Re: [PATCH 06/15] mm: remove ppc highpte

[Paul Mackerras]

Hugh Dickins writes:

> ppc's HIGHPTE config option was removed in 2.5.28, and nobody seems to
> have wanted it enough to restore it: so remove its traces from pgtable.h
> and pte_alloc_one.  Or supply an alternative patch to config it back?

I'm staggered.  We do want to be able to have pte pages in highmem.
I would rather just have it always enabled if CONFIG_HIGHMEM=y, rather
than putting the config option back.  I think that should just involve
adding __GFP_HIGHMEM to the flags for alloc_pages in pte_alloc_one
unconditionally, no?

Paul.

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