Re: [RFC, PATCH 7/14] knfsd: export svc_sock_enqueue, svc_sock_received

[Greg Banks <gnb@sgi.com>]

On Wed, May 16, 2007 at 05:17:03PM -0400, J. Bruce Fields wrote:
> On Thu, May 17, 2007 at 05:24:25AM +1000, Greg Banks wrote:
> > 
> > Export svc_sock_enqueue() and svc_sock_received() so they
> > can be used by sunrpc server transport implementations
> > (even future modular ones).
> 
> Have you thought about how you'll handle the reference counting in the
> modular case?

Yes, but only thought not experimented nor discussed.  I was planning
to add a new file to /proc/fs/nfsd roughly analagous to the ports and
versions files, where the init script could write a string to indicate
which transports are enabled or disabled.  Transports would be managed
in a global list of structures analagous to struct xprt_type in Chuck's
client patches.  Enabling from userspace would search this list, try
a module load on failure, and bump the refcount.  Disabling would
shut down all svc_sock belonging to the transport type, then drop
the module refcount.  Neither traffic from clients nor creation of
svc_socks would affect the module refcount.

Greg.
-- 
Greg Banks, R&D Software Engineer, SGI Australian Software Group.
Apparently, I'm Bedevere.  Which MPHG character are you?
I don't speak for SGI.

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