4449 static int sched_copy_attr(struct sched_attr __user *uattr, struct sched_attr *attr)  in sched_copy_attr()  argument
4454 	if (!access_ok(VERIFY_WRITE, uattr, SCHED_ATTR_SIZE_VER0))  in sched_copy_attr()
4460 	ret = get_user(size, &uattr->size);  in sched_copy_attr()
4486 		addr = (void __user *)uattr + sizeof(*attr);  in sched_copy_attr()
4487 		end  = (void __user *)uattr + size;  in sched_copy_attr()
4499 	ret = copy_from_user(attr, uattr, size);  in sched_copy_attr()
4512 	put_user(sizeof(*attr), &uattr->size);  in sched_copy_attr()
4550 SYSCALL_DEFINE3(sched_setattr, pid_t, pid, struct sched_attr __user *, uattr,  in SYSCALL_DEFINE3()  argument
4557 	if (!uattr || pid < 0 || flags)  in SYSCALL_DEFINE3()
4560 	retval = sched_copy_attr(uattr, &attr);  in SYSCALL_DEFINE3()
4648 static int sched_read_attr(struct sched_attr __user *uattr,  in sched_read_attr()  argument
4654 	if (!access_ok(VERIFY_WRITE, uattr, usize))  in sched_read_attr()
4677 	ret = copy_to_user(uattr, attr, attr->size);  in sched_read_attr()
4691 SYSCALL_DEFINE4(sched_getattr, pid_t, pid, struct sched_attr __user *, uattr,  in SYSCALL_DEFINE4()  argument
4700 	if (!uattr || pid < 0 || size > PAGE_SIZE ||  in SYSCALL_DEFINE4()
4726 	retval = sched_read_attr(uattr, &attr, size);  in SYSCALL_DEFINE4()