^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0-or-later */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) #ifndef SQUASHFS_FS_SB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) #define SQUASHFS_FS_SB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Squashfs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Phillip Lougher <phillip@squashfs.org.uk>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * squashfs_fs_sb.h
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include "squashfs_fs.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) struct squashfs_cache {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) char *name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) int entries;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) int curr_blk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) int next_blk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) int num_waiters;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) int unused;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) int block_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) int pages;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) spinlock_t lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) wait_queue_head_t wait_queue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) struct squashfs_cache_entry *entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) struct squashfs_cache_entry {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) u64 block;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) int length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) int refcount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) u64 next_index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) int pending;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) int num_waiters;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) wait_queue_head_t wait_queue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) struct squashfs_cache *cache;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) void **data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) struct squashfs_page_actor *actor;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) struct squashfs_sb_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) const struct squashfs_decompressor *decompressor;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) int devblksize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) int devblksize_log2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) struct squashfs_cache *block_cache;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) struct squashfs_cache *fragment_cache;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) struct squashfs_cache *read_page;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) int next_meta_index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) __le64 *id_table;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) __le64 *fragment_index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) __le64 *xattr_id_table;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) struct mutex meta_index_mutex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) struct meta_index *meta_index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) struct squashfs_stream *stream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) __le64 *inode_lookup_table;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) u64 inode_table;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) u64 directory_table;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) u64 xattr_table;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) unsigned int block_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) unsigned short block_log;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) long long bytes_used;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) unsigned int inodes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) unsigned int fragments;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) int xattr_ids;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) unsigned int ids;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) #endif