Commit cbd287c0 authored by Jens Axboe's avatar Jens Axboe
Browse files

io_uring: io_async_buf_func() need not test page bit 



Since we don't do exclusive waits or wakeups, we know that the bit is
always going to be set. Kill the test. Also see commit:

2a9127fc ("mm: rewrite wait_on_page_bit_common() logic")

Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent e4cbce4d

fs/io_uring.c

+0 −4
Original line number Original line Diff line number Diff line
@@ -2965,10 +2965,6 @@ static int io_async_buf_func(struct wait_queue_entry *wait, unsigned mode, 
	if (!wake_page_match(wpq, key))

	if (!wake_page_match(wpq, key))

		return 0;

		return 0;





	/* Stop waking things up if the page is locked again */

	if (test_bit(key->bit_nr, &key->page->flags))

		return -1;



	list_del_init(&wait->entry);

	list_del_init(&wait->entry);





	init_task_work(&req->task_work, io_req_task_submit);

	init_task_work(&req->task_work, io_req_task_submit);