include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit...
[safe/jmp/linux-2.6] / arch / x86 / xen / smp.c
index 429834e..a29693f 100644 (file)
@@ -14,6 +14,7 @@
  */
 #include <linux/sched.h>
 #include <linux/err.h>
+#include <linux/slab.h>
 #include <linux/smp.h>
 
 #include <asm/paravirt.h>
 
 cpumask_var_t xen_cpu_initialized_map;
 
-static DEFINE_PER_CPU(int, resched_irq);
-static DEFINE_PER_CPU(int, callfunc_irq);
-static DEFINE_PER_CPU(int, callfuncsingle_irq);
-static DEFINE_PER_CPU(int, debug_irq) = -1;
+static DEFINE_PER_CPU(int, xen_resched_irq);
+static DEFINE_PER_CPU(int, xen_callfunc_irq);
+static DEFINE_PER_CPU(int, xen_callfuncsingle_irq);
+static DEFINE_PER_CPU(int, xen_debug_irq) = -1;
 
 static irqreturn_t xen_call_function_interrupt(int irq, void *dev_id);
 static irqreturn_t xen_call_function_single_interrupt(int irq, void *dev_id);
@@ -73,7 +74,7 @@ static __cpuinit void cpu_bringup(void)
 
        xen_setup_cpu_clockevents();
 
-       cpu_set(cpu, cpu_online_map);
+       set_cpu_online(cpu, true);
        percpu_write(cpu_state, CPU_ONLINE);
        wmb();
 
@@ -103,7 +104,7 @@ static int xen_smp_intr_init(unsigned int cpu)
                                    NULL);
        if (rc < 0)
                goto fail;
-       per_cpu(resched_irq, cpu) = rc;
+       per_cpu(xen_resched_irq, cpu) = rc;
 
        callfunc_name = kasprintf(GFP_KERNEL, "callfunc%d", cpu);
        rc = bind_ipi_to_irqhandler(XEN_CALL_FUNCTION_VECTOR,
@@ -114,7 +115,7 @@ static int xen_smp_intr_init(unsigned int cpu)
                                    NULL);
        if (rc < 0)
                goto fail;
-       per_cpu(callfunc_irq, cpu) = rc;
+       per_cpu(xen_callfunc_irq, cpu) = rc;
 
        debug_name = kasprintf(GFP_KERNEL, "debug%d", cpu);
        rc = bind_virq_to_irqhandler(VIRQ_DEBUG, cpu, xen_debug_interrupt,
@@ -122,7 +123,7 @@ static int xen_smp_intr_init(unsigned int cpu)
                                     debug_name, NULL);
        if (rc < 0)
                goto fail;
-       per_cpu(debug_irq, cpu) = rc;
+       per_cpu(xen_debug_irq, cpu) = rc;
 
        callfunc_name = kasprintf(GFP_KERNEL, "callfuncsingle%d", cpu);
        rc = bind_ipi_to_irqhandler(XEN_CALL_FUNCTION_SINGLE_VECTOR,
@@ -133,19 +134,20 @@ static int xen_smp_intr_init(unsigned int cpu)
                                    NULL);
        if (rc < 0)
                goto fail;
-       per_cpu(callfuncsingle_irq, cpu) = rc;
+       per_cpu(xen_callfuncsingle_irq, cpu) = rc;
 
        return 0;
 
  fail:
-       if (per_cpu(resched_irq, cpu) >= 0)
-               unbind_from_irqhandler(per_cpu(resched_irq, cpu), NULL);
-       if (per_cpu(callfunc_irq, cpu) >= 0)
-               unbind_from_irqhandler(per_cpu(callfunc_irq, cpu), NULL);
-       if (per_cpu(debug_irq, cpu) >= 0)
-               unbind_from_irqhandler(per_cpu(debug_irq, cpu), NULL);
-       if (per_cpu(callfuncsingle_irq, cpu) >= 0)
-               unbind_from_irqhandler(per_cpu(callfuncsingle_irq, cpu), NULL);
+       if (per_cpu(xen_resched_irq, cpu) >= 0)
+               unbind_from_irqhandler(per_cpu(xen_resched_irq, cpu), NULL);
+       if (per_cpu(xen_callfunc_irq, cpu) >= 0)
+               unbind_from_irqhandler(per_cpu(xen_callfunc_irq, cpu), NULL);
+       if (per_cpu(xen_debug_irq, cpu) >= 0)
+               unbind_from_irqhandler(per_cpu(xen_debug_irq, cpu), NULL);
+       if (per_cpu(xen_callfuncsingle_irq, cpu) >= 0)
+               unbind_from_irqhandler(per_cpu(xen_callfuncsingle_irq, cpu),
+                                      NULL);
 
        return rc;
 }
@@ -236,6 +238,7 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle)
        ctxt->user_regs.ss = __KERNEL_DS;
 #ifdef CONFIG_X86_32
        ctxt->user_regs.fs = __KERNEL_PERCPU;
+       ctxt->user_regs.gs = __KERNEL_STACK_CANARY;
 #else
        ctxt->gs_base_kernel = per_cpu_offset(cpu);
 #endif
@@ -294,6 +297,7 @@ static int __cpuinit xen_cpu_up(unsigned int cpu)
                (unsigned long)task_stack_page(idle) -
                KERNEL_STACK_OFFSET + THREAD_SIZE;
 #endif
+       xen_setup_runstate_info(cpu);
        xen_setup_timer(cpu);
        xen_init_lock_cpu(cpu);
 
@@ -347,10 +351,10 @@ static void xen_cpu_die(unsigned int cpu)
                current->state = TASK_UNINTERRUPTIBLE;
                schedule_timeout(HZ/10);
        }
-       unbind_from_irqhandler(per_cpu(resched_irq, cpu), NULL);
-       unbind_from_irqhandler(per_cpu(callfunc_irq, cpu), NULL);
-       unbind_from_irqhandler(per_cpu(debug_irq, cpu), NULL);
-       unbind_from_irqhandler(per_cpu(callfuncsingle_irq, cpu), NULL);
+       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);
        xen_uninit_lock_cpu(cpu);
        xen_teardown_timer(cpu);
 
@@ -358,7 +362,7 @@ static void xen_cpu_die(unsigned int cpu)
                alternatives_smp_switch(0);
 }
 
-static void __cpuinit xen_play_dead(void) /* used only with CPU_HOTPLUG */
+static void __cpuinit xen_play_dead(void) /* used only with HOTPLUG_CPU */
 {
        play_dead_common();
        HYPERVISOR_vcpu_op(VCPUOP_down, smp_processor_id(), NULL);