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SubjectRe: [PATCH 07/10] mm: count reclaimable pages per BDI
On Fri, 20 Apr 2007 17:52:01 +0200 Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:

> Count per BDI reclaimable pages; nr_reclaimable = nr_dirty + nr_unstable.

hm. Aggregating dirty and unstable at inc/dec time is a bit kludgy. If
later on we want to know just "dirty" then we're in trouble.

I can see the logic behind it though.

Perhaps one could have separate BDI_DIRTY and BDI_UNSTABLE and treat them
separately at inc/dec time, but give them the same numerical value, so
they in fact refer to the same counter. That's kludgy too.
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