fs/f2fs/f2fs.h

760 struct f2fs_inode_info {  struct
761 	struct inode vfs_inode;		/* serve a vfs inode */
762 	unsigned long i_flags;		/* keep an inode flags for ioctl */
763 	unsigned char i_advise;		/* use to give file attribute hints */
764 	unsigned char i_dir_level;	/* use for dentry level for large dir */
765 	unsigned int i_current_depth;	/* only for directory depth */
767 	unsigned int i_gc_failures[MAX_GC_FAILURE];
768 	unsigned int i_pino;		/* parent inode number */
769 	umode_t i_acl_mode;		/* keep file acl mode temporarily */
772 	unsigned long flags[BITS_TO_LONGS(FI_MAX)];	/* use to pass per-file flags */
773 	struct rw_semaphore i_sem;	/* protect fi info */
774 	atomic_t dirty_pages;		/* # of dirty pages */
775 	f2fs_hash_t chash;		/* hash value of given file name */
776 	unsigned int clevel;		/* maximum level of given file name */
777 	struct task_struct *task;	/* lookup and create consistency */
778 	struct task_struct *cp_task;	/* separate cp/wb IO stats*/
779 	nid_t i_xattr_nid;		/* node id that contains xattrs */
780 	loff_t	last_disk_size;		/* lastly written file size */
781 	spinlock_t i_size_lock;		/* protect last_disk_size */
784 	struct dquot *i_dquot[MAXQUOTAS];
787 	qsize_t i_reserved_quota;
789 	struct list_head dirty_list;	/* dirty list for dirs and files */
790 	struct list_head gdirty_list;	/* linked in global dirty list */
791 	struct list_head inmem_ilist;	/* list for inmem inodes */
792 	struct list_head inmem_pages;	/* inmemory pages managed by f2fs */
793 	struct task_struct *inmem_task;	/* store inmemory task */
794 	struct mutex inmem_lock;	/* lock for inmemory pages */
795 	pgoff_t ra_offset;		/* ongoing readahead offset */
796 	struct extent_tree *extent_tree;	/* cached extent_tree entry */
799 	struct rw_semaphore i_gc_rwsem[2];
800 	struct rw_semaphore i_mmap_sem;
801 	struct rw_semaphore i_xattr_sem; /* avoid racing between reading and changing EAs */
803 	int i_extra_isize;		/* size of extra space located in i_addr */
804 	kprojid_t i_projid;		/* id for project quota */
805 	int i_inline_xattr_size;	/* inline xattr size */
806 	struct timespec64 i_crtime;	/* inode creation time */
807 	struct timespec64 i_disk_time[4];/* inode disk times */
810 	atomic_t i_compr_blocks;		/* # of compressed blocks */
811 	unsigned char i_compress_algorithm;	/* algorithm type */
812 	unsigned char i_log_cluster_size;	/* log of cluster size */
813 	unsigned int i_cluster_size;		/* cluster size */