diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index be8eae80ff65..f85ccf634ca1 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -75,6 +75,23 @@ void btrfs_put_transaction(struct btrfs_transaction *transaction) list_del_init(&em->list); free_extent_map(em); } + /* + * If any block groups are found in ->deleted_bgs then it's + * because the transaction was aborted and a commit did not + * happen (things failed before writing the new superblock + * and calling btrfs_finish_extent_commit()), so we can not + * discard the physical locations of the block groups. + */ + while (!list_empty(&transaction->deleted_bgs)) { + struct btrfs_block_group_cache *cache; + + cache = list_first_entry(&transaction->deleted_bgs, + struct btrfs_block_group_cache, + bg_list); + list_del_init(&cache->bg_list); + btrfs_put_block_group_trimming(cache); + btrfs_put_block_group(cache); + } kmem_cache_free(btrfs_transaction_cachep, transaction); } }