--- zzzz-none-000/linux-5.4.213/include/linux/mm.h	2022-09-15 10:04:56.000000000 +0000
+++ miami-7690-761/linux-5.4.213/include/linux/mm.h	2024-05-29 11:20:02.000000000 +0000
@@ -37,6 +37,11 @@
 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)  ---*/
+
 void init_mm_internals(void);
 
 #ifndef CONFIG_NEED_MULTIPLE_NODES	/* Don't use mapnrs, do it properly */
@@ -765,7 +770,11 @@
 
 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, unsigned long pc);
+
+#define split_page(page, order)	__split_page(page, order, _RET_IP_)
+
+int split_free_page(struct page *page);
 
 /*
  * Compound pages have a destructor function.  Provide a
@@ -2448,7 +2457,12 @@
 void task_dirty_inc(struct task_struct *tsk);
 
 /* readahead.c */
-#define VM_READAHEAD_PAGES	(SZ_128K / PAGE_SIZE)
+#if defined(CONFIG_AVM_ENHANCED)
+	/* 20230426 AVM/WKR larger USB storage transfers for more speed */
+	#define VM_READAHEAD_PAGES	(SZ_512K / PAGE_SIZE)
+#else
+	#define VM_READAHEAD_PAGES	(SZ_128K / PAGE_SIZE)
+#endif
 
 int force_page_cache_readahead(struct address_space *mapping, struct file *filp,
 			pgoff_t offset, unsigned long nr_to_read);
@@ -2930,6 +2944,11 @@
 	return !memcmp_pages(page1, page2);
 }
 
+#ifdef CONFIG_DEBUG_MEM_USAGE
+extern int debug_mem_usage_enabled;
+void __wrap_update_call_stack(void *addr);
+#endif
+
 /**
  * seal_check_future_write - Check for F_SEAL_FUTURE_WRITE flag and handle it
  * @seals: the seals to check