1024 	       loff_t *off_out, size_t len, unsigned int flags)  in do_splice()  argument
1039 		if (off_in || off_out)  in do_splice()
1055 		if (off_out) {  in do_splice()
1058 			offset = *off_out;  in do_splice()
1077 		if (!off_out)  in do_splice()
1080 			*off_out = offset;  in do_splice()
1086 		if (off_out)  in do_splice()
1112 			struct file *out, loff_t __user *off_out,  in __do_splice()  argument
1125 	if (opipe && off_out)  in __do_splice()
1128 	if (off_out) {  in __do_splice()
1129 		if (copy_from_user(&offset, off_out, sizeof(loff_t)))  in __do_splice()
1143 	if (__off_out && copy_to_user(off_out, __off_out, sizeof(loff_t)))  in __do_splice()
1329 		int, fd_out, loff_t __user *, off_out,  in SYSCALL_DEFINE6()  argument
1346 			error = __do_splice(in.file, off_in, out.file, off_out,  in SYSCALL_DEFINE6()