Hello Tony,
On Mon, Jan 22, 2024 at 09:37:31PM +0200, Tony Solomonik wrote:
> +int io_truncate_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
> +{
> + struct io_trunc *tr = io_kiocb_to_cmd(req, struct io_trunc);
> +
> + if (sqe->off || sqe->rw_flags || sqe->buf_index || sqe->splice_fd_in)
> + return -EINVAL;
> + if (unlikely(req->flags & REQ_F_FIXED_FILE))
> + return -EBADF;
> +
> + tr->pathname = u64_to_user_ptr(READ_ONCE(sqe->addr));
> + tr->len = READ_ONCE(sqe->len);
sqe->len is 32 bits. I _think_ loff_t is or could be 64-bits. Isn't it
possible to use a u64 here? Maybe sqe->off or sqe->addr?
