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Diffstat (limited to 'fs/squashfs/squashfs.h')
| -rw-r--r-- | fs/squashfs/squashfs.h | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/fs/squashfs/squashfs.h b/fs/squashfs/squashfs.h new file mode 100644 index 0000000000..a6164fdf94 --- /dev/null +++ b/fs/squashfs/squashfs.h @@ -0,0 +1,114 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Squashfs - a compressed read only filesystem for Linux + * + * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008 + * Phillip Lougher <phillip@squashfs.org.uk> + * + * squashfs.h + */ + +#define TRACE(s, args...) pr_debug("SQUASHFS: "s, ## args) + +#define ERROR(s, args...) pr_err("SQUASHFS error: "s, ## args) + +#define WARNING(s, args...) pr_warn("SQUASHFS: "s, ## args) + +/* block.c */ +extern int squashfs_read_data(struct super_block *, u64, int, u64 *, + struct squashfs_page_actor *); + +/* cache.c */ +extern struct squashfs_cache *squashfs_cache_init(char *, int, int); +extern void squashfs_cache_delete(struct squashfs_cache *); +extern struct squashfs_cache_entry *squashfs_cache_get(struct super_block *, + struct squashfs_cache *, u64, int); +extern void squashfs_cache_put(struct squashfs_cache_entry *); +extern int squashfs_copy_data(void *, struct squashfs_cache_entry *, int, int); +extern int squashfs_read_metadata(struct super_block *, void *, u64 *, + int *, int); +extern struct squashfs_cache_entry *squashfs_get_fragment(struct super_block *, + u64, int); +extern struct squashfs_cache_entry *squashfs_get_datablock(struct super_block *, + u64, int); +extern void *squashfs_read_table(struct super_block *, u64, int); + +/* decompressor.c */ +extern const struct squashfs_decompressor *squashfs_lookup_decompressor(int); +extern void *squashfs_decompressor_setup(struct super_block *, unsigned short); + +/* decompressor_xxx.c */ + +struct squashfs_decompressor_thread_ops { + void * (*create)(struct squashfs_sb_info *msblk, void *comp_opts); + void (*destroy)(struct squashfs_sb_info *msblk); + int (*decompress)(struct squashfs_sb_info *msblk, struct bio *bio, + int offset, int length, struct squashfs_page_actor *output); + int (*max_decompressors)(void); +}; + +#ifdef CONFIG_SQUASHFS_DECOMP_SINGLE +extern const struct squashfs_decompressor_thread_ops squashfs_decompressor_single; +#endif +#ifdef CONFIG_SQUASHFS_DECOMP_MULTI +extern const struct squashfs_decompressor_thread_ops squashfs_decompressor_multi; +#endif +#ifdef CONFIG_SQUASHFS_DECOMP_MULTI_PERCPU +extern const struct squashfs_decompressor_thread_ops squashfs_decompressor_percpu; +#endif + +/* export.c */ +extern __le64 *squashfs_read_inode_lookup_table(struct super_block *, u64, u64, + unsigned int); + +/* fragment.c */ +extern int squashfs_frag_lookup(struct super_block *, unsigned int, u64 *); +extern __le64 *squashfs_read_fragment_index_table(struct super_block *, + u64, u64, unsigned int); + +/* file.c */ +void squashfs_fill_page(struct page *, struct squashfs_cache_entry *, int, int); +void squashfs_copy_cache(struct page *, struct squashfs_cache_entry *, int, + int); + +/* file_xxx.c */ +extern int squashfs_readpage_block(struct page *, u64, int, int); + +/* id.c */ +extern int squashfs_get_id(struct super_block *, unsigned int, unsigned int *); +extern __le64 *squashfs_read_id_index_table(struct super_block *, u64, u64, + unsigned short); + +/* inode.c */ +extern struct inode *squashfs_iget(struct super_block *, long long, + unsigned int); +extern int squashfs_read_inode(struct inode *, long long); + +/* xattr.c */ +extern ssize_t squashfs_listxattr(struct dentry *, char *, size_t); + +/* + * Inodes, files, decompressor and xattr operations + */ + +/* dir.c */ +extern const struct file_operations squashfs_dir_ops; + +/* export.c */ +extern const struct export_operations squashfs_export_ops; + +/* file.c */ +extern const struct address_space_operations squashfs_aops; + +/* inode.c */ +extern const struct inode_operations squashfs_inode_ops; + +/* namei.c */ +extern const struct inode_operations squashfs_dir_inode_ops; + +/* symlink.c */ +extern const struct address_space_operations squashfs_symlink_aops; +extern const struct inode_operations squashfs_symlink_inode_ops; + +/* xattr.c */ +extern const struct xattr_handler *squashfs_xattr_handlers[]; |