linux-kernel - Re: [RFC PATCH 0/4] SUNRPC: rework cache upcall to avoid NFSd root swapping

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Message-ID: <5109FDF7.60002@parallels.com>
Date:	Thu, 31 Jan 2013 09:15:35 +0400
From:	Stanislav Kinsbursky <skinsbursky@...allels.com>
To:	"J. Bruce Fields" <bfields@...ldses.org>
CC:	<linux-nfs@...r.kernel.org>, <Trond.Myklebust@...app.com>,
	<linux-kernel@...r.kernel.org>, <devel@...nvz.org>
Subject: Re: [RFC PATCH 0/4] SUNRPC: rework cache upcall to avoid NFSd root
 swapping

31.01.2013 03:00, J. Bruce Fields пишет:
> On Tue, Jan 15, 2013 at 11:09:23AM +0300, Stanislav Kinsbursky wrote:
>> The main idea of this patch set is to call cache request not on kthread
>> upcall, but on userspace daemon cache_read call. This fixes the problem with
>> gaining of wrong dentry path after calling d_path() in kthread root context
>> (svc_export_request() callback), which always work in init root context, but
>> containers can work in "root jail" - i.e. have it's own nested root.
>
> Sorry for the delay.  This looks good to me--committing pending some
> testing.
>
> What's left now for basic containerized nfsd support?
>

Sure, thanks!
Not that many patches left: NFSd fs per-net (to get the proper context from the superblock), disabling UMH tracker for a while (again selecting proper root 
issue) and removing of error patch for state tracker in current net != &init_net.
They are simple so I'm going to re-send them soon. Just wanna work a bit more on per-net service shutdown first since it looks more urgent.


-- 
Best regards,
Stanislav Kinsbursky
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