Re: [PATCH] 2.5.30 IDE 113

From: Jens Axboe (
Date: Tue Aug 06 2002 - 05:54:50 EST

On Tue, Aug 06 2002, Marcin Dalecki wrote:
> Uz.ytkownik Jens Axboe napisa?:
> >On Tue, Aug 06 2002, Marcin Dalecki wrote:
> >
> >>device not per channel! If q->request_fn would properly return the
> >>error count instead of void, we could even get rid ot the
> >>checking for rq->errors after finishment... But well that's
> >>entierly different story.
> >
> >
> >That's nonsense! What exactly would you return from a request_fn after
> >having queued, eg, 20 commands? Error count is per request, anything
> >else would be stupid.
> Returning the error count in the case q->request_fn is called for
> a self submitted request like for example REQ_SPECIAL would be handy and
> well defined. For the cumulative case it would of course make sense to
> return the cumulative error count. Tough not very meaningfull, it would
> indicate the occurrence of the error very fine.

It's much nicer to maintain a sane API that doesn't depend on stuff like
the above. Cumulative error count, come on, you can't possibly be

Jens Axboe

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