linux-kernel - Re: [PATCH] mm: move huge_pmd_set_accessed out of huge

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Message-ID: <20160421073050.GA32611@node.shutemov.name>
Date:	Thu, 21 Apr 2016 10:30:50 +0300
From:	"Kirill A. Shutemov" <kirill@...temov.name>
To:	"Shi, Yang" <yang.shi@...aro.org>
Cc:	akpm@...ux-foundation.org, kirill.shutemov@...ux.intel.com,
	aarcange@...hat.com, hughd@...gle.com, mgorman@...e.de,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	linaro-kernel@...ts.linaro.org
Subject: Re: [PATCH] mm: move huge_pmd_set_accessed out of huge_memory.c

On Wed, Apr 20, 2016 at 02:00:11PM -0700, Shi, Yang wrote:
> Hi folks,
> 
> I didn't realize pmd_* functions are protected by
> CONFIG_TRANSPARENT_HUGEPAGE on the most architectures before I made this
> change.
> 
> Before I fix all the affected architectures code, I want to check if you
> guys think this change is worth or not?
> 
> Thanks,
> Yang
> 
> On 4/20/2016 11:24 AM, Yang Shi wrote:
> >huge_pmd_set_accessed is only called by __handle_mm_fault from memory.c,
> >move the definition to memory.c and make it static like create_huge_pmd and
> >wp_huge_pmd.
> >
> >Signed-off-by: Yang Shi <yang.shi@...aro.org>

On pte side we have the same functionality open-coded. Should we do the
same for pmd? Or change pte side the same way?

-- 
 Kirill A. Shutemov