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SubjectRe: [PATCH 01/11] mm,migration: Take a reference to the anon_vma before migrating
On Wed, 17 Mar 2010, Mel Gorman wrote:

> This is true, but I don't think such a change belongs in this patch
> series. If this series gets merged, then it would be sensible to investigate
> if refcounting anon_vma is a good idea or would it be a bouncing write-shared
> cacheline mess.

SLAB_DESTROY_BY_RCU is there to avoid the cooling of hot cachelines by

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