Subject: Re: PTRTOINT64() / INT64TOPTR()
To: Christos Zoulas <christos@zoulas.com>
From: Andrew Brown <atatat@atatdot.net>
List: tech-kern
Date: 02/18/2004 23:38:15
>>i also find it vaguely curious that there's no INT64TOPTR() macro
>>anywhere...

ah.  found where i got this idea from.  hee!

>I don't think this is implementable in ILP32 machines. How are you
>planning to fit 64 bits in a 32 bit pointer? Zip it? Use more than
>one pointer? Trash memory? :-)

truncate and hope for the best.  mostly it'll work.  those cases where
it doesn't are clearly problems for people running 32 bit apps on 64
kernels, but i don't think there *is* a right answer for those people.
in those cases.

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