Merge branches 'topic/fix/asoc', 'topic/fix/hda', 'topic/fix/misc' and 'topic/pci...

[cascardo/linux.git] / arch / x86 / kernel / process_64.c

diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index b6b508e..cd8c0ed 100644 (file)
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -86,30 +86,12 @@ void exit_idle(void)
        __exit_idle();
 }
 
-#ifdef CONFIG_HOTPLUG_CPU
-DECLARE_PER_CPU(int, cpu_state);
-
-#include <linux/nmi.h>
-/* We halt the CPU with physical CPU hotplug */
-static inline void play_dead(void)
-{
-       idle_task_exit();
-       c1e_remove_cpu(raw_smp_processor_id());
-
-       mb();
-       /* Ack it */
-       __get_cpu_var(cpu_state) = CPU_DEAD;
-
-       local_irq_disable();
-       /* mask all interrupts, flush any and all caches, and halt */
-       wbinvd_halt();
-}
-#else
+#ifndef CONFIG_SMP
 static inline void play_dead(void)
 {
        BUG();
 }
-#endif /* CONFIG_HOTPLUG_CPU */
+#endif
 
 /*
  * The idle thread. There's no useful work to be
@@ -154,7 +136,7 @@ void cpu_idle(void)
 }
 
 /* Prints also some state that isn't saved in the pt_regs */
-void __show_regs(struct pt_regs *regs)
+void __show_regs(struct pt_regs *regs, int all)
 {
        unsigned long cr0 = 0L, cr2 = 0L, cr3 = 0L, cr4 = 0L, fs, gs, shadowgs;
        unsigned long d0, d1, d2, d3, d6, d7;
@@ -193,6 +175,9 @@ void __show_regs(struct pt_regs *regs)
        rdmsrl(MSR_GS_BASE, gs);
        rdmsrl(MSR_KERNEL_GS_BASE, shadowgs);
 
+       if (!all)
+               return;
+
        cr0 = read_cr0();
        cr2 = read_cr2();
        cr3 = read_cr3();
@@ -218,7 +203,7 @@ void __show_regs(struct pt_regs *regs)
 void show_regs(struct pt_regs *regs)
 {
        printk(KERN_INFO "CPU %d:", smp_processor_id());
-       __show_regs(regs);
+       __show_regs(regs, 1);
        show_trace(NULL, regs, (void *)(regs + 1), regs->bp);
 }