| Date | Tue, 16 Jan 2007 12:10:38 -0800 (PST) | From | Christoph Lameter <> | Subject | Re: [RFC 0/8] Cpuset aware writeback |
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On Tue, 16 Jan 2007, Peter Zijlstra wrote:
> > B. We add a new counter NR_UNRECLAIMABLE that is subtracted > > from the available pages in a node. This allows us to > > accurately calculate the dirty ratio even if large portions > > of the node have been allocated for huge pages or for > > slab pages. > > What about mlock'ed pages?
mlocked pages can be dirty and written back right? So for the dirty ratio calculation they do not play a role. We may need a separate counter for mlocked pages if they are to be considered for other decisions in the VM.
> Otherwise it all looks good. > > Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
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