Lines Matching refs:mg
476 struct dm_cache_migration *mg; in alloc_migration() local
478 mg = mempool_alloc(&cache->migration_pool, GFP_NOIO); in alloc_migration()
480 memset(mg, 0, sizeof(*mg)); in alloc_migration()
482 mg->cache = cache; in alloc_migration()
485 return mg; in alloc_migration()
488 static void free_migration(struct dm_cache_migration *mg) in free_migration() argument
490 struct cache *cache = mg->cache; in free_migration()
495 mempool_free(mg, &cache->migration_pool); in free_migration()
1059 static void quiesce(struct dm_cache_migration *mg, in quiesce() argument
1062 init_continuation(&mg->k, continuation); in quiesce()
1063 dm_cell_quiesce_v2(mg->cache->prison, mg->cell, &mg->k.ws); in quiesce()
1074 struct dm_cache_migration *mg = container_of(context, struct dm_cache_migration, k); in copy_complete() local
1077 mg->k.input = BLK_STS_IOERR; in copy_complete()
1079 queue_continuation(mg->cache->wq, &mg->k); in copy_complete()
1082 static void copy(struct dm_cache_migration *mg, bool promote) in copy() argument
1085 struct cache *cache = mg->cache; in copy()
1088 o_region.sector = from_oblock(mg->op->oblock) * cache->sectors_per_block; in copy()
1092 c_region.sector = from_cblock(mg->op->cblock) * cache->sectors_per_block; in copy()
1096 dm_kcopyd_copy(cache->copier, &o_region, 1, &c_region, 0, copy_complete, &mg->k); in copy()
1098 dm_kcopyd_copy(cache->copier, &c_region, 1, &o_region, 0, copy_complete, &mg->k); in copy()
1112 struct dm_cache_migration *mg = bio->bi_private; in overwrite_endio() local
1113 struct cache *cache = mg->cache; in overwrite_endio()
1119 mg->k.input = bio->bi_status; in overwrite_endio()
1121 queue_continuation(cache->wq, &mg->k); in overwrite_endio()
1124 static void overwrite(struct dm_cache_migration *mg, in overwrite() argument
1127 struct bio *bio = mg->overwrite_bio; in overwrite()
1130 dm_hook_bio(&pb->hook_info, bio, overwrite_endio, mg); in overwrite()
1136 if (mg->op->op == POLICY_PROMOTE) in overwrite()
1137 remap_to_cache(mg->cache, bio, mg->op->cblock); in overwrite()
1139 remap_to_origin(mg->cache, bio); in overwrite()
1141 init_continuation(&mg->k, continuation); in overwrite()
1142 accounted_request(mg->cache, bio); in overwrite()
1156 static void mg_complete(struct dm_cache_migration *mg, bool success) in mg_complete() argument
1159 struct cache *cache = mg->cache; in mg_complete()
1160 struct policy_work *op = mg->op; in mg_complete()
1171 if (mg->overwrite_bio) { in mg_complete()
1174 else if (mg->k.input) in mg_complete()
1175 mg->overwrite_bio->bi_status = mg->k.input; in mg_complete()
1177 mg->overwrite_bio->bi_status = BLK_STS_IOERR; in mg_complete()
1178 bio_endio(mg->overwrite_bio); in mg_complete()
1205 if (mg->cell) { in mg_complete()
1206 if (dm_cell_unlock_v2(cache->prison, mg->cell, &bios)) in mg_complete()
1207 free_prison_cell(cache, mg->cell); in mg_complete()
1210 free_migration(mg); in mg_complete()
1219 struct dm_cache_migration *mg = ws_to_mg(ws); in mg_success() local
1220 mg_complete(mg, mg->k.input == 0); in mg_success()
1226 struct dm_cache_migration *mg = ws_to_mg(ws); in mg_update_metadata() local
1227 struct cache *cache = mg->cache; in mg_update_metadata()
1228 struct policy_work *op = mg->op; in mg_update_metadata()
1238 mg_complete(mg, false); in mg_update_metadata()
1241 mg_complete(mg, true); in mg_update_metadata()
1251 mg_complete(mg, false); in mg_update_metadata()
1274 init_continuation(&mg->k, mg_success); in mg_update_metadata()
1275 continue_after_commit(&cache->committer, &mg->k); in mg_update_metadata()
1280 mg_complete(mg, true); in mg_update_metadata()
1287 struct dm_cache_migration *mg = ws_to_mg(ws); in mg_update_metadata_after_copy() local
1292 if (mg->k.input) in mg_update_metadata_after_copy()
1293 mg_complete(mg, false); in mg_update_metadata_after_copy()
1301 struct dm_cache_migration *mg = ws_to_mg(ws); in mg_upgrade_lock() local
1306 if (mg->k.input) in mg_upgrade_lock()
1307 mg_complete(mg, false); in mg_upgrade_lock()
1313 r = dm_cell_lock_promote_v2(mg->cache->prison, mg->cell, in mg_upgrade_lock()
1316 mg_complete(mg, false); in mg_upgrade_lock()
1319 quiesce(mg, mg_update_metadata); in mg_upgrade_lock()
1328 struct dm_cache_migration *mg = ws_to_mg(ws); in mg_full_copy() local
1329 struct cache *cache = mg->cache; in mg_full_copy()
1330 struct policy_work *op = mg->op; in mg_full_copy()
1339 init_continuation(&mg->k, mg_upgrade_lock); in mg_full_copy()
1340 copy(mg, is_policy_promote); in mg_full_copy()
1345 struct dm_cache_migration *mg = ws_to_mg(ws); in mg_copy() local
1347 if (mg->overwrite_bio) { in mg_copy()
1353 if (!optimisable_bio(mg->cache, mg->overwrite_bio, mg->op->oblock)) { in mg_copy()
1357 bool rb = bio_detain_shared(mg->cache, mg->op->oblock, mg->overwrite_bio); in mg_copy()
1359 mg->overwrite_bio = NULL; in mg_copy()
1360 inc_io_migrations(mg->cache); in mg_copy()
1372 overwrite(mg, mg_update_metadata_after_copy); in mg_copy()
1378 static int mg_lock_writes(struct dm_cache_migration *mg) in mg_lock_writes() argument
1382 struct cache *cache = mg->cache; in mg_lock_writes()
1392 build_key(mg->op->oblock, oblock_succ(mg->op->oblock), &key); in mg_lock_writes()
1394 mg->overwrite_bio ? READ_WRITE_LOCK_LEVEL : WRITE_LOCK_LEVEL, in mg_lock_writes()
1395 prealloc, &mg->cell); in mg_lock_writes()
1398 mg_complete(mg, false); in mg_lock_writes()
1402 if (mg->cell != prealloc) in mg_lock_writes()
1406 mg_copy(&mg->k.ws); in mg_lock_writes()
1408 quiesce(mg, mg_copy); in mg_lock_writes()
1415 struct dm_cache_migration *mg; in mg_start() local
1422 mg = alloc_migration(cache); in mg_start()
1424 mg->op = op; in mg_start()
1425 mg->overwrite_bio = bio; in mg_start()
1430 return mg_lock_writes(mg); in mg_start()
1437 static void invalidate_complete(struct dm_cache_migration *mg, bool success) in invalidate_complete() argument
1440 struct cache *cache = mg->cache; in invalidate_complete()
1443 if (dm_cell_unlock_v2(cache->prison, mg->cell, &bios)) in invalidate_complete()
1444 free_prison_cell(cache, mg->cell); in invalidate_complete()
1446 if (!success && mg->overwrite_bio) in invalidate_complete()
1447 bio_io_error(mg->overwrite_bio); in invalidate_complete()
1449 free_migration(mg); in invalidate_complete()
1457 struct dm_cache_migration *mg = ws_to_mg(ws); in invalidate_completed() local
1458 invalidate_complete(mg, !mg->k.input); in invalidate_completed()
1487 struct dm_cache_migration *mg = ws_to_mg(ws); in invalidate_remove() local
1488 struct cache *cache = mg->cache; in invalidate_remove()
1490 r = invalidate_cblock(cache, mg->invalidate_cblock); in invalidate_remove()
1492 invalidate_complete(mg, false); in invalidate_remove()
1496 init_continuation(&mg->k, invalidate_completed); in invalidate_remove()
1497 continue_after_commit(&cache->committer, &mg->k); in invalidate_remove()
1498 remap_to_origin_clear_discard(cache, mg->overwrite_bio, mg->invalidate_oblock); in invalidate_remove()
1499 mg->overwrite_bio = NULL; in invalidate_remove()
1503 static int invalidate_lock(struct dm_cache_migration *mg) in invalidate_lock() argument
1507 struct cache *cache = mg->cache; in invalidate_lock()
1512 build_key(mg->invalidate_oblock, oblock_succ(mg->invalidate_oblock), &key); in invalidate_lock()
1514 READ_WRITE_LOCK_LEVEL, prealloc, &mg->cell); in invalidate_lock()
1517 invalidate_complete(mg, false); in invalidate_lock()
1521 if (mg->cell != prealloc) in invalidate_lock()
1525 quiesce(mg, invalidate_remove); in invalidate_lock()
1532 init_continuation(&mg->k, invalidate_remove); in invalidate_lock()
1533 queue_work(cache->wq, &mg->k.ws); in invalidate_lock()
1542 struct dm_cache_migration *mg; in invalidate_start() local
1547 mg = alloc_migration(cache); in invalidate_start()
1549 mg->overwrite_bio = bio; in invalidate_start()
1550 mg->invalidate_cblock = cblock; in invalidate_start()
1551 mg->invalidate_oblock = oblock; in invalidate_start()
1553 return invalidate_lock(mg); in invalidate_start()