#include <linux/sysdev.h>
#include <linux/cpumask.h>
+#include <linux/workqueue.h>
struct node {
struct sys_device sysdev;
+
+#if defined(CONFIG_MEMORY_HOTPLUG_SPARSE) && defined(CONFIG_HUGETLBFS)
+ struct work_struct node_work;
+#endif
};
struct memory_block;