Re: [rfc] [patch] mm: zone_reclaim fix for pseudo file systems

Andrew Morton
2007-07-31T08:35:14Z

On Tue, 31 Jul 2007 01:27:51 -0700 Ravikiran G Thirumalai <kiran@scalex86.org> wrote:

> >From what I can see with .21 and .22, going into reclaim is a problem rather
> than reclaim efficiency itself. Sure, if unreclaimable pages are not on LRU
> it would be good, but the main problem for my narrow eyes is going into
> reclaim when there are no reclaimable pages, and the fact that benchmark
> works as expected with the fixed arithmetic reinforces that impression.
>
> What am I missing?

The fact that is there are "no reclaimable pages" then the all_unreclaimable
logic should kick in and fix the problem.

Except zone_reclaim() fails to implement it.