On Mon, 6 Mar 2000, Andrea Arcangeli wrote:
> I think the >512 sector request handling should be done with a precise
> field in the request that is declared as clobbered (req->sector should
> remains read_only, writeable only by the highlevel layer in the common
> usage). A new req->driver_sector will be set by the highlevel layer always
> correctly (also from end_request) and the lowlevel layer can
> advance/overwrite it to do the larger block handling.
Ouch... Yes, we can do that, but... Is it really worth the trouble? Let's
see: it will move the 'sector-skipping' code from error path to the main
one (modulo names of fields) and will leave us with the things we are
already doing in the 99% of drivers. Who else (aside of end_request())
needs to know ->sector of request under IO?
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