Am Montag, 18. Juni 2007 schrieb Alan Stern:
> On Mon, 18 Jun 2007, Oliver Neukum wrote:
>
> > Hi,
> >
> > I am looking at usb_sg_init().
>
> > In essence this leaves handling a persistent failure to the generic
> > scsi layer, which will timeout and abort the request. Is there any objection
> > to report the URB where it failed to the immediate user and let him
> > retry the remainder or handle the error any other way?
> > I dimly remember discussing this routine in the past.
>
> You could make usb_sg_wait just wait until the part already submitted
> was finished, then go back and retry the remainder. I think that would
> be simpler.
It does retry continously, so it'll retry when the earlier URBs are completed.
Maybe you are right and at some place we must trust the mm to keep a
sufficient reserve.
Regards
Oliver
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