226 	struct file	*ia_file;
306 	struct file		*ki_filp;
344 	int (*readpage)(struct file *, struct page *);
356 	int (*readpages)(struct file *filp, struct address_space *mapping,
359 	int (*write_begin)(struct file *, struct address_space *mapping,
362 	int (*write_end)(struct file *, struct address_space *mapping,
387 	int (*swap_activate)(struct swap_info_struct *sis, struct file *file,
389 	void (*swap_deactivate)(struct file *file);
398 int pagecache_write_begin(struct file *, struct address_space *mapping,
402 int pagecache_write_end(struct file *, struct address_space *mapping,
882 struct file {  struct
930 static inline struct file *get_file(struct file *f)  in get_file()
1038 	struct file *fl_file;
1078 extern int fcntl_getlk(struct file *, unsigned int, struct flock *);
1079 extern int fcntl_setlk(unsigned int, struct file *, unsigned int,
1083 extern int fcntl_getlk64(struct file *, unsigned int, struct flock64 *);
1084 extern int fcntl_setlk64(unsigned int, struct file *, unsigned int,
1088 extern int fcntl_setlease(unsigned int fd, struct file *filp, long arg);
1089 extern int fcntl_getlease(struct file *filp);
1098 extern void locks_remove_posix(struct file *, fl_owner_t);
1099 extern void locks_remove_file(struct file *);
1101 extern void posix_test_lock(struct file *, struct file_lock *);
1102 extern int posix_lock_file(struct file *, struct file_lock *, struct file_lock *);
1104 extern int vfs_test_lock(struct file *, struct file_lock *);
1105 extern int vfs_lock_file(struct file *, unsigned int, struct file_lock *, struct file_lock *);
1106 extern int vfs_cancel_lock(struct file *filp, struct file_lock *fl);
1110 extern int generic_setlease(struct file *, long, struct file_lock **, void **priv);
1111 extern int vfs_setlease(struct file *, long, struct file_lock **, void **);
1115 			 struct file *filp, struct files_struct *files);
1117 static inline int fcntl_getlk(struct file *file, unsigned int cmd,  in fcntl_getlk()  argument
1123 static inline int fcntl_setlk(unsigned int fd, struct file *file,  in fcntl_setlk()  argument
1130 static inline int fcntl_getlk64(struct file *file, unsigned int cmd,  in fcntl_getlk64()  argument
1136 static inline int fcntl_setlk64(unsigned int fd, struct file *file,  in fcntl_setlk64()  argument
1142 static inline int fcntl_setlease(unsigned int fd, struct file *filp, long arg)  in fcntl_setlease()
1147 static inline int fcntl_getlease(struct file *filp)  in fcntl_getlease()
1172 static inline void locks_remove_posix(struct file *filp, fl_owner_t owner)  in locks_remove_posix()
1177 static inline void locks_remove_file(struct file *filp)  in locks_remove_file()
1182 static inline void posix_test_lock(struct file *filp, struct file_lock *fl)  in posix_test_lock()
1187 static inline int posix_lock_file(struct file *filp, struct file_lock *fl,  in posix_lock_file()
1198 static inline int vfs_test_lock(struct file *filp, struct file_lock *fl)  in vfs_test_lock()
1203 static inline int vfs_lock_file(struct file *filp, unsigned int cmd,  in vfs_lock_file()
1209 static inline int vfs_cancel_lock(struct file *filp, struct file_lock *fl)  in vfs_cancel_lock()
1230 static inline int generic_setlease(struct file *filp, long arg,  in generic_setlease()
1236 static inline int vfs_setlease(struct file *filp, long arg,  in vfs_setlease()
1250 			struct file *filp, struct files_struct *files) {}  in show_fd_locks()
1253 static inline struct inode *file_inode(const struct file *f)  in file_inode()
1258 static inline struct dentry *file_dentry(const struct file *file)  in file_dentry()  argument
1260 	return d_real(file->f_path.dentry, file_inode(file));  in file_dentry()
1263 static inline int locks_lock_file_wait(struct file *filp, struct file_lock *fl)  in locks_lock_file_wait()
1273 	struct file		*fa_file;
1280 extern int fasync_helper(int, struct file *, int, struct fasync_struct **);
1281 extern struct fasync_struct *fasync_insert_entry(int, struct file *, struct fasync_struct **, struc…
1282 extern int fasync_remove_entry(struct file *, struct fasync_struct **);
1289 extern void __f_setown(struct file *filp, struct pid *, enum pid_type, int force);
1290 extern int f_setown(struct file *filp, unsigned long arg, int force);
1291 extern void f_delown(struct file *filp);
1292 extern pid_t f_getown(struct file *filp);
1644 extern long vfs_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
1729 	loff_t (*llseek) (struct file *, loff_t, int);
1730 	ssize_t (*read) (struct file *, char __user *, size_t, loff_t *);
1731 	ssize_t (*write) (struct file *, const char __user *, size_t, loff_t *);
1734 	int (*iterate) (struct file *, struct dir_context *);
1735 	int (*iterate_shared) (struct file *, struct dir_context *);
1736 	__poll_t (*poll) (struct file *, struct poll_table_struct *);
1737 	long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long);
1738 	long (*compat_ioctl) (struct file *, unsigned int, unsigned long);
1739 	int (*mmap) (struct file *, struct vm_area_struct *);
1741 	int (*open) (struct inode *, struct file *);
1742 	int (*flush) (struct file *, fl_owner_t id);
1743 	int (*release) (struct inode *, struct file *);
1744 	int (*fsync) (struct file *, loff_t, loff_t, int datasync);
1745 	int (*fasync) (int, struct file *, int);
1746 	int (*lock) (struct file *, int, struct file_lock *);
1747 	ssize_t (*sendpage) (struct file *, struct page *, int, size_t, loff_t *, int);
1748 …unsigned long (*get_unmapped_area)(struct file *, unsigned long, unsigned long, unsigned long, uns…
1750 	int (*flock) (struct file *, int, struct file_lock *);
1751 	ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
1752 	ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
1753 	int (*setlease)(struct file *, long, struct file_lock **, void **);
1754 	long (*fallocate)(struct file *file, int mode, loff_t offset,
1756 	void (*show_fdinfo)(struct seq_file *m, struct file *f);
1758 	unsigned (*mmap_capabilities)(struct file *);
1760 	ssize_t (*copy_file_range)(struct file *, loff_t, struct file *,
1762 	int (*clone_file_range)(struct file *, loff_t, struct file *, loff_t,
1764 	int (*dedupe_file_range)(struct file *, loff_t, struct file *, loff_t,
1766 	int (*fadvise)(struct file *, loff_t, loff_t, int);
1793 			   struct file *, unsigned open_flag,
1799 static inline ssize_t call_read_iter(struct file *file, struct kiocb *kio,  in call_read_iter()  argument
1802 	return file->f_op->read_iter(kio, iter);  in call_read_iter()
1805 static inline ssize_t call_write_iter(struct file *file, struct kiocb *kio,  in call_write_iter()  argument
1808 	return file->f_op->write_iter(kio, iter);  in call_write_iter()
1811 static inline int call_mmap(struct file *file, struct vm_area_struct *vma)  in call_mmap()  argument
1813 	return file->f_op->mmap(file, vma);  in call_mmap()
1821 extern ssize_t __vfs_read(struct file *, char __user *, size_t, loff_t *);
1822 extern ssize_t vfs_read(struct file *, char __user *, size_t, loff_t *);
1823 extern ssize_t vfs_write(struct file *, const char __user *, size_t, loff_t *);
1824 extern ssize_t vfs_readv(struct file *, const struct iovec __user *,
1826 extern ssize_t vfs_copy_file_range(struct file *, loff_t , struct file *,
1831 extern int do_clone_file_range(struct file *file_in, loff_t pos_in,
1832 			       struct file *file_out, loff_t pos_out, u64 len);
1833 extern int vfs_clone_file_range(struct file *file_in, loff_t pos_in,
1834 				struct file *file_out, loff_t pos_out, u64 len);
1838 extern int vfs_dedupe_file_range(struct file *file,
1840 extern int vfs_dedupe_file_range_one(struct file *src_file, loff_t src_pos,
1841 				     struct file *dst_file, loff_t dst_pos,
1950 static inline enum rw_hint file_write_hint(struct file *file)  in file_write_hint()  argument
1952 	if (file->f_write_hint != WRITE_LIFE_NOT_SET)  in file_write_hint()
1953 		return file->f_write_hint;  in file_write_hint()
1955 	return file_inode(file)->i_write_hint;  in file_write_hint()
1958 static inline int iocb_flags(struct file *file);
1969 static inline void init_sync_kiocb(struct kiocb *kiocb, struct file *filp)  in init_sync_kiocb()
2104 static inline void file_accessed(struct file *file)  in file_accessed()  argument
2106 	if (!(file->f_flags & O_NOATIME))  in file_accessed()
2107 		touch_atime(&file->f_path);  in file_accessed()
2213 		struct file *__file = (f); \
2253 extern int locks_mandatory_locked(struct file *);
2254 extern int locks_mandatory_area(struct inode *, struct file *, loff_t, loff_t, unsigned char);
2276 static inline int locks_verify_locked(struct file *file)  in locks_verify_locked()  argument
2278 	if (mandatory_lock(locks_inode(file)))  in locks_verify_locked()
2279 		return locks_mandatory_locked(file);  in locks_verify_locked()
2284 				    struct file *f,  in locks_verify_truncate()
2301 static inline int locks_mandatory_locked(struct file *file)  in locks_mandatory_locked()  argument
2306 static inline int locks_mandatory_area(struct inode *inode, struct file *filp,  in locks_mandatory_area()
2322 static inline int locks_verify_locked(struct file *file)  in locks_verify_locked()  argument
2327 static inline int locks_verify_truncate(struct inode *inode, struct file *filp,  in locks_verify_truncate()
2438 		       struct file *filp);
2439 extern int vfs_fallocate(struct file *file, int mode, loff_t offset,
2443 extern struct file *file_open_name(struct filename *, int, umode_t);
2444 extern struct file *filp_open(const char *, int, umode_t);
2445 extern struct file *file_open_root(struct dentry *, struct vfsmount *,
2447 extern struct file * dentry_open(const struct path *, int, const struct cred *);
2448 extern struct file * open_with_fake_path(const struct path *, int,
2450 static inline struct file *file_clone_open(struct file *file)  in file_clone_open()  argument
2452 	return dentry_open(&file->f_path, file->f_flags, file->f_cred);  in file_clone_open()
2454 extern int filp_close(struct file *, fl_owner_t id);
2461 extern int finish_open(struct file *file, struct dentry *dentry,
2462 			int (*open)(struct inode *, struct file *));
2463 extern int finish_no_open(struct file *file, struct dentry *dentry);
2467 extern int ioctl_preallocate(struct file *filp, void __user *argp);
2539 extern long compat_blkdev_ioctl(struct file *, unsigned, unsigned long);
2660 extern int __must_check file_fdatawait_range(struct file *file, loff_t lstart,
2662 extern int __must_check file_check_and_advance_wb_err(struct file *file);
2663 extern int __must_check file_write_and_wait_range(struct file *file,
2666 static inline int file_write_and_wait(struct file *file)  in file_write_and_wait()  argument
2668 	return file_write_and_wait_range(file, 0, LLONG_MAX);  in file_write_and_wait()
2720 extern int vfs_fsync_range(struct file *file, loff_t start, loff_t end,
2722 extern int vfs_fsync(struct file *file, int datasync);
2757 static inline void file_start_write(struct file *file)  in file_start_write()  argument
2759 	if (!S_ISREG(file_inode(file)->i_mode))  in file_start_write()
2761 	__sb_start_write(file_inode(file)->i_sb, SB_FREEZE_WRITE, true);  in file_start_write()
2764 static inline bool file_start_write_trylock(struct file *file)  in file_start_write_trylock()  argument
2766 	if (!S_ISREG(file_inode(file)->i_mode))  in file_start_write_trylock()
2768 	return __sb_start_write(file_inode(file)->i_sb, SB_FREEZE_WRITE, false);  in file_start_write_trylock()
2771 static inline void file_end_write(struct file *file)  in file_end_write()  argument
2773 	if (!S_ISREG(file_inode(file)->i_mode))  in file_end_write()
2775 	__sb_end_write(file_inode(file)->i_sb, SB_FREEZE_WRITE);  in file_end_write()
2798 static inline int deny_write_access(struct file *file)  in deny_write_access()  argument
2800 	struct inode *inode = file_inode(file);  in deny_write_access()
2807 static inline void allow_write_access(struct file *file)  in allow_write_access()  argument
2809 	if (file)  in allow_write_access()
2810 		atomic_inc(&file_inode(file)->i_writecount);  in allow_write_access()
2869 extern int kernel_read_file(struct file *, void **, loff_t *, loff_t,
2875 extern ssize_t kernel_read(struct file *, void *, size_t, loff_t *);
2876 extern ssize_t kernel_write(struct file *, const void *, size_t, loff_t *);
2877 extern ssize_t __kernel_write(struct file *, const void *, size_t, loff_t *);
2878 extern struct file * open_exec(const char *);
2884 extern char *file_path(struct file *, char *, int);
2889 extern loff_t default_llseek(struct file *file, loff_t offset, int whence);
2891 extern loff_t vfs_llseek(struct file *file, loff_t offset, int whence);
2943 extern int file_remove_privs(struct file *);
2967 extern int generic_file_mmap(struct file *, struct vm_area_struct *);
2968 extern int generic_file_readonly_mmap(struct file *, struct vm_area_struct *);
2974 extern ssize_t generic_perform_write(struct file *, struct iov_iter *, loff_t);
2976 ssize_t vfs_iter_read(struct file *file, struct iov_iter *iter, loff_t *ppos,
2978 ssize_t vfs_iter_write(struct file *file, struct iov_iter *iter, loff_t *ppos,
2984 extern int blkdev_fsync(struct file *filp, loff_t start, loff_t end,
2989 extern ssize_t generic_file_splice_read(struct file *, loff_t *,
2992 		struct file *, loff_t *, size_t, unsigned int);
2994 		struct file *out, loff_t *, size_t len, unsigned int flags);
2995 extern long do_splice_direct(struct file *in, loff_t *ppos, struct file *out,
3001 extern loff_t noop_llseek(struct file *file, loff_t offset, int whence);
3002 extern loff_t no_llseek(struct file *file, loff_t offset, int whence);
3003 extern loff_t vfs_setpos(struct file *file, loff_t offset, loff_t maxsize);
3004 extern loff_t generic_file_llseek(struct file *file, loff_t offset, int whence);
3005 extern loff_t generic_file_llseek_size(struct file *file, loff_t offset,
3007 extern loff_t fixed_size_llseek(struct file *file, loff_t offset,
3009 extern loff_t no_seek_end_llseek_size(struct file *, loff_t, int, loff_t);
3010 extern loff_t no_seek_end_llseek(struct file *, loff_t, int);
3011 extern int generic_file_open(struct inode * inode, struct file * filp);
3012 extern int nonseekable_open(struct inode * inode, struct file * filp);
3027 void dio_warn_stale_pagecache(struct file *filp);
3106 extern int iterate_dir(struct file *, struct dir_context *);
3157 extern int dcache_dir_open(struct inode *, struct file *);
3158 extern int dcache_dir_close(struct inode *, struct file *);
3159 extern loff_t dcache_dir_lseek(struct file *, loff_t, int);
3160 extern int dcache_readdir(struct file *, struct dir_context *);
3164 extern int simple_open(struct inode *inode, struct file *file);
3170 extern int noop_fsync(struct file *, loff_t, loff_t, int);
3176 extern int simple_readpage(struct file *file, struct page *page);
3177 extern int simple_write_begin(struct file *file, struct address_space *mapping,
3180 extern int simple_write_end(struct file *file, struct address_space *mapping,
3185 extern int simple_nosetlease(struct file *, long, struct file_lock **, void **);
3189 extern ssize_t generic_read_dir(struct file *, char __user *, size_t, loff_t *);
3206 extern int __generic_file_fsync(struct file *, loff_t, loff_t, int);
3207 extern int generic_file_fsync(struct file *, loff_t, loff_t, int);
3223 extern int file_update_time(struct file *file);
3225 static inline bool io_is_direct(struct file *filp)  in io_is_direct()
3249 static inline int iocb_flags(struct file *file)  in iocb_flags()  argument
3252 	if (file->f_flags & O_APPEND)  in iocb_flags()
3254 	if (io_is_direct(file))  in iocb_flags()
3256 	if ((file->f_flags & O_DSYNC) || IS_SYNC(file->f_mapping->host))  in iocb_flags()
3258 	if (file->f_flags & __O_SYNC)  in iocb_flags()
3311 char *simple_transaction_get(struct file *file, const char __user *buf,
3313 ssize_t simple_transaction_read(struct file *file, char __user *buf,
3315 int simple_transaction_release(struct inode *inode, struct file *file);
3317 void simple_transaction_set(struct file *file, size_t n);
3336 static int __fops ## _open(struct inode *inode, struct file *file)	\
3339 	return simple_attr_open(inode, file, __get, __set, __fmt);	\
3356 int simple_attr_open(struct inode *inode, struct file *file,
3359 int simple_attr_release(struct inode *inode, struct file *file);
3360 ssize_t simple_attr_read(struct file *file, char __user *buf,
3362 ssize_t simple_attr_write(struct file *file, const char __user *buf,
3411 static inline bool dir_emit_dot(struct file *file, struct dir_context *ctx)  in dir_emit_dot()  argument
3414 			  file->f_path.dentry->d_inode->i_ino, DT_DIR) == 0;  in dir_emit_dot()
3416 static inline bool dir_emit_dotdot(struct file *file, struct dir_context *ctx)  in dir_emit_dotdot()  argument
3419 			  parent_ino(file->f_path.dentry), DT_DIR) == 0;  in dir_emit_dotdot()
3421 static inline bool dir_emit_dots(struct file *file, struct dir_context *ctx)  in dir_emit_dots()  argument
3424 		if (!dir_emit_dot(file, ctx))  in dir_emit_dots()
3429 		if (!dir_emit_dotdot(file, ctx))  in dir_emit_dots()
3453 extern int vfs_fadvise(struct file *file, loff_t offset, loff_t len,