[Xen-devel] [PATCH 0/9] qspinlock stuff -v15

Peter Zijlstra
Thu, 19 Mar 2015 18:32:20 -0000

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.

Thanks!

> 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.