linux-kernel - Re: [rfc][patch] reimplement nopfn callers with fault

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Date:	Wed, 16 Jan 2008 10:03:02 +0100
From:	Nick Piggin <npiggin@...e.de>
To:	Jes Sorensen <jes@....com>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Cliff Wickman <cpw@....com>, airlied@...ux.ie,
	benh@...nel.crashing.org, michael@...erman.id.au, jk@...abs.org,
	Cedric Le Goater <clg@...ibm.com>
Subject: Re: [rfc][patch] reimplement nopfn callers with fault

On Mon, Jan 14, 2008 at 10:14:46AM +0100, Jes Sorensen wrote:
> Nick Piggin wrote:
> >On Fri, Jan 11, 2008 at 03:40:10PM +0100, Jes Sorensen wrote:
> >>Nick,
> >>
> >>Is this supposed to apply to the latest Linus tree? I applied it here
> >>and the mspec driver lights up in beautiful fireworks :-( I'll give the
> >>-mm tree a try next.
> >
> >Hi Jes,
> >
> >(reply to all this time).
> >
> >It is the BUG_ON(vma->vm_flags & VM_PFNMAP); at the start of __do_fault, by
> >the looks. That should be simply removed. Sorry about that.
> 
> Hi Nick,
> 
> Ok, I pulled that line and now mspec is working as expected for me.
> I'll throw in an ACK for your patch then.
> 
> Acked-by: Jes Sorensen <jes@....com>

Thanks very much for testing that. Given that the concept seems to be
sound, I'll send the patch to -mm.
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