[Qemu-devel] [PATCH v2 01/11] rcu_queue: use atomic_set in QLIST_REMOVE_RCU

[Emilio G. Cota]

To avoid undefined behaviour.

Signed-off-by: Emilio G. Cota <c...@braap.org>
---
 include/qemu/rcu_queue.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/qemu/rcu_queue.h b/include/qemu/rcu_queue.h
index 01be77407b..dd7b3be043 100644
--- a/include/qemu/rcu_queue.h
+++ b/include/qemu/rcu_queue.h
@@ -112,7 +112,7 @@ extern "C" {
        (elm)->field.le_next->field.le_prev =        \
         (elm)->field.le_prev;                       \
     }                                               \
-    *(elm)->field.le_prev =  (elm)->field.le_next;  \
+    atomic_set((elm)->field.le_prev, (elm)->field.le_next); \
 } while (/*CONSTCOND*/0)
 
 /* List traversal must occur within an RCU critical section.  */
-- 
2.17.1