Re: [PATCH 12/28] readahead: state based method - aging accounting

[Christoph Lameter]

On Wed, 15 Nov 2006, Wu Fengguang wrote:

> Collect info about the global available memory and its consumption speed.
> The data are used by the stateful method to estimate the thrashing threshold.

Looks like you should use a ZVC counter for total scanned. See 
include/linux/mmzone.h.
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