Index: sys/kern/kern_resource.c
===================================================================
--- sys/kern/kern_resource.c
+++ sys/kern/kern_resource.c
@@ -80,8 +80,6 @@
 static struct uidinfo *uilookup(uid_t uid);
 static void	ruxagg_locked(struct rusage_ext *rux, struct thread *td);
 
-static __inline int	lim_shared(struct plimit *limp);
-
 /*
  * Resource controls and accounting.
  */
@@ -1109,13 +1107,6 @@
 	return (limp);
 }
 
-static __inline int
-lim_shared(struct plimit *limp)
-{
-
-	return (limp->pl_refcnt > 1);
-}
-
 void
 lim_fork(struct proc *p1, struct proc *p2)
 {
@@ -1146,7 +1137,7 @@
 lim_copy(struct plimit *dst, struct plimit *src)
 {
 
-	KASSERT(!lim_shared(dst), ("lim_copy to shared limit"));
+	KASSERT(dst->pl_refcnt <= 1, ("lim_copy to shared limit"));
 	bcopy(src->pl_rlimit, dst->pl_rlimit, sizeof(src->pl_rlimit));
 }