tree 7ccd884928c644cebd717306937565fbcdc9dd88
parent dc9a16e49dbba3dd042e6aec5d9a7929e099a89b
author Tom Tucker <tom@opengridcomputing.com> 1199070513 -0600
committer J. Bruce Fields <bfields@citi.umich.edu> 1201902133 -0500

svc: Add svc API that queries for a transport instance

Add a new svc function that allows a service to query whether a
transport instance has already been created. This is used in lockd
to determine whether or not a transport needs to be created when
a lockd instance is brought up.

Specifying 0 for the address family or port is effectively a wild-card,
and will result in matching the first transport in the service's list
that has a matching class name.

Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
Acked-by: Neil Brown <neilb@suse.de>
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Greg Banks <gnb@sgi.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>