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

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Jens Axboe <axboe@xxxxxxxxx> writes:

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