Lines Matching refs:mg
555 struct dm_cache_migration *mg; in alloc_migration() local
557 mg = mempool_alloc(&cache->migration_pool, GFP_NOIO); in alloc_migration()
559 memset(mg, 0, sizeof(*mg)); in alloc_migration()
561 mg->cache = cache; in alloc_migration()
564 return mg; in alloc_migration()
567 static void free_migration(struct dm_cache_migration *mg) in free_migration() argument
569 struct cache *cache = mg->cache; in free_migration()
574 mempool_free(mg, &cache->migration_pool); in free_migration()
1163 static void quiesce(struct dm_cache_migration *mg, in quiesce() argument
1166 init_continuation(&mg->k, continuation); in quiesce()
1167 dm_cell_quiesce_v2(mg->cache->prison, mg->cell, &mg->k.ws); in quiesce()
1178 struct dm_cache_migration *mg = container_of(context, struct dm_cache_migration, k); in copy_complete() local
1181 mg->k.input = BLK_STS_IOERR; in copy_complete()
1183 queue_continuation(mg->cache->wq, &mg->k); in copy_complete()
1186 static void copy(struct dm_cache_migration *mg, bool promote) in copy() argument
1189 struct cache *cache = mg->cache; in copy()
1192 o_region.sector = from_oblock(mg->op->oblock) * cache->sectors_per_block; in copy()
1196 c_region.sector = from_cblock(mg->op->cblock) * cache->sectors_per_block; in copy()
1200 dm_kcopyd_copy(cache->copier, &o_region, 1, &c_region, 0, copy_complete, &mg->k); in copy()
1202 dm_kcopyd_copy(cache->copier, &c_region, 1, &o_region, 0, copy_complete, &mg->k); in copy()
1216 struct dm_cache_migration *mg = bio->bi_private; in overwrite_endio() local
1217 struct cache *cache = mg->cache; in overwrite_endio()
1223 mg->k.input = bio->bi_status; in overwrite_endio()
1225 queue_continuation(cache->wq, &mg->k); in overwrite_endio()
1228 static void overwrite(struct dm_cache_migration *mg, in overwrite() argument
1231 struct bio *bio = mg->overwrite_bio; in overwrite()
1234 dm_hook_bio(&pb->hook_info, bio, overwrite_endio, mg); in overwrite()
1240 if (mg->op->op == POLICY_PROMOTE) in overwrite()
1241 remap_to_cache(mg->cache, bio, mg->op->cblock); in overwrite()
1243 remap_to_origin(mg->cache, bio); in overwrite()
1245 init_continuation(&mg->k, continuation); in overwrite()
1246 accounted_request(mg->cache, bio); in overwrite()
1260 static void mg_complete(struct dm_cache_migration *mg, bool success) in mg_complete() argument
1263 struct cache *cache = mg->cache; in mg_complete()
1264 struct policy_work *op = mg->op; in mg_complete()
1275 if (mg->overwrite_bio) { in mg_complete()
1278 else if (mg->k.input) in mg_complete()
1279 mg->overwrite_bio->bi_status = mg->k.input; in mg_complete()
1281 mg->overwrite_bio->bi_status = BLK_STS_IOERR; in mg_complete()
1282 bio_endio(mg->overwrite_bio); in mg_complete()
1309 if (mg->cell) { in mg_complete()
1310 if (dm_cell_unlock_v2(cache->prison, mg->cell, &bios)) in mg_complete()
1311 free_prison_cell(cache, mg->cell); in mg_complete()
1314 free_migration(mg); in mg_complete()
1323 struct dm_cache_migration *mg = ws_to_mg(ws); in mg_success() local
1324 mg_complete(mg, mg->k.input == 0); in mg_success()
1330 struct dm_cache_migration *mg = ws_to_mg(ws); in mg_update_metadata() local
1331 struct cache *cache = mg->cache; in mg_update_metadata()
1332 struct policy_work *op = mg->op; in mg_update_metadata()
1342 mg_complete(mg, false); in mg_update_metadata()
1345 mg_complete(mg, true); in mg_update_metadata()
1355 mg_complete(mg, false); in mg_update_metadata()
1378 init_continuation(&mg->k, mg_success); in mg_update_metadata()
1379 continue_after_commit(&cache->committer, &mg->k); in mg_update_metadata()
1384 mg_complete(mg, true); in mg_update_metadata()
1391 struct dm_cache_migration *mg = ws_to_mg(ws); in mg_update_metadata_after_copy() local
1396 if (mg->k.input) in mg_update_metadata_after_copy()
1397 mg_complete(mg, false); in mg_update_metadata_after_copy()
1405 struct dm_cache_migration *mg = ws_to_mg(ws); in mg_upgrade_lock() local
1410 if (mg->k.input) in mg_upgrade_lock()
1411 mg_complete(mg, false); in mg_upgrade_lock()
1417 r = dm_cell_lock_promote_v2(mg->cache->prison, mg->cell, in mg_upgrade_lock()
1420 mg_complete(mg, false); in mg_upgrade_lock()
1423 quiesce(mg, mg_update_metadata); in mg_upgrade_lock()
1432 struct dm_cache_migration *mg = ws_to_mg(ws); in mg_full_copy() local
1433 struct cache *cache = mg->cache; in mg_full_copy()
1434 struct policy_work *op = mg->op; in mg_full_copy()
1443 init_continuation(&mg->k, mg_upgrade_lock); in mg_full_copy()
1444 copy(mg, is_policy_promote); in mg_full_copy()
1449 struct dm_cache_migration *mg = ws_to_mg(ws); in mg_copy() local
1451 if (mg->overwrite_bio) { in mg_copy()
1457 if (!optimisable_bio(mg->cache, mg->overwrite_bio, mg->op->oblock)) { in mg_copy()
1461 bool rb = bio_detain_shared(mg->cache, mg->op->oblock, mg->overwrite_bio); in mg_copy()
1463 mg->overwrite_bio = NULL; in mg_copy()
1464 inc_io_migrations(mg->cache); in mg_copy()
1476 overwrite(mg, mg_update_metadata_after_copy); in mg_copy()
1482 static int mg_lock_writes(struct dm_cache_migration *mg) in mg_lock_writes() argument
1486 struct cache *cache = mg->cache; in mg_lock_writes()
1496 build_key(mg->op->oblock, oblock_succ(mg->op->oblock), &key); in mg_lock_writes()
1498 mg->overwrite_bio ? READ_WRITE_LOCK_LEVEL : WRITE_LOCK_LEVEL, in mg_lock_writes()
1499 prealloc, &mg->cell); in mg_lock_writes()
1502 mg_complete(mg, false); in mg_lock_writes()
1506 if (mg->cell != prealloc) in mg_lock_writes()
1510 mg_copy(&mg->k.ws); in mg_lock_writes()
1512 quiesce(mg, mg_copy); in mg_lock_writes()
1519 struct dm_cache_migration *mg; in mg_start() local
1526 mg = alloc_migration(cache); in mg_start()
1528 mg->op = op; in mg_start()
1529 mg->overwrite_bio = bio; in mg_start()
1534 return mg_lock_writes(mg); in mg_start()
1541 static void invalidate_complete(struct dm_cache_migration *mg, bool success) in invalidate_complete() argument
1544 struct cache *cache = mg->cache; in invalidate_complete()
1547 if (dm_cell_unlock_v2(cache->prison, mg->cell, &bios)) in invalidate_complete()
1548 free_prison_cell(cache, mg->cell); in invalidate_complete()
1550 if (!success && mg->overwrite_bio) in invalidate_complete()
1551 bio_io_error(mg->overwrite_bio); in invalidate_complete()
1553 free_migration(mg); in invalidate_complete()
1561 struct dm_cache_migration *mg = ws_to_mg(ws); in invalidate_completed() local
1562 invalidate_complete(mg, !mg->k.input); in invalidate_completed()
1591 struct dm_cache_migration *mg = ws_to_mg(ws); in invalidate_remove() local
1592 struct cache *cache = mg->cache; in invalidate_remove()
1594 r = invalidate_cblock(cache, mg->invalidate_cblock); in invalidate_remove()
1596 invalidate_complete(mg, false); in invalidate_remove()
1600 init_continuation(&mg->k, invalidate_completed); in invalidate_remove()
1601 continue_after_commit(&cache->committer, &mg->k); in invalidate_remove()
1602 remap_to_origin_clear_discard(cache, mg->overwrite_bio, mg->invalidate_oblock); in invalidate_remove()
1603 mg->overwrite_bio = NULL; in invalidate_remove()
1607 static int invalidate_lock(struct dm_cache_migration *mg) in invalidate_lock() argument
1611 struct cache *cache = mg->cache; in invalidate_lock()
1616 build_key(mg->invalidate_oblock, oblock_succ(mg->invalidate_oblock), &key); in invalidate_lock()
1618 READ_WRITE_LOCK_LEVEL, prealloc, &mg->cell); in invalidate_lock()
1621 invalidate_complete(mg, false); in invalidate_lock()
1625 if (mg->cell != prealloc) in invalidate_lock()
1629 quiesce(mg, invalidate_remove); in invalidate_lock()
1636 init_continuation(&mg->k, invalidate_remove); in invalidate_lock()
1637 queue_work(cache->wq, &mg->k.ws); in invalidate_lock()
1646 struct dm_cache_migration *mg; in invalidate_start() local
1651 mg = alloc_migration(cache); in invalidate_start()
1653 mg->overwrite_bio = bio; in invalidate_start()
1654 mg->invalidate_cblock = cblock; in invalidate_start()
1655 mg->invalidate_oblock = oblock; in invalidate_start()
1657 return invalidate_lock(mg); in invalidate_start()