affs_data_head     33 fs/affs/affs.h #define AFFS_DATA_HEAD(bh)	((struct affs_data_head *)(bh)->b_data)
affs_data_head     34 fs/affs/affs.h #define AFFS_DATA(bh)		(((struct affs_data_head *)(bh)->b_data)->data)