struct dentry

include/linux/dcache.h

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struct dentry {
        atomic_t d_count;
        unsigned int d_flags;           /* protected by d_lock */
        spinlock_t d_lock;              /* per dentry lock */
        struct inode *d_inode;          /* Where the name belongs to - NULL is
                                         * negative */
        /*
         * The next three fields are touched by __d_lookup.  Place them here
         * so they all fit in a 16-byte range, with 16-byte alignment.
         */
        struct dentry *d_parent;        /* parent directory */
        struct hlist_head *d_bucket;    /* lookup hash bucket */
        struct qstr d_name;             ファイル名

        struct list_head d_lru;         /* LRU list */
        struct list_head d_child;       /* child of parent list */
        struct list_head d_subdirs;     /* our children */
        struct list_head d_alias;       /* inode alias list */
        unsigned long d_time;           /* used by d_revalidate */
        struct dentry_operations *d_op;
        struct super_block *d_sb;       /* The root of the dentry tree */
        int d_mounted;
        void *d_fsdata;                 /* fs-specific data */
        struct rcu_head d_rcu;
        struct dcookie_struct *d_cookie; /* cookie, if any */
        struct hlist_node d_hash;       /* lookup hash list */
        unsigned char d_iname[DNAME_INLINE_LEN_MIN];    /* small names */
};