powerpc/atomic: Fix atomic_cmpset_rel()

Need a release barrier, not an acquire barrier, else bad things happen.
2019-10-15 03:37:21 +00:00 · 2019-10-15 03:37:21 +00:00 · 9551397f51
commit 9551397f51
parent 63e9755548
1 changed files with 1 additions and 1 deletions
--- a/sys/powerpc/include/atomic.h
+++ b/sys/powerpc/include/atomic.h
@ -682,7 +682,7 @@ atomic_cmpset_long(volatile u_long* p, u_long cmpval, u_long newval)
    atomic_cmpset_rel_##type(volatile u_##type *p, \
 	    u_##type cmpval, u_##type newval)\
    {\
-	__ATOMIC_ACQ();\
+	__ATOMIC_REL();\
 	return (atomic_cmpset_##type(p, cmpval, newval));\
    }\
    struct hack