From 98b89b649fce39dacb9dc036d6d0fdb8caff73f7 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Fri, 9 Oct 2020 16:03:01 -0600 Subject: signal: kill JOBCTL_TASK_WORK It's no longer used, get rid of it. Signed-off-by: Jens Axboe --- kernel/signal.c | 20 -------------------- 1 file changed, 20 deletions(-) (limited to 'kernel/signal.c') 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 -- cgit