linux-kernel - Re: [PATCH v3 0/3] SUNRPC: rcbind clients virtualization

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Message-ID: <20111104221045.GL721@fieldses.org>
Date:	Fri, 4 Nov 2011 18:10:45 -0400
From:	"J. Bruce Fields" <bfields@...ldses.org>
To:	Stanislav Kinsbursky <skinsbursky@...allels.com>
Cc:	"Trond.Myklebust@...app.com" <Trond.Myklebust@...app.com>,
	"linux-nfs@...r.kernel.org" <linux-nfs@...r.kernel.org>,
	Pavel Emelianov <xemul@...allels.com>,
	"neilb@...e.de" <neilb@...e.de>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"davem@...emloft.net" <davem@...emloft.net>,
	"devel@...nvz.org" <devel@...nvz.org>
Subject: Re: [PATCH v3 0/3] SUNRPC: rcbind clients virtualization

On Fri, Oct 28, 2011 at 01:41:49PM +0400, Stanislav Kinsbursky wrote:
> 28.10.2011 13:30, J. Bruce Fields пишет:
> >On Fri, Oct 28, 2011 at 01:24:45PM +0400, Stanislav Kinsbursky wrote:
> >>This patch-set was created before you've sent your NFSd plan and we
> >>disacussed Lockd per netns.
> >>So, this sentence: "NFSd service will be per netns too from my pow"
> >>is obsolete. And Lockd will be one for all.
> >
> >I believe lockd should be pert-netns--at least that's what the server
> >needs.
> >
> >(The single lockd thread may handle requests from all netns, but it
> >should behave like a different service depending on netns, so its data
> >structures, etc. will need to be per-ns.
> >
> 
> Sure. Looks like we have misunderstanding here. When I said, that
> Lockd should be one for all, I meaned, that we will have only one
> kthread for all ns (not one per ns). Private data will be per net
> ns, of course.
> 
> BTW, Bruce, please, have a brief look at my e-mail to
> linux-nfs@...r.kernel.org named "SUNRPC: non-exclusive pipe
> creation".
> I've done a lot in "RPC pipefs per net ns" task, and going to send
> first patches soon. But right now I'm really confused will this
> non-exclusive pipes creation and almost ready so remove this
> functionality. But I'm afraid, that I've missed something. Would be
> greatly appreciate for your opinion about my question.

Sorry for the delay--it looks reasonable to me on a quick skim, but I'm
assuming it's Trond that will need to review this.

--b.

> 
> >--b.
> >
> >>Or you are asking about something else?
> >>
> >>>--b.
> >>>
> >>>>And also we have NFSd file system, which
> >>>>is not virtualized yet.
> >>>>
> >>>>The following series consists of:
> >>>>
> >>>>---
> >>>>
> >>>>Stanislav Kinsbursky (3):
> >>>>       SUNRPC: move rpcbind internals to sunrpc part of network namespace context
> >>>>       SUNRPC: optimize net_ns dereferencing in rpcbind creation calls
> >>>>       SUNRPC: optimize net_ns dereferencing in rpcbind registering calls
> >>>>
> >>>>
> >>>>  net/sunrpc/netns.h     |    5 ++
> >>>>  net/sunrpc/rpcb_clnt.c |  103 ++++++++++++++++++++++++++----------------------
> >>>>  2 files changed, 61 insertions(+), 47 deletions(-)
> >>>>
> >>>>--
> >>>>Signature
> >>
> >>
> >>--
> >>Best regards,
> >>Stanislav Kinsbursky
> 
> 
> -- 
> Best regards,
> Stanislav Kinsbursky
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