From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Date: Tue, 9 Apr 2013 00:56:35 +0000 (-0400)
Subject: xen/smp: Unifiy some of the PVs and PVHVM offline CPU path
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=b12abaa192c4340de50ddd86853b3583c255c449;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

xen/smp: Unifiy some of the PVs and PVHVM offline CPU path

The "xen_cpu_die" and "xen_hvm_cpu_die" are very similar.
Lets coalesce them.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
---

diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index 415694cc8584..0d466d7c7175 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -428,7 +428,7 @@ static int xen_cpu_disable(void)
 
 static void xen_cpu_die(unsigned int cpu)
 {
-	while (HYPERVISOR_vcpu_op(VCPUOP_is_up, cpu, NULL)) {
+	while (xen_pv_domain() && HYPERVISOR_vcpu_op(VCPUOP_is_up, cpu, NULL)) {
 		current->state = TASK_UNINTERRUPTIBLE;
 		schedule_timeout(HZ/10);
 	}
@@ -436,7 +436,8 @@ static void xen_cpu_die(unsigned int cpu)
 	unbind_from_irqhandler(per_cpu(xen_callfunc_irq, cpu), NULL);
 	unbind_from_irqhandler(per_cpu(xen_debug_irq, cpu), NULL);
 	unbind_from_irqhandler(per_cpu(xen_callfuncsingle_irq, cpu), NULL);
-	unbind_from_irqhandler(per_cpu(xen_irq_work, cpu), NULL);
+	if (!xen_hvm_domain())
+		unbind_from_irqhandler(per_cpu(xen_irq_work, cpu), NULL);
 	xen_uninit_lock_cpu(cpu);
 	xen_teardown_timer(cpu);
 }
@@ -667,14 +668,7 @@ static int __cpuinit xen_hvm_cpu_up(unsigned int cpu, struct task_struct *tidle)
 
 static void xen_hvm_cpu_die(unsigned int cpu)
 {
-	unbind_from_irqhandler(per_cpu(xen_resched_irq, cpu), NULL);
-	unbind_from_irqhandler(per_cpu(xen_callfunc_irq, cpu), NULL);
-	unbind_from_irqhandler(per_cpu(xen_debug_irq, cpu), NULL);
-	unbind_from_irqhandler(per_cpu(xen_callfuncsingle_irq, cpu), NULL);
-	if (!xen_hvm_domain())
-		unbind_from_irqhandler(per_cpu(xen_irq_work, cpu), NULL);
-	xen_uninit_lock_cpu(cpu);
-	xen_teardown_timer(cpu);
+	xen_cpu_die(cpu);
 	native_cpu_die(cpu);
 }