linux-kernel - Re: [RFC 1/9] mm/hugetlb: Make GENERAL_HUGETLB functions PGD implementation aware

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Date:	Mon, 14 Mar 2016 13:29:22 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Anshuman Khandual <khandual@...ux.vnet.ibm.com>
Cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	linuxppc-dev@...ts.ozlabs.org, hughd@...gle.com,
	aneesh.kumar@...ux.vnet.ibm.com, kirill@...temov.name,
	n-horiguchi@...jp.nec.com, mgorman@...hsingularity.net
Subject: Re: [RFC 1/9] mm/hugetlb: Make GENERAL_HUGETLB functions PGD
 implementation aware

On Fri, 11 Mar 2016 08:31:55 +0530 Anshuman Khandual <khandual@...ux.vnet.ibm.com> wrote:

> On 03/09/2016 05:40 PM, Anshuman Khandual wrote:
> > Currently both the ARCH_WANT_GENERAL_HUGETLB functions 'huge_pte_alloc'
> > and 'huge_pte_offset' dont take into account huge page implementation
> > at the PGD level. With addition of PGD awareness into these functions,
> > more architectures like POWER which also implements huge pages at PGD
> > level (along with PMD level), can use ARCH_WANT_GENERAL_HUGETLB option.
> 
> Hugh/Mel/Naoya/Andrew,
> 
> 	Thoughts/inputs/suggestions ? Does this change looks okay ?

Patches 1, 2 and 3 look OK to me.  Please include them in the powerpc
merge when the patchset is considered ready.