Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/* SPDX-License-Identifier: GPL-2.0-or-later */
2#ifndef DECOMPRESSOR_H
3#define DECOMPRESSOR_H
4/*
5 * Squashfs - a compressed read only filesystem for Linux
6 *
7 * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
8 * Phillip Lougher <phillip@squashfs.org.uk>
9 *
10 * decompressor.h
11 */
12
13struct squashfs_decompressor {
14 void *(*init)(struct squashfs_sb_info *, void *);
15 void *(*comp_opts)(struct squashfs_sb_info *, void *, int);
16 void (*free)(void *);
17 int (*decompress)(struct squashfs_sb_info *, void *,
18 struct buffer_head **, int, int, int,
19 struct squashfs_page_actor *);
20 int id;
21 char *name;
22 int supported;
23};
24
25static inline void *squashfs_comp_opts(struct squashfs_sb_info *msblk,
26 void *buff, int length)
27{
28 return msblk->decompressor->comp_opts ?
29 msblk->decompressor->comp_opts(msblk, buff, length) : NULL;
30}
31
32#ifdef CONFIG_SQUASHFS_XZ
33extern const struct squashfs_decompressor squashfs_xz_comp_ops;
34#endif
35
36#ifdef CONFIG_SQUASHFS_LZ4
37extern const struct squashfs_decompressor squashfs_lz4_comp_ops;
38#endif
39
40#ifdef CONFIG_SQUASHFS_LZO
41extern const struct squashfs_decompressor squashfs_lzo_comp_ops;
42#endif
43
44#ifdef CONFIG_SQUASHFS_ZLIB
45extern const struct squashfs_decompressor squashfs_zlib_comp_ops;
46#endif
47
48#ifdef CONFIG_SQUASHFS_ZSTD
49extern const struct squashfs_decompressor squashfs_zstd_comp_ops;
50#endif
51
52#endif