Re: [PATCH 4/4] io_uring: flush task work before waiting for ring exit

[Oleg Nesterov <oleg@xxxxxxxxxx>]

On 04/07, Jens Axboe wrote:
>
> --- a/fs/io_uring.c
> +++ b/fs/io_uring.c
> @@ -7293,10 +7293,15 @@ static void io_ring_ctx_wait_and_kill(struct io_ring_ctx *ctx)
>  		io_wq_cancel_all(ctx->io_wq);
>  
>  	io_iopoll_reap_events(ctx);
> +	idr_for_each(&ctx->personality_idr, io_remove_personalities, ctx);
> +
> +	if (current->task_works != &task_work_exited)
> +		task_work_run();

this is still wrong, please see the email I sent a minute ago.

Oleg.