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From: James Morris <jmorris@namei.org>
To: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Lennart Poettering <lennart@poettering.net>,
	Mimi Zohar <zohar@linux.ibm.com>,
	James Bottomley <James.Bottomley@hansenpartnership.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, 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>,
	David Howells <dhowells@redhat.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 v6 18/40] utimes: handle idmapped mounts
Date: Fri, 22 Jan 2021 15:15:05 +1100 (AEDT)	[thread overview]
Message-ID: <5165ca90-df52-ee82-7d17-f63639065b@namei.org> (raw)
In-Reply-To: <20210121131959.646623-19-christian.brauner@ubuntu.com>

On Thu, 21 Jan 2021, Christian Brauner wrote:

> Enable the vfs_utimes() helper to handle idmapped mounts by passing down
> the mount's user namespace. If the initial user namespace is passed
> nothing changes so non-idmapped mounts will see identical behavior as
> before.
> 
> Link: https://lore.kernel.org/r/20210112220124.837960-26-christian.brauner@ubuntu.com
> Cc: Christoph Hellwig <hch@lst.de>
> Cc: David Howells <dhowells@redhat.com>
> Cc: Al Viro <viro@zeniv.linux.org.uk>
> Cc: linux-fsdevel@vger.kernel.org
> Reviewed-by: Christoph Hellwig <hch@lst.de>
> Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>


Reviewed-by: James Morris <jamorris@linux.microsoft.com>


-- 
James Morris
<jmorris@namei.org>

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WARNING: multiple messages have this Message-ID (diff)
From: James Morris <jmorris@namei.org>
To: Christian Brauner <christian.brauner@ubuntu.com>
Cc: "Alexander Viro" <viro@zeniv.linux.org.uk>,
	"Christoph Hellwig" <hch@lst.de>,
	linux-fsdevel@vger.kernel.org,
	"John Johansen" <john.johansen@canonical.com>,
	"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>,
	"Stéphane 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
Subject: Re: [PATCH v6 18/40] utimes: handle idmapped mounts
Date: Fri, 22 Jan 2021 15:15:05 +1100 (AEDT)	[thread overview]
Message-ID: <5165ca90-df52-ee82-7d17-f63639065b@namei.org> (raw)
In-Reply-To: <20210121131959.646623-19-christian.brauner@ubuntu.com>

On Thu, 21 Jan 2021, Christian Brauner wrote:

> Enable the vfs_utimes() helper to handle idmapped mounts by passing down
> the mount's user namespace. If the initial user namespace is passed
> nothing changes so non-idmapped mounts will see identical behavior as
> before.
> 
> Link: https://lore.kernel.org/r/20210112220124.837960-26-christian.brauner@ubuntu.com
> Cc: Christoph Hellwig <hch@lst.de>
> Cc: David Howells <dhowells@redhat.com>
> Cc: Al Viro <viro@zeniv.linux.org.uk>
> Cc: linux-fsdevel@vger.kernel.org
> Reviewed-by: Christoph Hellwig <hch@lst.de>
> Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>


Reviewed-by: James Morris <jamorris@linux.microsoft.com>


-- 
James Morris
<jmorris@namei.org>


  reply	other threads:[~2021-01-22  4:16 UTC|newest]

Thread overview: 163+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-21 13:19 [PATCH v6 00/40] idmapped mounts Christian Brauner
2021-01-21 13:19 ` Christian Brauner
2021-01-21 13:19 ` [PATCH v6 01/40] mount: attach mappings to mounts Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-21 13:19 ` [PATCH v6 02/40] fs: add id translation helpers Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-03-13  0:05   ` Vivek Goyal
2021-03-13  0:05     ` Vivek Goyal
2021-03-13 14:31     ` Christian Brauner
2021-03-14 22:02       ` Vivek Goyal
2021-03-15  8:40       ` Christoph Hellwig
2021-01-21 13:19 ` [PATCH v6 03/40] fs: add file and path permissions helpers Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-22  2:55   ` James Morris
2021-01-22  2:55     ` James Morris
2021-01-21 13:19 ` [PATCH v6 04/40] capability: handle idmapped mounts Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-22  2:57   ` James Morris
2021-01-22  2:57     ` James Morris
2021-01-21 13:19 ` [PATCH v6 05/39] namei: make permission helpers idmapped mount aware Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-22  3:02   ` James Morris
2021-01-22  3:02     ` James Morris
2021-01-22 22:26   ` J. Bruce Fields
2021-01-22 22:26     ` J. Bruce Fields
2021-01-23 13:09     ` Christian Brauner
2021-01-23 13:09       ` Christian Brauner
2021-01-24 22:18       ` J. Bruce Fields
2021-01-24 22:18         ` J. Bruce Fields
2021-01-24 22:44         ` Christian Brauner
2021-01-24 22:44           ` Christian Brauner
2021-01-21 13:19 ` [PATCH v6 06/40] inode: make init and " Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-22  3:10   ` James Morris
2021-01-22  3:10     ` James Morris
2021-01-21 13:19 ` [PATCH v6 07/40] attr: handle idmapped mounts Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-21 13:19 ` [PATCH v6 08/40] acl: " Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-21 13:19 ` [PATCH v6 09/40] xattr: " Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-22  3:21   ` James Morris
2021-01-22  3:21     ` James Morris
2021-01-21 13:19 ` [PATCH v6 10/40] commoncap: " Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-22  3:27   ` James Morris
2021-01-22  3:27     ` James Morris
2021-01-21 13:19 ` [PATCH v6 11/40] stat: " Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-22  3:28   ` James Morris
2021-01-22  3:28     ` James Morris
2021-01-21 13:19 ` [PATCH v6 12/40] namei: handle idmapped mounts in may_*() helpers Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-22  3:47   ` James Morris
2021-01-22  3:47     ` James Morris
2021-01-21 13:19 ` [PATCH v6 13/40] namei: introduce struct renamedata Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-21 13:19 ` [PATCH v6 14/40] namei: prepare for idmapped mounts Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-21 13:19 ` [PATCH v6 15/40] open: handle idmapped mounts in do_truncate() Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-22 17:20   ` Christoph Hellwig
2021-01-22 17:20     ` Christoph Hellwig
2021-01-21 13:19 ` [PATCH v6 16/40] open: handle idmapped mounts Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-22  4:14   ` James Morris
2021-01-22  4:14     ` James Morris
2021-01-22 17:21   ` Christoph Hellwig
2021-01-22 17:21     ` Christoph Hellwig
2021-01-21 13:19 ` [PATCH v6 17/40] af_unix: " Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-22  4:14   ` James Morris
2021-01-22  4:14     ` James Morris
2021-01-21 13:19 ` [PATCH v6 18/40] utimes: " Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-22  4:15   ` James Morris [this message]
2021-01-22  4:15     ` James Morris
2021-01-21 13:19 ` [PATCH v6 19/40] fcntl: " Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-22  4:17   ` James Morris
2021-01-22  4:17     ` James Morris
2021-01-21 13:19 ` [PATCH v6 20/40] init: " Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-22 17:23   ` Christoph Hellwig
2021-01-22 17:23     ` Christoph Hellwig
2021-01-21 13:19 ` [PATCH v6 21/40] ioctl: " Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-22  4:33   ` James Morris
2021-01-22  4:33     ` James Morris
2021-01-21 13:19 ` [PATCH v6 22/40] would_dump: " Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-21 13:19 ` [PATCH v6 23/40] exec: " Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-22  4:35   ` James Morris
2021-01-22  4:35     ` James Morris
2021-01-25 16:39   ` Eric W. Biederman
2021-01-25 16:39     ` Eric W. Biederman
2021-01-25 16:44     ` Christian Brauner
2021-01-25 16:44       ` Christian Brauner
2021-01-25 17:03       ` Serge E. Hallyn
2021-01-25 17:03         ` Serge E. Hallyn
2021-01-25 17:06         ` Christian Brauner
2021-01-25 17:06           ` Christian Brauner
2021-01-27  5:50       ` Serge E. Hallyn
2021-01-27  5:50         ` Serge E. Hallyn
2021-01-21 13:19 ` [PATCH v6 24/40] fs: make helpers idmap mount aware Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-21 13:19 ` [PATCH v6 25/40] apparmor: handle idmapped mounts Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-21 13:19 ` [PATCH v6 26/39] ima: " Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-21 13:19 ` [PATCH v6 27/40] ecryptfs: do not mount on top of " Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-22  4:37   ` James Morris
2021-01-22  4:37     ` James Morris
2021-01-21 13:19 ` [PATCH v6 28/40] overlayfs: " Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-22  4:38   ` James Morris
2021-01-22  4:38     ` James Morris
2021-01-21 13:19 ` [PATCH v6 29/40] namespace: take lock_mount_hash() directly when changing flags Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-21 13:19 ` [PATCH v6 30/40] mount: make {lock,unlock}_mount_hash() static Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-21 13:19 ` [PATCH v6 31/40] namespace: only take read lock in do_reconfigure_mnt() Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-21 13:19 ` [PATCH v6 32/40] fs: split out functions to hold writers Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-21 13:19 ` [PATCH v6 33/40] fs: add attr_flags_to_mnt_flags helper Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-21 13:19 ` [PATCH v6 34/40] fs: add mount_setattr() Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-21 13:19 ` [PATCH v6 35/40] fs: introduce MOUNT_ATTR_IDMAP Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-22 17:33   ` Christoph Hellwig
2021-01-22 17:33     ` Christoph Hellwig
2021-01-22 17:34     ` Christoph Hellwig
2021-01-22 17:34       ` Christoph Hellwig
2021-01-21 13:19 ` [PATCH v6 36/40] tests: add mount_setattr() selftests Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-21 13:19 ` [PATCH v6 37/40] fat: handle idmapped mounts Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-21 13:19 ` [PATCH v6 38/40] ext4: support " Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-21 13:19 ` [PATCH v6 39/40] xfs: " Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-03-01 20:05   ` Darrick J. Wong
2021-03-01 20:05     ` Darrick J. Wong
2021-03-01 20:46     ` Christian Brauner
2021-03-01 20:46       ` Christian Brauner
2021-03-03  7:01     ` Christoph Hellwig
2021-03-03  7:01       ` Christoph Hellwig
2021-01-21 13:19 ` [PATCH v6 40/40] generic/622: add fstests for " Christian Brauner
2021-01-21 13:19   ` Christian Brauner
2021-01-27  5:40 ` [PATCH v6 00/40] " Serge E. Hallyn
2021-01-27  5:40   ` Serge E. Hallyn
2021-03-03 13:24 ` [PATCH v6 09/40] xattr: handle " David Howells
2021-03-03 13:24   ` David Howells
2021-03-03 14:05   ` Christian Brauner
2021-03-03 14:05     ` Christian Brauner
2021-03-03 14:45   ` David Howells
2021-03-03 14:45     ` David Howells
2021-03-03 16:15     ` Christian Brauner
2021-03-03 16:15       ` Christian Brauner

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