/* vi: set sw=4 ts=4: *//* * freefs.c --- free an ext2 filesystem * * Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o. * * %Begin-Header% * This file may be redistributed under the terms of the GNU Public * License. * %End-Header% */#include <stdio.h>#if HAVE_UNISTD_H#include <unistd.h>#endif#include "ext2_fs.h"#include "ext2fsP.h"static void ext2fs_free_inode_cache(struct ext2_inode_cache *icache);void ext2fs_free(ext2_filsys fs){	if (!fs || (fs->magic != EXT2_ET_MAGIC_EXT2FS_FILSYS))		return;	if (fs->image_io != fs->io) {		if (fs->image_io)			io_channel_close(fs->image_io);	}	if (fs->io) {		io_channel_close(fs->io);	}	ext2fs_free_mem(&fs->device_name);	ext2fs_free_mem(&fs->super);	ext2fs_free_mem(&fs->orig_super);	ext2fs_free_mem(&fs->group_desc);	ext2fs_free_block_bitmap(fs->block_map);	ext2fs_free_inode_bitmap(fs->inode_map);	ext2fs_badblocks_list_free(fs->badblocks);	fs->badblocks = 0;	ext2fs_free_dblist(fs->dblist);	if (fs->icache)		ext2fs_free_inode_cache(fs->icache);	fs->magic = 0;	ext2fs_free_mem(&fs);}void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap){	if (!bitmap || (bitmap->magic != EXT2_ET_MAGIC_GENERIC_BITMAP))		return;	bitmap->magic = 0;	ext2fs_free_mem(&bitmap->description);	ext2fs_free_mem(&bitmap->bitmap);	ext2fs_free_mem(&bitmap);}void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap){	if (!bitmap || (bitmap->magic != EXT2_ET_MAGIC_INODE_BITMAP))		return;	bitmap->magic = EXT2_ET_MAGIC_GENERIC_BITMAP;	ext2fs_free_generic_bitmap(bitmap);}void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap){	if (!bitmap || (bitmap->magic != EXT2_ET_MAGIC_BLOCK_BITMAP))		return;	bitmap->magic = EXT2_ET_MAGIC_GENERIC_BITMAP;	ext2fs_free_generic_bitmap(bitmap);}/* * Free the inode cache structure */static void ext2fs_free_inode_cache(struct ext2_inode_cache *icache){	if (--icache->refcount)		return;	ext2fs_free_mem(&icache->buffer);	ext2fs_free_mem(&icache->cache);	icache->buffer_blk = 0;	ext2fs_free_mem(&icache);}/* * This procedure frees a badblocks list. */void ext2fs_u32_list_free(ext2_u32_list bb){	if (!bb || bb->magic != EXT2_ET_MAGIC_BADBLOCKS_LIST)		return;	ext2fs_free_mem(&bb->list);	ext2fs_free_mem(&bb);}void ext2fs_badblocks_list_free(ext2_badblocks_list bb){	ext2fs_u32_list_free((ext2_u32_list) bb);}/* * Free a directory block list */void ext2fs_free_dblist(ext2_dblist dblist){	if (!dblist || (dblist->magic != EXT2_ET_MAGIC_DBLIST))		return;	ext2fs_free_mem(&dblist->list);	if (dblist->fs && dblist->fs->dblist == dblist)		dblist->fs->dblist = 0;	dblist->magic = 0;	ext2fs_free_mem(&dblist);}