Signed-off-by: liguang <lig.f...@cn.fujitsu.com>
---
kernel/task_work.c | 15 +++------------
1 files changed, 3 insertions(+), 12 deletions(-)
diff --git a/kernel/task_work.c b/kernel/task_work.c
index 65bd3c9..0bf4258 100644
--- a/kernel/task_work.c
+++ b/kernel/task_work.c
@@ -13,11 +13,12 @@ task_work_add(struct task_struct *task, struct
callback_head *work, bool notify)
head = ACCESS_ONCE(task->task_works);
if (unlikely(head == &work_exited))
return -ESRCH;
- work->next = head;
- } while (cmpxchg(&task->task_works, head, work) != head);
+ head = head->next;
+ } while (cmpxchg(&head, NULL, work) == head);
if (notify)
set_notify_resume(task);
+
return 0;
}
@@ -72,16 +73,6 @@ void task_work_run(void)
raw_spin_unlock_wait(&task->pi_lock);
smp_mb();
- /* Reverse the list to run the works in fifo order */
- head = NULL;
- do {
- next = work->next;
- work->next = head;
- head = work;
- work = next;
- } while (work);
-
- work = head;
do {
next = work->next;
work->func(work);
--
1.7.2.5
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