David S. Miller wrote:
On Tue, 22 Mar 2005 17:10:13 -0800 Andrew Morton <[EMAIL PROTECTED]> wrote:
Hugh Dickins <[EMAIL PROTECTED]> wrote:
On Tue, 22 Mar 2005, Luck, Tony wrote:
> > But I'm still confused by all the math on addr/end at each
> level.
You think the rest of us are not ;-?
umm, given the difficulty which you guys are having with this, I get a bit worried about clarity, simplicity and maintainability of the end result.
We're working on it, trust me :-)
I have a simplification in mind that should take care of the issue that led us to these problems. We should simply pass in "ceiling" as "-1" instead of "0". Every single test against ceiling is really done against "ceiling - 1".
Therefore, passing ceiling in as "top - 1" and then adjusting the tests will clean this up substantially and make is much simpler.
The ugly thing you get with an inclusive ceiling is that your masking becomes more difficult I think.
I might try to attack this from another angle and see if I can come up with something.
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