Re: [PATCH] change global zonelist order on NUMA v2

Christoph Lameter
2007-04-26T22:07:14Z

On Thu, 26 Apr 2007, Lee Schermerhorn wrote:

> Against 2.6.21-rc7 atop KAMEZAWA Hiroyuki's "change global zonelist
> order on NUMA v2" patch.

Hmmm.. hmmm... serious hackery here. Isnt there some way to simplify the
core impact and make the arch select a strategy? A boot option would be
less impact (I am a bit concerned about switching zonelist mid stream).

The arch should be able to specify a default zone order. So the best thing
would be to make the zone orders configurable in the page allocator and
then have the arch code determine a default order depending on the
hardware that we are running on.

Make sure that the !CONFIG_ZONE_DMA case works.

What about ZONE_DMA32 support?