Add VM page allocation tracking similar to what happens in the slab already.

Introduces "page_allocation_infos" and "page_allocations_per_caller" KDL
commands.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@43190 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/kernel/vm/vm_types.h

@@ -12,6 +12,7 @@
 
 #include <new>
 
+#include <AllocationTracking.h>
 #include <arch/vm_types.h>
 #include <condition_variable.h>
 #include <kernel.h>
@@ -25,6 +26,11 @@
 #include "kernel_debug_config.h"
 
 
+#define VM_PAGE_ALLOCATION_TRACKING_AVAILABLE \
+	(VM_PAGE_ALLOCATION_TRACKING && PAGE_ALLOCATION_TRACING != 0 \
+		&& PAGE_ALLOCATION_TRACING_STACK_TRACE > 0)
+
+
 class AsyncIOCallback;
 struct vm_page_mapping;
 struct VMCache;
@@ -133,6 +139,10 @@ public:
 	vint32					accessing_thread;
 #endif
 
+#if VM_PAGE_ALLOCATION_TRACKING_AVAILABLE
+	AllocationTrackingInfo	allocation_tracking_info;
+#endif
+
 private:
 	uint8					state : 3;
 public: