[PATCH] knfsd: when looking up a lockd host, pass hostname & length

This patch adds the peer's hostname (and name length) to all calls to
nlm*_lookup_host functions.  A subsequent patch will make use of these (is
requested by a sysctl).

Signed-off-by: Olaf Kirch <okir@suse.de>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

fs/lockd/svcproc.c

@@ -66,7 +66,7 @@ nlmsvc_retrieve_args(struct svc_rqst *rqstp, struct nlm_args *argp,
 		return nlm_lck_denied_nolocks;
 
 	/* Obtain host handle */
-	if (!(host = nlmsvc_lookup_host(rqstp))
+	if (!(host = nlmsvc_lookup_host(rqstp, lock->caller, lock->len))
 	 || (argp->monitor && nsm_monitor(host) < 0))
 		goto no_locks;
 	*hostp = host;
@@ -287,7 +287,9 @@ static int nlmsvc_callback(struct svc_rqst *rqstp, u32 proc, struct nlm_args *ar
 	struct nlm_rqst	*call;
 	int stat;
 
-	host = nlmsvc_lookup_host(rqstp);
+	host = nlmsvc_lookup_host(rqstp,
+				  argp->lock.caller,
+				  argp->lock.len);
 	if (host == NULL)
 		return rpc_system_err;