Lines Matching refs:mg
483 struct dm_cache_migration *mg; in alloc_migration() local
485 mg = mempool_alloc(&cache->migration_pool, GFP_NOIO); in alloc_migration()
487 memset(mg, 0, sizeof(*mg)); in alloc_migration()
489 mg->cache = cache; in alloc_migration()
492 return mg; in alloc_migration()
495 static void free_migration(struct dm_cache_migration *mg) in free_migration() argument
497 struct cache *cache = mg->cache; in free_migration()
502 mempool_free(mg, &cache->migration_pool); in free_migration()
1076 static void quiesce(struct dm_cache_migration *mg, in quiesce() argument
1079 init_continuation(&mg->k, continuation); in quiesce()
1080 dm_cell_quiesce_v2(mg->cache->prison, mg->cell, &mg->k.ws); in quiesce()
1092 struct dm_cache_migration *mg = container_of(context, struct dm_cache_migration, k); in copy_complete() local
1095 mg->k.input = BLK_STS_IOERR; in copy_complete()
1097 queue_continuation(mg->cache->wq, &mg->k); in copy_complete()
1100 static void copy(struct dm_cache_migration *mg, bool promote) in copy() argument
1103 struct cache *cache = mg->cache; in copy()
1106 o_region.sector = from_oblock(mg->op->oblock) * cache->sectors_per_block; in copy()
1110 c_region.sector = from_cblock(mg->op->cblock) * cache->sectors_per_block; in copy()
1114 dm_kcopyd_copy(cache->copier, &o_region, 1, &c_region, 0, copy_complete, &mg->k); in copy()
1116 dm_kcopyd_copy(cache->copier, &c_region, 1, &o_region, 0, copy_complete, &mg->k); in copy()
1130 struct dm_cache_migration *mg = bio->bi_private; in overwrite_endio() local
1131 struct cache *cache = mg->cache; in overwrite_endio()
1137 mg->k.input = bio->bi_status; in overwrite_endio()
1139 queue_continuation(cache->wq, &mg->k); in overwrite_endio()
1142 static void overwrite(struct dm_cache_migration *mg, in overwrite() argument
1145 struct bio *bio = mg->overwrite_bio; in overwrite()
1148 dm_hook_bio(&pb->hook_info, bio, overwrite_endio, mg); in overwrite()
1154 if (mg->op->op == POLICY_PROMOTE) in overwrite()
1155 remap_to_cache(mg->cache, bio, mg->op->cblock); in overwrite()
1157 remap_to_origin(mg->cache, bio); in overwrite()
1159 init_continuation(&mg->k, continuation); in overwrite()
1160 accounted_request(mg->cache, bio); in overwrite()
1174 static void mg_complete(struct dm_cache_migration *mg, bool success) in mg_complete() argument
1177 struct cache *cache = mg->cache; in mg_complete()
1178 struct policy_work *op = mg->op; in mg_complete()
1189 if (mg->overwrite_bio) { in mg_complete()
1192 else if (mg->k.input) in mg_complete()
1193 mg->overwrite_bio->bi_status = mg->k.input; in mg_complete()
1195 mg->overwrite_bio->bi_status = BLK_STS_IOERR; in mg_complete()
1196 bio_endio(mg->overwrite_bio); in mg_complete()
1223 if (mg->cell) { in mg_complete()
1224 if (dm_cell_unlock_v2(cache->prison, mg->cell, &bios)) in mg_complete()
1225 free_prison_cell(cache, mg->cell); in mg_complete()
1228 free_migration(mg); in mg_complete()
1237 struct dm_cache_migration *mg = ws_to_mg(ws); in mg_success() local
1239 mg_complete(mg, mg->k.input == 0); in mg_success()
1245 struct dm_cache_migration *mg = ws_to_mg(ws); in mg_update_metadata() local
1246 struct cache *cache = mg->cache; in mg_update_metadata()
1247 struct policy_work *op = mg->op; in mg_update_metadata()
1257 mg_complete(mg, false); in mg_update_metadata()
1260 mg_complete(mg, true); in mg_update_metadata()
1270 mg_complete(mg, false); in mg_update_metadata()
1293 init_continuation(&mg->k, mg_success); in mg_update_metadata()
1294 continue_after_commit(&cache->committer, &mg->k); in mg_update_metadata()
1299 mg_complete(mg, true); in mg_update_metadata()
1306 struct dm_cache_migration *mg = ws_to_mg(ws); in mg_update_metadata_after_copy() local
1311 if (mg->k.input) in mg_update_metadata_after_copy()
1312 mg_complete(mg, false); in mg_update_metadata_after_copy()
1320 struct dm_cache_migration *mg = ws_to_mg(ws); in mg_upgrade_lock() local
1325 if (mg->k.input) in mg_upgrade_lock()
1326 mg_complete(mg, false); in mg_upgrade_lock()
1332 r = dm_cell_lock_promote_v2(mg->cache->prison, mg->cell, in mg_upgrade_lock()
1335 mg_complete(mg, false); in mg_upgrade_lock()
1338 quiesce(mg, mg_update_metadata); in mg_upgrade_lock()
1347 struct dm_cache_migration *mg = ws_to_mg(ws); in mg_full_copy() local
1348 struct cache *cache = mg->cache; in mg_full_copy()
1349 struct policy_work *op = mg->op; in mg_full_copy()
1358 init_continuation(&mg->k, mg_upgrade_lock); in mg_full_copy()
1359 copy(mg, is_policy_promote); in mg_full_copy()
1364 struct dm_cache_migration *mg = ws_to_mg(ws); in mg_copy() local
1366 if (mg->overwrite_bio) { in mg_copy()
1372 if (!optimisable_bio(mg->cache, mg->overwrite_bio, mg->op->oblock)) { in mg_copy()
1376 bool rb = bio_detain_shared(mg->cache, mg->op->oblock, mg->overwrite_bio); in mg_copy()
1379 mg->overwrite_bio = NULL; in mg_copy()
1380 inc_io_migrations(mg->cache); in mg_copy()
1392 overwrite(mg, mg_update_metadata_after_copy); in mg_copy()
1398 static int mg_lock_writes(struct dm_cache_migration *mg) in mg_lock_writes() argument
1402 struct cache *cache = mg->cache; in mg_lock_writes()
1412 build_key(mg->op->oblock, oblock_succ(mg->op->oblock), &key); in mg_lock_writes()
1414 mg->overwrite_bio ? READ_WRITE_LOCK_LEVEL : WRITE_LOCK_LEVEL, in mg_lock_writes()
1415 prealloc, &mg->cell); in mg_lock_writes()
1418 mg_complete(mg, false); in mg_lock_writes()
1422 if (mg->cell != prealloc) in mg_lock_writes()
1426 mg_copy(&mg->k.ws); in mg_lock_writes()
1428 quiesce(mg, mg_copy); in mg_lock_writes()
1435 struct dm_cache_migration *mg; in mg_start() local
1442 mg = alloc_migration(cache); in mg_start()
1444 mg->op = op; in mg_start()
1445 mg->overwrite_bio = bio; in mg_start()
1450 return mg_lock_writes(mg); in mg_start()
1459 static void invalidate_complete(struct dm_cache_migration *mg, bool success) in invalidate_complete() argument
1462 struct cache *cache = mg->cache; in invalidate_complete()
1465 if (dm_cell_unlock_v2(cache->prison, mg->cell, &bios)) in invalidate_complete()
1466 free_prison_cell(cache, mg->cell); in invalidate_complete()
1468 if (!success && mg->overwrite_bio) in invalidate_complete()
1469 bio_io_error(mg->overwrite_bio); in invalidate_complete()
1471 free_migration(mg); in invalidate_complete()
1479 struct dm_cache_migration *mg = ws_to_mg(ws); in invalidate_completed() local
1481 invalidate_complete(mg, !mg->k.input); in invalidate_completed()
1512 struct dm_cache_migration *mg = ws_to_mg(ws); in invalidate_remove() local
1513 struct cache *cache = mg->cache; in invalidate_remove()
1515 r = invalidate_cblock(cache, mg->invalidate_cblock); in invalidate_remove()
1517 invalidate_complete(mg, false); in invalidate_remove()
1521 init_continuation(&mg->k, invalidate_completed); in invalidate_remove()
1522 continue_after_commit(&cache->committer, &mg->k); in invalidate_remove()
1523 remap_to_origin_clear_discard(cache, mg->overwrite_bio, mg->invalidate_oblock); in invalidate_remove()
1524 mg->overwrite_bio = NULL; in invalidate_remove()
1528 static int invalidate_lock(struct dm_cache_migration *mg) in invalidate_lock() argument
1532 struct cache *cache = mg->cache; in invalidate_lock()
1537 build_key(mg->invalidate_oblock, oblock_succ(mg->invalidate_oblock), &key); in invalidate_lock()
1539 READ_WRITE_LOCK_LEVEL, prealloc, &mg->cell); in invalidate_lock()
1542 invalidate_complete(mg, false); in invalidate_lock()
1546 if (mg->cell != prealloc) in invalidate_lock()
1550 quiesce(mg, invalidate_remove); in invalidate_lock()
1557 init_continuation(&mg->k, invalidate_remove); in invalidate_lock()
1558 queue_work(cache->wq, &mg->k.ws); in invalidate_lock()
1567 struct dm_cache_migration *mg; in invalidate_start() local
1572 mg = alloc_migration(cache); in invalidate_start()
1574 mg->overwrite_bio = bio; in invalidate_start()
1575 mg->invalidate_cblock = cblock; in invalidate_start()
1576 mg->invalidate_oblock = oblock; in invalidate_start()
1578 return invalidate_lock(mg); in invalidate_start()