linux-kernel - Re: [RFC v4][PATCH 4/9] Memory management (dump)

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Date:	Wed, 10 Sep 2008 10:45:23 -0700
From:	Dave Hansen <dave@...ux.vnet.ibm.com>
To:	Oren Laadan <orenl@...columbia.edu>
Cc:	containers@...ts.linux-foundation.org, jeremy@...p.org,
	arnd@...db.de, linux-kernel@...r.kernel.org
Subject: Re: [RFC v4][PATCH 4/9] Memory management (dump)

On Wed, 2008-09-10 at 09:55 -0700, Dave Hansen wrote:
> 
> > +               cond_resched();
> > +               while (!(page = follow_page(vma, addr, FOLL_TOUCH))) 

Why is the FOLL_TOUCH required here?

-- Dave

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