Re: [PATCH 08/12] mm: fixup possible deadlock

[Andrew Morton]

On Thu, 05 Apr 2007 19:42:17 +0200
root@xxxxxxxxxxxxxxxxxxxxxxxxx wrote:

> When the threshol is in the order of the per cpu inaccuracies we can
> deadlock by not receiveing the updated count,

That explanation is a bit, umm, terse.

> introduce a more expensive
> but more accurate stat read function to use on low thresholds.

Looks like percpu_counter_sum().
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