74 lines
1.6 KiB
C
74 lines
1.6 KiB
C
|
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
||
|
|
#ifndef SQUASHFS_FS_SB
|
||
|
|
#define SQUASHFS_FS_SB
|
||
|
|
/*
|
||
|
|
* Squashfs
|
||
|
|
*
|
||
|
|
* Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008
|
||
|
|
* Phillip Lougher <phillip@squashfs.org.uk>
|
||
|
|
*
|
||
|
|
* squashfs_fs_sb.h
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "squashfs_fs.h"
|
||
|
|
|
||
|
|
struct squashfs_cache {
|
||
|
|
char *name;
|
||
|
|
int entries;
|
||
|
|
int curr_blk;
|
||
|
|
int next_blk;
|
||
|
|
int num_waiters;
|
||
|
|
int unused;
|
||
|
|
int block_size;
|
||
|
|
int pages;
|
||
|
|
spinlock_t lock;
|
||
|
|
wait_queue_head_t wait_queue;
|
||
|
|
struct squashfs_cache_entry *entry;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct squashfs_cache_entry {
|
||
|
|
u64 block;
|
||
|
|
int length;
|
||
|
|
int refcount;
|
||
|
|
u64 next_index;
|
||
|
|
int pending;
|
||
|
|
int error;
|
||
|
|
int num_waiters;
|
||
|
|
wait_queue_head_t wait_queue;
|
||
|
|
struct squashfs_cache *cache;
|
||
|
|
void **data;
|
||
|
|
struct squashfs_page_actor *actor;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct squashfs_sb_info {
|
||
|
|
const struct squashfs_decompressor *decompressor;
|
||
|
|
int devblksize;
|
||
|
|
int devblksize_log2;
|
||
|
|
struct squashfs_cache *block_cache;
|
||
|
|
struct squashfs_cache *fragment_cache;
|
||
|
|
struct squashfs_cache *read_page;
|
||
|
|
struct address_space *cache_mapping;
|
||
|
|
int next_meta_index;
|
||
|
|
__le64 *id_table;
|
||
|
|
__le64 *fragment_index;
|
||
|
|
__le64 *xattr_id_table;
|
||
|
|
struct mutex meta_index_mutex;
|
||
|
|
struct meta_index *meta_index;
|
||
|
|
void *stream;
|
||
|
|
__le64 *inode_lookup_table;
|
||
|
|
u64 inode_table;
|
||
|
|
u64 directory_table;
|
||
|
|
u64 xattr_table;
|
||
|
|
unsigned int block_size;
|
||
|
|
unsigned short block_log;
|
||
|
|
long long bytes_used;
|
||
|
|
unsigned int inodes;
|
||
|
|
unsigned int fragments;
|
||
|
|
unsigned int xattr_ids;
|
||
|
|
unsigned int ids;
|
||
|
|
bool panic_on_errors;
|
||
|
|
const struct squashfs_decompressor_thread_ops *thread_ops;
|
||
|
|
int max_thread_num;
|
||
|
|
};
|
||
|
|
#endif
|