Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6

[linux-2.6-omap-h63xx.git] / arch / x86 / kernel / process_64.c

diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index ca80394ef5b80ebff3fb5fad35aec9d683a8b32c..c958120fb1b6f549f853a79a26864abeb38ceb24 100644 (file)
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -63,6 +63,13 @@ void idle_notifier_register(struct notifier_block *n)
 {
        atomic_notifier_chain_register(&idle_notifier, n);
 }
+EXPORT_SYMBOL_GPL(idle_notifier_register);
+
+void idle_notifier_unregister(struct notifier_block *n)
+{
+       atomic_notifier_chain_unregister(&idle_notifier, n);
+}
+EXPORT_SYMBOL_GPL(idle_notifier_unregister);
 
 void enter_idle(void)
 {
@@ -136,7 +143,7 @@ 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;
@@ -175,6 +182,9 @@ 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();
@@ -200,7 +210,7 @@ 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);
 }