linux-kernel - Re: [PATCH v4 4/8] SUNRPC: setup rpcbind clients if service requires it

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Message-ID: <20110920072206.117db4ce@corrin.poochiereds.net>
Date:	Tue, 20 Sep 2011 07:22:06 -0400
From:	Jeff Layton <jlayton@...hat.com>
To:	Stanislav Kinsbursky <skinsbursky@...allels.com>
Cc:	Trond.Myklebust@...app.com, linux-nfs@...r.kernel.org,
	xemul@...allels.com, neilb@...e.de, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, bfields@...ldses.org,
	davem@...emloft.net
Subject: Re: [PATCH v4 4/8] SUNRPC: setup rpcbind clients if service
 requires it

On Tue, 20 Sep 2011 14:14:04 +0400
Stanislav Kinsbursky <skinsbursky@...allels.com> wrote:

> New function ("svc_uses_rpcbind") will be used to detect, that new service will
> send portmapper register calls. For such services we will create rpcbind
> clients and remove all stale portmap registrations.
> Also, svc_rpcb_cleanup() will be set as sv_shutdown callback for such services
> in case of this field wasn't initialized earlier. This will allow to destroy
> rpcbind clients when no other users of them left.
> 
> Note: Currently, any creating service will be detected as portmap user.
> Probably, this is wrong. But now it depends on program versions "vs_hidden"
> flag.
> 

Yes, I think that nfs4_callback_version4 should also have vs_hidden
set. Currently, it's trying to unregister the service from the
portmapper on shutdown even though it's not registering it. Basically,
any service that sets up its sockets with SVC_SOCK_ANONYMOUS should
also have vs_hidden set on all versions.

-- 
Jeff Layton <jlayton@...hat.com>
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