26984 	struct btt *btt;  member
26994 struct btt {  struct
26995 	struct gendisk *btt_disk;  argument
26998 	struct nd_btt *nd_btt;  argument
26999 	u64 nlba;
27000 	long long unsigned int rawsize;
27001 	u32 lbasize;
27002 	u32 sector_size;
27003 	struct nd_region *nd_region;
27004 	struct mutex init_lock;
27005 	int init_state;
27006 	int num_arenas;
27007 	struct badblocks *phys_bb;