On Sat, Jan 09, 2021 at 05:18:34PM -0500, Willem de Bruijn wrote:
> From: Willem de Bruijn
>
> esp(6)_output_head uses skb_page_frag_refill to allocate a buffer for
> the esp trailer.
>
> It accesses the page with kmap_atomic to handle highmem. But
> skb_page_frag_refill can return compound page
From: Willem de Bruijn
esp(6)_output_head uses skb_page_frag_refill to allocate a buffer for
the esp trailer.
It accesses the page with kmap_atomic to handle highmem. But
skb_page_frag_refill can return compound pages, of which
kmap_atomic only maps the first underlying page.
skb_page_frag_refi
