5045 use atomic_{inc,dec}_* instead of atomic_add_*

@@ -241,11 +241,11 @@
 
 static uint_t clts_rcstat_ndata =
         sizeof (clts_rcstat_tmpl) / sizeof (kstat_named_t);
 
 #define RCSTAT_INCR(s, x)                       \
-        atomic_add_64(&(s)->x.value.ui64, 1)
+        atomic_inc_64(&(s)->x.value.ui64)
 
 #define ptoh(p)         (&((p)->cku_client))
 #define htop(h)         ((struct cku_private *)((h)->cl_private))
 
 /*