NVM_GEN_BLK_BITS   47 include/linux/lightnvm.h 			u64 blk		: NVM_GEN_BLK_BITS;
NVM_GEN_BLK_BITS   55 include/linux/lightnvm.h 			u64 blk		: NVM_GEN_BLK_BITS;
NVM_GEN_BLK_BITS   66 include/linux/lightnvm.h 			u64 chk		: NVM_GEN_BLK_BITS;