From fb78e58c275599a961557bca201dd897565833ca Mon Sep 17 00:00:00 2001
From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Date: Mon, 26 Aug 2013 14:28:50 -0400
Subject: [PATCH] Revert "xen/spinlock: Disable IRQ spinlock (PV) allocation on
 PVHVM"

This reverts commit 70dd4998cb85f0ecd6ac892cc7232abefa432efb.

Now that the bugs have been resolved we can re-enable the
PV ticketlock implementation under PVHVM Xen guests.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
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