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