MAX_SWAPFILES 57 include/linux/swap.h #define SWP_MIGRATION_READ (MAX_SWAPFILES + SWP_HWPOISON_NUM) MAX_SWAPFILES 58 include/linux/swap.h #define SWP_MIGRATION_WRITE (MAX_SWAPFILES + SWP_HWPOISON_NUM + 1) MAX_SWAPFILES 68 include/linux/swap.h #define SWP_HWPOISON MAX_SWAPFILES MAX_SWAPFILES 194 include/linux/swapops.h return swp_type(entry) >= MAX_SWAPFILES;