Re: [RFC] SLUB - define OO_ macro instead of hardcoded numbers

From: Christoph Lameter
Date: Wed Oct 22 2008 - 14:46:29 EST

On Wed, 22 Oct 2008, Cyrill Gorcunov wrote:

Looks really good for me (if it worth anything). But Christoph
doesn't OO_SHIT inspired by u16 too which means we could use
MAX_OBJ_PER_PAGE in form you mentoined but maybe we should define

#define OO_SHIFT bits_in(page.objects) to point out why we use
16 not 14, not 18 or whatever? How do you think?

The choice of the bit size in page.objects is determined by the available bytes there. The choice of the OO_SHIFT (nice typo there) is determined by the use of a 32bit int that we want to cut into two halves.

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