ck_rwlock: Forgot to add acquire on operation success.

include/ck_rwlock.h

@@ -113,6 +113,7 @@ ck_rwlock_read_trylock(ck_rwlock_t *rw)
 	return false;
 
 leave:
+	ck_pr_fence_load();
 	return true;
 }
 
@@ -131,6 +132,7 @@ ck_rwlock_read_lock(ck_rwlock_t *rw)
 		ck_pr_dec_uint(&rw->n_readers);
 	}
 
+	ck_pr_fence_load();
 	return;
 }