian Brauner
2021-01-12 22:01 ` [PATCH v5 39/42] overlayfs: " Christian Brauner
2021-01-12 22:01   ` Christian Brauner
2021-01-12 22:01 ` [PATCH v5 40/42] fs: introduce MOUNT_ATTR_IDMAP Christian Brauner
2021-01-12 22:01   ` Christian Brauner
2021-01-19  9:47   ` Christoph Hellwig [this message]
2021-01-19  9:47     ` Christoph Hellwig
2021-01-19 11:43     ` Christian Brauner
2021-01-19 11:43       ` Christian Brauner
2021-01-12 22:01 ` [PATCH v5 41/42] tests: extend mount_setattr tests Christian Brauner
2021-01-12 22:01   ` Christian Brauner
2021-01-13  0:32   ` Randy Dunlap
2021-01-13  0:32     ` Randy Dunlap
2021-01-12 22:01 ` [PATCH v5 42/42] generic/622: add fstests for idmapped mounts Christian Brauner
2021-01-12 22:01   ` Christian Brauner
2021-01-14 17:12 ` [PATCH v5 00/42] " Darrick J. Wong
2021-01-14 17:12   ` Darrick J. Wong
2021-01-14 17:54   ` Christian Brauner
2021-01-14 17:54     ` Christian Brauner
2021-01-14 20:43   ` Dave Chinner
2021-01-14 20:43     ` Dave Chinner
2021-01-15 16:24     ` Christoph Hellwig
2021-01-15 16:24       ` Christoph Hellwig
2021-01-15 17:51       ` Theodore Ts'o
2021-01-15 17:51         ` Theodore Ts'o
2021-01-16  0:27         ` Christian Brauner
2021-01-16  0:27           ` Christian Brauner

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