Lines Matching refs:mg
477 struct dm_cache_migration *mg; in alloc_migration() local
479 mg = mempool_alloc(&cache->migration_pool, GFP_NOIO); in alloc_migration()
481 memset(mg, 0, sizeof(*mg)); in alloc_migration()
483 mg->cache = cache; in alloc_migration()
486 return mg; in alloc_migration()
489 static void free_migration(struct dm_cache_migration *mg) in free_migration() argument
491 struct cache *cache = mg->cache; in free_migration()
496 mempool_free(mg, &cache->migration_pool); in free_migration()
1071 static void quiesce(struct dm_cache_migration *mg, in quiesce() argument
1074 init_continuation(&mg->k, continuation); in quiesce()
1075 dm_cell_quiesce_v2(mg->cache->prison, mg->cell, &mg->k.ws); in quiesce()
1087 struct dm_cache_migration *mg = container_of(context, struct dm_cache_migration, k); in copy_complete() local
1090 mg->k.input = BLK_STS_IOERR; in copy_complete()
1092 queue_continuation(mg->cache->wq, &mg->k); in copy_complete()
1095 static void copy(struct dm_cache_migration *mg, bool promote) in copy() argument
1098 struct cache *cache = mg->cache; in copy()
1101 o_region.sector = from_oblock(mg->op->oblock) * cache->sectors_per_block; in copy()
1105 c_region.sector = from_cblock(mg->op->cblock) * cache->sectors_per_block; in copy()
1109 dm_kcopyd_copy(cache->copier, &o_region, 1, &c_region, 0, copy_complete, &mg->k); in copy()
1111 dm_kcopyd_copy(cache->copier, &c_region, 1, &o_region, 0, copy_complete, &mg->k); in copy()
1125 struct dm_cache_migration *mg = bio->bi_private; in overwrite_endio() local
1126 struct cache *cache = mg->cache; in overwrite_endio()
1132 mg->k.input = bio->bi_status; in overwrite_endio()
1134 queue_continuation(cache->wq, &mg->k); in overwrite_endio()
1137 static void overwrite(struct dm_cache_migration *mg, in overwrite() argument
1140 struct bio *bio = mg->overwrite_bio; in overwrite()
1143 dm_hook_bio(&pb->hook_info, bio, overwrite_endio, mg); in overwrite()
1149 if (mg->op->op == POLICY_PROMOTE) in overwrite()
1150 remap_to_cache(mg->cache, bio, mg->op->cblock); in overwrite()
1152 remap_to_origin(mg->cache, bio); in overwrite()
1154 init_continuation(&mg->k, continuation); in overwrite()
1155 accounted_request(mg->cache, bio); in overwrite()
1169 static void mg_complete(struct dm_cache_migration *mg, bool success) in mg_complete() argument
1172 struct cache *cache = mg->cache; in mg_complete()
1173 struct policy_work *op = mg->op; in mg_complete()
1184 if (mg->overwrite_bio) { in mg_complete()
1187 else if (mg->k.input) in mg_complete()
1188 mg->overwrite_bio->bi_status = mg->k.input; in mg_complete()
1190 mg->overwrite_bio->bi_status = BLK_STS_IOERR; in mg_complete()
1191 bio_endio(mg->overwrite_bio); in mg_complete()
1218 if (mg->cell) { in mg_complete()
1219 if (dm_cell_unlock_v2(cache->prison, mg->cell, &bios)) in mg_complete()
1220 free_prison_cell(cache, mg->cell); in mg_complete()
1223 free_migration(mg); in mg_complete()
1232 struct dm_cache_migration *mg = ws_to_mg(ws); in mg_success() local
1234 mg_complete(mg, mg->k.input == 0); in mg_success()
1240 struct dm_cache_migration *mg = ws_to_mg(ws); in mg_update_metadata() local
1241 struct cache *cache = mg->cache; in mg_update_metadata()
1242 struct policy_work *op = mg->op; in mg_update_metadata()
1252 mg_complete(mg, false); in mg_update_metadata()
1255 mg_complete(mg, true); in mg_update_metadata()
1265 mg_complete(mg, false); in mg_update_metadata()
1288 init_continuation(&mg->k, mg_success); in mg_update_metadata()
1289 continue_after_commit(&cache->committer, &mg->k); in mg_update_metadata()
1294 mg_complete(mg, true); in mg_update_metadata()
1301 struct dm_cache_migration *mg = ws_to_mg(ws); in mg_update_metadata_after_copy() local
1306 if (mg->k.input) in mg_update_metadata_after_copy()
1307 mg_complete(mg, false); in mg_update_metadata_after_copy()
1315 struct dm_cache_migration *mg = ws_to_mg(ws); in mg_upgrade_lock() local
1320 if (mg->k.input) in mg_upgrade_lock()
1321 mg_complete(mg, false); in mg_upgrade_lock()
1327 r = dm_cell_lock_promote_v2(mg->cache->prison, mg->cell, in mg_upgrade_lock()
1330 mg_complete(mg, false); in mg_upgrade_lock()
1333 quiesce(mg, mg_update_metadata); in mg_upgrade_lock()
1342 struct dm_cache_migration *mg = ws_to_mg(ws); in mg_full_copy() local
1343 struct cache *cache = mg->cache; in mg_full_copy()
1344 struct policy_work *op = mg->op; in mg_full_copy()
1353 init_continuation(&mg->k, mg_upgrade_lock); in mg_full_copy()
1354 copy(mg, is_policy_promote); in mg_full_copy()
1359 struct dm_cache_migration *mg = ws_to_mg(ws); in mg_copy() local
1361 if (mg->overwrite_bio) { in mg_copy()
1367 if (!optimisable_bio(mg->cache, mg->overwrite_bio, mg->op->oblock)) { in mg_copy()
1371 bool rb = bio_detain_shared(mg->cache, mg->op->oblock, mg->overwrite_bio); in mg_copy()
1374 mg->overwrite_bio = NULL; in mg_copy()
1375 inc_io_migrations(mg->cache); in mg_copy()
1387 overwrite(mg, mg_update_metadata_after_copy); in mg_copy()
1393 static int mg_lock_writes(struct dm_cache_migration *mg) in mg_lock_writes() argument
1397 struct cache *cache = mg->cache; in mg_lock_writes()
1407 build_key(mg->op->oblock, oblock_succ(mg->op->oblock), &key); in mg_lock_writes()
1409 mg->overwrite_bio ? READ_WRITE_LOCK_LEVEL : WRITE_LOCK_LEVEL, in mg_lock_writes()
1410 prealloc, &mg->cell); in mg_lock_writes()
1413 mg_complete(mg, false); in mg_lock_writes()
1417 if (mg->cell != prealloc) in mg_lock_writes()
1421 mg_copy(&mg->k.ws); in mg_lock_writes()
1423 quiesce(mg, mg_copy); in mg_lock_writes()
1430 struct dm_cache_migration *mg; in mg_start() local
1437 mg = alloc_migration(cache); in mg_start()
1439 mg->op = op; in mg_start()
1440 mg->overwrite_bio = bio; in mg_start()
1445 return mg_lock_writes(mg); in mg_start()
1454 static void invalidate_complete(struct dm_cache_migration *mg, bool success) in invalidate_complete() argument
1457 struct cache *cache = mg->cache; in invalidate_complete()
1460 if (dm_cell_unlock_v2(cache->prison, mg->cell, &bios)) in invalidate_complete()
1461 free_prison_cell(cache, mg->cell); in invalidate_complete()
1463 if (!success && mg->overwrite_bio) in invalidate_complete()
1464 bio_io_error(mg->overwrite_bio); in invalidate_complete()
1466 free_migration(mg); in invalidate_complete()
1474 struct dm_cache_migration *mg = ws_to_mg(ws); in invalidate_completed() local
1476 invalidate_complete(mg, !mg->k.input); in invalidate_completed()
1507 struct dm_cache_migration *mg = ws_to_mg(ws); in invalidate_remove() local
1508 struct cache *cache = mg->cache; in invalidate_remove()
1510 r = invalidate_cblock(cache, mg->invalidate_cblock); in invalidate_remove()
1512 invalidate_complete(mg, false); in invalidate_remove()
1516 init_continuation(&mg->k, invalidate_completed); in invalidate_remove()
1517 continue_after_commit(&cache->committer, &mg->k); in invalidate_remove()
1518 remap_to_origin_clear_discard(cache, mg->overwrite_bio, mg->invalidate_oblock); in invalidate_remove()
1519 mg->overwrite_bio = NULL; in invalidate_remove()
1523 static int invalidate_lock(struct dm_cache_migration *mg) in invalidate_lock() argument
1527 struct cache *cache = mg->cache; in invalidate_lock()
1532 build_key(mg->invalidate_oblock, oblock_succ(mg->invalidate_oblock), &key); in invalidate_lock()
1534 READ_WRITE_LOCK_LEVEL, prealloc, &mg->cell); in invalidate_lock()
1537 invalidate_complete(mg, false); in invalidate_lock()
1541 if (mg->cell != prealloc) in invalidate_lock()
1545 quiesce(mg, invalidate_remove); in invalidate_lock()
1552 init_continuation(&mg->k, invalidate_remove); in invalidate_lock()
1553 queue_work(cache->wq, &mg->k.ws); in invalidate_lock()
1562 struct dm_cache_migration *mg; in invalidate_start() local
1567 mg = alloc_migration(cache); in invalidate_start()
1569 mg->overwrite_bio = bio; in invalidate_start()
1570 mg->invalidate_cblock = cblock; in invalidate_start()
1571 mg->invalidate_oblock = oblock; in invalidate_start()
1573 return invalidate_lock(mg); in invalidate_start()