Orange Pi5 kernel

^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) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * Squashfs - a compressed read only filesystem for Linux
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  * Phillip Lougher <phillip@squashfs.org.uk>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  * squashfs.h
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #define TRACE(s, args...)	pr_debug("SQUASHFS: "s, ## args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #define ERROR(s, args...)	pr_err("SQUASHFS error: "s, ## args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #define WARNING(s, args...)	pr_warn("SQUASHFS: "s, ## args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) /* block.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) extern int squashfs_read_data(struct super_block *, u64, int, u64 *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 				struct squashfs_page_actor *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) /* cache.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) extern struct squashfs_cache *squashfs_cache_init(char *, int, int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) extern void squashfs_cache_delete(struct squashfs_cache *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) extern struct squashfs_cache_entry *squashfs_cache_get(struct super_block *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 				struct squashfs_cache *, u64, int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) extern void squashfs_cache_put(struct squashfs_cache_entry *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) extern int squashfs_copy_data(void *, struct squashfs_cache_entry *, int, int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) extern int squashfs_read_metadata(struct super_block *, void *, u64 *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 				int *, int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) extern struct squashfs_cache_entry *squashfs_get_fragment(struct super_block *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 				u64, int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) extern struct squashfs_cache_entry *squashfs_get_datablock(struct super_block *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 				u64, int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) extern void *squashfs_read_table(struct super_block *, u64, int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) /* decompressor.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) extern const struct squashfs_decompressor *squashfs_lookup_decompressor(int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) extern void *squashfs_decompressor_setup(struct super_block *, unsigned short);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) /* decompressor_xxx.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) extern void *squashfs_decompressor_create(struct squashfs_sb_info *, void *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) extern void squashfs_decompressor_destroy(struct squashfs_sb_info *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) extern int squashfs_decompress(struct squashfs_sb_info *, struct bio *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 				int, int, struct squashfs_page_actor *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) extern int squashfs_max_decompressors(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) /* export.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) extern __le64 *squashfs_read_inode_lookup_table(struct super_block *, u64, u64,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 				unsigned int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) /* fragment.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) extern int squashfs_frag_lookup(struct super_block *, unsigned int, u64 *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) extern __le64 *squashfs_read_fragment_index_table(struct super_block *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 				u64, u64, unsigned int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) /* file.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) void squashfs_fill_page(struct page *, struct squashfs_cache_entry *, int, int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) void squashfs_copy_cache(struct page *, struct squashfs_cache_entry *, int,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 				int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) /* file_xxx.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) extern int squashfs_readpage_block(struct page *, u64, int, int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) /* id.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) extern int squashfs_get_id(struct super_block *, unsigned int, unsigned int *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) extern __le64 *squashfs_read_id_index_table(struct super_block *, u64, u64,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 				unsigned short);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) /* inode.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) extern struct inode *squashfs_iget(struct super_block *, long long,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 				unsigned int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) extern int squashfs_read_inode(struct inode *, long long);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) /* xattr.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) extern ssize_t squashfs_listxattr(struct dentry *, char *, size_t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78)  * Inodes, files,  decompressor and xattr operations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) /* dir.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) extern const struct file_operations squashfs_dir_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) /* export.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) extern const struct export_operations squashfs_export_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) /* file.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) extern const struct address_space_operations squashfs_aops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) /* inode.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) extern const struct inode_operations squashfs_inode_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) /* namei.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) extern const struct inode_operations squashfs_dir_inode_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) /* symlink.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) extern const struct address_space_operations squashfs_symlink_aops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) extern const struct inode_operations squashfs_symlink_inode_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) /* xattr.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) extern const struct xattr_handler *squashfs_xattr_handlers[];