include/linux/fs.h

2062 struct file_operations {  struct
2063 	struct module *owner;
2064 	fop_flags_t fop_flags;
2065 	loff_t (*llseek) (struct file *, loff_t, int);
2066 	ssize_t (*read) (struct file *, char __user *, size_t, loff_t *);
2067 	ssize_t (*write) (struct file *, const char __user *, size_t, loff_t *);
2068 	ssize_t (*read_iter) (struct kiocb *, struct iov_iter *);
2069 	ssize_t (*write_iter) (struct kiocb *, struct iov_iter *);
2070 	int (*iopoll)(struct kiocb *kiocb, struct io_comp_batch *,
2072 	int (*iterate_shared) (struct file *, struct dir_context *);
2073 	__poll_t (*poll) (struct file *, struct poll_table_struct *);
2074 	long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long);
2075 	long (*compat_ioctl) (struct file *, unsigned int, unsigned long);
2076 	int (*mmap) (struct file *, struct vm_area_struct *);
2077 	int (*open) (struct inode *, struct file *);
2078 	int (*flush) (struct file *, fl_owner_t id);
2079 	int (*release) (struct inode *, struct file *);
2080 	int (*fsync) (struct file *, loff_t, loff_t, int datasync);
2081 	int (*fasync) (int, struct file *, int);
2082 	int (*lock) (struct file *, int, struct file_lock *);
2083 …ng (*get_unmapped_area)(struct file *, unsigned long, unsigned long, unsigned long, unsigned long);
2084 	int (*check_flags)(int);
2085 	int (*flock) (struct file *, int, struct file_lock *);
2086 	ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
2087 	ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
2088 	void (*splice_eof)(struct file *file);
2089 	int (*setlease)(struct file *, int, struct file_lease **, void **);
2090 	long (*fallocate)(struct file *file, int mode, loff_t offset,
2092 	void (*show_fdinfo)(struct seq_file *m, struct file *f);
2094 	unsigned (*mmap_capabilities)(struct file *);
2096 	ssize_t (*copy_file_range)(struct file *, loff_t, struct file *,
2098 	loff_t (*remap_file_range)(struct file *file_in, loff_t pos_in,
2101 	int (*fadvise)(struct file *, loff_t, loff_t, int);
2102 	int (*uring_cmd)(struct io_uring_cmd *ioucmd, unsigned int issue_flags);
2103 	int (*uring_cmd_iopoll)(struct io_uring_cmd *, struct io_comp_batch *,