Re: [PATCH 07/18] io_uring: support for IO polling

Jens Axboe [off-list ref] writes:

On 1/29/19 11:31 AM, Jens Axboe wrote:

quoted

quoted

The code looks a little clumsy to me.  Why not:

	while (!list_empty(&ctx->poll_list)) {
		int ret = io_do_iopoll(ctx, nr_events, min);
		if (ret)
			return ret;

		if (!min || *nr_events >= min)
			return 0;
	}

	return 1;

I think you messed up the 0/1 here, how about this:

	while (!list_empty(&ctx->poll_list)) {
		int ret;

		ret = io_do_iopoll(ctx, nr_events, min);
		if (ret < 0)
			return ret;
		if (!min || *nr_events >= min)
			return 1;
	}

	return 0;

Or I did... I think yours is correct.

maybe document the return code?  ;-)

-Jeff

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