io_uring: remove unused park_task_work

As sqpoll cancel via task_work is killed, remove everything related to
park_task_work as it's not used anymore.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/310d8b76a2fbbf3e139373500e04ad9af7ee3dbb.1621201931.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov 2021-05-16 22:58:02 +01:00 committed by Jens Axboe
parent aaa9f0f481
commit 21f2fc080f

View File

@ -288,7 +288,6 @@ struct io_sq_data {
unsigned long state;
struct completion exited;
struct callback_head *park_task_work;
};
#define IO_IOPOLL_BATCH 8
@ -6834,7 +6833,6 @@ static bool io_sqd_handle_event(struct io_sq_data *sqd)
mutex_lock(&sqd->lock);
}
io_run_task_work();
io_run_task_work_head(&sqd->park_task_work);
return did_sig || test_bit(IO_SQ_THREAD_SHOULD_STOP, &sqd->state);
}
@ -6856,9 +6854,6 @@ static int io_sq_thread(void *data)
current->flags |= PF_NO_SETAFFINITY;
mutex_lock(&sqd->lock);
/* a user may had exited before the thread started */
io_run_task_work_head(&sqd->park_task_work);
while (1) {
int ret;
bool cap_entries, sqt_spin, needs_sched;
@ -6919,7 +6914,6 @@ static int io_sq_thread(void *data)
}
finish_wait(&sqd->wait, &wait);
io_run_task_work_head(&sqd->park_task_work);
timeout = jiffies + sqd->sq_thread_idle;
}
@ -6928,7 +6922,6 @@ static int io_sq_thread(void *data)
list_for_each_entry(ctx, &sqd->ctx_list, sqd_list)
io_ring_set_wakeup_flag(ctx);
io_run_task_work();
io_run_task_work_head(&sqd->park_task_work);
mutex_unlock(&sqd->lock);
complete(&sqd->exited);