4.12-rc ppc64 4k-page needs costly allocations

[Christoph Lameter]

On Thu, 1 Jun 2017, Hugh Dickins wrote:

> SLUB versus SLAB, cpu versus memory?  Since someone has taken the
> trouble to write it with ctors in the past, I didn't feel on firm
> enough ground to recommend such a change.  But it may be obvious
> to someone else that your suggestion would be better (or worse).

Umm how about using alloc_pages() for pageframes?