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()
1067 static void quiesce(struct dm_cache_migration *mg, in quiesce() argument
1070 init_continuation(&mg->k, continuation); in quiesce()
1071 dm_cell_quiesce_v2(mg->cache->prison, mg->cell, &mg->k.ws); in quiesce()
1082 struct dm_cache_migration *mg = container_of(context, struct dm_cache_migration, k); in copy_complete() local
1085 mg->k.input = BLK_STS_IOERR; in copy_complete()
1087 queue_continuation(mg->cache->wq, &mg->k); in copy_complete()
1090 static void copy(struct dm_cache_migration *mg, bool promote) in copy() argument
1093 struct cache *cache = mg->cache; in copy()
1096 o_region.sector = from_oblock(mg->op->oblock) * cache->sectors_per_block; in copy()
1100 c_region.sector = from_cblock(mg->op->cblock) * cache->sectors_per_block; in copy()
1104 dm_kcopyd_copy(cache->copier, &o_region, 1, &c_region, 0, copy_complete, &mg->k); in copy()
1106 dm_kcopyd_copy(cache->copier, &c_region, 1, &o_region, 0, copy_complete, &mg->k); in copy()
1120 struct dm_cache_migration *mg = bio->bi_private; in overwrite_endio() local
1121 struct cache *cache = mg->cache; in overwrite_endio()
1127 mg->k.input = bio->bi_status; in overwrite_endio()
1129 queue_continuation(cache->wq, &mg->k); in overwrite_endio()
1132 static void overwrite(struct dm_cache_migration *mg, in overwrite() argument
1135 struct bio *bio = mg->overwrite_bio; in overwrite()
1138 dm_hook_bio(&pb->hook_info, bio, overwrite_endio, mg); in overwrite()
1144 if (mg->op->op == POLICY_PROMOTE) in overwrite()
1145 remap_to_cache(mg->cache, bio, mg->op->cblock); in overwrite()
1147 remap_to_origin(mg->cache, bio); in overwrite()
1149 init_continuation(&mg->k, continuation); in overwrite()
1150 accounted_request(mg->cache, bio); in overwrite()
1164 static void mg_complete(struct dm_cache_migration *mg, bool success) in mg_complete() argument
1167 struct cache *cache = mg->cache; in mg_complete()
1168 struct policy_work *op = mg->op; in mg_complete()
1179 if (mg->overwrite_bio) { in mg_complete()
1182 else if (mg->k.input) in mg_complete()
1183 mg->overwrite_bio->bi_status = mg->k.input; in mg_complete()
1185 mg->overwrite_bio->bi_status = BLK_STS_IOERR; in mg_complete()
1186 bio_endio(mg->overwrite_bio); in mg_complete()
1213 if (mg->cell) { in mg_complete()
1214 if (dm_cell_unlock_v2(cache->prison, mg->cell, &bios)) in mg_complete()
1215 free_prison_cell(cache, mg->cell); in mg_complete()
1218 free_migration(mg); in mg_complete()
1227 struct dm_cache_migration *mg = ws_to_mg(ws); in mg_success() local
1228 mg_complete(mg, mg->k.input == 0); in mg_success()
1234 struct dm_cache_migration *mg = ws_to_mg(ws); in mg_update_metadata() local
1235 struct cache *cache = mg->cache; in mg_update_metadata()
1236 struct policy_work *op = mg->op; in mg_update_metadata()
1246 mg_complete(mg, false); in mg_update_metadata()
1249 mg_complete(mg, true); in mg_update_metadata()
1259 mg_complete(mg, false); in mg_update_metadata()
1282 init_continuation(&mg->k, mg_success); in mg_update_metadata()
1283 continue_after_commit(&cache->committer, &mg->k); in mg_update_metadata()
1288 mg_complete(mg, true); in mg_update_metadata()
1295 struct dm_cache_migration *mg = ws_to_mg(ws); in mg_update_metadata_after_copy() local
1300 if (mg->k.input) in mg_update_metadata_after_copy()
1301 mg_complete(mg, false); in mg_update_metadata_after_copy()
1309 struct dm_cache_migration *mg = ws_to_mg(ws); in mg_upgrade_lock() local
1314 if (mg->k.input) in mg_upgrade_lock()
1315 mg_complete(mg, false); in mg_upgrade_lock()
1321 r = dm_cell_lock_promote_v2(mg->cache->prison, mg->cell, in mg_upgrade_lock()
1324 mg_complete(mg, false); in mg_upgrade_lock()
1327 quiesce(mg, mg_update_metadata); in mg_upgrade_lock()
1336 struct dm_cache_migration *mg = ws_to_mg(ws); in mg_full_copy() local
1337 struct cache *cache = mg->cache; in mg_full_copy()
1338 struct policy_work *op = mg->op; in mg_full_copy()
1347 init_continuation(&mg->k, mg_upgrade_lock); in mg_full_copy()
1348 copy(mg, is_policy_promote); in mg_full_copy()
1353 struct dm_cache_migration *mg = ws_to_mg(ws); in mg_copy() local
1355 if (mg->overwrite_bio) { in mg_copy()
1361 if (!optimisable_bio(mg->cache, mg->overwrite_bio, mg->op->oblock)) { in mg_copy()
1365 bool rb = bio_detain_shared(mg->cache, mg->op->oblock, mg->overwrite_bio); in mg_copy()
1367 mg->overwrite_bio = NULL; in mg_copy()
1368 inc_io_migrations(mg->cache); in mg_copy()
1380 overwrite(mg, mg_update_metadata_after_copy); in mg_copy()
1386 static int mg_lock_writes(struct dm_cache_migration *mg) in mg_lock_writes() argument
1390 struct cache *cache = mg->cache; in mg_lock_writes()
1400 build_key(mg->op->oblock, oblock_succ(mg->op->oblock), &key); in mg_lock_writes()
1402 mg->overwrite_bio ? READ_WRITE_LOCK_LEVEL : WRITE_LOCK_LEVEL, in mg_lock_writes()
1403 prealloc, &mg->cell); in mg_lock_writes()
1406 mg_complete(mg, false); in mg_lock_writes()
1410 if (mg->cell != prealloc) in mg_lock_writes()
1414 mg_copy(&mg->k.ws); in mg_lock_writes()
1416 quiesce(mg, mg_copy); in mg_lock_writes()
1423 struct dm_cache_migration *mg; in mg_start() local
1430 mg = alloc_migration(cache); in mg_start()
1432 mg->op = op; in mg_start()
1433 mg->overwrite_bio = bio; in mg_start()
1438 return mg_lock_writes(mg); in mg_start()
1445 static void invalidate_complete(struct dm_cache_migration *mg, bool success) in invalidate_complete() argument
1448 struct cache *cache = mg->cache; in invalidate_complete()
1451 if (dm_cell_unlock_v2(cache->prison, mg->cell, &bios)) in invalidate_complete()
1452 free_prison_cell(cache, mg->cell); in invalidate_complete()
1454 if (!success && mg->overwrite_bio) in invalidate_complete()
1455 bio_io_error(mg->overwrite_bio); in invalidate_complete()
1457 free_migration(mg); in invalidate_complete()
1465 struct dm_cache_migration *mg = ws_to_mg(ws); in invalidate_completed() local
1466 invalidate_complete(mg, !mg->k.input); in invalidate_completed()
1495 struct dm_cache_migration *mg = ws_to_mg(ws); in invalidate_remove() local
1496 struct cache *cache = mg->cache; in invalidate_remove()
1498 r = invalidate_cblock(cache, mg->invalidate_cblock); in invalidate_remove()
1500 invalidate_complete(mg, false); in invalidate_remove()
1504 init_continuation(&mg->k, invalidate_completed); in invalidate_remove()
1505 continue_after_commit(&cache->committer, &mg->k); in invalidate_remove()
1506 remap_to_origin_clear_discard(cache, mg->overwrite_bio, mg->invalidate_oblock); in invalidate_remove()
1507 mg->overwrite_bio = NULL; in invalidate_remove()
1511 static int invalidate_lock(struct dm_cache_migration *mg) in invalidate_lock() argument
1515 struct cache *cache = mg->cache; in invalidate_lock()
1520 build_key(mg->invalidate_oblock, oblock_succ(mg->invalidate_oblock), &key); in invalidate_lock()
1522 READ_WRITE_LOCK_LEVEL, prealloc, &mg->cell); in invalidate_lock()
1525 invalidate_complete(mg, false); in invalidate_lock()
1529 if (mg->cell != prealloc) in invalidate_lock()
1533 quiesce(mg, invalidate_remove); in invalidate_lock()
1540 init_continuation(&mg->k, invalidate_remove); in invalidate_lock()
1541 queue_work(cache->wq, &mg->k.ws); in invalidate_lock()
1550 struct dm_cache_migration *mg; in invalidate_start() local
1555 mg = alloc_migration(cache); in invalidate_start()
1557 mg->overwrite_bio = bio; in invalidate_start()
1558 mg->invalidate_cblock = cblock; in invalidate_start()
1559 mg->invalidate_oblock = oblock; in invalidate_start()
1561 return invalidate_lock(mg); in invalidate_start()