Re: [PATCH] io_uring/io-wq: Use set_bit() and test_bit() at worker->flags

From: Jens Axboe
Date: Fri May 03 2024 - 14:41:49 EST


On 5/3/24 11:37 AM, Breno Leitao wrote:
> @@ -631,7 +631,8 @@ static int io_wq_worker(void *data)
> bool exit_mask = false, last_timeout = false;
> char buf[TASK_COMM_LEN];
>
> - worker->flags |= (IO_WORKER_F_UP | IO_WORKER_F_RUNNING);
> + set_bit(IO_WORKER_F_UP, &worker->flags);
> + set_bit(IO_WORKER_F_RUNNING, &worker->flags);

You could probably just use WRITE_ONCE() here with the mask, as it's
setup side.

--
Jens Axboe