release/src/router/busybox/e2fsprogs/ext2fs/alloc_stats.c

   1 /* vi: set sw=4 ts=4: */
   2 /*
   3  * alloc_stats.c --- Update allocation statistics for ext2fs
   4  *
   5  * Copyright (C) 2001 Theodore Ts'o.
   6  *
   7  * %Begin-Header%
   8  * This file may be redistributed under the terms of the GNU Public
   9  * License.
  10  * %End-Header%
  11  *
  12  */
  13
  14 #include <stdio.h>
  15
  16 #include "ext2_fs.h"
  17 #include "ext2fs.h"
  18
  19 void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
  20                                int inuse, int isdir)
  21 {
  22         int     group = ext2fs_group_of_ino(fs, ino);
  23
  24         if (inuse > 0)
  25                 ext2fs_mark_inode_bitmap(fs->inode_map, ino);
  26         else
  27                 ext2fs_unmark_inode_bitmap(fs->inode_map, ino);
  28         fs->group_desc[group].bg_free_inodes_count -= inuse;
  29         if (isdir)
  30                 fs->group_desc[group].bg_used_dirs_count += inuse;
  31         fs->super->s_free_inodes_count -= inuse;
  32         ext2fs_mark_super_dirty(fs);
  33         ext2fs_mark_ib_dirty(fs);
  34 }
  35
  36 void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse)
  37 {
  38         ext2fs_inode_alloc_stats2(fs, ino, inuse, 0);
  39 }
  40
  41 void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse)
  42 {
  43         int     group = ext2fs_group_of_blk(fs, blk);
  44
  45         if (inuse > 0)
  46                 ext2fs_mark_block_bitmap(fs->block_map, blk);
  47         else
  48                 ext2fs_unmark_block_bitmap(fs->block_map, blk);
  49         fs->group_desc[group].bg_free_blocks_count -= inuse;
  50         fs->super->s_free_blocks_count -= inuse;
  51         ext2fs_mark_super_dirty(fs);
  52         ext2fs_mark_bb_dirty(fs);
  53 }