92 static void drbd_endio_read_sec_final(struct drbd_peer_request *peer_req) __releases(local)  in drbd_endio_read_sec_final()  argument
95 	struct drbd_peer_device *peer_device = peer_req->peer_device;  in drbd_endio_read_sec_final()
99 	device->read_cnt += peer_req->i.size >> 9;  in drbd_endio_read_sec_final()
100 	list_del(&peer_req->w.list);  in drbd_endio_read_sec_final()
103 	if (test_bit(__EE_WAS_ERROR, &peer_req->flags))  in drbd_endio_read_sec_final()
107 	drbd_queue_work(&peer_device->connection->sender_work, &peer_req->w);  in drbd_endio_read_sec_final()
113 void drbd_endio_write_sec_final(struct drbd_peer_request *peer_req) __releases(local)  in drbd_endio_write_sec_final()  argument
116 	struct drbd_peer_device *peer_device = peer_req->peer_device;  in drbd_endio_write_sec_final()
128 	i = peer_req->i;  in drbd_endio_write_sec_final()
129 	do_al_complete_io = peer_req->flags & EE_CALL_AL_COMPLETE_IO;  in drbd_endio_write_sec_final()
130 	block_id = peer_req->block_id;  in drbd_endio_write_sec_final()
131 	peer_req->flags &= ~EE_CALL_AL_COMPLETE_IO;  in drbd_endio_write_sec_final()
133 	if (peer_req->flags & EE_WAS_ERROR) {  in drbd_endio_write_sec_final()
136 		if (!__test_and_set_bit(__EE_SEND_WRITE_ACK, &peer_req->flags))  in drbd_endio_write_sec_final()
138 		drbd_set_out_of_sync(device, peer_req->i.sector, peer_req->i.size);  in drbd_endio_write_sec_final()
142 	device->writ_cnt += peer_req->i.size >> 9;  in drbd_endio_write_sec_final()
143 	list_move_tail(&peer_req->w.list, &device->done_ee);  in drbd_endio_write_sec_final()
157 	if (peer_req->flags & EE_WAS_ERROR)  in drbd_endio_write_sec_final()
184 	struct drbd_peer_request *peer_req = bio->bi_private;  in drbd_peer_request_endio()  local
185 	struct drbd_device *device = peer_req->peer_device->device;  in drbd_peer_request_endio()
194 				(unsigned long long)peer_req->i.sector);  in drbd_peer_request_endio()
197 		set_bit(__EE_WAS_ERROR, &peer_req->flags);  in drbd_peer_request_endio()
200 	if (atomic_dec_and_test(&peer_req->pending_bios)) {  in drbd_peer_request_endio()
202 			drbd_endio_write_sec_final(peer_req);  in drbd_peer_request_endio()
204 			drbd_endio_read_sec_final(peer_req);  in drbd_peer_request_endio()
298 void drbd_csum_ee(struct crypto_ahash *tfm, struct drbd_peer_request *peer_req, void *digest)  in drbd_csum_ee()  argument
302 	struct page *page = peer_req->pages;  in drbd_csum_ee()
320 	len = peer_req->i.size & (PAGE_SIZE - 1);  in drbd_csum_ee()
357 	struct drbd_peer_request *peer_req = container_of(w, struct drbd_peer_request, w);  in w_e_send_csum()  local
358 	struct drbd_peer_device *peer_device = peer_req->peer_device;  in w_e_send_csum()
367 	if (unlikely((peer_req->flags & EE_WAS_ERROR) != 0))  in w_e_send_csum()
373 		sector_t sector = peer_req->i.sector;  in w_e_send_csum()
374 		unsigned int size = peer_req->i.size;  in w_e_send_csum()
375 		drbd_csum_ee(peer_device->connection->csums_tfm, peer_req, digest);  in w_e_send_csum()
381 		drbd_free_peer_req(device, peer_req);  in w_e_send_csum()
382 		peer_req = NULL;  in w_e_send_csum()
394 	if (peer_req)  in w_e_send_csum()
395 		drbd_free_peer_req(device, peer_req);  in w_e_send_csum()
407 	struct drbd_peer_request *peer_req;  in read_for_csum()  local
414 	peer_req = drbd_alloc_peer_req(peer_device, ID_SYNCER /* unused */, sector,  in read_for_csum()
416 	if (!peer_req)  in read_for_csum()
419 	peer_req->w.cb = w_e_send_csum;  in read_for_csum()
421 	list_add_tail(&peer_req->w.list, &device->read_ee);  in read_for_csum()
425 	if (drbd_submit_peer_request(device, peer_req, REQ_OP_READ, 0,  in read_for_csum()
434 	list_del(&peer_req->w.list);  in read_for_csum()
437 	drbd_free_peer_req(device, peer_req);  in read_for_csum()
1046 static void move_to_net_ee_or_free(struct drbd_device *device, struct drbd_peer_request *peer_req)  in move_to_net_ee_or_free()  argument
1048 	if (drbd_peer_req_has_active_page(peer_req)) {  in move_to_net_ee_or_free()
1050 		int i = (peer_req->i.size + PAGE_SIZE -1) >> PAGE_SHIFT;  in move_to_net_ee_or_free()
1054 		list_add_tail(&peer_req->w.list, &device->net_ee);  in move_to_net_ee_or_free()
1058 		drbd_free_peer_req(device, peer_req);  in move_to_net_ee_or_free()
1068 	struct drbd_peer_request *peer_req = container_of(w, struct drbd_peer_request, w);  in w_e_end_data_req()  local
1069 	struct drbd_peer_device *peer_device = peer_req->peer_device;  in w_e_end_data_req()
1074 		drbd_free_peer_req(device, peer_req);  in w_e_end_data_req()
1079 	if (likely((peer_req->flags & EE_WAS_ERROR) == 0)) {  in w_e_end_data_req()
1080 		err = drbd_send_block(peer_device, P_DATA_REPLY, peer_req);  in w_e_end_data_req()
1084 			    (unsigned long long)peer_req->i.sector);  in w_e_end_data_req()
1086 		err = drbd_send_ack(peer_device, P_NEG_DREPLY, peer_req);  in w_e_end_data_req()
1091 	move_to_net_ee_or_free(device, peer_req);  in w_e_end_data_req()
1098 static bool all_zero(struct drbd_peer_request *peer_req)  in all_zero()  argument
1100 	struct page *page = peer_req->pages;  in all_zero()
1101 	unsigned int len = peer_req->i.size;  in all_zero()
1129 	struct drbd_peer_request *peer_req = container_of(w, struct drbd_peer_request, w);  in w_e_end_rsdata_req()  local
1130 	struct drbd_peer_device *peer_device = peer_req->peer_device;  in w_e_end_rsdata_req()
1135 		drbd_free_peer_req(device, peer_req);  in w_e_end_rsdata_req()
1141 		drbd_rs_complete_io(device, peer_req->i.sector);  in w_e_end_rsdata_req()
1146 		err = drbd_send_ack(peer_device, P_RS_CANCEL, peer_req);  in w_e_end_rsdata_req()
1147 	} else if (likely((peer_req->flags & EE_WAS_ERROR) == 0)) {  in w_e_end_rsdata_req()
1150 			if (peer_req->flags & EE_RS_THIN_REQ && all_zero(peer_req))  in w_e_end_rsdata_req()
1151 				err = drbd_send_rs_deallocated(peer_device, peer_req);  in w_e_end_rsdata_req()
1153 				err = drbd_send_block(peer_device, P_RS_DATA_REPLY, peer_req);  in w_e_end_rsdata_req()
1163 			    (unsigned long long)peer_req->i.sector);  in w_e_end_rsdata_req()
1165 		err = drbd_send_ack(peer_device, P_NEG_RS_DREPLY, peer_req);  in w_e_end_rsdata_req()
1168 		drbd_rs_failed_io(device, peer_req->i.sector, peer_req->i.size);  in w_e_end_rsdata_req()
1173 	move_to_net_ee_or_free(device, peer_req);  in w_e_end_rsdata_req()
1182 	struct drbd_peer_request *peer_req = container_of(w, struct drbd_peer_request, w);  in w_e_end_csum_rs_req()  local
1183 	struct drbd_peer_device *peer_device = peer_req->peer_device;  in w_e_end_csum_rs_req()
1191 		drbd_free_peer_req(device, peer_req);  in w_e_end_csum_rs_req()
1197 		drbd_rs_complete_io(device, peer_req->i.sector);  in w_e_end_csum_rs_req()
1201 	di = peer_req->digest;  in w_e_end_csum_rs_req()
1203 	if (likely((peer_req->flags & EE_WAS_ERROR) == 0)) {  in w_e_end_csum_rs_req()
1213 			drbd_csum_ee(peer_device->connection->csums_tfm, peer_req, digest);  in w_e_end_csum_rs_req()
1219 			drbd_set_in_sync(device, peer_req->i.sector, peer_req->i.size);  in w_e_end_csum_rs_req()
1221 			device->rs_same_csum += peer_req->i.size >> BM_BLOCK_SHIFT;  in w_e_end_csum_rs_req()
1222 			err = drbd_send_ack(peer_device, P_RS_IS_IN_SYNC, peer_req);  in w_e_end_csum_rs_req()
1225 			peer_req->block_id = ID_SYNCER; /* By setting block_id, digest pointer becomes invalid! */  in w_e_end_csum_rs_req()
1226 			peer_req->flags &= ~EE_HAS_DIGEST; /* This peer request no longer has a digest pointer */  in w_e_end_csum_rs_req()
1228 			err = drbd_send_block(peer_device, P_RS_DATA_REPLY, peer_req);  in w_e_end_csum_rs_req()
1231 		err = drbd_send_ack(peer_device, P_NEG_RS_DREPLY, peer_req);  in w_e_end_csum_rs_req()
1237 	move_to_net_ee_or_free(device, peer_req);  in w_e_end_csum_rs_req()
1246 	struct drbd_peer_request *peer_req = container_of(w, struct drbd_peer_request, w);  in w_e_end_ov_req()  local
1247 	struct drbd_peer_device *peer_device = peer_req->peer_device;  in w_e_end_ov_req()
1249 	sector_t sector = peer_req->i.sector;  in w_e_end_ov_req()
1250 	unsigned int size = peer_req->i.size;  in w_e_end_ov_req()
1265 	if (likely(!(peer_req->flags & EE_WAS_ERROR)))  in w_e_end_ov_req()
1266 		drbd_csum_ee(peer_device->connection->verify_tfm, peer_req, digest);  in w_e_end_ov_req()
1275 	drbd_free_peer_req(device, peer_req);  in w_e_end_ov_req()
1276 	peer_req = NULL;  in w_e_end_ov_req()
1284 	if (peer_req)  in w_e_end_ov_req()
1285 		drbd_free_peer_req(device, peer_req);  in w_e_end_ov_req()
1303 	struct drbd_peer_request *peer_req = container_of(w, struct drbd_peer_request, w);  in w_e_end_ov_reply()  local
1304 	struct drbd_peer_device *peer_device = peer_req->peer_device;  in w_e_end_ov_reply()
1308 	sector_t sector = peer_req->i.sector;  in w_e_end_ov_reply()
1309 	unsigned int size = peer_req->i.size;  in w_e_end_ov_reply()
1315 		drbd_free_peer_req(device, peer_req);  in w_e_end_ov_reply()
1323 		drbd_rs_complete_io(device, peer_req->i.sector);  in w_e_end_ov_reply()
1327 	di = peer_req->digest;  in w_e_end_ov_reply()
1329 	if (likely((peer_req->flags & EE_WAS_ERROR) == 0)) {  in w_e_end_ov_reply()
1333 			drbd_csum_ee(peer_device->connection->verify_tfm, peer_req, digest);  in w_e_end_ov_reply()
1346 	drbd_free_peer_req(device, peer_req);  in w_e_end_ov_reply()