commit 8b8cd8a3673dd766428aee8222fa8fd3fdd26d58
author Boris Ostrovsky <boris.ostrovsky@oracle.com> Mon Dec 22 13:33:10 2014 -0500
committer David Vrabel <david.vrabel@citrix.com> Tue Dec 23 10:31:55 2014 +0000
tree f218d559b21e9e0e4fa7c5ffcc49c0be48e30dc6
parent f1d04b23b2015b4c3c0a8419677179b133afea08

x86/xen: Remove unnecessary BUG_ON(preemptible()) in xen_setup_timer()

There is no reason for having it and, with commit 250a1ac685f1 ("x86,
smpboot: Remove pointless preempt_disable() in
native_smp_prepare_cpus()"), it prevents HVM guests from booting.

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>

arch/x86/xen/time.c

diff --git a/arch/x86/xen/time.c b/arch/x86/xen/time.c
index f473d26..23019b4 100644
--- a/arch/x86/xen/time.c
+++ b/arch/x86/xen/time.c
@@ -458,8 +458,6 @@
 
 void xen_setup_cpu_clockevents(void)
 {
-	BUG_ON(preemptible());
-
 	clockevents_register_device(this_cpu_ptr(&xen_clock_events.evt));
 }