Re: [PATCH] sector_t overflow in block layer

[Pavel Machek]

Hi!

> > Why isn't that just a 
> > 
> > 	if (unlikely(sector != (sector_t)sector))
> > 
> > and that's it? What does this have to do with CONFIG_LBD or BITS_PER_LONG, 
> > or anything at all?
> > 
> > If the sector number fits in a sector_t, we're all good.
> 
> I think you missed that Andrewas said he is worried about 64-bit overflows 
> as well.  And you would not catch those with the sector != 

Can 64-bit really overflow? That's 16 000 Peta bytes, AFAICS. Does
anyone really have disk array over 100 Peta bytes? How much space does
Google have, for example?
								Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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