blk_do_io_stat 1311 block/blk-core.c if (blk_do_io_stat(req)) { blk_do_io_stat 1329 block/blk-core.c if (blk_do_io_stat(req) && !(req->rq_flags & RQF_FLUSH_SEQ)) { blk_do_io_stat 1352 block/blk-core.c if (!blk_do_io_stat(rq)) blk_do_io_stat 681 block/blk-merge.c if (blk_do_io_stat(req)) {