Re: [PATCH 2.6.21-rc1-mm1] add check_highest_zone tobuild_zonelists_in_zone_order

From: KAMEZAWA Hiroyuki
Date: Wed May 16 2007 - 21:05:32 EST


On Wed, 16 May 2007 15:57:39 -0400
Lee Schermerhorn <Lee.Schermerhorn@xxxxxx> wrote:

>
> [PATCH 2.6.21-rc1-mm1] add check_highest_zone to build_zonelists_in_zone_order
>
> We missed this in the "change zone order" series. We need to record
> the highest populated zone, just as build_zonelists_node() does.
> Memory policies apply only to this zone. Without this, we'll be
> applying policy to all zones, including DMA, I think. Not having
> thought about it much, I can't claim to understand the downside of
> doing so.
>
> Also, display selected "policy zone" during boot or reconfig
> of zonelist order, if 'NUMA. Inquiring minds [might] want to know...
>
> Cleanup: remove stale comment in set_zonelist_order()
>
> Signed-off-by: Lee Schermerhorn <lee.schermerhorn@xxxxxx>
>
Acked-By: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>

-Kame

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