Re: 2.6.26-rc: nfsd hangs for a few sec

[Christoph Lameter]

On Sun, 22 Jun 2008, Mel Gorman wrote:

> > Before the change we walk all zones of the zonelist.
> > 
> 
> Yeah, but the zonelist is for GFP_KERNEL so it should not include the HIGHMEM
> zones, right? The key change is that after the patch there are fewer zonelists
> than get filtered.

But the HIGHMEM zones etc were included before. There was no check for 
HIGHMEM etc there. The gfpmask was ignored.
 
> I think the effect of that patch is that zones get shrunk that have
> nothing to do with the requestors requirements. Right?

Right. AFAICT That was the behavior before the change.
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