Line data    Source code

       1             : /*
       2             :  * Copyright (C) 2008 Red Hat.  All rights reserved.
       3             :  *
       4             :  * This program is free software; you can redistribute it and/or
       5             :  * modify it under the terms of the GNU General Public
       6             :  * License v2 as published by the Free Software Foundation.
       7             :  *
       8             :  * This program is distributed in the hope that it will be useful,
       9             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      10             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      11             :  * General Public License for more details.
      12             :  *
      13             :  * You should have received a copy of the GNU General Public
      14             :  * License along with this program; if not, write to the
      15             :  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
      16             :  * Boston, MA 021110-1307, USA.
      17             :  */
      18             : 
      19             : #include "ctree.h"
      20             : #include "disk-io.h"
      21             : 
      22        9663 : int btrfs_insert_orphan_item(struct btrfs_trans_handle *trans,
      23             :                              struct btrfs_root *root, u64 offset)
      24             : {
      25             :         struct btrfs_path *path;
      26             :         struct btrfs_key key;
      27             :         int ret = 0;
      28             : 
      29        9663 :         key.objectid = BTRFS_ORPHAN_OBJECTID;
      30             :         btrfs_set_key_type(&key, BTRFS_ORPHAN_ITEM_KEY);
      31        9663 :         key.offset = offset;
      32             : 
      33        9663 :         path = btrfs_alloc_path();
      34        9663 :         if (!path)
      35             :                 return -ENOMEM;
      36             : 
      37             :         ret = btrfs_insert_empty_item(trans, root, path, &key, 0);
      38             : 
      39        9663 :         btrfs_free_path(path);
      40        9663 :         return ret;
      41             : }
      42             : 
      43        9642 : int btrfs_del_orphan_item(struct btrfs_trans_handle *trans,
      44             :                           struct btrfs_root *root, u64 offset)
      45             : {
      46             :         struct btrfs_path *path;
      47             :         struct btrfs_key key;
      48             :         int ret = 0;
      49             : 
      50        9642 :         key.objectid = BTRFS_ORPHAN_OBJECTID;
      51             :         btrfs_set_key_type(&key, BTRFS_ORPHAN_ITEM_KEY);
      52        9642 :         key.offset = offset;
      53             : 
      54        9642 :         path = btrfs_alloc_path();
      55        9642 :         if (!path)
      56             :                 return -ENOMEM;
      57             : 
      58        9642 :         ret = btrfs_search_slot(trans, root, &key, path, -1, 1);
      59        9642 :         if (ret < 0)
      60             :                 goto out;
      61        9642 :         if (ret) { /* JDM: Really? */
      62             :                 ret = -ENOENT;
      63             :                 goto out;
      64             :         }
      65             : 
      66             :         ret = btrfs_del_item(trans, root, path);
      67             : 
      68             : out:
      69        9642 :         btrfs_free_path(path);
      70        9642 :         return ret;
      71             : }