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

[Breno Leitao]

On Tue, May 07, 2024 at 03:44:54AM -0700, Breno Leitao wrote:
> Since we are now using WRITE_ONCE() in io_wq_worker, I am wondering if
> this is what we want to do?
> 
> 	WRITE_ONCE(worker->flags, (IO_WORKER_F_UP| IO_WORKER_F_RUNNING) << 1);

In fact, we can't clear flags here, so, more correct approach will be:

	WRITE_ONCE(worker->flags, READ_ONCE(worker->flags) | (IO_WORKER_F_UP | IO_WORKER_F_RUNNING) << 1);

Does it sound reasonable?

Thanks