On Wed, Aug 30, 2017 at 04:59:57PM +0200, Christoph Hellwig wrote:
> for (prot = 0; prot < prot_length;) {
> sector_t len = min_t(sector_t, bufsize, prot_length - prot);
> - ssize_t ret = kernel_write(prot_fd, buf, len, pos + prot);
> + ssize_t ret = kernel_write(prot_fd, buf, len, &pos);
>
> if (ret != len) {
> pr_err("vfs_write to prot file failed: %zd\n", ret);
> return ret < 0 ? ret : -ENODEV;
> }
> - prot += ret;
> }
And that loop will terminate because of...? IOW, the same bug class as in
the kernel_read() patch.
