SWP_HWPOISON_NUM 67 include/linux/swap.h #define SWP_DEVICE_WRITE (MAX_SWAPFILES+SWP_HWPOISON_NUM+SWP_MIGRATION_NUM) SWP_HWPOISON_NUM 68 include/linux/swap.h #define SWP_DEVICE_READ (MAX_SWAPFILES+SWP_HWPOISON_NUM+SWP_MIGRATION_NUM+1) SWP_HWPOISON_NUM 78 include/linux/swap.h #define SWP_MIGRATION_READ (MAX_SWAPFILES + SWP_HWPOISON_NUM) SWP_HWPOISON_NUM 79 include/linux/swap.h #define SWP_MIGRATION_WRITE (MAX_SWAPFILES + SWP_HWPOISON_NUM + 1) SWP_HWPOISON_NUM 96 include/linux/swap.h SWP_MIGRATION_NUM - SWP_HWPOISON_NUM)