diff options
Diffstat (limited to 'libbcachefs/dirent.c')
| -rw-r--r-- | libbcachefs/dirent.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/libbcachefs/dirent.c b/libbcachefs/dirent.c index f4c283d1..d7f9f793 100644 --- a/libbcachefs/dirent.c +++ b/libbcachefs/dirent.c @@ -729,3 +729,54 @@ int bch2_readdir(struct bch_fs *c, subvol_inum inum, struct dir_context *ctx) return ret < 0 ? ret : 0; } + +/* fsck */ + +static int lookup_first_inode(struct btree_trans *trans, u64 inode_nr, + struct bch_inode_unpacked *inode) +{ + struct btree_iter iter; + struct bkey_s_c k; + int ret; + + for_each_btree_key_norestart(trans, iter, BTREE_ID_inodes, POS(0, inode_nr), + BTREE_ITER_all_snapshots, k, ret) { + if (k.k->p.offset != inode_nr) + break; + if (!bkey_is_inode(k.k)) + continue; + ret = bch2_inode_unpack(k, inode); + goto found; + } + ret = -BCH_ERR_ENOENT_inode; +found: + bch_err_msg(trans->c, ret, "fetching inode %llu", inode_nr); + bch2_trans_iter_exit(trans, &iter); + return ret; +} + +int bch2_fsck_remove_dirent(struct btree_trans *trans, struct bpos pos) +{ + struct bch_fs *c = trans->c; + struct btree_iter iter; + struct bch_inode_unpacked dir_inode; + struct bch_hash_info dir_hash_info; + int ret; + + ret = lookup_first_inode(trans, pos.inode, &dir_inode); + if (ret) + goto err; + + dir_hash_info = bch2_hash_info_init(c, &dir_inode); + + bch2_trans_iter_init(trans, &iter, BTREE_ID_dirents, pos, BTREE_ITER_intent); + + ret = bch2_btree_iter_traverse(&iter) ?: + bch2_hash_delete_at(trans, bch2_dirent_hash_desc, + &dir_hash_info, &iter, + BTREE_UPDATE_internal_snapshot_node); + bch2_trans_iter_exit(trans, &iter); +err: + bch_err_fn(c, ret); + return ret; +} |