page_to_virt
#define page_to_virt(x) ({ \
#define page_to_virt(x) ({ \
#define page_to_virt(page) __va(page_to_phys(page))
#define page_to_virt(page) __va(page_to_phys(page))
#define page_to_virt(page) \
#define page_to_virt(page) ({ \
#define page_to_virt(page) __va(((((page) - mem_map) << PAGE_SHIFT) + PAGE_OFFSET))
# define page_to_virt(page) __va(page_to_pfn(page) << PAGE_SHIFT)
#define page_to_virt(page) \
#define page_to_virt(page) (pfn_to_virt(page_to_pfn(page)))
#define page_to_virt(page) pfn_to_virt(page_to_pfn(page))
#define page_to_virt(page) __va(page_to_pfn(page) << PAGE_SHIFT)
#define page_to_virt(x) __va(PFN_PHYS(page_to_pfn(x)))