1306 		  loff_t *off_out, size_t len, unsigned int flags)  in do_splice()  argument
1321 		if (off_in || off_out)  in do_splice()
1335 		if (off_out) {  in do_splice()
1338 			offset = *off_out;  in do_splice()
1357 		if (!off_out)  in do_splice()
1360 			*off_out = offset;  in do_splice()
1362 		if (off_out)  in do_splice()
1403 			   struct file *out, loff_t __user *off_out,  in __do_splice()  argument
1420 		if (off_out)  in __do_splice()
1425 	if (off_out) {  in __do_splice()
1426 		if (copy_from_user(&offset, off_out, sizeof(loff_t)))  in __do_splice()
1440 	if (__off_out && copy_to_user(off_out, __off_out, sizeof(loff_t)))  in __do_splice()
1635 		int, fd_out, loff_t __user *, off_out,  in SYSCALL_DEFINE6()  argument
1652 			error = __do_splice(fd_file(in), off_in, fd_file(out), off_out,  in SYSCALL_DEFINE6()