projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 68252eb5 | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| 4c0f0bb2 PL |
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 | |
| d7f2ff67 | 8 | * Phillip Lougher <phillip@squashfs.org.uk> |
| 4c0f0bb2 | 9 | * |
| 4c0f0bb2 PL |
10 | * decompressor.h |
| 11 | */ | |
| 12 | ||
| 93e72b3c PL |
13 | #include <linux/bio.h> |
| 14 | ||
| 4c0f0bb2 | 15 | struct squashfs_decompressor { |
| 9508c6b9 PL |
16 | void *(*init)(struct squashfs_sb_info *, void *); |
| 17 | void *(*comp_opts)(struct squashfs_sb_info *, void *, int); | |
| 4c0f0bb2 | 18 | void (*free)(void *); |
| 846b730e | 19 | int (*decompress)(struct squashfs_sb_info *, void *, |
| 93e72b3c | 20 | struct bio *, int, int, struct squashfs_page_actor *); |
| 4c0f0bb2 PL |
21 | int id; |
| 22 | char *name; | |
| f268eedd | 23 | int alloc_buffer; |
| 4c0f0bb2 PL |
24 | int supported; |
| 25 | }; | |
| 26 | ||
| 9508c6b9 PL |
27 | static inline void *squashfs_comp_opts(struct squashfs_sb_info *msblk, |
| 28 | void *buff, int length) | |
| 4c0f0bb2 | 29 | { |
| 9508c6b9 PL |
30 | return msblk->decompressor->comp_opts ? |
| 31 | msblk->decompressor->comp_opts(msblk, buff, length) : NULL; | |
| 4c0f0bb2 | 32 | } |
| 7a43ae52 PL |
33 | |
| 34 | #ifdef CONFIG_SQUASHFS_XZ | |
| 35 | extern const struct squashfs_decompressor squashfs_xz_comp_ops; | |
| 36 | #endif | |
| 37 | ||
| 62421645 PL |
38 | #ifdef CONFIG_SQUASHFS_LZ4 |
| 39 | extern const struct squashfs_decompressor squashfs_lz4_comp_ops; | |
| 40 | #endif | |
| 41 | ||
| 01a678c5 PL |
42 | #ifdef CONFIG_SQUASHFS_LZO |
| 43 | extern const struct squashfs_decompressor squashfs_lzo_comp_ops; | |
| 44 | #endif | |
| 45 | ||
| cc6d3497 PL |
46 | #ifdef CONFIG_SQUASHFS_ZLIB |
| 47 | extern const struct squashfs_decompressor squashfs_zlib_comp_ops; | |
| 48 | #endif | |
| 49 | ||
| 87bf54bb SP |
50 | #ifdef CONFIG_SQUASHFS_ZSTD |
| 51 | extern const struct squashfs_decompressor squashfs_zstd_comp_ops; | |
| 52 | #endif | |
| 53 | ||
| 4c0f0bb2 | 54 | #endif |