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Commit b12abaa1 authored by Konrad Rzeszutek Wilk's avatar Konrad Rzeszutek Wilk
Browse files

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: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
parent 27d8b207

arch/x86/xen/smp.c

+4 −10
Original line number Diff line number Diff line
@@ -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);

	}
@@ -436,6 +436,7 @@ 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);

	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);

}