diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/signal.c | 20 |
1 files changed, 0 insertions, 20 deletions
diff --git a/kernel/signal.c b/kernel/signal.c index 923230ff6cfc..cf8b057ca2ac 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -2556,26 +2556,6 @@ bool get_signal(struct ksignal *ksig) relock: spin_lock_irq(&sighand->siglock); - /* - * Make sure we can safely read ->jobctl() in task_work add. As Oleg - * states: - * - * It pairs with mb (implied by cmpxchg) before READ_ONCE. So we - * roughly have - * - * task_work_add: get_signal: - * STORE(task->task_works, new_work); STORE(task->jobctl); - * mb(); mb(); - * LOAD(task->jobctl); LOAD(task->task_works); - * - * and we can rely on STORE-MB-LOAD [ in task_work_add]. - */ - smp_store_mb(current->jobctl, current->jobctl & ~JOBCTL_TASK_WORK); - if (unlikely(current->task_works)) { - spin_unlock_irq(&sighand->siglock); - task_work_run(); - goto relock; - } /* * Every stopped thread goes here after wakeup. Check to see if |