linux-kernel - Re: [PATCH 6/6] pagemap: introduce data structure for pagemap entry

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Message-Id: <20120210095919.b6236781.kamezawa.hiroyu@jp.fujitsu.com>
Date:	Fri, 10 Feb 2012 09:59:19 +0900
From:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Naoya Horiguchi <n-horiguchi@...jp.nec.com>, linux-mm@...ck.org,
	David Rientjes <rientjes@...gle.com>,
	Andi Kleen <andi@...stfloor.org>,
	Wu Fengguang <fengguang.wu@...el.com>,
	Andrea Arcangeli <aarcange@...hat.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 6/6] pagemap: introduce data structure for pagemap entry

On Thu, 9 Feb 2012 16:27:41 -0800
Andrew Morton <akpm@...ux-foundation.org> wrote:

> On Wed,  8 Feb 2012 10:51:42 -0500
> Naoya Horiguchi <n-horiguchi@...jp.nec.com> wrote:
> 
> > Currently a local variable of pagemap entry in pagemap_pte_range()
> > is named pfn and typed with u64, but it's not correct (pfn should
> > be unsigned long.)
> > This patch introduces special type for pagemap entry and replace
> > code with it.
> > 
> > Signed-off-by: Naoya Horiguchi <n-horiguchi@...jp.nec.com>
> > Cc: Andrew Morton <akpm@...ux-foundation.org>
> > 
> > Changes since v4:
> >   - Rename pme_t to pagemap_entry_t
> 
> hm.  Why this change?  I'd have thought that this should be called
> pme_t.  And defined in or under pgtable.h, rather than being private to
> fs/proc/task_mmu.c.
> 

Ah, he changed the name because I complained "pme_t seems a new page table entry
type.." 

Regards,
-Kame

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