mtd: nand: fix the wrong mtd->type for nand chip
[linux-2.6-microblaze.git] / lib / llist.c
index 4a15115..4a70d12 100644 (file)
 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);