On Tue, Oct 23, 2007 at 10:20:17PM +0200, Jens Axboe wrote:
> On Tue, Oct 23 2007, Andi Kleen wrote:
> > Jens Axboe <[email protected]> writes:
> >
> > >> You might want to put a BUG_ON(page & 0x3); Make sure
> > >> you're not loosing information. (The m68k problem)
> > >
> > > That's a really good idea, thanks Boaz! I'll add that.
> >
> > It would be even better if you replaced all the magic numbers with defines
> > or better accessors.
>
> All? There are two numbers, and all are confined to scatterlist.h
> privately. Except the one in blk_rq_map_sg(), which was done on purpose
> since I don't want to export that knowledge to others. So we definitely
> don't want accessors, I can name the two bit values but don't see much
> point in doing it.
Maybe no point for you, but it would be helpful for any poor soul
who has to read/debug/change the code later.
Even if they're limited right now that doesn't mean it'll stay
that way anyways.
-Andi
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