172 static int refill_fifo(struct fifo *fifo, int fd)  in refill_fifo()  argument
179 	if (total > fifo_room(fifo))  in refill_fifo()
180 		total = fifo_room(fifo);  in refill_fifo()
189 		ret = fifo_put(fifo, buf, ret);  in refill_fifo()
197 static int trace_fifo_get(struct fifo *fifo, int fd, void *buf,  in trace_fifo_get()  argument
200 	if (fifo_len(fifo) < len) {  in trace_fifo_get()
201 		int ret = refill_fifo(fifo, fd);  in trace_fifo_get()
207 	return fifo_get(fifo, buf, len);  in trace_fifo_get()
213 static int discard_pdu(struct fifo *fifo, int fd, struct blk_io_trace *t)  in discard_pdu()  argument
218 	return trace_fifo_get(fifo, fd, NULL, t->pdu_len);  in discard_pdu()
484 	struct fifo *fifo;  in load_blktrace()  local
493 	fifo = fifo_alloc(TRACE_FIFO_SIZE);  in load_blktrace()
497 		ret = trace_fifo_get(fifo, fd, &t, sizeof(t));  in load_blktrace()
518 		ret = discard_pdu(fifo, fd, &t);  in load_blktrace()
535 	fifo_free(fifo);  in load_blktrace()
547 	fifo_free(fifo);  in load_blktrace()