diff options
| -rw-r--r-- | fs/io-wq.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/fs/io-wq.h b/fs/io-wq.h index 41bf37674a49..3709b7c5ec98 100644 --- a/fs/io-wq.h +++ b/fs/io-wq.h @@ -52,6 +52,28 @@ static inline void wq_list_add_after(struct io_wq_work_node *node, list->last = node; } +/** + * wq_list_merge - merge the second list to the first one. + * @list0: the first list + * @list1: the second list + * Return the first node after mergence. + */ +static inline struct io_wq_work_node *wq_list_merge(struct io_wq_work_list *list0, + struct io_wq_work_list *list1) +{ + struct io_wq_work_node *ret; + + if (!list0->first) { + ret = list1->first; + } else { + ret = list0->first; + list0->last->next = list1->first; + } + INIT_WQ_LIST(list0); + INIT_WQ_LIST(list1); + return ret; +} + static inline void wq_list_add_tail(struct io_wq_work_node *node, struct io_wq_work_list *list) { |