REQ_DISCARD 109 include/linux/bio.h !(bio->bi_rw & REQ_DISCARD)) REQ_DISCARD 267 include/linux/bio.h if (bio->bi_rw & REQ_DISCARD) REQ_DISCARD 212 include/linux/blk_types.h REQ_DISCARD | REQ_WRITE_SAME | REQ_NOIDLE | REQ_FLUSH | REQ_FUA | \ REQ_DISCARD 216 include/linux/blk_types.h #define BIO_NO_ADVANCE_ITER_MASK (REQ_DISCARD|REQ_WRITE_SAME) REQ_DISCARD 683 include/linux/blkdev.h if ((flags1 & REQ_DISCARD) != (flags2 & REQ_DISCARD)) REQ_DISCARD 903 include/linux/blkdev.h if (unlikely(cmd_flags & REQ_DISCARD))