On 07/11/2013 07:34 PM, Colin Cross wrote:
> + pages_pinned = get_user_pages(current, mm, page_start_vaddr,
> + 1, 0, 0, &page, NULL);
> + if (pages_pinned < 1) {
> + seq_puts(m, "<fault>]");
> + return;
> + }
> +
> + kaddr = (const char *)kmap(page);
> + len = min(max_len, PAGE_SIZE - page_offset);
> + write_len = strnlen(kaddr + page_offset, len);
> + seq_write(m, kaddr + page_offset, write_len);
> + kunmap(page);
> + put_page(page);
This looks a bit like access_process_vm()? Can you perhaps use it here?
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