Re: [Xen-devel] [PATCH] x86/mem_sharing: Rectify test for "empty" physmap entry in sharing_add_to_physmap

[Tim Deegan <tim@xxxxxxx>]

At 07:34 -0700 on 23 May (1337758450), Andres Lagar-Cavilla wrote:
> > At 08:55 -0700 on 17 May (1337244911), Andres Lagar-Cavilla wrote:
> >> # HG changeset patch
> >> # Parent 485cd11f131da88b286b3b64e8f095508b67ab0b
> >> x86/mem_sharing: Re-rectify sharing add to physmap hole test.
> >>
> >> Signed-off-by: Andres Lagar-Cavilla <andres@xxxxxxxxxxxxxxxx>
> >
> > Applied, thanks.  I gave it a slightly fuller description and fixed some
> > whitespace around parentheses on the way past.
> >
> > I think that empties the queue, at least of things that are wanted for
> > 4.2.
> 
> Actually, patch 6 of this series posted a while ago
> http://lists.xen.org/archives/html/xen-devel/2012-04/msg01364.html
> http://lists.xen.org/archives/html/xen-devel/2012-04/msg00962.html
> 
> turns on locking p2m queries for shadow mode and seemingly you've acked
> it. This is good to go afaict and would be a shame to be left off of 4.2.

I think I'll leave it out for now.  Shadow doesn't coexist with
paging/sharing/memattr and already has its own interlocks against
everything else so it's not a bugfix.

Cheers,

Tim.

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