fs/squashfs/squashfs_fs_sb.h

Source file repositories/reference/linux-study-clean/fs/squashfs/squashfs_fs_sb.h

File Facts

System
Linux kernel
Corpus path
fs/squashfs/squashfs_fs_sb.h
Extension
.h
Size
1670 bytes
Lines
74
Domain
Core OS
Bucket
VFS And Filesystem Core
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

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

Annotation

Implementation Notes