Re: [PATCH] set_pgdat_percpu_threshold() don't usefor_each_online_cpu

[Christoph Lameter]

On Mon, 15 Nov 2010, Mel Gorman wrote:

> With recent per-cpu allocator changes, are we guaranteed that the per-cpu
> structures exist and are valid?

We always guarantee that all per cpu areas for all possible cpus exist.
That has always been the case. There was a discussion about changing
that though. Could be difficult given the need for additional locking.


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