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 415694c..0d466d7 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -428,7 +428,7 @@
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 @@
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 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);
}