From 526320056a811cd269e0620dc11fc59e58bdad08 Mon Sep 17 00:00:00 2001
From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Date: Wed, 21 Mar 2012 13:03:45 -0400
Subject: [PATCH] --- yaml --- r: 295499 b: refs/heads/master c:
 106b44388d8f76373149c4ea144f717b6d4d9a6d h: refs/heads/master i:   295497:
 56c503d8cd7ddca57c05a92606f7c7d1250e51f8   295495:
 6e070c0041ea7941e3a84b45eb1f73ea1ed2340a v: v3

---
 [refs]                   | 2 +-
 trunk/arch/x86/xen/smp.c | 6 ++++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index b5d8aa619d8b..50ba541c8a18 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 27257fc07c044af99d85400c4bab670342bbc8a5
+refs/heads/master: 106b44388d8f76373149c4ea144f717b6d4d9a6d
diff --git a/trunk/arch/x86/xen/smp.c b/trunk/arch/x86/xen/smp.c
index 449f86897db3..240def438dc3 100644
--- a/trunk/arch/x86/xen/smp.c
+++ b/trunk/arch/x86/xen/smp.c
@@ -75,8 +75,14 @@ static void __cpuinit cpu_bringup(void)
 
 	xen_setup_cpu_clockevents();
 
+	notify_cpu_starting(cpu);
+
+	ipi_call_lock();
 	set_cpu_online(cpu, true);
+	ipi_call_unlock();
+
 	this_cpu_write(cpu_state, CPU_ONLINE);
+
 	wmb();
 
 	/* We can take interrupts now: we're officially "up". */