*/
#define xen_pfn_to_page(xen_pfn) \
- ((pfn_to_page(((unsigned long)(xen_pfn) << XEN_PAGE_SHIFT) >> PAGE_SHIFT)))
+ (pfn_to_page((unsigned long)(xen_pfn) >> (PAGE_SHIFT - XEN_PAGE_SHIFT)))
#define page_to_xen_pfn(page) \
- (((page_to_pfn(page)) << PAGE_SHIFT) >> XEN_PAGE_SHIFT)
+ ((page_to_pfn(page)) << (PAGE_SHIFT - XEN_PAGE_SHIFT))
#define XEN_PFN_PER_PAGE (PAGE_SIZE / XEN_PAGE_SIZE)