49 	kvfree(fdt->fd);  in __free_fdtable()
71 	memcpy(nfdt->fd, ofdt->fd, cpy);  in copy_fdtable()
72 	memset((char *)(nfdt->fd) + cpy, 0, set);  in copy_fdtable()
115 	fdt->fd = data;  in alloc_fdtable()
128 	kvfree(fdt->fd);  in alloc_fdtable()
205 static inline void __set_close_on_exec(int fd, struct fdtable *fdt)  in __set_close_on_exec()  argument
207 	__set_bit(fd, fdt->close_on_exec);  in __set_close_on_exec()
210 static inline void __clear_close_on_exec(int fd, struct fdtable *fdt)  in __clear_close_on_exec()  argument
212 	__clear_bit(fd, fdt->close_on_exec);  in __clear_close_on_exec()
215 static inline void __set_open_fd(int fd, struct fdtable *fdt)  in __set_open_fd()  argument
217 	__set_bit(fd, fdt->open_fds);  in __set_open_fd()
220 static inline void __clear_open_fd(int fd, struct fdtable *fdt)  in __clear_open_fd()  argument
222 	__clear_bit(fd, fdt->open_fds);  in __clear_open_fd()
264 	new_fdt->fd = &newf->fd_array[0];  in dup_fd()
302 	old_fds = old_fdt->fd;  in dup_fd()
303 	new_fds = new_fdt->fd;  in dup_fd()
367 				struct file * file = xchg(&fdt->fd[i], NULL);  in close_files()
435 		.fd		= &init_files.fd_array[0],
448 	unsigned int fd;  in __alloc_fd()  local
455 	fd = start;  in __alloc_fd()
456 	if (fd < files->next_fd)  in __alloc_fd()
457 		fd = files->next_fd;  in __alloc_fd()
459 	if (fd < fdt->max_fds)  in __alloc_fd()
460 		fd = find_next_zero_bit(fdt->open_fds, fdt->max_fds, fd);  in __alloc_fd()
467 	if (fd >= end)  in __alloc_fd()
470 	error = expand_files(files, fd);  in __alloc_fd()
482 		files->next_fd = fd + 1;  in __alloc_fd()
484 	__set_open_fd(fd, fdt);  in __alloc_fd()
486 		__set_close_on_exec(fd, fdt);  in __alloc_fd()
488 		__clear_close_on_exec(fd, fdt);  in __alloc_fd()
489 	error = fd;  in __alloc_fd()
492 	if (rcu_access_pointer(fdt->fd[fd]) != NULL) {  in __alloc_fd()
493 		printk(KERN_WARNING "alloc_fd: slot %d not NULL!\n", fd);  in __alloc_fd()
494 		rcu_assign_pointer(fdt->fd[fd], NULL);  in __alloc_fd()
514 static void __put_unused_fd(struct files_struct *files, unsigned int fd)  in __put_unused_fd()  argument
517 	__clear_open_fd(fd, fdt);  in __put_unused_fd()
518 	if (fd < files->next_fd)  in __put_unused_fd()
519 		files->next_fd = fd;  in __put_unused_fd()
522 void put_unused_fd(unsigned int fd)  in put_unused_fd()  argument
526 	__put_unused_fd(files, fd);  in put_unused_fd()
552 void __fd_install(struct files_struct *files, unsigned int fd,  in __fd_install()  argument
558 	BUG_ON(fdt->fd[fd] != NULL);  in __fd_install()
559 	rcu_assign_pointer(fdt->fd[fd], file);  in __fd_install()
563 void fd_install(unsigned int fd, struct file *file)  in fd_install()  argument
565 	__fd_install(current->files, fd, file);  in fd_install()
573 int __close_fd(struct files_struct *files, unsigned fd)  in __close_fd()  argument
580 	if (fd >= fdt->max_fds)  in __close_fd()
582 	file = fdt->fd[fd];  in __close_fd()
585 	rcu_assign_pointer(fdt->fd[fd], NULL);  in __close_fd()
586 	__clear_close_on_exec(fd, fdt);  in __close_fd()
587 	__put_unused_fd(files, fd);  in __close_fd()
605 		unsigned fd = i * BITS_PER_LONG;  in do_close_on_exec()  local
607 		if (fd >= fdt->max_fds)  in do_close_on_exec()
613 		for ( ; set ; fd++, set >>= 1) {  in do_close_on_exec()
617 			file = fdt->fd[fd];  in do_close_on_exec()
620 			rcu_assign_pointer(fdt->fd[fd], NULL);  in do_close_on_exec()
621 			__put_unused_fd(files, fd);  in do_close_on_exec()
632 static struct file *__fget(unsigned int fd, fmode_t mask)  in __fget()  argument
638 	file = fcheck_files(files, fd);  in __fget()
649 struct file *fget(unsigned int fd)  in fget()  argument
651 	return __fget(fd, FMODE_PATH);  in fget()
655 struct file *fget_raw(unsigned int fd)  in fget_raw()  argument
657 	return __fget(fd, 0);  in fget_raw()
677 static unsigned long __fget_light(unsigned int fd, fmode_t mask)  in __fget_light()  argument
683 		file = __fcheck_files(files, fd);  in __fget_light()
688 		file = __fget(fd, mask);  in __fget_light()
694 unsigned long __fdget(unsigned int fd)  in __fdget()  argument
696 	return __fget_light(fd, FMODE_PATH);  in __fdget()
700 unsigned long __fdget_raw(unsigned int fd)  in __fdget_raw()  argument
702 	return __fget_light(fd, 0);  in __fdget_raw()
705 unsigned long __fdget_pos(unsigned int fd)  in __fdget_pos()  argument
707 	unsigned long v = __fdget(fd);  in __fdget_pos()
725 void set_close_on_exec(unsigned int fd, int flag)  in set_close_on_exec()  argument
732 		__set_close_on_exec(fd, fdt);  in set_close_on_exec()
734 		__clear_close_on_exec(fd, fdt);  in set_close_on_exec()
738 bool get_close_on_exec(unsigned int fd)  in get_close_on_exec()  argument
745 	res = close_on_exec(fd, fdt);  in get_close_on_exec()
751 	struct file *file, unsigned fd, unsigned flags)  in do_dup2()  argument
772 	tofree = fdt->fd[fd];  in do_dup2()
773 	if (!tofree && fd_is_open(fd, fdt))  in do_dup2()
776 	rcu_assign_pointer(fdt->fd[fd], file);  in do_dup2()
777 	__set_open_fd(fd, fdt);  in do_dup2()
779 		__set_close_on_exec(fd, fdt);  in do_dup2()
781 		__clear_close_on_exec(fd, fdt);  in do_dup2()
787 	return fd;  in do_dup2()
794 int replace_fd(unsigned fd, struct file *file, unsigned flags)  in replace_fd()  argument
800 		return __close_fd(files, fd);  in replace_fd()
802 	if (fd >= rlimit(RLIMIT_NOFILE))  in replace_fd()
806 	err = expand_files(files, fd);  in replace_fd()
809 	return do_dup2(files, file, fd, flags);  in replace_fd()
904 		file = rcu_dereference_check_fdtable(files, fdt->fd[n]);  in iterate_fd()