size_t copy_from_iter_nocache(void *addr, size_t bytes, struct iov_iter *i)
{
	char *to = addr;
	if (unlikely(i->type & ITER_PIPE)) {
		WARN_ON(1);
		return 0;
	}
	iterate_and_advance(i, bytes, v,
		__copy_from_user_nocache((to += v.iov_len) - v.iov_len,
					 v.iov_base, v.iov_len),
		memcpy_from_page((to += v.bv_len) - v.bv_len, v.bv_page,
				 v.bv_offset, v.bv_len),
		memcpy((to += v.iov_len) - v.iov_len, v.iov_base, v.iov_len)
	)

	return bytes;
}

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