[PATCH] PATCH 6/7: knfsd cleanups - syscall cleanup

[PATCH] PATCH 6/7: knfsd cleanups - syscall cleanup

Cleanup the syscall interface to nfsd

1/ add an "owner" field to the nfsd_linkage structure
2/ grab a reference to that module before calling the syscall
3/ Remove the reference counting from inside the module
4/ Always allow nfsd module to be called, even if compile with
	CONFIG_NFSD == N
   ( but not if CONFIG_MODULES also == N)