42 	struct file *f = container_of(head, struct file, f_u.fu_rcuhead);  in file_free_rcu()
48 static inline void file_free(struct file *f)  in file_free()
76 int proc_nr_files(ctl_table *table, int write, struct file *filp,  in proc_nr_files()
83 int proc_nr_files(ctl_table *table, int write, struct file *filp,  in proc_nr_files()
100 struct file *get_empty_filp(void)  in get_empty_filp()
104 	struct file * f;  in get_empty_filp()
166 struct file *alloc_file(struct vfsmount *mnt, struct dentry *dentry,  in alloc_file()
169 	struct file *file;  in alloc_file()  local
172 	file = get_empty_filp();  in alloc_file()
173 	if (!file)  in alloc_file()
176 	init_file(file, mnt, dentry, mode, fop);  in alloc_file()
177 	return file;  in alloc_file()
198 int init_file(struct file *file, struct vfsmount *mnt, struct dentry *dentry,  in init_file()  argument
202 	file->f_path.dentry = dentry;  in init_file()
203 	file->f_path.mnt = mntget(mnt);  in init_file()
204 	file->f_mapping = dentry->d_inode->i_mapping;  in init_file()
205 	file->f_mode = mode;  in init_file()
206 	file->f_op = fop;  in init_file()
215 		file_take_write(file);  in init_file()
223 void fput(struct file *file)  in fput()  argument
225 	if (atomic_long_dec_and_test(&file->f_count))  in fput()
226 		__fput(file);  in fput()
239 void drop_file_write_access(struct file *file)  in drop_file_write_access()  argument
241 	struct vfsmount *mnt = file->f_path.mnt;  in drop_file_write_access()
242 	struct dentry *dentry = file->f_path.dentry;  in drop_file_write_access()
249 	if (file_check_writeable(file) != 0)  in drop_file_write_access()
252 	file_release_write(file);  in drop_file_write_access()
259 void __fput(struct file *file)  in __fput()  argument
261 	struct dentry *dentry = file->f_path.dentry;  in __fput()
262 	struct vfsmount *mnt = file->f_path.mnt;  in __fput()
267 	fsnotify_close(file);  in __fput()
272 	eventpoll_release(file);  in __fput()
273 	locks_remove_flock(file);  in __fput()
275 	if (unlikely(file->f_flags & FASYNC)) {  in __fput()
276 		if (file->f_op && file->f_op->fasync)  in __fput()
277 			file->f_op->fasync(-1, file, 0);  in __fput()
279 	if (file->f_op && file->f_op->release)  in __fput()
280 		file->f_op->release(inode, file);  in __fput()
281 	security_file_free(file);  in __fput()
284 	fops_put(file->f_op);  in __fput()
285 	put_pid(file->f_owner.pid);  in __fput()
286 	file_kill(file);  in __fput()
287 	if (file->f_mode & FMODE_WRITE)  in __fput()
288 		drop_file_write_access(file);  in __fput()
289 	file->f_path.dentry = NULL;  in __fput()
290 	file->f_path.mnt = NULL;  in __fput()
291 	file_free(file);  in __fput()
296 struct file *fget(unsigned int fd)  in fget()
298 	struct file *file;  in fget()  local
302 	file = fcheck_files(files, fd);  in fget()
303 	if (file) {  in fget()
304 		if (!atomic_long_inc_not_zero(&file->f_count)) {  in fget()
312 	return file;  in fget()
324 struct file *fget_light(unsigned int fd, int *fput_needed)  in fget_light()
326 	struct file *file;  in fget_light()  local
331 		file = fcheck_files(files, fd);  in fget_light()
334 		file = fcheck_files(files, fd);  in fget_light()
335 		if (file) {  in fget_light()
336 			if (atomic_long_inc_not_zero(&file->f_count))  in fget_light()
340 				file = NULL;  in fget_light()
345 	return file;  in fget_light()
349 void put_filp(struct file *file)  in put_filp()  argument
351 	if (atomic_long_dec_and_test(&file->f_count)) {  in put_filp()
352 		security_file_free(file);  in put_filp()
353 		file_kill(file);  in put_filp()
354 		file_free(file);  in put_filp()
358 void file_move(struct file *file, struct list_head *list)  in file_move()  argument
363 	list_move(&file->f_u.fu_list, list);  in file_move()
367 void file_kill(struct file *file)  in file_kill()  argument
369 	if (!list_empty(&file->f_u.fu_list)) {  in file_kill()
371 		list_del_init(&file->f_u.fu_list);  in file_kill()
378 	struct file *file;  in fs_may_remount_ro()  local
382 	list_for_each_entry(file, &sb->s_files, f_u.fu_list) {  in fs_may_remount_ro()
383 		struct inode *inode = file->f_path.dentry->d_inode;  in fs_may_remount_ro()
390 		if (S_ISREG(inode->i_mode) && (file->f_mode & FMODE_WRITE))  in fs_may_remount_ro()
404 	filp_cachep = kmem_cache_create("filp", sizeof(struct file), 0,  in files_init()