Provide compatibility shim for atomic_dec_64_nv.

X-MFC-with: r270247 MFC after: 13 days
2014-08-21 08:25:46 +00:00 · 2014-08-21 08:25:46 +00:00 · d291a3bd9c
commit d291a3bd9c
parent f8569ca154
1 changed files with 6 additions and 0 deletions
--- a/sys/cddl/compat/opensolaris/sys/atomic.h
+++ b/sys/cddl/compat/opensolaris/sys/atomic.h
@ -117,6 +117,12 @@ atomic_inc_64_nv(volatile uint64_t *target)
 	return (atomic_add_64_nv(target, 1));
 }

+static __inline uint64_t
+atomic_dec_64_nv(volatile uint64_t *target)
+{
+	return (atomic_add_64_nv(target, -1));
+}
+
 #if !defined(COMPAT_32BIT) && defined(__LP64__)
 static __inline void *
 atomic_cas_ptr(volatile void *target, void *cmp,  void *newval)