rq = __blk_mq_alloc_request(&alloc_data, rw, 0); if (!rq) { blk_queue_exit(q); return ERR_PTR(-EWOULDBLOCK); ret = -EWOULDBLOCK; goto out_queue_exit; }return rq;out_queue_exit: blk_queue_exit(q); return ERR_PTR(ret); ...
ret_fr.. kthread schedule_timeout blk_sq_.. xfs_add.. generic_file_read_iter blk_s.. pa.. io_sc.. sched.. worker.. SY.. proces.. lo.. us.. blk_mq_.. schedule bt_ge.. submi.. sched.. schedul.. __writ.. __write.. xfs_a.. bt_get... wa.. do_writ.. xf.. vf...