BIOVEC_SEG_BOUNDARY 72 block/blk-merge.c if (!BIOVEC_SEG_BOUNDARY(q, bvprv, bv)) BIOVEC_SEG_BOUNDARY 157 block/blk-merge.c if (!BIOVEC_SEG_BOUNDARY(q, bvprv, bvec)) BIOVEC_SEG_BOUNDARY 237 include/linux/bio.h BIOVEC_SEG_BOUNDARY((q), __BVEC_END((b1)), __BVEC_START((b2)))