include/linux/fs.h

1416 struct super_block {  struct
1417 	struct list_head	s_list;		/* Keep this first */
1418 	dev_t			s_dev;		/* search index; _not_ kdev_t */
1419 	unsigned char		s_blocksize_bits;
1420 	unsigned long		s_blocksize;
1421 	loff_t			s_maxbytes;	/* Max file size */
1422 	struct file_system_type	*s_type;
1423 	const struct super_operations	*s_op;
1424 	const struct dquot_operations	*dq_op;
1425 	const struct quotactl_ops	*s_qcop;
1426 	const struct export_operations *s_export_op;
1427 	unsigned long		s_flags;
1428 	unsigned long		s_iflags;	/* internal SB_I_* flags */
1429 	unsigned long		s_magic;
1430 	struct dentry		*s_root;
1431 	struct rw_semaphore	s_umount;
1432 	int			s_count;
1433 	atomic_t		s_active;
1435 	void                    *s_security;
1437 	const struct xattr_handler **s_xattr;
1439 	const struct fscrypt_operations	*s_cop;
1440 	struct key		*s_master_keys; /* master crypto keys in use */
1443 	const struct fsverity_operations *s_vop;
1446 	struct unicode_map *s_encoding;
1447 	__u16 s_encoding_flags;
1449 	struct hlist_bl_head	s_roots;	/* alternate root dentries for NFS */
1450 	struct list_head	s_mounts;	/* list of mounts; _not_ for fs use */
1451 	struct block_device	*s_bdev;
1452 	struct backing_dev_info *s_bdi;
1453 	struct mtd_info		*s_mtd;
1454 	struct hlist_node	s_instances;
1455 	unsigned int		s_quota_types;	/* Bitmask of supported quota types */
1456 	struct quota_info	s_dquot;	/* Diskquota specific options */
1458 	struct sb_writers	s_writers;
1465 	void			*s_fs_info;	/* Filesystem private info */
1468 	u32			s_time_gran;
1470 	time64_t		   s_time_min;
1471 	time64_t		   s_time_max;
1473 	__u32			s_fsnotify_mask;
1474 	struct fsnotify_mark_connector __rcu	*s_fsnotify_marks;
1477 	char			s_id[32];	/* Informational name */
1478 	uuid_t			s_uuid;		/* UUID */
1480 	unsigned int		s_max_links;
1481 	fmode_t			s_mode;
1487 	struct mutex s_vfs_rename_mutex;	/* Kludge */
1493 	const char *s_subtype;
1495 	const struct dentry_operations *s_d_op; /* default d_op for dentries */
1500 	int cleancache_poolid;
1502 	struct shrinker s_shrink;	/* per-sb shrinker handle */
1505 	atomic_long_t s_remove_count;
1508 	atomic_long_t s_fsnotify_inode_refs;
1511 	int s_readonly_remount;
1514 	errseq_t s_wb_err;
1517 	struct workqueue_struct *s_dio_done_wq;
1518 	struct hlist_head s_pins;
1525 	struct user_namespace *s_user_ns;
1532 	struct list_lru		s_dentry_lru;
1533 	struct list_lru		s_inode_lru;
1534 	struct rcu_head		rcu;
1535 	struct work_struct	destroy_work;
1537 	struct mutex		s_sync_lock;	/* sync serialisation lock */
1542 	int s_stack_depth;
1545 	spinlock_t		s_inode_list_lock ____cacheline_aligned_in_smp;
1546 	struct list_head	s_inodes;	/* all inodes */
1548 	spinlock_t		s_inode_wblist_lock;
1549 	struct list_head	s_inodes_wb;	/* writeback inodes */