234 	struct file	*ia_file;
321 	struct file		*ki_filp;
369 	int (*readpage)(struct file *, struct page *);
381 	int (*readpages)(struct file *filp, struct address_space *mapping,
385 	int (*write_begin)(struct file *, struct address_space *mapping,
388 	int (*write_end)(struct file *, struct address_space *mapping,
413 	int (*swap_activate)(struct swap_info_struct *sis, struct file *file,
415 	void (*swap_deactivate)(struct file *file);
424 int pagecache_write_begin(struct file *, struct address_space *mapping,
428 int pagecache_write_end(struct file *, struct address_space *mapping,
916 struct file {  struct
965 static inline struct file *get_file(struct file *f)  in get_file()
1078 	struct file *fl_file;
1119 extern int fcntl_getlk(struct file *, unsigned int, struct flock *);
1120 extern int fcntl_setlk(unsigned int, struct file *, unsigned int,
1124 extern int fcntl_getlk64(struct file *, unsigned int, struct flock64 *);
1125 extern int fcntl_setlk64(unsigned int, struct file *, unsigned int,
1129 extern int fcntl_setlease(unsigned int fd, struct file *filp, long arg);
1130 extern int fcntl_getlease(struct file *filp);
1139 extern void locks_remove_posix(struct file *, fl_owner_t);
1140 extern void locks_remove_file(struct file *);
1142 extern void posix_test_lock(struct file *, struct file_lock *);
1143 extern int posix_lock_file(struct file *, struct file_lock *, struct file_lock *);
1145 extern int vfs_test_lock(struct file *, struct file_lock *);
1146 extern int vfs_lock_file(struct file *, unsigned int, struct file_lock *, struct file_lock *);
1147 extern int vfs_cancel_lock(struct file *filp, struct file_lock *fl);
1151 extern int generic_setlease(struct file *, long, struct file_lock **, void **priv);
1152 extern int vfs_setlease(struct file *, long, struct file_lock **, void **);
1161 			 struct file *filp, struct files_struct *files);
1163 static inline int fcntl_getlk(struct file *file, unsigned int cmd,  in fcntl_getlk()  argument
1169 static inline int fcntl_setlk(unsigned int fd, struct file *file,  in fcntl_setlk()  argument
1176 static inline int fcntl_getlk64(struct file *file, unsigned int cmd,  in fcntl_getlk64()  argument
1182 static inline int fcntl_setlk64(unsigned int fd, struct file *file,  in fcntl_setlk64()  argument
1188 static inline int fcntl_setlease(unsigned int fd, struct file *filp, long arg)  in fcntl_setlease()
1193 static inline int fcntl_getlease(struct file *filp)  in fcntl_getlease()
1218 static inline void locks_remove_posix(struct file *filp, fl_owner_t owner)  in locks_remove_posix()
1223 static inline void locks_remove_file(struct file *filp)  in locks_remove_file()
1228 static inline void posix_test_lock(struct file *filp, struct file_lock *fl)  in posix_test_lock()
1233 static inline int posix_lock_file(struct file *filp, struct file_lock *fl,  in posix_lock_file()
1244 static inline int vfs_test_lock(struct file *filp, struct file_lock *fl)  in vfs_test_lock()
1249 static inline int vfs_lock_file(struct file *filp, unsigned int cmd,  in vfs_lock_file()
1255 static inline int vfs_cancel_lock(struct file *filp, struct file_lock *fl)  in vfs_cancel_lock()
1276 static inline int generic_setlease(struct file *filp, long arg,  in generic_setlease()
1282 static inline int vfs_setlease(struct file *filp, long arg,  in vfs_setlease()
1296 			struct file *filp, struct files_struct *files) {}  in show_fd_locks()
1299 static inline struct inode *file_inode(const struct file *f)  in file_inode()
1304 static inline struct dentry *file_dentry(const struct file *file)  in file_dentry()  argument
1306 	return d_real(file->f_path.dentry, file_inode(file));  in file_dentry()
1309 static inline int locks_lock_file_wait(struct file *filp, struct file_lock *fl)  in locks_lock_file_wait()
1319 	struct file		*fa_file;
1326 extern int fasync_helper(int, struct file *, int, struct fasync_struct **);
1327 extern struct fasync_struct *fasync_insert_entry(int, struct file *, struct fasync_struct **, struc…
1328 extern int fasync_remove_entry(struct file *, struct fasync_struct **);
1335 extern void __f_setown(struct file *filp, struct pid *, enum pid_type, int force);
1336 extern int f_setown(struct file *filp, unsigned long arg, int force);
1337 extern void f_delown(struct file *filp);
1338 extern pid_t f_getown(struct file *filp);
1746 int vfs_fchown(struct file *file, uid_t user, gid_t group);
1747 int vfs_fchmod(struct file *file, umode_t mode);
1750 extern long vfs_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
1753 extern long compat_ptr_ioctl(struct file *file, unsigned int cmd,
1824 	loff_t (*llseek) (struct file *, loff_t, int);
1825 	ssize_t (*read) (struct file *, char __user *, size_t, loff_t *);
1826 	ssize_t (*write) (struct file *, const char __user *, size_t, loff_t *);
1830 	int (*iterate) (struct file *, struct dir_context *);
1831 	int (*iterate_shared) (struct file *, struct dir_context *);
1832 	__poll_t (*poll) (struct file *, struct poll_table_struct *);
1833 	long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long);
1834 	long (*compat_ioctl) (struct file *, unsigned int, unsigned long);
1835 	int (*mmap) (struct file *, struct vm_area_struct *);
1837 	int (*open) (struct inode *, struct file *);
1838 	int (*flush) (struct file *, fl_owner_t id);
1839 	int (*release) (struct inode *, struct file *);
1840 	int (*fsync) (struct file *, loff_t, loff_t, int datasync);
1841 	int (*fasync) (int, struct file *, int);
1842 	int (*lock) (struct file *, int, struct file_lock *);
1843 	ssize_t (*sendpage) (struct file *, struct page *, int, size_t, loff_t *, int);
1844 …unsigned long (*get_unmapped_area)(struct file *, unsigned long, unsigned long, unsigned long, uns…
1846 	int (*flock) (struct file *, int, struct file_lock *);
1847 	ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
1848 	ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
1849 	int (*setlease)(struct file *, long, struct file_lock **, void **);
1850 	long (*fallocate)(struct file *file, int mode, loff_t offset,
1852 	void (*show_fdinfo)(struct seq_file *m, struct file *f);
1854 	unsigned (*mmap_capabilities)(struct file *);
1856 	ssize_t (*copy_file_range)(struct file *, loff_t, struct file *,
1858 	loff_t (*remap_file_range)(struct file *file_in, loff_t pos_in,
1859 				   struct file *file_out, loff_t pos_out,
1861 	int (*fadvise)(struct file *, loff_t, loff_t, int);
1888 			   struct file *, unsigned open_flag,
1894 static inline ssize_t call_read_iter(struct file *file, struct kiocb *kio,  in call_read_iter()  argument
1897 	return file->f_op->read_iter(kio, iter);  in call_read_iter()
1900 static inline ssize_t call_write_iter(struct file *file, struct kiocb *kio,  in call_write_iter()  argument
1903 	return file->f_op->write_iter(kio, iter);  in call_write_iter()
1906 static inline int call_mmap(struct file *file, struct vm_area_struct *vma)  in call_mmap()  argument
1908 	return file->f_op->mmap(file, vma);  in call_mmap()
1911 extern ssize_t vfs_read(struct file *, char __user *, size_t, loff_t *);
1912 extern ssize_t vfs_write(struct file *, const char __user *, size_t, loff_t *);
1913 extern ssize_t vfs_copy_file_range(struct file *, loff_t , struct file *,
1915 extern ssize_t generic_copy_file_range(struct file *file_in, loff_t pos_in,
1916 				       struct file *file_out, loff_t pos_out,
1918 extern int generic_remap_file_range_prep(struct file *file_in, loff_t pos_in,
1919 					 struct file *file_out, loff_t pos_out,
1922 extern loff_t do_clone_file_range(struct file *file_in, loff_t pos_in,
1923 				  struct file *file_out, loff_t pos_out,
1925 extern loff_t vfs_clone_file_range(struct file *file_in, loff_t pos_in,
1926 				   struct file *file_out, loff_t pos_out,
1928 extern int vfs_dedupe_file_range(struct file *file,
1930 extern loff_t vfs_dedupe_file_range_one(struct file *src_file, loff_t src_pos,
1931 					struct file *dst_file, loff_t dst_pos,
2045 static inline enum rw_hint file_write_hint(struct file *file)  in file_write_hint()  argument
2047 	if (file->f_write_hint != WRITE_LIFE_NOT_SET)  in file_write_hint()
2048 		return file->f_write_hint;  in file_write_hint()
2050 	return file_inode(file)->i_write_hint;  in file_write_hint()
2053 static inline int iocb_flags(struct file *file);
2064 static inline void init_sync_kiocb(struct kiocb *kiocb, struct file *filp)  in init_sync_kiocb()
2075 			       struct file *filp)  in kiocb_clone()
2217 static inline void file_accessed(struct file *file)  in file_accessed()  argument
2219 	if (!(file->f_flags & O_NOATIME))  in file_accessed()
2220 		touch_atime(&file->f_path);  in file_accessed()
2223 extern int file_modified(struct file *file);
2299 		struct file *__file = (f); \
2338 extern int locks_mandatory_locked(struct file *);
2339 extern int locks_mandatory_area(struct inode *, struct file *, loff_t, loff_t, unsigned char);
2361 static inline int locks_verify_locked(struct file *file)  in locks_verify_locked()  argument
2363 	if (mandatory_lock(locks_inode(file)))  in locks_verify_locked()
2364 		return locks_mandatory_locked(file);  in locks_verify_locked()
2369 				    struct file *f,  in locks_verify_truncate()
2386 static inline int locks_mandatory_locked(struct file *file)  in locks_mandatory_locked()  argument
2391 static inline int locks_mandatory_area(struct inode *inode, struct file *filp,  in locks_mandatory_area()
2407 static inline int locks_verify_locked(struct file *file)  in locks_verify_locked()  argument
2412 static inline int locks_verify_truncate(struct inode *inode, struct file *filp,  in locks_verify_truncate()
2524 		       struct file *filp);
2525 extern int vfs_fallocate(struct file *file, int mode, loff_t offset,
2529 extern struct file *file_open_name(struct filename *, int, umode_t);
2530 extern struct file *filp_open(const char *, int, umode_t);
2531 extern struct file *file_open_root(struct dentry *, struct vfsmount *,
2533 extern struct file * dentry_open(const struct path *, int, const struct cred *);
2534 extern struct file * open_with_fake_path(const struct path *, int,
2536 static inline struct file *file_clone_open(struct file *file)  in file_clone_open()  argument
2538 	return dentry_open(&file->f_path, file->f_flags, file->f_cred);  in file_clone_open()
2540 extern int filp_close(struct file *, fl_owner_t id);
2547 extern int finish_open(struct file *file, struct dentry *dentry,
2548 			int (*open)(struct inode *, struct file *));
2549 extern int finish_no_open(struct file *file, struct dentry *dentry);
2652 extern int __must_check file_fdatawait_range(struct file *file, loff_t lstart,
2654 extern int __must_check file_check_and_advance_wb_err(struct file *file);
2655 extern int __must_check file_write_and_wait_range(struct file *file,
2658 static inline int file_write_and_wait(struct file *file)  in file_write_and_wait()  argument
2660 	return file_write_and_wait_range(file, 0, LLONG_MAX);  in file_write_and_wait()
2719 static inline errseq_t file_sample_sb_err(struct file *file)  in file_sample_sb_err()  argument
2721 	return errseq_sample(&file->f_path.dentry->d_sb->s_wb_err);  in file_sample_sb_err()
2724 extern int vfs_fsync_range(struct file *file, loff_t start, loff_t end,
2726 extern int vfs_fsync(struct file *file, int datasync);
2728 extern int sync_file_range(struct file *file, loff_t offset, loff_t nbytes,
2771 static inline void file_start_write(struct file *file)  in file_start_write()  argument
2773 	if (!S_ISREG(file_inode(file)->i_mode))  in file_start_write()
2775 	sb_start_write(file_inode(file)->i_sb);  in file_start_write()
2778 static inline bool file_start_write_trylock(struct file *file)  in file_start_write_trylock()  argument
2780 	if (!S_ISREG(file_inode(file)->i_mode))  in file_start_write_trylock()
2782 	return sb_start_write_trylock(file_inode(file)->i_sb);  in file_start_write_trylock()
2785 static inline void file_end_write(struct file *file)  in file_end_write()  argument
2787 	if (!S_ISREG(file_inode(file)->i_mode))  in file_end_write()
2789 	__sb_end_write(file_inode(file)->i_sb, SB_FREEZE_WRITE);  in file_end_write()
2812 static inline int deny_write_access(struct file *file)  in deny_write_access()  argument
2814 	struct inode *inode = file_inode(file);  in deny_write_access()
2821 static inline void allow_write_access(struct file *file)  in allow_write_access()  argument
2823 	if (file)  in allow_write_access()
2824 		atomic_inc(&file_inode(file)->i_writecount);  in allow_write_access()
2853 extern ssize_t kernel_read(struct file *, void *, size_t, loff_t *);
2854 ssize_t __kernel_read(struct file *file, void *buf, size_t count, loff_t *pos);
2855 extern ssize_t kernel_write(struct file *, const void *, size_t, loff_t *);
2856 extern ssize_t __kernel_write(struct file *, const void *, size_t, loff_t *);
2857 extern struct file * open_exec(const char *);
2863 extern char *file_path(struct file *, char *, int);
2868 extern loff_t default_llseek(struct file *file, loff_t offset, int whence);
2870 extern loff_t vfs_llseek(struct file *file, loff_t offset, int whence);
2942 extern int file_remove_privs(struct file *);
2962 extern int generic_file_mmap(struct file *, struct vm_area_struct *);
2963 extern int generic_file_readonly_mmap(struct file *, struct vm_area_struct *);
2965 extern int generic_write_check_limits(struct file *file, loff_t pos,
2967 extern int generic_file_rw_checks(struct file *file_in, struct file *file_out);
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,
2980 ssize_t vfs_iocb_iter_read(struct file *file, struct kiocb *iocb,
2982 ssize_t vfs_iocb_iter_write(struct file *file, struct kiocb *iocb,
2988 extern int blkdev_fsync(struct file *filp, loff_t start, loff_t end,
2993 extern ssize_t generic_file_splice_read(struct file *, loff_t *,
2996 		struct file *, loff_t *, size_t, unsigned int);
2998 		struct file *out, loff_t *, size_t len, unsigned int flags);
2999 extern long do_splice_direct(struct file *in, loff_t *ppos, struct file *out,
3005 extern loff_t noop_llseek(struct file *file, loff_t offset, int whence);
3006 extern loff_t no_llseek(struct file *file, loff_t offset, int whence);
3007 extern loff_t vfs_setpos(struct file *file, loff_t offset, loff_t maxsize);
3008 extern loff_t generic_file_llseek(struct file *file, loff_t offset, int whence);
3009 extern loff_t generic_file_llseek_size(struct file *file, loff_t offset,
3011 extern loff_t fixed_size_llseek(struct file *file, loff_t offset,
3013 extern loff_t no_seek_end_llseek_size(struct file *, loff_t, int, loff_t);
3014 extern loff_t no_seek_end_llseek(struct file *, loff_t, int);
3015 extern int generic_file_open(struct inode * inode, struct file * filp);
3016 extern int nonseekable_open(struct inode * inode, struct file * filp);
3017 extern int stream_open(struct inode * inode, struct file * filp);
3077 void dio_warn_stale_pagecache(struct file *filp);
3113 extern int iterate_dir(struct file *, struct dir_context *);
3144 extern int dcache_dir_open(struct inode *, struct file *);
3145 extern int dcache_dir_close(struct inode *, struct file *);
3146 extern loff_t dcache_dir_lseek(struct file *, loff_t, int);
3147 extern int dcache_readdir(struct file *, struct dir_context *);
3151 extern int simple_open(struct inode *inode, struct file *file);
3159 extern int noop_fsync(struct file *, loff_t, loff_t, int);
3165 extern int simple_readpage(struct file *file, struct page *page);
3166 extern int simple_write_begin(struct file *file, struct address_space *mapping,
3169 extern int simple_write_end(struct file *file, struct address_space *mapping,
3174 extern int simple_nosetlease(struct file *, long, struct file_lock **, void **);
3178 extern ssize_t generic_read_dir(struct file *, char __user *, size_t, loff_t *);
3195 extern int __generic_file_fsync(struct file *, loff_t, loff_t, int);
3196 extern int generic_file_fsync(struct file *, loff_t, loff_t, int);
3222 extern int file_update_time(struct file *file);
3243 static inline int iocb_flags(struct file *file)  in iocb_flags()  argument
3246 	if (file->f_flags & O_APPEND)  in iocb_flags()
3248 	if (file->f_flags & O_DIRECT)  in iocb_flags()
3250 	if ((file->f_flags & O_DSYNC) || IS_SYNC(file->f_mapping->host))  in iocb_flags()
3252 	if (file->f_flags & __O_SYNC)  in iocb_flags()
3309 char *simple_transaction_get(struct file *file, const char __user *buf,
3311 ssize_t simple_transaction_read(struct file *file, char __user *buf,
3313 int simple_transaction_release(struct inode *inode, struct file *file);
3315 void simple_transaction_set(struct file *file, size_t n);
3334 static int __fops ## _open(struct inode *inode, struct file *file)	\
3337 	return simple_attr_open(inode, file, __get, __set, __fmt);	\
3354 int simple_attr_open(struct inode *inode, struct file *file,
3357 int simple_attr_release(struct inode *inode, struct file *file);
3358 ssize_t simple_attr_read(struct file *file, char __user *buf,
3360 ssize_t simple_attr_write(struct file *file, const char __user *buf,
3409 static inline bool dir_emit_dot(struct file *file, struct dir_context *ctx)  in dir_emit_dot()  argument
3412 			  file->f_path.dentry->d_inode->i_ino, DT_DIR) == 0;  in dir_emit_dot()
3414 static inline bool dir_emit_dotdot(struct file *file, struct dir_context *ctx)  in dir_emit_dotdot()  argument
3417 			  parent_ino(file->f_path.dentry), DT_DIR) == 0;  in dir_emit_dotdot()
3419 static inline bool dir_emit_dots(struct file *file, struct dir_context *ctx)  in dir_emit_dots()  argument
3422 		if (!dir_emit_dot(file, ctx))  in dir_emit_dots()
3427 		if (!dir_emit_dotdot(file, ctx))  in dir_emit_dots()
3451 extern int vfs_fadvise(struct file *file, loff_t offset, loff_t len,
3453 extern int generic_fadvise(struct file *file, loff_t offset, loff_t len,