From: Colin Walters <walters@verbum.org>
To: tytso@mit.edu
Cc: David Herrmann <dh.herrmann@gmail.com>,
linux-kernel@vger.kernel.org, Hugh Dickins <hughd@google.com>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Matthew Wilcox <matthew@wil.cx>,
Karol Lewandowski <k.lewandowsk@samsung.com>,
Kay Sievers <kay@vrfy.org>, Daniel Mack <zonque@gmail.com>,
Lennart Poettering <lennart@poettering.net>,
Kristian@thunk.org, john.stultz@linaro.org,
Greg Kroah-Hartman <greg@kroah.com>, Tejun Heo <tj@kernel.org>,
Johannes Weiner <hannes@cmpxchg.org>,
dri-devel@lists.freedesktop.org, linux-fsdevel@vger.kernel.org,
linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Ryan Lortie <desrt@desrt.ca>,
mtk.manpages@gmail.com
Subject: Re: [PATCH 0/6] File Sealing & memfd_create()
Date: Thu, 10 Apr 2014 14:45:48 +0000 [thread overview]
Message-ID: <1397141388.16343.10@mail.messagingengine.com> (raw)
In-Reply-To: <20140320153250.GC20618@thunk.org>
On Thu, Mar 20, 2014 at 11:32 AM, tytso@mit.edu wrote:
>
> Looking at your patches, and what files you are modifying, you are
> enforcing this in the low-level file system.
I would love for this to be implemented in the filesystem level as
well. Something like the ext4 immutable bit, but with the ability to
still make hardlinks would be *very* useful for OSTree. And anyone
else that uses hardlinks as a data source. The vserver people do
something similiar:
http://linux-vserver.org/util-vserver:Vhashify
At the moment I have a read-only bind mount over /usr, but what I
really want is to make the individual objects in the object store in
/ostree/repo/objects be immutable, so even if a user or app navigates
out to /sysroot they still can't mutate them (or the link targets in
the visible /usr).
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next prev parent reply other threads:[~2014-04-10 14:45 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-19 19:06 [PATCH 0/6] File Sealing & memfd_create() David Herrmann
2014-03-19 19:06 ` [PATCH 1/6] fs: fix i_writecount on shmem and friends David Herrmann
2014-03-19 19:06 ` [PATCH 2/6] shm: add sealing API David Herrmann
2014-03-19 19:06 ` [PATCH 3/6] shm: add memfd_create() syscall David Herrmann
2014-03-20 8:47 ` Cyrill Gorcunov
2014-03-20 9:01 ` Pavel Emelyanov
2014-03-20 11:29 ` David Herrmann
2014-03-20 11:50 ` Pavel Emelyanov
2014-03-20 19:22 ` John Stultz
2014-04-02 13:38 ` Konstantin Khlebnikov
2014-04-02 14:18 ` David Herrmann
2014-04-02 14:52 ` Konstantin Khlebnikov
2014-04-10 19:07 ` Andy Lutomirski
2014-03-19 19:06 ` [PATCH 4/6] selftests: add memfd_create() + sealing tests David Herrmann
2014-03-19 19:06 ` [PATCH man-pages 5/6] fcntl.2: document SHMEM_SET/GET_SEALS commands David Herrmann
2014-03-19 19:06 ` [PATCH man-pages 6/6] memfd_create.2: add memfd_create() man-page David Herrmann
2014-03-20 2:55 ` [PATCH 0/6] File Sealing & memfd_create() Greg Kroah-Hartman
2014-03-20 3:49 ` Linus Torvalds
2014-03-20 8:07 ` David Herrmann
2014-03-20 14:41 ` One Thousand Gnomes
2014-03-20 15:12 ` David Herrmann
2014-03-20 15:26 ` One Thousand Gnomes
2014-03-20 15:32 ` tytso
2014-03-20 15:39 ` One Thousand Gnomes
2014-03-20 15:48 ` David Herrmann
2014-03-20 16:38 ` tytso
2014-04-10 19:14 ` Andy Lutomirski
2014-04-10 20:32 ` Theodore Ts'o
2014-04-10 20:37 ` Andy Lutomirski
2014-04-10 20:49 ` David Herrmann
2014-04-10 21:16 ` Andy Lutomirski
2014-04-10 22:57 ` David Herrmann
2014-04-10 23:05 ` Andy Lutomirski
2014-04-10 23:16 ` David Herrmann
2014-04-10 23:32 ` Andy Lutomirski
2014-04-20 15:03 ` Pavel Machek
2014-06-17 9:48 ` Florian Weimer
2014-06-17 16:21 ` Andy Lutomirski
2014-04-10 14:45 ` Colin Walters [this message]
2014-04-10 19:15 ` Andy Lutomirski
2014-04-10 19:45 ` Colin Walters
2014-04-11 6:09 ` Alex Elsayed
2014-04-08 13:00 ` Florian Weimer
2014-04-09 21:31 ` David Herrmann
2014-04-22 9:10 ` Florian Weimer
2014-04-22 11:55 ` David Herrmann
2014-04-22 12:44 ` Florian Weimer
2014-04-22 12:55 ` David Herrmann
2014-04-10 19:17 ` Andy Lutomirski
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