81 static void drbd_endio_read_sec_final(struct drbd_peer_request *peer_req) __releases(local)  in drbd_endio_read_sec_final()  argument
84 	struct drbd_peer_device *peer_device = peer_req->peer_device;  in drbd_endio_read_sec_final()
88 	device->read_cnt += peer_req->i.size >> 9;  in drbd_endio_read_sec_final()
89 	list_del(&peer_req->w.list);  in drbd_endio_read_sec_final()
92 	if (test_bit(__EE_WAS_ERROR, &peer_req->flags))  in drbd_endio_read_sec_final()
96 	drbd_queue_work(&peer_device->connection->sender_work, &peer_req->w);  in drbd_endio_read_sec_final()
102 void drbd_endio_write_sec_final(struct drbd_peer_request *peer_req) __releases(local)  in drbd_endio_write_sec_final()  argument
105 	struct drbd_peer_device *peer_device = peer_req->peer_device;  in drbd_endio_write_sec_final()
117 	i = peer_req->i;  in drbd_endio_write_sec_final()
118 	do_al_complete_io = peer_req->flags & EE_CALL_AL_COMPLETE_IO;  in drbd_endio_write_sec_final()
119 	block_id = peer_req->block_id;  in drbd_endio_write_sec_final()
120 	peer_req->flags &= ~EE_CALL_AL_COMPLETE_IO;  in drbd_endio_write_sec_final()
122 	if (peer_req->flags & EE_WAS_ERROR) {  in drbd_endio_write_sec_final()
125 		if (!__test_and_set_bit(__EE_SEND_WRITE_ACK, &peer_req->flags))  in drbd_endio_write_sec_final()
127 		drbd_set_out_of_sync(device, peer_req->i.sector, peer_req->i.size);  in drbd_endio_write_sec_final()
131 	device->writ_cnt += peer_req->i.size >> 9;  in drbd_endio_write_sec_final()
132 	list_move_tail(&peer_req->w.list, &device->done_ee);  in drbd_endio_write_sec_final()
146 	if (peer_req->flags & EE_WAS_ERROR)  in drbd_endio_write_sec_final()
173 	struct drbd_peer_request *peer_req = bio->bi_private;  in drbd_peer_request_endio()  local
174 	struct drbd_device *device = peer_req->peer_device->device;  in drbd_peer_request_endio()
183 				(unsigned long long)peer_req->i.sector);  in drbd_peer_request_endio()
186 		set_bit(__EE_WAS_ERROR, &peer_req->flags);  in drbd_peer_request_endio()
189 	if (atomic_dec_and_test(&peer_req->pending_bios)) {  in drbd_peer_request_endio()
191 			drbd_endio_write_sec_final(peer_req);  in drbd_peer_request_endio()
193 			drbd_endio_read_sec_final(peer_req);  in drbd_peer_request_endio()
287 void drbd_csum_ee(struct crypto_shash *tfm, struct drbd_peer_request *peer_req, void *digest)  in drbd_csum_ee()  argument
290 	struct page *page = peer_req->pages;  in drbd_csum_ee()
308 	len = peer_req->i.size & (PAGE_SIZE - 1);  in drbd_csum_ee()
345 	struct drbd_peer_request *peer_req = container_of(w, struct drbd_peer_request, w);  in w_e_send_csum()  local
346 	struct drbd_peer_device *peer_device = peer_req->peer_device;  in w_e_send_csum()
355 	if (unlikely((peer_req->flags & EE_WAS_ERROR) != 0))  in w_e_send_csum()
361 		sector_t sector = peer_req->i.sector;  in w_e_send_csum()
362 		unsigned int size = peer_req->i.size;  in w_e_send_csum()
363 		drbd_csum_ee(peer_device->connection->csums_tfm, peer_req, digest);  in w_e_send_csum()
369 		drbd_free_peer_req(device, peer_req);  in w_e_send_csum()
370 		peer_req = NULL;  in w_e_send_csum()
382 	if (peer_req)  in w_e_send_csum()
383 		drbd_free_peer_req(device, peer_req);  in w_e_send_csum()
395 	struct drbd_peer_request *peer_req;  in read_for_csum()  local
402 	peer_req = drbd_alloc_peer_req(peer_device, ID_SYNCER /* unused */, sector,  in read_for_csum()
404 	if (!peer_req)  in read_for_csum()
407 	peer_req->w.cb = w_e_send_csum;  in read_for_csum()
409 	list_add_tail(&peer_req->w.list, &device->read_ee);  in read_for_csum()
413 	if (drbd_submit_peer_request(device, peer_req, REQ_OP_READ, 0,  in read_for_csum()
422 	list_del(&peer_req->w.list);  in read_for_csum()
425 	drbd_free_peer_req(device, peer_req);  in read_for_csum()
1034 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
1036 	if (drbd_peer_req_has_active_page(peer_req)) {  in move_to_net_ee_or_free()
1038 		int i = (peer_req->i.size + PAGE_SIZE -1) >> PAGE_SHIFT;  in move_to_net_ee_or_free()
1042 		list_add_tail(&peer_req->w.list, &device->net_ee);  in move_to_net_ee_or_free()
1046 		drbd_free_peer_req(device, peer_req);  in move_to_net_ee_or_free()
1056 	struct drbd_peer_request *peer_req = container_of(w, struct drbd_peer_request, w);  in w_e_end_data_req()  local
1057 	struct drbd_peer_device *peer_device = peer_req->peer_device;  in w_e_end_data_req()
1062 		drbd_free_peer_req(device, peer_req);  in w_e_end_data_req()
1067 	if (likely((peer_req->flags & EE_WAS_ERROR) == 0)) {  in w_e_end_data_req()
1068 		err = drbd_send_block(peer_device, P_DATA_REPLY, peer_req);  in w_e_end_data_req()
1072 			    (unsigned long long)peer_req->i.sector);  in w_e_end_data_req()
1074 		err = drbd_send_ack(peer_device, P_NEG_DREPLY, peer_req);  in w_e_end_data_req()
1079 	move_to_net_ee_or_free(device, peer_req);  in w_e_end_data_req()
1086 static bool all_zero(struct drbd_peer_request *peer_req)  in all_zero()  argument
1088 	struct page *page = peer_req->pages;  in all_zero()
1089 	unsigned int len = peer_req->i.size;  in all_zero()
1117 	struct drbd_peer_request *peer_req = container_of(w, struct drbd_peer_request, w);  in w_e_end_rsdata_req()  local
1118 	struct drbd_peer_device *peer_device = peer_req->peer_device;  in w_e_end_rsdata_req()
1123 		drbd_free_peer_req(device, peer_req);  in w_e_end_rsdata_req()
1129 		drbd_rs_complete_io(device, peer_req->i.sector);  in w_e_end_rsdata_req()
1134 		err = drbd_send_ack(peer_device, P_RS_CANCEL, peer_req);  in w_e_end_rsdata_req()
1135 	} else if (likely((peer_req->flags & EE_WAS_ERROR) == 0)) {  in w_e_end_rsdata_req()
1138 			if (peer_req->flags & EE_RS_THIN_REQ && all_zero(peer_req))  in w_e_end_rsdata_req()
1139 				err = drbd_send_rs_deallocated(peer_device, peer_req);  in w_e_end_rsdata_req()
1141 				err = drbd_send_block(peer_device, P_RS_DATA_REPLY, peer_req);  in w_e_end_rsdata_req()
1151 			    (unsigned long long)peer_req->i.sector);  in w_e_end_rsdata_req()
1153 		err = drbd_send_ack(peer_device, P_NEG_RS_DREPLY, peer_req);  in w_e_end_rsdata_req()
1156 		drbd_rs_failed_io(device, peer_req->i.sector, peer_req->i.size);  in w_e_end_rsdata_req()
1161 	move_to_net_ee_or_free(device, peer_req);  in w_e_end_rsdata_req()
1170 	struct drbd_peer_request *peer_req = container_of(w, struct drbd_peer_request, w);  in w_e_end_csum_rs_req()  local
1171 	struct drbd_peer_device *peer_device = peer_req->peer_device;  in w_e_end_csum_rs_req()
1179 		drbd_free_peer_req(device, peer_req);  in w_e_end_csum_rs_req()
1185 		drbd_rs_complete_io(device, peer_req->i.sector);  in w_e_end_csum_rs_req()
1189 	di = peer_req->digest;  in w_e_end_csum_rs_req()
1191 	if (likely((peer_req->flags & EE_WAS_ERROR) == 0)) {  in w_e_end_csum_rs_req()
1201 			drbd_csum_ee(peer_device->connection->csums_tfm, peer_req, digest);  in w_e_end_csum_rs_req()
1207 			drbd_set_in_sync(device, peer_req->i.sector, peer_req->i.size);  in w_e_end_csum_rs_req()
1209 			device->rs_same_csum += peer_req->i.size >> BM_BLOCK_SHIFT;  in w_e_end_csum_rs_req()
1210 			err = drbd_send_ack(peer_device, P_RS_IS_IN_SYNC, peer_req);  in w_e_end_csum_rs_req()
1213 			peer_req->block_id = ID_SYNCER; /* By setting block_id, digest pointer becomes invalid! */  in w_e_end_csum_rs_req()
1214 			peer_req->flags &= ~EE_HAS_DIGEST; /* This peer request no longer has a digest pointer */  in w_e_end_csum_rs_req()
1216 			err = drbd_send_block(peer_device, P_RS_DATA_REPLY, peer_req);  in w_e_end_csum_rs_req()
1219 		err = drbd_send_ack(peer_device, P_NEG_RS_DREPLY, peer_req);  in w_e_end_csum_rs_req()
1225 	move_to_net_ee_or_free(device, peer_req);  in w_e_end_csum_rs_req()
1234 	struct drbd_peer_request *peer_req = container_of(w, struct drbd_peer_request, w);  in w_e_end_ov_req()  local
1235 	struct drbd_peer_device *peer_device = peer_req->peer_device;  in w_e_end_ov_req()
1237 	sector_t sector = peer_req->i.sector;  in w_e_end_ov_req()
1238 	unsigned int size = peer_req->i.size;  in w_e_end_ov_req()
1253 	if (likely(!(peer_req->flags & EE_WAS_ERROR)))  in w_e_end_ov_req()
1254 		drbd_csum_ee(peer_device->connection->verify_tfm, peer_req, digest);  in w_e_end_ov_req()
1263 	drbd_free_peer_req(device, peer_req);  in w_e_end_ov_req()
1264 	peer_req = NULL;  in w_e_end_ov_req()
1272 	if (peer_req)  in w_e_end_ov_req()
1273 		drbd_free_peer_req(device, peer_req);  in w_e_end_ov_req()
1291 	struct drbd_peer_request *peer_req = container_of(w, struct drbd_peer_request, w);  in w_e_end_ov_reply()  local
1292 	struct drbd_peer_device *peer_device = peer_req->peer_device;  in w_e_end_ov_reply()
1296 	sector_t sector = peer_req->i.sector;  in w_e_end_ov_reply()
1297 	unsigned int size = peer_req->i.size;  in w_e_end_ov_reply()
1303 		drbd_free_peer_req(device, peer_req);  in w_e_end_ov_reply()
1311 		drbd_rs_complete_io(device, peer_req->i.sector);  in w_e_end_ov_reply()
1315 	di = peer_req->digest;  in w_e_end_ov_reply()
1317 	if (likely((peer_req->flags & EE_WAS_ERROR) == 0)) {  in w_e_end_ov_reply()
1321 			drbd_csum_ee(peer_device->connection->verify_tfm, peer_req, digest);  in w_e_end_ov_reply()
1334 	drbd_free_peer_req(device, peer_req);  in w_e_end_ov_reply()