2 * freefs.c --- free an ext2 filesystem
4 * Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o.
7 * This file may be redistributed under the terms of the GNU Public
20 static void ext2fs_free_inode_cache(struct ext2_inode_cache *icache);
22 void ext2fs_free(ext2_filsys fs)
24 if (!fs || (fs->magic != EXT2_ET_MAGIC_EXT2FS_FILSYS))
26 if (fs->image_io != fs->io) {
28 io_channel_close(fs->image_io);
31 io_channel_close(fs->io);
34 ext2fs_free_mem(&fs->device_name);
36 ext2fs_free_mem(&fs->super);
38 ext2fs_free_mem(&fs->orig_super);
40 ext2fs_free_mem(&fs->group_desc);
42 ext2fs_free_block_bitmap(fs->block_map);
44 ext2fs_free_inode_bitmap(fs->inode_map);
47 ext2fs_badblocks_list_free(fs->badblocks);
51 ext2fs_free_dblist(fs->dblist);
54 ext2fs_free_inode_cache(fs->icache);
62 * Free the inode cache structure
64 static void ext2fs_free_inode_cache(struct ext2_inode_cache *icache)
66 if (--icache->refcount)
69 ext2fs_free_mem(&icache->buffer);
71 ext2fs_free_mem(&icache->cache);
72 icache->buffer_blk = 0;
73 ext2fs_free_mem(&icache);
77 * This procedure frees a badblocks list.
79 void ext2fs_u32_list_free(ext2_u32_list bb)
81 if (bb->magic != EXT2_ET_MAGIC_BADBLOCKS_LIST)
85 ext2fs_free_mem(&bb->list);
90 void ext2fs_badblocks_list_free(ext2_badblocks_list bb)
92 ext2fs_u32_list_free((ext2_u32_list) bb);
97 * Free a directory block list
99 void ext2fs_free_dblist(ext2_dblist dblist)
101 if (!dblist || (dblist->magic != EXT2_ET_MAGIC_DBLIST))
105 ext2fs_free_mem(&dblist->list);
107 if (dblist->fs && dblist->fs->dblist == dblist)
108 dblist->fs->dblist = 0;
110 ext2fs_free_mem(&dblist);