* vm_page::offset is now called cache_offset and is now an uint32 instead of off_t;

this saves 4 bytes per page. To compensate the loss of bytes, the offset is now
  stored in page size units, that's enough to address 2^44 or 16 TB (which is now
  the maximal supported file size!).
* Renamed vm_page::ppn to physical_page_number.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15637 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/kernel/arch/ppc/arch_vm.h

@@ -10,4 +10,6 @@
 #define NUM_IO_PAGES	4
 	/* 16 kB */
 
+#define PAGE_SHIFT 12
+
 #endif	/* ARCH_PPC_VM_H */

headers/private/kernel/arch/x86/arch_vm.h

@@ -10,4 +10,6 @@
 #define NUM_IO_PAGES	4
 	/* 16 kB */
 
+#define PAGE_SHIFT 12
+
 #endif	/* ARCH_x86_VM_H */