Re: [Patch/RFC]Removing zone and node ID from page->flags[0/3]

[William Lee Irwin III]

On Thu, Sep 23, 2004 at 03:55:16PM -0700, Yasunori Goto wrote:
> I updated my patches which remove zone and node ID from page->flags.
> Page->flags is 32bit space and 19 bits of them have already been used on
> 2.6.9-rc2-mm2 kernel, and zone and node ID uses 8 bits on 32 archtecture.
> So, remaining bits is only 5 bits. In addition, only 3 bits have remained
> on 2.6.8.1 stock kernel.
> But, my patches make more 8 bits space in page->flags again.
> And kernel can use large number of node and types of zone.
> These patches are for 2.6.9-rc2-mm2. 

Looks relatively innocuous. I wonder if cosmetically we may want
s/struct zone_tbl/struct zone_table/

I like the path compression in the 2-level radix tree.

Thanks.


-- wli
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