236 	struct file	*ia_file;
323 	struct file		*ki_filp;
371 	int (*readpage)(struct file *, struct page *);
383 	int (*readpages)(struct file *filp, struct address_space *mapping,
387 	int (*write_begin)(struct file *, struct address_space *mapping,
390 	int (*write_end)(struct file *, struct address_space *mapping,
415 	int (*swap_activate)(struct swap_info_struct *sis, struct file *file,
417 	void (*swap_deactivate)(struct file *file);
431 int pagecache_write_begin(struct file *, struct address_space *mapping,
435 int pagecache_write_end(struct file *, struct address_space *mapping,
936 struct file {  struct
989 static inline struct file *get_file(struct file *f)  in get_file()
1108 	struct file *fl_file;
1153 extern int fcntl_getlk(struct file *, unsigned int, struct flock *);
1154 extern int fcntl_setlk(unsigned int, struct file *, unsigned int,
1158 extern int fcntl_getlk64(struct file *, unsigned int, struct flock64 *);
1159 extern int fcntl_setlk64(unsigned int, struct file *, unsigned int,
1163 extern int fcntl_setlease(unsigned int fd, struct file *filp, long arg);
1164 extern int fcntl_getlease(struct file *filp);
1173 extern void locks_remove_posix(struct file *, fl_owner_t);
1174 extern void locks_remove_file(struct file *);
1176 extern void posix_test_lock(struct file *, struct file_lock *);
1177 extern int posix_lock_file(struct file *, struct file_lock *, struct file_lock *);
1179 extern int vfs_test_lock(struct file *, struct file_lock *);
1180 extern int vfs_lock_file(struct file *, unsigned int, struct file_lock *, struct file_lock *);
1181 extern int vfs_cancel_lock(struct file *filp, struct file_lock *fl);
1185 extern int generic_setlease(struct file *, long, struct file_lock **, void **priv);
1186 extern int vfs_setlease(struct file *, long, struct file_lock **, void **);
1195 			 struct file *filp, struct files_struct *files);
1197 static inline int fcntl_getlk(struct file *file, unsigned int cmd,  in fcntl_getlk()  argument
1203 static inline int fcntl_setlk(unsigned int fd, struct file *file,  in fcntl_setlk()  argument
1210 static inline int fcntl_getlk64(struct file *file, unsigned int cmd,  in fcntl_getlk64()  argument
1216 static inline int fcntl_setlk64(unsigned int fd, struct file *file,  in fcntl_setlk64()  argument
1222 static inline int fcntl_setlease(unsigned int fd, struct file *filp, long arg)  in fcntl_setlease()
1227 static inline int fcntl_getlease(struct file *filp)  in fcntl_getlease()
1252 static inline void locks_remove_posix(struct file *filp, fl_owner_t owner)  in locks_remove_posix()
1257 static inline void locks_remove_file(struct file *filp)  in locks_remove_file()
1262 static inline void posix_test_lock(struct file *filp, struct file_lock *fl)  in posix_test_lock()
1267 static inline int posix_lock_file(struct file *filp, struct file_lock *fl,  in posix_lock_file()
1278 static inline int vfs_test_lock(struct file *filp, struct file_lock *fl)  in vfs_test_lock()
1283 static inline int vfs_lock_file(struct file *filp, unsigned int cmd,  in vfs_lock_file()
1289 static inline int vfs_cancel_lock(struct file *filp, struct file_lock *fl)  in vfs_cancel_lock()
1310 static inline int generic_setlease(struct file *filp, long arg,  in generic_setlease()
1316 static inline int vfs_setlease(struct file *filp, long arg,  in vfs_setlease()
1330 			struct file *filp, struct files_struct *files) {}  in show_fd_locks()
1333 static inline struct inode *file_inode(const struct file *f)  in file_inode()
1338 static inline struct dentry *file_dentry(const struct file *file)  in file_dentry()  argument
1340 	return d_real(file->f_path.dentry, file_inode(file));  in file_dentry()
1343 static inline int locks_lock_file_wait(struct file *filp, struct file_lock *fl)  in locks_lock_file_wait()
1353 	struct file		*fa_file;
1360 extern int fasync_helper(int, struct file *, int, struct fasync_struct **);
1361 extern struct fasync_struct *fasync_insert_entry(int, struct file *, struct fasync_struct **, struc…
1362 extern int fasync_remove_entry(struct file *, struct fasync_struct **);
1369 extern void __f_setown(struct file *filp, struct pid *, enum pid_type, int force);
1370 extern int f_setown(struct file *filp, unsigned long arg, int force);
1371 extern void f_delown(struct file *filp);
1372 extern pid_t f_getown(struct file *filp);
1794 int vfs_fchown(struct file *file, uid_t user, gid_t group);
1795 int vfs_fchmod(struct file *file, umode_t mode);
1798 extern long vfs_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
1801 extern long compat_ptr_ioctl(struct file *file, unsigned int cmd,
1880 	loff_t (*llseek) (struct file *, loff_t, int);
1881 	ssize_t (*read) (struct file *, char __user *, size_t, loff_t *);
1882 	ssize_t (*write) (struct file *, const char __user *, size_t, loff_t *);
1886 	int (*iterate) (struct file *, struct dir_context *);
1887 	int (*iterate_shared) (struct file *, struct dir_context *);
1888 	__poll_t (*poll) (struct file *, struct poll_table_struct *);
1889 	long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long);
1890 	long (*compat_ioctl) (struct file *, unsigned int, unsigned long);
1891 	int (*mmap) (struct file *, struct vm_area_struct *);
1893 	int (*open) (struct inode *, struct file *);
1894 	int (*flush) (struct file *, fl_owner_t id);
1895 	int (*release) (struct inode *, struct file *);
1896 	int (*fsync) (struct file *, loff_t, loff_t, int datasync);
1897 	int (*fasync) (int, struct file *, int);
1898 	int (*lock) (struct file *, int, struct file_lock *);
1899 	ssize_t (*sendpage) (struct file *, struct page *, int, size_t, loff_t *, int);
1900 …unsigned long (*get_unmapped_area)(struct file *, unsigned long, unsigned long, unsigned long, uns…
1902 	int (*flock) (struct file *, int, struct file_lock *);
1903 	ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
1904 	ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
1905 	int (*setlease)(struct file *, long, struct file_lock **, void **);
1906 	long (*fallocate)(struct file *file, int mode, loff_t offset,
1908 	void (*show_fdinfo)(struct seq_file *m, struct file *f);
1910 	unsigned (*mmap_capabilities)(struct file *);
1912 	ssize_t (*copy_file_range)(struct file *, loff_t, struct file *,
1914 	loff_t (*remap_file_range)(struct file *file_in, loff_t pos_in,
1915 				   struct file *file_out, loff_t pos_out,
1917 	int (*fadvise)(struct file *, loff_t, loff_t, int);
1949 			   struct file *, unsigned open_flag,
1960 static inline ssize_t call_read_iter(struct file *file, struct kiocb *kio,  in call_read_iter()  argument
1963 	return file->f_op->read_iter(kio, iter);  in call_read_iter()
1966 static inline ssize_t call_write_iter(struct file *file, struct kiocb *kio,  in call_write_iter()  argument
1969 	return file->f_op->write_iter(kio, iter);  in call_write_iter()
1972 static inline int call_mmap(struct file *file, struct vm_area_struct *vma)  in call_mmap()  argument
1974 	return file->f_op->mmap(file, vma);  in call_mmap()
1977 extern ssize_t vfs_read(struct file *, char __user *, size_t, loff_t *);
1978 extern ssize_t vfs_write(struct file *, const char __user *, size_t, loff_t *);
1979 extern ssize_t vfs_copy_file_range(struct file *, loff_t , struct file *,
1981 extern ssize_t generic_copy_file_range(struct file *file_in, loff_t pos_in,
1982 				       struct file *file_out, loff_t pos_out,
1984 extern int generic_remap_file_range_prep(struct file *file_in, loff_t pos_in,
1985 					 struct file *file_out, loff_t pos_out,
1988 extern loff_t do_clone_file_range(struct file *file_in, loff_t pos_in,
1989 				  struct file *file_out, loff_t pos_out,
1991 extern loff_t vfs_clone_file_range(struct file *file_in, loff_t pos_in,
1992 				   struct file *file_out, loff_t pos_out,
1994 extern int vfs_dedupe_file_range(struct file *file,
1996 extern loff_t vfs_dedupe_file_range_one(struct file *src_file, loff_t src_pos,
1997 					struct file *dst_file, loff_t dst_pos,
2116 static inline enum rw_hint file_write_hint(struct file *file)  in file_write_hint()  argument
2118 	if (file->f_write_hint != WRITE_LIFE_NOT_SET)  in file_write_hint()
2119 		return file->f_write_hint;  in file_write_hint()
2121 	return file_inode(file)->i_write_hint;  in file_write_hint()
2124 static inline int iocb_flags(struct file *file);
2135 static inline void init_sync_kiocb(struct kiocb *kiocb, struct file *filp)  in init_sync_kiocb()
2146 			       struct file *filp)  in kiocb_clone()
2290 static inline void file_accessed(struct file *file)  in file_accessed()  argument
2292 	if (!(file->f_flags & O_NOATIME))  in file_accessed()
2293 		touch_atime(&file->f_path);  in file_accessed()
2296 extern int file_modified(struct file *file);
2377 		struct file *__file = (f); \
2416 extern int locks_mandatory_locked(struct file *);
2417 extern int locks_mandatory_area(struct inode *, struct file *, loff_t, loff_t, unsigned char);
2439 static inline int locks_verify_locked(struct file *file)  in locks_verify_locked()  argument
2441 	if (mandatory_lock(locks_inode(file)))  in locks_verify_locked()
2442 		return locks_mandatory_locked(file);  in locks_verify_locked()
2447 				    struct file *f,  in locks_verify_truncate()
2464 static inline int locks_mandatory_locked(struct file *file)  in locks_mandatory_locked()  argument
2469 static inline int locks_mandatory_area(struct inode *inode, struct file *filp,  in locks_mandatory_area()
2485 static inline int locks_verify_locked(struct file *file)  in locks_verify_locked()  argument
2490 static inline int locks_verify_truncate(struct inode *inode, struct file *filp,  in locks_verify_truncate()
2602 		       struct file *filp);
2603 extern int vfs_fallocate(struct file *file, int mode, loff_t offset,
2607 extern struct file *file_open_name(struct filename *, int, umode_t);
2608 extern struct file *filp_open(const char *, int, umode_t);
2609 extern struct file *filp_open_block(const char *, int, umode_t);
2610 extern struct file *file_open_root(struct dentry *, struct vfsmount *,
2612 extern struct file * dentry_open(const struct path *, int, const struct cred *);
2613 extern struct file * open_with_fake_path(const struct path *, int,
2615 static inline struct file *file_clone_open(struct file *file)  in file_clone_open()  argument
2617 	return dentry_open(&file->f_path, file->f_flags, file->f_cred);  in file_clone_open()
2619 extern int filp_close(struct file *, fl_owner_t id);
2626 extern int finish_open(struct file *file, struct dentry *dentry,
2627 			int (*open)(struct inode *, struct file *));
2628 extern int finish_no_open(struct file *file, struct dentry *dentry);
2731 extern int __must_check file_fdatawait_range(struct file *file, loff_t lstart,
2733 extern int __must_check file_check_and_advance_wb_err(struct file *file);
2734 extern int __must_check file_write_and_wait_range(struct file *file,
2737 static inline int file_write_and_wait(struct file *file)  in file_write_and_wait()  argument
2739 	return file_write_and_wait_range(file, 0, LLONG_MAX);  in file_write_and_wait()
2798 static inline errseq_t file_sample_sb_err(struct file *file)  in file_sample_sb_err()  argument
2800 	return errseq_sample(&file->f_path.dentry->d_sb->s_wb_err);  in file_sample_sb_err()
2803 extern int vfs_fsync_range(struct file *file, loff_t start, loff_t end,
2805 extern int vfs_fsync(struct file *file, int datasync);
2807 extern int sync_file_range(struct file *file, loff_t offset, loff_t nbytes,
2855 static inline void file_start_write(struct file *file)  in file_start_write()  argument
2857 	if (!S_ISREG(file_inode(file)->i_mode))  in file_start_write()
2859 	sb_start_write(file_inode(file)->i_sb);  in file_start_write()
2862 static inline bool file_start_write_trylock(struct file *file)  in file_start_write_trylock()  argument
2864 	if (!S_ISREG(file_inode(file)->i_mode))  in file_start_write_trylock()
2866 	return sb_start_write_trylock(file_inode(file)->i_sb);  in file_start_write_trylock()
2869 static inline void file_end_write(struct file *file)  in file_end_write()  argument
2871 	if (!S_ISREG(file_inode(file)->i_mode))  in file_end_write()
2873 	__sb_end_write(file_inode(file)->i_sb, SB_FREEZE_WRITE);  in file_end_write()
2896 static inline int deny_write_access(struct file *file)  in deny_write_access()  argument
2898 	struct inode *inode = file_inode(file);  in deny_write_access()
2905 static inline void allow_write_access(struct file *file)  in allow_write_access()  argument
2907 	if (file)  in allow_write_access()
2908 		atomic_inc(&file_inode(file)->i_writecount);  in allow_write_access()
2937 extern ssize_t kernel_read(struct file *, void *, size_t, loff_t *);
2938 ssize_t __kernel_read(struct file *file, void *buf, size_t count, loff_t *pos);
2939 extern ssize_t kernel_write(struct file *, const void *, size_t, loff_t *);
2940 extern ssize_t __kernel_write(struct file *, const void *, size_t, loff_t *);
2941 extern struct file * open_exec(const char *);
2947 extern char *file_path(struct file *, char *, int);
2952 extern loff_t default_llseek(struct file *file, loff_t offset, int whence);
2954 extern loff_t vfs_llseek(struct file *file, loff_t offset, int whence);
3025 extern int file_remove_privs(struct file *);
3045 extern int generic_file_mmap(struct file *, struct vm_area_struct *);
3046 extern int generic_file_readonly_mmap(struct file *, struct vm_area_struct *);
3048 extern int generic_write_check_limits(struct file *file, loff_t pos,
3050 extern int generic_file_rw_checks(struct file *file_in, struct file *file_out);
3057 extern ssize_t generic_perform_write(struct file *, struct iov_iter *, loff_t);
3059 ssize_t vfs_iter_read(struct file *file, struct iov_iter *iter, loff_t *ppos,
3061 ssize_t vfs_iter_write(struct file *file, struct iov_iter *iter, loff_t *ppos,
3063 ssize_t vfs_iocb_iter_read(struct file *file, struct kiocb *iocb,
3065 ssize_t vfs_iocb_iter_write(struct file *file, struct kiocb *iocb,
3071 extern int blkdev_fsync(struct file *filp, loff_t start, loff_t end,
3076 extern ssize_t generic_file_splice_read(struct file *, loff_t *,
3079 		struct file *, loff_t *, size_t, unsigned int);
3081 		struct file *out, loff_t *, size_t len, unsigned int flags);
3082 extern long do_splice_direct(struct file *in, loff_t *ppos, struct file *out,
3088 extern loff_t noop_llseek(struct file *file, loff_t offset, int whence);
3089 extern loff_t no_llseek(struct file *file, loff_t offset, int whence);
3090 extern loff_t vfs_setpos(struct file *file, loff_t offset, loff_t maxsize);
3091 extern loff_t generic_file_llseek(struct file *file, loff_t offset, int whence);
3092 extern loff_t generic_file_llseek_size(struct file *file, loff_t offset,
3094 extern loff_t fixed_size_llseek(struct file *file, loff_t offset,
3096 extern loff_t no_seek_end_llseek_size(struct file *, loff_t, int, loff_t);
3097 extern loff_t no_seek_end_llseek(struct file *, loff_t, int);
3098 extern int generic_file_open(struct inode * inode, struct file * filp);
3099 extern int nonseekable_open(struct inode * inode, struct file * filp);
3100 extern int stream_open(struct inode * inode, struct file * filp);
3160 void dio_warn_stale_pagecache(struct file *filp);
3196 extern int iterate_dir(struct file *, struct dir_context *);
3227 extern int dcache_dir_open(struct inode *, struct file *);
3228 extern int dcache_dir_close(struct inode *, struct file *);
3229 extern loff_t dcache_dir_lseek(struct file *, loff_t, int);
3230 extern int dcache_readdir(struct file *, struct dir_context *);
3234 extern int simple_open(struct inode *inode, struct file *file);
3242 extern int noop_fsync(struct file *, loff_t, loff_t, int);
3248 extern int simple_readpage(struct file *file, struct page *page);
3249 extern int simple_write_begin(struct file *file, struct address_space *mapping,
3252 extern int simple_write_end(struct file *file, struct address_space *mapping,
3257 extern int simple_nosetlease(struct file *, long, struct file_lock **, void **);
3261 extern ssize_t generic_read_dir(struct file *, char __user *, size_t, loff_t *);
3278 extern int __generic_file_fsync(struct file *, loff_t, loff_t, int);
3279 extern int generic_file_fsync(struct file *, loff_t, loff_t, int);
3301 extern int file_update_time(struct file *file);
3322 static inline int iocb_flags(struct file *file)  in iocb_flags()  argument
3325 	if (file->f_flags & O_APPEND)  in iocb_flags()
3327 	if (file->f_flags & O_DIRECT)  in iocb_flags()
3329 	if ((file->f_flags & O_DSYNC) || IS_SYNC(file->f_mapping->host))  in iocb_flags()
3331 	if (file->f_flags & __O_SYNC)  in iocb_flags()
3393 char *simple_transaction_get(struct file *file, const char __user *buf,
3395 ssize_t simple_transaction_read(struct file *file, char __user *buf,
3397 int simple_transaction_release(struct inode *inode, struct file *file);
3399 void simple_transaction_set(struct file *file, size_t n);
3418 static int __fops ## _open(struct inode *inode, struct file *file)	\
3421 	return simple_attr_open(inode, file, __get, __set, __fmt);	\
3438 int simple_attr_open(struct inode *inode, struct file *file,
3441 int simple_attr_release(struct inode *inode, struct file *file);
3442 ssize_t simple_attr_read(struct file *file, char __user *buf,
3444 ssize_t simple_attr_write(struct file *file, const char __user *buf,
3493 static inline bool dir_emit_dot(struct file *file, struct dir_context *ctx)  in dir_emit_dot()  argument
3496 			  file->f_path.dentry->d_inode->i_ino, DT_DIR) == 0;  in dir_emit_dot()
3498 static inline bool dir_emit_dotdot(struct file *file, struct dir_context *ctx)  in dir_emit_dotdot()  argument
3501 			  parent_ino(file->f_path.dentry), DT_DIR) == 0;  in dir_emit_dotdot()
3503 static inline bool dir_emit_dots(struct file *file, struct dir_context *ctx)  in dir_emit_dots()  argument
3506 		if (!dir_emit_dot(file, ctx))  in dir_emit_dots()
3511 		if (!dir_emit_dotdot(file, ctx))  in dir_emit_dots()
3535 extern int vfs_fadvise(struct file *file, loff_t offset, loff_t len,
3537 extern int generic_fadvise(struct file *file, loff_t offset, loff_t len,