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

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Date:	Wed, 03 Oct 2012 22:00:27 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	akpm@...ux-foundation.org
Cc:	linux-mm@...ck.org, sparclinux@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
	aarcange@...hat.com, hannes@...xchg.org, gerald.schaefer@...ibm.com
Subject: Re: [PATCH 0/8] THP support for Sparc64

From: Andrew Morton <akpm@...ux-foundation.org>
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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