82 	cpy = ofdt->max_fds * sizeof(struct file *);  in copy_fdtable()
83 	set = (nfdt->max_fds - ofdt->max_fds) * sizeof(struct file *);  in copy_fdtable()
117 	nr /= (1024 / sizeof(struct file *));  in alloc_fdtable()
119 	nr *= (1024 / sizeof(struct file *));  in alloc_fdtable()
136 	data = kvmalloc_array(nr, sizeof(struct file *), GFP_KERNEL_ACCOUNT);  in alloc_fdtable()
319 	struct file **old_fds, **new_fds;  in dup_fd()
383 		struct file *f = *old_fds++;  in dup_fd()
400 	memset(new_fds, 0, (new_fdt->max_fds - open_files) * sizeof(struct file *));  in dup_fd()
430 				struct file * file = xchg(&fdt->fd[i], NULL);  in close_files()  local
431 				if (file) {  in close_files()
432 					filp_close(file, files);  in close_files()
637 		struct file *file)  in __fd_install()  argument
648 		rcu_assign_pointer(fdt->fd[fd], file);  in __fd_install()
656 	rcu_assign_pointer(fdt->fd[fd], file);  in __fd_install()
664 void fd_install(unsigned int fd, struct file *file)  in fd_install()  argument
666 	__fd_install(current->files, fd, file);  in fd_install()
671 static struct file *pick_file(struct files_struct *files, unsigned fd)  in pick_file()
673 	struct file *file = NULL;  in pick_file()  local
680 	file = fdt->fd[fd];  in pick_file()
681 	if (!file)  in pick_file()
688 	return file;  in pick_file()
696 	struct file *file;  in __close_fd()  local
698 	file = pick_file(files, fd);  in __close_fd()
699 	if (!file)  in __close_fd()
702 	return filp_close(file, files);  in __close_fd()
760 		struct file *file;  in __close_range()  local
762 		file = pick_file(cur_fds, fd++);  in __close_range()
763 		if (!file)  in __close_range()
766 		filp_close(file, cur_fds);  in __close_range()
788 int __close_fd_get_file(unsigned int fd, struct file **res)  in __close_fd_get_file()
791 	struct file *file;  in __close_fd_get_file()  local
797 	file = fdt->fd[fd];  in __close_fd_get_file()
798 	if (!file)  in __close_fd_get_file()
802 	get_file(file);  in __close_fd_get_file()
803 	*res = file;  in __close_fd_get_file()
815 int close_fd_get_file(unsigned int fd, struct file **res)  in close_fd_get_file()
845 			struct file *file;  in do_close_on_exec()  local
848 			file = fdt->fd[fd];  in do_close_on_exec()
849 			if (!file)  in do_close_on_exec()
854 			filp_close(file, files);  in do_close_on_exec()
863 static inline struct file *__fget_files_rcu(struct files_struct *files,  in __fget_files_rcu()
867 		struct file *file;  in __fget_files_rcu()  local
869 		struct file __rcu **fdentry;  in __fget_files_rcu()
875 		file = rcu_dereference_raw(*fdentry);  in __fget_files_rcu()
876 		if (unlikely(!file))  in __fget_files_rcu()
879 		if (unlikely(file->f_mode & mask))  in __fget_files_rcu()
893 		if (unlikely(!get_file_rcu_many(file, refs)))  in __fget_files_rcu()
905 		    unlikely(rcu_dereference_raw(*fdentry) != file)) {  in __fget_files_rcu()
906 			fput_many(file, refs);  in __fget_files_rcu()
914 		return file;  in __fget_files_rcu()
918 static struct file *__fget_files(struct files_struct *files, unsigned int fd,  in __fget_files()
921 	struct file *file;  in __fget_files()  local
924 	file = __fget_files_rcu(files, fd, mask, refs);  in __fget_files()
927 	return file;  in __fget_files()
930 static inline struct file *__fget(unsigned int fd, fmode_t mask,  in __fget()
936 struct file *fget_many(unsigned int fd, unsigned int refs)  in fget_many()
941 struct file *fget(unsigned int fd)  in fget()
947 struct file *fget_raw(unsigned int fd)  in fget_raw()
953 struct file *fget_task(struct task_struct *task, unsigned int fd)  in fget_task()
955 	struct file *file = NULL;  in fget_task()  local
959 		file = __fget_files(task->files, fd, 0, 1);  in fget_task()
962 	return file;  in fget_task()
984 	struct file *file;  in __fget_light()  local
987 		file = __fcheck_files(files, fd);  in __fget_light()
988 		if (!file || unlikely(file->f_mode & mask))  in __fget_light()
990 		return (unsigned long)file;  in __fget_light()
992 		file = __fget(fd, mask, 1);  in __fget_light()
993 		if (!file)  in __fget_light()
995 		return FDPUT_FPUT | (unsigned long)file;  in __fget_light()
1012 	struct file *file = (struct file *)(v & ~3);  in __fdget_pos()  local
1014 	if (file && (file->f_mode & FMODE_ATOMIC_POS)) {  in __fdget_pos()
1015 		if (file_count(file) > 1) {  in __fdget_pos()
1017 			mutex_lock(&file->f_pos_lock);  in __fdget_pos()
1023 void __f_unlock_pos(struct file *f)  in __f_unlock_pos()
1060 	struct file *file, unsigned fd, unsigned flags)  in do_dup2()  argument
1063 	struct file *tofree;  in do_dup2()
1084 	get_file(file);  in do_dup2()
1085 	rcu_assign_pointer(fdt->fd[fd], file);  in do_dup2()
1103 int replace_fd(unsigned fd, struct file *file, unsigned flags)  in replace_fd()  argument
1108 	if (!file)  in replace_fd()
1118 	return do_dup2(files, file, fd, flags);  in replace_fd()
1142 int __receive_fd(int fd, struct file *file, int __user *ufd, unsigned int o_flags)  in __receive_fd()  argument
1147 	error = security_file_receive(file);  in __receive_fd()
1169 		fd_install(new_fd, get_file(file));  in __receive_fd()
1171 		error = replace_fd(new_fd, file, o_flags);  in __receive_fd()
1177 	__receive_sock(file);  in __receive_fd()
1184 	struct file *file;  in ksys_dup3()  local
1198 	file = fcheck(oldfd);  in ksys_dup3()
1199 	if (unlikely(!file))  in ksys_dup3()
1206 	return do_dup2(files, file, newfd, flags);  in ksys_dup3()
1238 	struct file *file = fget_raw(fildes);  in SYSCALL_DEFINE1()  local
1240 	if (file) {  in SYSCALL_DEFINE1()
1243 			fd_install(ret, file);  in SYSCALL_DEFINE1()
1245 			fput(file);  in SYSCALL_DEFINE1()
1250 int f_dupfd(unsigned int from, struct file *file, unsigned flags)  in f_dupfd()  argument
1257 		get_file(file);  in f_dupfd()
1258 		fd_install(err, file);  in f_dupfd()
1264 		int (*f)(const void *, struct file *, unsigned),  in iterate_fd()  argument
1273 		struct file *file;  in iterate_fd()  local
1274 		file = rcu_dereference_check_fdtable(files, fdt->fd[n]);  in iterate_fd()
1275 		if (!file)  in iterate_fd()
1277 		res = f(p, file, n);  in iterate_fd()