Re: [patch 0/5] refault distance-based file cache sizing

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On Tue,  1 May 2012 10:41:48 +0200
Johannes Weiner <hannes@xxxxxxxxxxx> wrote:

> This series stores file cache eviction information in the vacated page
> cache radix tree slots and uses it on refault to see if the pages
> currently on the active list need to have their status challenged.

So we no longer free the radix-tree node when everything under it has
been reclaimed?  One could create workloads which would result in a
tremendous amount of memory used by radix_tree_node_cachep objects.

So I assume these things get thrown away at some point.  Some
discussion about the life-cycle here would be useful.

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