--- zzzz-none-000/linux-4.4.271/include/linux/mm.h	2021-06-03 06:22:09.000000000 +0000
+++ hawkeye-5590-750/linux-4.4.271/include/linux/mm.h	2023-04-19 10:22:30.000000000 +0000
@@ -30,6 +30,11 @@
 struct writeback_control;
 struct bdi_writeback;
 
+#if defined(CONFIG_AVM_PAGE_TRACE)
+unsigned long avm_get_page_current_pc(struct page *page);
+void avm_set_page_current_pc(struct page *page, unsigned long pc);
+#endif/*--- #if defined(CONFIG_AVM_PAGE_TRACE)  ---*/
+
 #ifndef CONFIG_NEED_MULTIPLE_NODES	/* Don't use mapnrs, do it properly */
 extern unsigned long max_mapnr;
 
@@ -540,7 +545,18 @@
 void put_page(struct page *page);
 void put_pages_list(struct list_head *pages);
 
-void split_page(struct page *page, unsigned int order);
+void __split_page(struct page *page, unsigned int order
+#if defined(CONFIG_AVM_PAGE_TRACE)
+		 , unsigned long pc
+#endif
+		);
+
+#if defined(CONFIG_AVM_PAGE_TRACE)
+#define split_page(page, order)	__split_page(page, order, _RET_IP_)
+#else
+#define split_page(page, order)	__split_page(page, order)
+#endif
+
 int split_free_page(struct page *page);
 
 /*
@@ -1842,6 +1858,10 @@
 /* page_alloc.c */
 extern int min_free_kbytes;
 
+#ifndef CONFIG_NUMA
+extern int min_max_free_kbytes[2];
+#endif /* CONFIG_NUMA */
+
 /* nommu.c */
 extern atomic_long_t mmap_pages_allocated;
 extern int nommu_shrink_inode_mappings(struct inode *, size_t, size_t);
@@ -2013,7 +2033,12 @@
 void task_dirty_inc(struct task_struct *tsk);
 
 /* readahead.c */
-#define VM_MAX_READAHEAD	128	/* kbytes */
+#if defined (CONFIG_AVM_KERNEL)
+	/* 20160725 AVM/VGJ larger USB storage transfers for more speed */
+	#define VM_MAX_READAHEAD	512	/* kbytes */
+#else
+	#define VM_MAX_READAHEAD	128	/* kbytes */
+#endif
 #define VM_MIN_READAHEAD	16	/* kbytes (includes current page) */
 
 int force_page_cache_readahead(struct address_space *mapping, struct file *filp,
@@ -2368,5 +2393,15 @@
 static inline void setup_nr_node_ids(void) {}
 #endif
 
+#ifdef CONFIG_MTD_AVM_MTDRAM
+int __init avm_mtdram_mem_reserve(void);
+#else
+static inline int avm_mtdram_mem_reserve(void) { return 0; }
+#endif
+
+#ifdef CONFIG_DEBUG_MEM_USAGE
+extern int debug_mem_usage_enabled;
+#endif
+
 #endif /* __KERNEL__ */
 #endif /* _LINUX_MM_H */