- ((struct thread_info *) kmalloc(THREAD_SIZE, GFP_KERNEL))
-#define free_thread_info(ti) kfree(ti)
+ ((struct thread_info *) __get_free_pages(GFP_KERNEL, \
+ CONFIG_KERNEL_STACK_ORDER))
+#endif
+
+#define free_thread_info(ti) \
+ free_pages((unsigned long)(ti),CONFIG_KERNEL_STACK_ORDER)