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Date:	Thu, 19 Mar 2015 19:32:20 +0100
From:	Peter Zijlstra <>
To:	David Vrabel <>
Subject: Re: [Xen-devel] [PATCH 0/9] qspinlock stuff -v15

On Thu, Mar 19, 2015 at 06:01:34PM +0000, David Vrabel wrote:
> This seems work for me, but I've not got time to give it a more thorough
> testing.
> You can fold this into your series.


> There doesn't seem to be a way to disable QUEUE_SPINLOCKS when supported by
> the arch, is this intentional?  If so, the existing ticketlock code could go.

Yeah, its left as a rudiment such that if we find issues with the
qspinlock code we can 'revert' with a trivial patch. If no issues show
up we can rip out all the old code in a subsequent release.
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