From: Alan Cox <gnomes@lxorguk.ukuu.org.uk>
To: Andy Lutomirski <luto@kernel.org>
Cc: "Theodore Y. Ts'o" <tytso@mit.edu>,
David Howells <dhowells@redhat.com>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Al Viro <viro@zeniv.linux.org.uk>,
John Johansen <john.johansen@canonical.com>,
Tejun Heo <tj@kernel.org>, SELinux-NSA <selinux@tycho.nsa.gov>,
Paul Moore <paul@paul-moore.com>, Li Zefan <lizefan@huawei.com>,
Linux API <linux-api@vger.kernel.org>,
apparmor@lists.ubuntu.com,
Casey Schaufler <casey@schaufler-ca.com>,
Fenghua Yu <fenghua.yu@intel.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Eric Biggers <ebiggers@google.com>,
LSM List <linux-security-module@vger.kernel.org>,
Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>,
Johannes Weiner <hannes@cmpxchg.org>,
Stephen Smalley <sds@tycho.nsa.gov>,
tomoyo-dev-en@lists.s
Subject: Re: BUG: Mount ignores mount options
Date: Mon, 13 Aug 2018 17:35:02 +0100 [thread overview]
Message-ID: <20180813173502.1a7a1d9c@alans-desktop> (raw)
In-Reply-To: <CALCETrXC8Z-q+PzzqMC-McA7UdmFubVcs2dVsT0Dt+GbSqjF5A@mail.gmail.com>
> If the same block device is visible, with rw access, in two different
> containers, I don't see any anything good can happen. Sure, with the
At the raw level there are lots of use cases involving high performance
data capture, media streaming and the like.
At the file system layer you can use GFS2 for example.
So there are cases where it's possible. There are even cases where it's
actually useful at the filesystem level although not many I agree.
Alan
next prev parent reply other threads:[~2018-08-13 16:35 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-01 15:23 [PATCH 00/33] VFS: Introduce filesystem context [ver #11] David Howells
2018-08-01 15:24 ` [PATCH 01/33] vfs: syscall: Add open_tree(2) to reference or clone a mount " David Howells
2018-08-02 17:31 ` Alan Jenkins
2018-08-02 21:29 ` Al Viro
2018-08-02 21:51 ` David Howells
2018-08-02 23:46 ` Alan Jenkins
2018-08-01 15:24 ` [PATCH 02/33] vfs: syscall: Add move_mount(2) to move mounts around " David Howells
2018-08-01 15:26 ` [PATCH 25/33] vfs: syscall: Add fsopen() to prepare for superblock creation " David Howells
2018-08-01 15:27 ` [PATCH 28/33] vfs: syscall: Add fsconfig() for configuring and managing a context " David Howells
2018-08-06 17:28 ` Eric W. Biederman
2018-08-09 14:14 ` David Howells
2018-08-09 14:24 ` David Howells
2018-08-09 14:35 ` Miklos Szeredi
2018-08-09 15:32 ` Eric W. Biederman
2018-08-09 16:33 ` David Howells
2018-08-11 20:20 ` David Howells
2018-08-11 23:26 ` Andy Lutomirski
2018-08-01 15:27 ` [PATCH 29/33] vfs: syscall: Add fsmount() to create a mount for a superblock " David Howells
2018-08-01 15:27 ` [PATCH 30/33] vfs: syscall: Add fspick() to select a superblock for reconfiguration " David Howells
2018-08-24 14:51 ` Miklos Szeredi
2018-08-24 14:54 ` Andy Lutomirski
2018-08-10 14:05 ` BUG: Mount ignores mount options Eric W. Biederman
2018-08-10 14:36 ` Andy Lutomirski
2018-08-10 15:17 ` Eric W. Biederman
2018-08-10 15:24 ` Al Viro
2018-08-10 15:11 ` Tetsuo Handa
2018-08-10 15:13 ` David Howells
2018-08-10 15:16 ` Al Viro
[not found] ` <20180810151606.GA6515-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
2018-08-11 1:05 ` Eric W. Biederman
[not found] ` <87pnypiufr.fsf-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2018-08-11 1:46 ` Theodore Y. Ts'o
2018-08-11 4:48 ` Eric W. Biederman
[not found] ` <8736vlo6ef.fsf-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2018-08-11 17:47 ` Casey Schaufler
2018-08-15 4:03 ` Eric W. Biederman
2018-08-11 1:58 ` Al Viro
2018-08-11 2:17 ` Al Viro
2018-08-11 4:43 ` Eric W. Biederman
2018-08-13 12:54 ` Miklos Szeredi
2018-08-10 15:11 ` David Howells
2018-08-10 15:39 ` Theodore Y. Ts'o
2018-08-10 15:55 ` Casey Schaufler
2018-08-10 16:11 ` David Howells
2018-08-10 18:00 ` Eric W. Biederman
2018-08-10 15:53 ` David Howells
2018-08-10 16:14 ` Theodore Y. Ts'o
2018-08-10 20:06 ` Andy Lutomirski
2018-08-10 20:46 ` Theodore Y. Ts'o
2018-08-10 22:12 ` Darrick J. Wong
2018-08-10 23:54 ` Theodore Y. Ts'o
[not found] ` <20180810235447.GK627-AKGzg7BKzIDYtjvyW6yDsg@public.gmane.org>
2018-08-11 0:38 ` Darrick J. Wong
2018-08-11 1:32 ` Eric W. Biederman
2018-08-13 16:35 ` Alan Cox [this message]
2018-08-13 16:48 ` Andy Lutomirski
2018-08-13 17:29 ` Al Viro
2018-08-13 19:00 ` James Morris
2018-08-13 19:20 ` Casey Schaufler
2018-08-15 23:29 ` Serge E. Hallyn
[not found] ` <20180810161400.GA627-AKGzg7BKzIDYtjvyW6yDsg@public.gmane.org>
2018-08-11 0:28 ` Eric W. Biederman
2018-08-11 1:19 ` Eric W. Biederman
[not found] ` <87pnyphf8i.fsf-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2018-08-11 7:29 ` David Howells
2018-08-11 16:31 ` Andy Lutomirski
[not found] ` <9B6E2781-484B-4C42-95F5-F900EA36CEA5-kltTT9wpgjJwATOyAt5JVQ@public.gmane.org>
2018-08-11 16:51 ` Al Viro
2018-08-15 16:31 ` Should we split the network filesystem setup into two phases? David Howells
2018-08-15 16:51 ` Andy Lutomirski
2018-08-16 3:51 ` Steve French
2018-08-16 5:06 ` Eric W. Biederman
2018-08-16 16:24 ` Steve French
2018-08-16 17:21 ` Eric W. Biederman
2018-08-16 17:23 ` Aurélien Aptel
2018-08-16 18:36 ` Steve French
2018-08-17 23:11 ` Al Viro
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