From: Matt Helsley <matthltc@us.ibm.com>
To: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: "Serge E. Hallyn" <serue@us.ibm.com>,
Linux Containers <containers@lists.linux-foundation.org>,
linux-nfs@vger.kernel.org,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
"J. Bruce Fields" <bfields@fieldses.org>,
Chuck Lever <chuck.lever@oracle.com>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Linux Containers <containers@lists.osdl.org>,
Cedric Le Goater <clg@fr.ibm.com>
Subject: Re: [RFC][PATCH 2/4] sunrpc: Use utsnamespaces
Date: Tue, 06 Jan 2009 16:08:50 -0800 [thread overview]
Message-ID: <1231286930.14345.196.camel@localhost> (raw)
In-Reply-To: <1231281732.4173.6.camel@heimdal.trondhjem.org>
On Tue, 2009-01-06 at 17:42 -0500, Trond Myklebust wrote:
> On Tue, 2009-01-06 at 15:58 -0600, Serge E. Hallyn wrote:
>
> > So should we use patch 2/4, plus (as someone - was it you? - suggested)
> > using a DEFAULT instead of init_utsname()->nodename when
> > current->utsname() == NULL?
>
> No. I'm don't think that 2/4 is correct either. Basically, 2/4 is saying
> that the container that first mounts the filesystem 'owns' it. However
> at the same time we know that the lifetime of the filesystem is in no
> way bounded by the lifetime of the container, and that's what gets you
> into trouble with 'umount' in the first place.
>
> IMO, the current code is the most correct approach, in that it assumes
> that the filesystems are owned by the 'init' namespace.
IMHO This seems more incorrect than trying to use a more proximal
namespace.
Cheers,
-Matt Helsley
next prev parent reply other threads:[~2009-01-07 0:09 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-06 1:13 [RFC][PATCH 0/4] utsns: RPC/NFS bug rework Matt Helsley
2009-01-06 1:13 ` [RFC][PATCH 1/4] Remove useless utsname.h includes Matt Helsley
2009-01-06 1:13 ` [RFC][PATCH 2/4] sunrpc: Use utsnamespaces Matt Helsley
2009-01-06 20:02 ` Serge E. Hallyn
2009-01-06 20:20 ` J. Bruce Fields
2009-01-06 21:53 ` Serge E. Hallyn
2009-01-06 23:35 ` Matt Helsley
2009-01-06 22:43 ` Matt Helsley
2009-01-06 20:44 ` Trond Myklebust
2009-01-06 21:58 ` Serge E. Hallyn
2009-01-06 22:42 ` Trond Myklebust
2009-01-07 0:08 ` Matt Helsley [this message]
2009-01-07 0:20 ` Trond Myklebust
2009-01-07 0:43 ` Matt Helsley
2009-01-07 1:10 ` Trond Myklebust
2009-01-07 0:20 ` J. Bruce Fields
2009-01-07 0:23 ` Trond Myklebust
2009-01-07 3:44 ` Matt Helsley
2009-01-06 23:04 ` Eric W. Biederman
2009-01-06 23:15 ` Trond Myklebust
2009-01-06 23:32 ` J. Bruce Fields
2009-01-06 23:35 ` Trond Myklebust
2009-01-06 23:48 ` Matt Helsley
2009-01-06 23:51 ` Chuck Lever
2009-01-06 23:53 ` J. Bruce Fields
2009-01-07 0:07 ` Matt Helsley
2009-01-07 0:55 ` Eric W. Biederman
2009-01-07 0:20 ` Trond Myklebust
2009-01-07 0:20 ` Trond Myklebust
2009-01-07 0:26 ` J. Bruce Fields
2009-01-07 0:38 ` Trond Myklebust
2009-01-07 1:44 ` J. Bruce Fields
2009-01-07 1:50 ` Trond Myklebust
2009-01-07 2:37 ` Eric W. Biederman
2009-01-06 23:30 ` Matt Helsley
2009-01-06 23:18 ` Matt Helsley
2009-01-06 23:43 ` Trond Myklebust
2009-01-06 23:58 ` Matt Helsley
2009-01-06 22:29 ` Chuck Lever
2009-01-07 0:01 ` Serge E. Hallyn
2009-01-06 1:13 ` [RFC][PATCH 3/4] sunrpc: Improve UTS namespace workaround Matt Helsley
2009-01-06 16:02 ` Chuck Lever
2009-01-07 0:28 ` Matt Helsley
2009-01-07 3:02 ` Matt Helsley
2009-01-06 1:13 ` [RFC][PATCH 4/4] Represent RPC Callers Matt Helsley
2009-01-06 13:04 ` Trond Myklebust
2009-01-06 23:05 ` Matt Helsley
-- strict thread matches above, loose matches on Subject: below --
2009-01-07 0:39 [RFC][PATCH 2/4] sunrpc: Use utsnamespaces trond.myklebust
2009-01-07 0:57 ` Matt Helsley
2009-01-07 1:02 ` Trond Myklebust
2009-01-07 1:22 ` Matt Helsley
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