481 	dest->epoch = src->epoch;  in target_copy()
1559 	       (osdc->osdmap->epoch < osdc->epoch_barrier);  in target_should_be_paused()
1625 	t->epoch = osdc->osdmap->epoch;  in calc_target()
1633 	if (osdc->osdmap->epoch == pi->last_force_request_resend) {  in calc_target()
2183 	ceph_encode_32(&p, req->r_osdc->osdmap->epoch);  in encode_request_partial()
2255 			__le32 epoch;  in encode_request_finish()  member
2295 		ceph_encode_copy(&p, &head.epoch, sizeof(head.epoch));  in encode_request_finish()
2364 	     req->r_t.spgid.shard, osd->o_osd, req->r_t.epoch, req->r_flags,  in send_request()
2381 	WARN_ON(!osdc->osdmap->epoch);  in maybe_request_map()
2393 			       osdc->osdmap->epoch + 1, continuous))  in maybe_request_map()
2426 	} else if (osdc->osdmap->epoch < osdc->epoch_barrier) {  in __submit_request()
2427 		dout("req %p epoch %u barrier %u\n", req, osdc->osdmap->epoch,  in __submit_request()
2641 		if (eb > osdc->osdmap->epoch)  in update_epoch_barrier()
2663  * has an updated epoch barrier in it, so set the epoch barrier prior to
2675 			update_epoch_barrier(osdc, osdc->osdmap->epoch);  in abort_on_full_fn()
2687  * osdc->epoch_barrier to the latest map epoch that we've seen if any were
2705 	WARN_ON(!map->epoch);  in check_pool_dne()
2713 		req->r_map_dne_bound = map->epoch;  in check_pool_dne()
2718 		     req, req->r_tid, req->r_map_dne_bound, map->epoch);  in check_pool_dne()
2722 		if (map->epoch >= req->r_map_dne_bound) {  in check_pool_dne()
3342 	WARN_ON(!map->epoch);  in check_linger_pool_dne()
3345 		lreq->map_dne_bound = map->epoch;  in check_linger_pool_dne()
3351 		     map->epoch);  in check_linger_pool_dne()
3355 		if (map->epoch >= lreq->map_dne_bound) {  in check_linger_pool_dne()
3678 	u32 epoch;  member
3712 	ceph_decode_32_safe(&p, end, m->epoch, e_inval);  in decode_MOSDOpReply()
3803 	dout("%s req %p tid %llu flags 0x%llx pgid %llu.%x epoch %u attempt %d v %u'%llu uv %llu\n",  in handle_reply()
3805 	     m.epoch, m.retry_attempt, le32_to_cpu(m.replay_version.epoch),  in handle_reply()
3979 			 * scan_requests() for the previous epoch(s)  in scan_requests()
4065 		if (osdc->osdmap->epoch &&  in handle_one_map()
4066 		    osdc->osdmap->epoch + 1 < newmap->epoch) {  in handle_one_map()
4111 		if (req->r_t.epoch < osdc->osdmap->epoch) {  in kick_requests()
4158 	u32 epoch;  in ceph_osdc_handle_map()  local
4167 	dout("%s have %u\n", __func__, osdc->osdmap->epoch);  in ceph_osdc_handle_map()
4186 		epoch = ceph_decode_32(&p);  in ceph_osdc_handle_map()
4189 		if (osdc->osdmap->epoch &&  in ceph_osdc_handle_map()
4190 		    osdc->osdmap->epoch + 1 == epoch) {  in ceph_osdc_handle_map()
4192 			     epoch, maplen);  in ceph_osdc_handle_map()
4200 			     epoch, maplen);  in ceph_osdc_handle_map()
4213 		epoch = ceph_decode_32(&p);  in ceph_osdc_handle_map()
4218 			     epoch, maplen);  in ceph_osdc_handle_map()
4219 		} else if (osdc->osdmap->epoch >= epoch) {  in ceph_osdc_handle_map()
4221 			     "older than our %u\n", epoch, maplen,  in ceph_osdc_handle_map()
4222 			     osdc->osdmap->epoch);  in ceph_osdc_handle_map()
4224 			dout("taking full map %u len %d\n", epoch, maplen);  in ceph_osdc_handle_map()
4245 	    osdc->osdmap->epoch < osdc->epoch_barrier)  in ceph_osdc_handle_map()
4252 			  osdc->osdmap->epoch);  in ceph_osdc_handle_map()
4450 	 * Ack with original backoff's epoch so that the OSD can  in handle_backoff_block()