On Thu, Jun 13, 2024 at 09:01:47AM -0700, Paul E. McKenney wrote:
>
> Is there a way to avoid this issue by making this be a statement parameter
> to a macro?
Something like this? It appears to work for the intended use, at least.
---
diff --git a/include/linux/rculist.h b/include/linux/rculist.h
index 3dc1e58865f77..cdd2e5c0d5cdb 100644
--- a/include/linux/rculist.h
+++ b/include/linux/rculist.h
@@ -204,6 +204,30 @@ static inline void list_replace_rcu(struct list_head *old,
old->prev = LIST_POISON2;
}
+
+static inline void __list_cut_start(struct list_head *list,
+ struct list_head *head,
+ struct list_head *entry)
+{
+ list->next = entry;
+ list->prev = head->prev;
+ __list_del(entry->prev, head);
+}
+
+static inline void __list_cut_end(struct list_head *list,
+ struct list_head *entry)
+{
+ entry->prev = list;
+ list->prev->next = list;
+}
+
+#define list_cut_rcu(list, head, entry, sync) \
+ do { \
+ __list_cut_start(list, head, entry); \
+ sync; \
+ __list_cut_end(list, entry); \
+ } while (0)
+
/**
* __list_splice_init_rcu - join an RCU-protected list into an existing list.
* @list: the RCU-protected list to splice
--
