| 319,6 → 319,27 |
|---|
| }) |
| |
| /** |
| * list_next_or_null_rcu - get the first element from a list |
| * @head: the head for the list. |
| * @ptr: the list head to take the next element from. |
| * @type: the type of the struct this is embedded in. |
| * @member: the name of the list_head within the struct. |
| * |
| * Note that if the ptr is at the end of the list, NULL is returned. |
| * |
| * This primitive may safely run concurrently with the _rcu list-mutation |
| * primitives such as list_add_rcu() as long as it's guarded by rcu_read_lock(). |
| */ |
| #define list_next_or_null_rcu(head, ptr, type, member) \ |
| ({ \ |
| struct list_head *__head = (head); \ |
| struct list_head *__ptr = (ptr); \ |
| struct list_head *__next = READ_ONCE(__ptr->next); \ |
| likely(__next != __head) ? list_entry_rcu(__next, type, \ |
| member) : NULL; \ |
| }) |
| |
| /** |
| * list_for_each_entry_rcu - iterate over rcu list of given type |
| * @pos: the type * to use as a loop cursor. |
| * @head: the head for your list. |