#include <linux/sched.h>
#include <linux/math64.h>
#include <linux/writeback.h>
+#include <linux/compaction.h>
#ifdef CONFIG_VM_EVENT_COUNTERS
DEFINE_PER_CPU(struct vm_event_state, vm_event_states) = {{0}};
#endif
#ifdef CONFIG_COMPACTION
+
struct contig_page_info {
unsigned long free_pages;
unsigned long free_blocks_total;