--- zzzz-none-000/linux-4.19.183/mm/page_alloc.c	2021-03-24 10:07:39.000000000 +0000
+++ bcm63-7530ax-756/linux-4.19.183/mm/page_alloc.c	2023-06-28 08:54:21.000000000 +0000
@@ -2863,15 +2863,24 @@
  * Note: this is probably too low level an operation for use in drivers.
  * Please consult with lkml before using this in your driver.
  */
-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
+)
 {
 	int i;
 
 	VM_BUG_ON_PAGE(PageCompound(page), page);
 	VM_BUG_ON_PAGE(!page_count(page), page);
 
-	for (i = 1; i < (1 << order); i++)
+	for (i = 1; i < (1 << order); i++) {
 		set_page_refcounted(page + i);
+#if defined(CONFIG_AVM_PAGE_TRACE)
+		avm_set_page_current_pc(page + i, pc);
+#endif
+	}
+
 	split_page_owner(page, order);
 }
 EXPORT_SYMBOL_GPL(split_page);
@@ -4372,7 +4381,11 @@
  */
 struct page *
 __alloc_pages_nodemask(gfp_t gfp_mask, unsigned int order, int preferred_nid,
-							nodemask_t *nodemask)
+							nodemask_t *nodemask
+#if defined(CONFIG_AVM_PAGE_TRACE)
+							, unsigned long pc
+#endif
+							)
 {
 	struct page *page;
 	unsigned int alloc_flags = ALLOC_WMARK_LOW;
@@ -4427,6 +4440,10 @@
 
 	trace_mm_page_alloc(page, order, alloc_mask, ac.migratetype);
 
+#if defined(CONFIG_AVM_PAGE_TRACE)
+	if (likely(page))
+		avm_set_page_current_pc(page, pc);
+#endif
 	return page;
 }
 EXPORT_SYMBOL(__alloc_pages_nodemask);
@@ -4591,13 +4608,21 @@
 EXPORT_SYMBOL(page_frag_free);
 
 static void *make_alloc_exact(unsigned long addr, unsigned int order,
-		size_t size)
+		size_t size
+#if defined(CONFIG_AVM_PAGE_TRACE)
+		, unsigned long pc
+#endif
+		)
 {
 	if (addr) {
 		unsigned long alloc_end = addr + (PAGE_SIZE << order);
 		unsigned long used = addr + PAGE_ALIGN(size);
 
-		split_page(virt_to_page((void *)addr), order);
+		split_page(virt_to_page((void *)addr), order
+#if defined(CONFIG_AVM_PAGE_TRACE)
+			   , pc
+#endif
+		);
 		while (used < alloc_end) {
 			free_page(used);
 			used += PAGE_SIZE;
@@ -4625,7 +4650,11 @@
 	unsigned long addr;
 
 	addr = __get_free_pages(gfp_mask, order);
-	return make_alloc_exact(addr, order, size);
+	return make_alloc_exact(addr, order, size
+#if defined(CONFIG_AVM_PAGE_TRACE)
+				, _RET_IP_
+#endif
+	       );
 }
 EXPORT_SYMBOL(alloc_pages_exact);
 
@@ -4645,7 +4674,11 @@
 	struct page *p = alloc_pages_node(nid, gfp_mask, order);
 	if (!p)
 		return NULL;
-	return make_alloc_exact((unsigned long)page_address(p), order, size);
+	return make_alloc_exact((unsigned long)page_address(p), order, size
+#if defined(CONFIG_AVM_PAGE_TRACE)
+				, 0L
+#endif
+			);
 }
 
 /**
@@ -4895,6 +4928,29 @@
 		for_each_online_cpu(cpu)
 			free_pcp += per_cpu_ptr(zone->pageset, cpu)->pcp.count;
 	}
+#if defined(CONFIG_AVM_ENHANCED)
+    {
+    unsigned int sum_pages;
+    sum_pages = global_zone_page_state(NR_ACTIVE_ANON)+
+                global_zone_page_state(NR_INACTIVE_ANON)+
+                global_zone_page_state(NR_ISOLATED_ANON)+
+                global_zone_page_state(NR_ACTIVE_FILE)+
+                global_zone_page_state(NR_INACTIVE_FILE)+
+                global_zone_page_state(NR_ISOLATED_FILE)+
+                global_zone_page_state(NR_UNEVICTABLE)+
+                global_zone_page_state(NR_FILE_DIRTY)+
+                global_zone_page_state(NR_WRITEBACK)+
+                global_zone_page_state(NR_UNSTABLE_NFS)+
+                global_zone_page_state(NR_FREE_PAGES)+
+                global_zone_page_state(NR_SLAB_RECLAIMABLE)+
+                global_zone_page_state(NR_SLAB_UNRECLAIMABLE)+
+                global_zone_page_state(NR_FILE_MAPPED)+
+                global_zone_page_state(NR_SHMEM)+
+                global_zone_page_state(NR_PAGETABLE)+
+                global_zone_page_state(NR_BOUNCE);
+        printk("global_page_sum %ukB(%u pages)\n", sum_pages * 4, sum_pages);
+    }
+#endif/*--- #if defined(CONFIG_AVM_ENHANCED)  ---*/
 
 	printk("active_anon:%lu inactive_anon:%lu isolated_anon:%lu\n"
 		" active_file:%lu inactive_file:%lu isolated_file:%lu\n"