struct file defined in include/linux/fs.h

struct file defined in include/linux/fs.h

struct file 

{
        /*
         * fu_list becomes invalid after file_free is called and queued via
         * fu_rcuhead for RCU freeing
         */
        union {
                struct list_head        fu_list;
                struct rcu_head         fu_rcuhead;
        } f_u;
        struct path             f_path;
#define f_dentry        f_path.dentry
#define f_vfsmnt        f_path.mnt
        const struct file_operations    *f_op;
        spinlock_t              f_lock;  /* f_ep_links, f_flags, no IRQ */
#ifdef CONFIG_SMP
        int                     f_sb_list_cpu;
#endif
        atomic_long_t           f_count;
        unsigned int            f_flags;
        fmode_t                 f_mode;
        loff_t                  f_pos;

        struct fown_struct      f_owner;
        const struct cred       *f_cred;
        struct file_ra_state    f_ra;


        u64                     f_version;
#ifdef CONFIG_SECURITY
        void                    *f_security;
#endif
        /* needed for tty driver, and maybe others */
        void                    *private_data;


#ifdef CONFIG_EPOLL
        /* Used by fs/eventpoll.c to link all the hooks to this file */
        struct list_head        f_ep_links;
#endif /* #ifdef CONFIG_EPOLL */
        struct address_space    *f_mapping;
#ifdef CONFIG_DEBUG_WRITECOUNT
        unsigned long f_mnt_write_state;
#endif
};