[PATCH RFC 3/4] xen: use lock-byte spinlock implementation

[Jeremy Fitzhardinge]

Switch to using the lock-byte spinlock implementation, to avoid the
worst of the performance hit from ticket locks.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>
Cc: Thomas Friebel <thomas.friebel@xxxxxxx>
---
 arch/x86/xen/smp.c |    1 +
 1 file changed, 1 insertion(+)

===================================================================
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -430,4 +430,5 @@
 {
 	smp_ops = xen_smp_ops;
 	xen_fill_possible_map();
+	paravirt_use_bytelocks();
 }

-- 

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