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From: Al Viro <viro@ZenIV.linux.org.uk>
To: Miklos Szeredi <miklos@szeredi.hu>
Cc: hch@infradead.org, akpm@linux-foundation.org, serue@us.ibm.com,
	linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
	haveblue@us.ibm.com
Subject: Re: [patch 00/10] mount ownership and unprivileged mount syscall (v8)
Date: Sat, 23 Feb 2008 16:09:56 +0000	[thread overview]
Message-ID: <20080223160956.GR27894@ZenIV.linux.org.uk> (raw)
In-Reply-To: <E1JR4TX-000392-Cu@pomaz-ex.szeredi.hu>

On Mon, Feb 18, 2008 at 12:47:59PM +0100, Miklos Szeredi wrote:
> So what should I do?
> 
> Would Al be wanting to merge this into his VFS tree?  (Can't find it
> on git.kernel.org yet, BTW.)

FWIW, it's on hera right now, should propagate to git.kernel.org in a few.

Branches I'd pushed there: vfs-fixes.b0 and ro-bind.b0.  The latter is
on top of the former.  There will be more, but that at least takes care
of the most urgent stuff.  Again, apologies for things being too damn
slow ;-/

As for the unprivileged mounts...
	a) why do we lose them on clone() in new namespace?  Bloody
inconvenient, to put it mildly.
	b) why do we prohibit all kinds of remount?
	c) just what is limited by that sysctl?  AFAICS, rbind is allowed
if mountpoint is on user vfsmount and it seems to create vfsmounts without
eating into that limit just fine...  What's the point of limiting the
amount of vfsmounts marked user when you do not limit the number of vfsmount
one can allocate?

  reply	other threads:[~2008-02-23 16:10 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-05 21:36 Miklos Szeredi
2008-02-05 21:36 ` [patch 01/10] unprivileged mounts: add user mounts to the kernel Miklos Szeredi
2008-02-05 21:36 ` [patch 02/10] unprivileged mounts: allow unprivileged umount Miklos Szeredi
2008-02-05 21:36 ` [patch 03/10] unprivileged mounts: propagate error values from clone_mnt Miklos Szeredi
2008-02-05 21:36 ` [patch 04/10] unprivileged mounts: account user mounts Miklos Szeredi
2008-02-05 21:36 ` [patch 05/10] unprivileged mounts: allow unprivileged bind mounts Miklos Szeredi
2008-02-05 21:36 ` [patch 06/10] unprivileged mounts: allow unprivileged mounts Miklos Szeredi
2008-02-05 21:36 ` [patch 07/10] unprivileged mounts: add sysctl tunable for "safe" property Miklos Szeredi
2008-02-06 20:21   ` Serge E. Hallyn
2008-02-06 21:11     ` Miklos Szeredi
2008-02-06 22:45       ` Serge E. Hallyn
2008-02-07  8:09         ` Miklos Szeredi
2008-02-07 14:05           ` Serge E. Hallyn
2008-02-07 14:36             ` Miklos Szeredi
2008-02-07 16:57               ` Serge E. Hallyn
2008-02-07 15:33   ` Aneesh Kumar K.V
2008-02-07 16:24     ` Miklos Szeredi
2008-02-05 21:36 ` [patch 08/10] unprivileged mounts: make fuse safe Miklos Szeredi
2008-02-05 21:36 ` [patch 09/10] unprivileged mounts: propagation: inherit owner from parent Miklos Szeredi
2008-02-05 21:36 ` [patch 10/10] unprivileged mounts: add "no submounts" flag Miklos Szeredi
2008-02-15  6:21 ` [patch 00/10] mount ownership and unprivileged mount syscall (v8) Andrew Morton
2008-02-15  9:01   ` Christoph Hellwig
2008-02-15  9:09     ` Andrew Morton
2008-02-15  9:14       ` Christoph Hellwig
2008-02-18 11:47         ` Miklos Szeredi
2008-02-23 16:09           ` Al Viro [this message]
2008-02-23 17:33             ` Miklos Szeredi
2008-02-23 18:57               ` Al Viro
2008-02-23 19:48                 ` Miklos Szeredi

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