1 files changed, 92 insertions, 0 deletions
diff --git a/include/linux/kmempagerecorder.h b/include/linux/kmempagerecorder.h
new file mode 100644
index 00000000..c9e67e0c
--- /dev/null
+++ b/include/linux/kmempagerecorder.h
@@ -0,0 +1,92 @@
+#ifndef KMEMPAGERECORDER
+#include <linux/types.h>
+#define OBJECT_TABLE_SIZE      1543
+#define BACKTRACE_SIZE 10
+#define BACKTRACE_LEVEL 10
+/* 2^31 + 2^29 - 2^25 + 2^22 - 2^19 - 2^16 + 1 */
+#define GOLDEN_RATIO_PRIME_32 0x9e370001UL
+
+typedef enum {
+	NODE_PAGE_RECORD,
+	NODE_PAGE_MAX
+} PAGE_RECORD_TYPE;
+
+typedef enum {
+	HASH_PAGE_NODE_KERNEL_BACKTRACE,
+	HASH_PAGE_NODE_KERNEL_SYMBOL,
+	HASH_PAGE_NODE_KERNEL_PAGE_ALLOC_BACKTRACE,
+	HASH_PAGE_NODE_MAX
+} PAGE_HASH_NODE_TYPE;
+
+/* 	for BT	*/
+typedef struct PageObjectEntry {
+	size_t slot;
+	struct PageObjectEntry *prev;
+	struct PageObjectEntry *next;
+	size_t numEntries;
+	size_t reference;
+	unsigned int size;
+	void *object[0];
+} PageObjectEntry, *PPageObjectEntry;
+
+typedef struct {
+	size_t count;
+	PageObjectEntry *slots[OBJECT_TABLE_SIZE];
+} PageObjectTable, *PPageObjectTable;
+
+typedef struct page_BT {
+	unsigned int numEntries;
+	void *backtrace[0];
+} page_BT, *page_PBT;
+
+/* 	for page	*/
+typedef struct PageHashEntry {
+	void *page;
+	unsigned int size;
+	struct PageHashEntry *prev;
+	struct PageHashEntry *next;
+	PPageObjectEntry allocate_map_entry;
+	PPageObjectEntry bt_entry;
+	page_PBT free_bt;
+	unsigned int flag;
+} PageHashEntry, *PPageHashEntry;
+
+typedef struct {
+	size_t count;
+	size_t table_size;
+	PageHashEntry *page_hash_table[OBJECT_TABLE_SIZE];
+} PageHashTable;
+
+struct page_mapping {
+	char *name;
+	unsigned int address;
+	unsigned int size;
+};
+
+typedef struct page_record_param {
+	unsigned int *page;
+	unsigned int address_type;
+	unsigned int address;
+	unsigned int length;
+	unsigned int backtrace[BACKTRACE_SIZE];
+	unsigned int backtrace_num;
+	unsigned int kernel_symbol[BACKTRACE_SIZE];
+	struct page_mapping mapping_record[BACKTRACE_SIZE];
+	unsigned int size;
+} page_record_t;
+
+/*	rank object	*/
+struct page_object_rank_entry {
+	PageObjectEntry *entry;
+	struct page_object_rank_entry *prev;
+	struct page_object_rank_entry *next;
+};
+
+void page_debug_show_backtrace(void);
+int record_page_record(void *page, unsigned int order);
+int remove_page_record(void *page, unsigned int order);
+void disable_page_alloc_tracer(void);
+#endif
+#ifndef KMEMPAGERECORDER
+#define KMEMPAGERECORDER
+#endif