Re: [PATCH 0/8] THP support for Sparc64

From: David Miller
Date: Wed Oct 03 2012 - 22:00:21 EST


From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Date: Tue, 2 Oct 2012 15:55:44 -0700

> I had a shot at integrating all this onto the pending stuff in linux-next.
> "mm: Add and use update_mmu_cache_pmd() in transparent huge page code."
> needed minor massaging in huge_memory.c. But as Andrea mentioned, we
> ran aground on Gerald's
> http://ozlabs.org/~akpm/mmotm/broken-out/thp-remove-assumptions-on-pgtable_t-type.patch,
> part of the thp-for-s390 work.

While working on a rebase relative to this work, I noticed that the
s390 patches don't even compile.

It's because of that pmd_pgprot() change from Peter Z. which arrives
asynchonously via the linux-next tree. It makes THP start using
pmd_pgprot() (a new interface) which the s390 patches don't provide.

It's going to require that I do new work for my sparc64 THP changes as
well.
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