diff --git a/fs/lockd/host.c b/fs/lockd/host.c
index 572601e98dcd..ebec0098efbf 100644
--- a/fs/lockd/host.c
+++ b/fs/lockd/host.c
@@ -34,10 +34,10 @@ static DEFINE_MUTEX(nlm_host_mutex);
 
 static void			nlm_gc_hosts(void);
 static struct nsm_handle *	__nsm_find(const struct sockaddr_in *,
-					const char *, int, int);
+					const char *, unsigned int, int);
 static struct nsm_handle *	nsm_find(const struct sockaddr_in *sin,
 					 const char *hostname,
-					 int hostname_len);
+					 unsigned int hostname_len);
 
 /*
  * Common host lookup routine for server & client
@@ -45,7 +45,8 @@ static struct nsm_handle *	nsm_find(const struct sockaddr_in *sin,
 static struct nlm_host *
 nlm_lookup_host(int server, const struct sockaddr_in *sin,
 		int proto, int version, const char *hostname,
-		int hostname_len, const struct sockaddr_in *ssin)
+		unsigned int hostname_len,
+		const struct sockaddr_in *ssin)
 {
 	struct hlist_head *chain;
 	struct hlist_node *pos;
@@ -176,7 +177,7 @@ nlm_destroy_host(struct nlm_host *host)
  */
 struct nlm_host *
 nlmclnt_lookup_host(const struct sockaddr_in *sin, int proto, int version,
-			const char *hostname, int hostname_len)
+			const char *hostname, unsigned int hostname_len)
 {
 	struct sockaddr_in ssin = {0};
 
@@ -189,7 +190,7 @@ nlmclnt_lookup_host(const struct sockaddr_in *sin, int proto, int version,
  */
 struct nlm_host *
 nlmsvc_lookup_host(struct svc_rqst *rqstp,
-			const char *hostname, int hostname_len)
+			const char *hostname, unsigned int hostname_len)
 {
 	struct sockaddr_in ssin = {0};
 
@@ -307,7 +308,8 @@ void nlm_release_host(struct nlm_host *host)
  * Release all resources held by that peer.
  */
 void nlm_host_rebooted(const struct sockaddr_in *sin,
-				const char *hostname, int hostname_len,
+				const char *hostname,
+				unsigned int hostname_len,
 				u32 new_state)
 {
 	struct hlist_head *chain;
@@ -449,7 +451,7 @@ static DEFINE_MUTEX(nsm_mutex);
 
 static struct nsm_handle *
 __nsm_find(const struct sockaddr_in *sin,
-		const char *hostname, int hostname_len,
+		const char *hostname, unsigned int hostname_len,
 		int create)
 {
 	struct nsm_handle *nsm = NULL;
@@ -503,7 +505,8 @@ out:
 }
 
 static struct nsm_handle *
-nsm_find(const struct sockaddr_in *sin, const char *hostname, int hostname_len)
+nsm_find(const struct sockaddr_in *sin, const char *hostname,
+	 unsigned int hostname_len)
 {
 	return __nsm_find(sin, hostname, hostname_len, 1);
 }
diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h
index e2d1ce36b367..4babb2a129ac 100644
--- a/include/linux/lockd/lockd.h
+++ b/include/linux/lockd/lockd.h
@@ -173,14 +173,17 @@ void		  nlmclnt_next_cookie(struct nlm_cookie *);
 /*
  * Host cache
  */
-struct nlm_host * nlmclnt_lookup_host(const struct sockaddr_in *, int, int, const char *, int);
-struct nlm_host * nlmsvc_lookup_host(struct svc_rqst *, const char *, int);
+struct nlm_host  *nlmclnt_lookup_host(const struct sockaddr_in *, int, int,
+					const char *, unsigned int);
+struct nlm_host  *nlmsvc_lookup_host(struct svc_rqst *, const char *,
+					unsigned int);
 struct rpc_clnt * nlm_bind_host(struct nlm_host *);
 void		  nlm_rebind_host(struct nlm_host *);
 struct nlm_host * nlm_get_host(struct nlm_host *);
 void		  nlm_release_host(struct nlm_host *);
 void		  nlm_shutdown_hosts(void);
-extern void	  nlm_host_rebooted(const struct sockaddr_in *, const char *, int, u32);
+extern void	  nlm_host_rebooted(const struct sockaddr_in *, const char *,
+					unsigned int, u32);
 void		  nsm_release(struct nsm_handle *);
 
 
diff --git a/include/linux/lockd/xdr.h b/include/linux/lockd/xdr.h
index 83a1f9f6237b..df18fa053bcd 100644
--- a/include/linux/lockd/xdr.h
+++ b/include/linux/lockd/xdr.h
@@ -29,7 +29,7 @@ struct svc_rqst;
 /* Lock info passed via NLM */
 struct nlm_lock {
 	char *			caller;
-	int			len; 	/* length of "caller" */
+	unsigned int		len; 	/* length of "caller" */
 	struct nfs_fh		fh;
 	struct xdr_netobj	oh;
 	u32			svid;
@@ -78,7 +78,7 @@ struct nlm_res {
  */
 struct nlm_reboot {
 	char *		mon;
-	int		len;
+	unsigned int	len;
 	u32		state;
 	__be32		addr;
 	__be32		vers;