From mboxrd@z Thu Jan  1 00:00:00 1970
From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Subject: Re: Re: [PATCH v6] Userspace grant communication
Date: Mon, 14 Feb 2011 14:21:55 -0500
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> >> And besides the two questions I posted today they look OK to me. However
> > 
> > Oh, and Jeremy's comment about the WARN_ON on the copy_to_user..
> > 
> 
> I did post an updated version of that patch without the bad WARN_ON. It still
> resolves to a WARN_ON in all paths, but it's at a higher level.

Ah there it is. 

Look in git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen.git stable/gntalloc.v6

[maybe in an hour - git.kernel.org takes a bit of time to resync to the mirrors]
to see if I am missing anything please.