38 	req->epoch = 0;  in drbd_req_new()
167 	/* no point closing an epoch, if it is empty, anyways. */  in start_new_tl_epoch()
237 	 * we may need to close the current transfer log epoch.  in drbd_req_complete()
239 	 * the request epoch number with the current transfer log  in drbd_req_complete()
240 	 * epoch number.  If they match, increase the current_tle_nr,  in drbd_req_complete()
241 	 * and reset the transfer log epoch write_cnt.  in drbd_req_complete()
244 	    req->epoch == atomic_read(&first_peer_device(device)->connection->current_tle_nr))  in drbd_req_complete()
683 		 * again ourselves to close the current epoch.  in __req_mod()
685 		 * Add req to the (now) current epoch (barrier). */  in __req_mod()
699 		/* close the epoch, in case it outgrew the limit */  in __req_mod()
734 		 * corresponding epoch barrier got acked as well,  in __req_mod()
867 		 * As this is called for all requests within a matching epoch,  in __req_mod()
1021 		/* start a new epoch for non-mirrored writes */  in maybe_pull_ahead()
1116 	 * If this was a flush, just start a new epoch.  in drbd_process_write_request()
1117 	 * Unless the current epoch was empty anyways, or we are not currently  in drbd_process_write_request()
1359 	/* which transfer log epoch does this belong to? */  in drbd_send_and_submit()
1360 	req->epoch = atomic_read(&first_peer_device(device)->connection->current_tle_nr);  in drbd_send_and_submit()
1648 	 * but are waiting for the epoch closing barrier ack.  in net_timeout_reached()
1651 	if (net_req->epoch == connection->send.current_epoch_nr) {  in net_timeout_reached()
1659 	 * suddenly are able to send a lot of requests (and epoch separating  in net_timeout_reached()
1749 	 * check the oldest requests which is still waiting on its epoch  in request_timer_fn()