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Date: Thu, 28 Aug 2014 12:50:12 -0400
From: Matthew Wilcox <willy@linux.intel.com>
To: Andy Lutomirski <luto@amacapital.net>
Cc: Andrew Morton <akpm@linux-foundation.org>,
        Matthew Wilcox <matthew.r.wilcox@intel.com>,
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Subject: Re: [PATCH v10 00/21] Support ext4 on NV-DIMMs
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On Wed, Aug 27, 2014 at 06:30:27PM -0700, Andy Lutomirski wrote:
> 4) No page faults ever once a page is writable (I hope -- I'm not sure
> whether this series actually achieves that goal).

I can't think of a circumstance in which you'd end up taking a page fault
after a writable mapping is established.

The next part to this series (that I'm working on now) is PMD support.