| 1 | // SPDX-License-Identifier: GPL-2.0 |
|---|
| 2 | /* |
|---|
| 3 | * Copyright (C) 2008 Red Hat. All rights reserved. |
|---|
| 4 | */ |
|---|
| 5 | |
|---|
| 6 | #include "ctree.h" |
|---|
| 7 | #include "disk-io.h" |
|---|
| 8 | #include "orphan.h" |
|---|
| 9 | |
|---|
| 10 | int btrfs_insert_orphan_item(struct btrfs_trans_handle *trans, |
|---|
| 11 | struct btrfs_root *root, u64 offset) |
|---|
| 12 | { |
|---|
| 13 | struct btrfs_path *path; |
|---|
| 14 | struct btrfs_key key; |
|---|
| 15 | int ret = 0; |
|---|
| 16 | |
|---|
| 17 | key.objectid = BTRFS_ORPHAN_OBJECTID; |
|---|
| 18 | key.type = BTRFS_ORPHAN_ITEM_KEY; |
|---|
| 19 | key.offset = offset; |
|---|
| 20 | |
|---|
| 21 | path = btrfs_alloc_path(); |
|---|
| 22 | if (!path) |
|---|
| 23 | return -ENOMEM; |
|---|
| 24 | |
|---|
| 25 | ret = btrfs_insert_empty_item(trans, root, path, key: &key, data_size: 0); |
|---|
| 26 | |
|---|
| 27 | btrfs_free_path(p: path); |
|---|
| 28 | return ret; |
|---|
| 29 | } |
|---|
| 30 | |
|---|
| 31 | int btrfs_del_orphan_item(struct btrfs_trans_handle *trans, |
|---|
| 32 | struct btrfs_root *root, u64 offset) |
|---|
| 33 | { |
|---|
| 34 | struct btrfs_path *path; |
|---|
| 35 | struct btrfs_key key; |
|---|
| 36 | int ret = 0; |
|---|
| 37 | |
|---|
| 38 | key.objectid = BTRFS_ORPHAN_OBJECTID; |
|---|
| 39 | key.type = BTRFS_ORPHAN_ITEM_KEY; |
|---|
| 40 | key.offset = offset; |
|---|
| 41 | |
|---|
| 42 | path = btrfs_alloc_path(); |
|---|
| 43 | if (!path) |
|---|
| 44 | return -ENOMEM; |
|---|
| 45 | |
|---|
| 46 | ret = btrfs_search_slot(trans, root, key: &key, p: path, ins_len: -1, cow: 1); |
|---|
| 47 | if (ret < 0) |
|---|
| 48 | goto out; |
|---|
| 49 | if (ret) { /* JDM: Really? */ |
|---|
| 50 | ret = -ENOENT; |
|---|
| 51 | goto out; |
|---|
| 52 | } |
|---|
| 53 | |
|---|
| 54 | ret = btrfs_del_item(trans, root, path); |
|---|
| 55 | |
|---|
| 56 | out: |
|---|
| 57 | btrfs_free_path(p: path); |
|---|
| 58 | return ret; |
|---|
| 59 | } |
|---|
| 60 | |
|---|
