powerpc/kgdb: use DEFINE_PER_CPU to allocate kgdb's thread_info

	return 1;

}

static DEFINE_PER_CPU(struct thread_info, kgdb_thread_info);

static int kgdb_singlestep(struct pt_regs *regs)

{

	struct thread_info *thread_info, *exception_thread_info;

	struct thread_info *backup_current_thread_info;

	struct thread_info *backup_current_thread_info =

		&__get_cpu_var(kgdb_thread_info);

	if (user_mode(regs))

		return 0;

	backup_current_thread_info = kmalloc(sizeof(struct thread_info), GFP_KERNEL);

	/*

	 * On Book E and perhaps other processors, singlestep is handled on

	 * the critical exception stack.  This causes current_thread_info()

		/* Restore current_thread_info lastly. */

		memcpy(exception_thread_info, backup_current_thread_info, sizeof *thread_info);

	kfree(backup_current_thread_info);

	return 1;

}