On Tue, 24 Nov 2015, Michal Hocko wrote: > From: Michal Hocko <[email protected]> > > zone_reclaimable_pages counts how many pages are reclaimable in > the given zone. This currently includes all pages on file lrus and > anon lrus if there is an available swap storage. We do not consider > NR_ISOLATED_{ANON,FILE} counters though which is not correct because > these counters reflect temporarily isolated pages which are still > reclaimable because they either get back to their LRU or get freed > either by the page reclaim or page migration. > > The number of these pages might be sufficiently high to confuse users of > zone_reclaimable_pages (e.g. mbind can migrate large ranges of memory at > once). > > Suggested-by: Johannes Weiner <[email protected]> > Signed-off-by: Michal Hocko <[email protected]>
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