1 typedef struct 2 { 3 unsigned long long pte; 4 } pte_t; mk_swap_pte(unsigned long offset)5pte_t mk_swap_pte (unsigned long offset) 6 { 7 pte_t pte; 8 pte.pte = (offset << 40); 9 return pte; 10 } pte_file(pte_t pte)11int pte_file (pte_t pte) 12 { 13 return pte.pte & (1 << 4); 14 } 15 typedef struct 16 { 17 unsigned long val; 18 } swp_entry_t; swp_entry_to_pte(swp_entry_t entry)19pte_t swp_entry_to_pte (swp_entry_t entry) 20 { 21 swp_entry_t arch_entry; 22 arch_entry = (swp_entry_t){mk_swap_pte (swp_offset (entry)).pte}; 23 __BUG_ON ((unsigned long) pte_file ((pte_t) {arch_entry.val})); 24 return (pte_t) {arch_entry.val}; 25 } 26