diff options
Diffstat (limited to 'lib/llist.c')
| -rw-r--r-- | lib/llist.c | 15 | 
1 files changed, 5 insertions, 10 deletions
diff --git a/lib/llist.c b/lib/llist.c index 4a15115e90f8..4a70d120138c 100644 --- a/lib/llist.c +++ b/lib/llist.c @@ -39,18 +39,13 @@  bool llist_add_batch(struct llist_node *new_first, struct llist_node *new_last,  		     struct llist_head *head)  { -	struct llist_node *entry, *old_entry; +	struct llist_node *first; -	entry = head->first; -	for (;;) { -		old_entry = entry; -		new_last->next = entry; -		entry = cmpxchg(&head->first, old_entry, new_first); -		if (entry == old_entry) -			break; -	} +	do { +		new_last->next = first = ACCESS_ONCE(head->first); +	} while (cmpxchg(&head->first, first, new_first) != first); -	return old_entry == NULL; +	return !first;  }  EXPORT_SYMBOL_GPL(llist_add_batch);  | 
