From c83fb5aadad6f7eb1e65c1cb14a7ddc2d98bd334 Mon Sep 17 00:00:00 2001
From: pjd <pjd@FreeBSD.org>
Date: Wed, 23 Jul 2008 15:12:45 +0000
Subject: Back out this change, as it breaks the build and I don't have time
 for a better fix today.

---
 sys/sys/refcount.h | 14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

diff --git a/sys/sys/refcount.h b/sys/sys/refcount.h
index df4dd41..9788fdf 100644
--- a/sys/sys/refcount.h
+++ b/sys/sys/refcount.h
@@ -32,14 +32,6 @@
 #ifndef __SYS_REFCOUNT_H__
 #define __SYS_REFCOUNT_H__
 
-#ifdef _KERNEL
-#include <sys/systm.h>
-#else
-#include <assert.h>
-#define	KASSERT(exp, msg)	assert(exp)
-#endif
-#include <machine/atomic.h>
-
 static __inline void
 refcount_init(volatile u_int *count, u_int value)
 {
@@ -57,12 +49,8 @@ refcount_acquire(volatile u_int *count)
 static __inline int
 refcount_release(volatile u_int *count)
 {
-	u_int old;
 
-	/* XXX: Should this have a rel membar? */
-	old = atomic_fetchadd_int(count, -1);
-	KASSERT(old > 0, ("negative refcount %p", count));
-	return (old == 1);
+	return (atomic_fetchadd_int(count, -1) == 1);
 }
 
 #endif	/* ! __SYS_REFCOUNT_H__ */
-- 
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