From: "J. Bruce Fields" <bfields@fieldses.org>
To: Stanislav Kinsbursky <skinsbursky@parallels.com>
Cc: linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org,
devel@openvz.org
Subject: Re: [Devel] [PATCH 2/6] nfsd: swap fs root in NFSd kthreads
Date: Tue, 11 Dec 2012 10:35:28 -0500 [thread overview]
Message-ID: <20121211153527.GC3336@fieldses.org> (raw)
In-Reply-To: <20121211152036.GB3336@fieldses.org>
On Tue, Dec 11, 2012 at 10:20:36AM -0500, J. Bruce Fields wrote:
> On Tue, Dec 11, 2012 at 07:07:00PM +0400, Stanislav Kinsbursky wrote:
> > I don't really understand, how mountd's root can be wrong. I.e.
> > its' always right as I see it. NFSd kthreads have to swap/use
> > relative path/whatever to communicate with proper mountd.
> > Or I'm missing something?
>
> Ugh, I see the problem: I thought svc_export_request was called at the
> time mountd does the read, but instead its done at the time nfsd does
> the upcall.
>
> I suspect that's wrong, and we really want this done in the context of
> the mountd process when it does the read call. If d_path is called
> there then we have no problem.
Right, so I'd be happier if we could modify sunrpc_cache_pipe_upcall to
skip calling cache_request and instead delay that until cache_read(). I
think that should be possible.
--b.
next prev parent reply other threads:[~2012-12-11 15:35 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-06 15:34 [PATCH 0/6] nfsd: make is works in a container Stanislav Kinsbursky
2012-12-06 15:34 ` [PATCH 1/6] nfsd: pass proper net to nfsd_destroy() from NFSd kthreads Stanislav Kinsbursky
2012-12-06 15:34 ` [PATCH 2/6] nfsd: swap fs root in " Stanislav Kinsbursky
2012-12-10 20:28 ` J. Bruce Fields
2012-12-11 14:00 ` Stanislav Kinsbursky
2012-12-11 14:12 ` [Devel] " Stanislav Kinsbursky
2012-12-11 14:51 ` Stanislav Kinsbursky
2012-12-11 14:56 ` J. Bruce Fields
2012-12-11 14:58 ` Al Viro
2012-12-11 15:07 ` Stanislav Kinsbursky
2012-12-11 15:20 ` J. Bruce Fields
2012-12-11 15:35 ` J. Bruce Fields [this message]
2012-12-12 7:45 ` Stanislav Kinsbursky
2013-01-11 14:56 ` Stanislav Kinsbursky
2013-01-11 17:03 ` J. Bruce Fields
2013-01-11 17:20 ` J. Bruce Fields
2013-01-14 6:17 ` Stanislav Kinsbursky
2013-01-14 6:08 ` Stanislav Kinsbursky
2012-12-11 14:54 ` Al Viro
2012-12-11 14:57 ` Stanislav Kinsbursky
2012-12-06 15:34 ` [PATCH 3/6] nfsd: make containerise NFSd filesystem Stanislav Kinsbursky
2012-12-06 15:34 ` [PATCH 4/6] nfsd: use proper net while reading "exports" file Stanislav Kinsbursky
2012-12-06 15:35 ` [PATCH 5/6] nfsd: disable usermode helper client tracker in container Stanislav Kinsbursky
2012-12-06 15:35 ` [PATCH 6/6] nfsd: enable NFSv4 state in containers Stanislav Kinsbursky
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20121211153527.GC3336@fieldses.org \
--to=bfields@fieldses.org \
--cc=devel@openvz.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-nfs@vger.kernel.org \
--cc=skinsbursky@parallels.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.