[PATCH v5 4/7] llist: simplify __llist_del_all
Andrzej Hajda
andrzej.hajda at intel.com
Wed Jan 18 07:44:47 PST 2023
llist_del_all uses xchg, let's use __xchg here.
Signed-off-by: Andrzej Hajda <andrzej.hajda at intel.com>
---
include/linux/llist.h | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/include/linux/llist.h b/include/linux/llist.h
index 85bda2d02d65be..4dc1d185ea98ab 100644
--- a/include/linux/llist.h
+++ b/include/linux/llist.h
@@ -50,6 +50,7 @@
#include <linux/atomic.h>
#include <linux/container_of.h>
+#include <linux/non-atomic/xchg.h>
#include <linux/stddef.h>
#include <linux/types.h>
@@ -241,10 +242,7 @@ static inline struct llist_node *llist_del_all(struct llist_head *head)
static inline struct llist_node *__llist_del_all(struct llist_head *head)
{
- struct llist_node *first = head->first;
-
- head->first = NULL;
- return first;
+ return __xchg(&head->first, NULL);
}
extern struct llist_node *llist_del_first(struct llist_head *head);
--
2.34.1
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