[PATCH] KVM: Use boot_cpu_data instead of current_cpu_data

current_cpu_data invokes smp_processor_id(), which is inadvisable when
preemption is enabled. Switch to boot_cpu_data instead.

Resolves sourceforge bug 1621401.

Signed-off-by: Avi Kivity <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

drivers/kvm/svm.c

···
 {
 	uint32_t eax, ebx, ecx, edx;
 
-	if (current_cpu_data.x86_vendor != X86_VENDOR_AMD) {
+	if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD) {
 		printk(KERN_INFO "has_svm: not amd\n");
 		return 0;
 	}