Re: [PATCH v1 05/15] io_uring: mark pages in ifq region with zctap information.

Christoph Hellwig
2022-11-16T08:14:30Z

On Mon, Nov 07, 2022 at 09:05:11PM -0800, Jonathan Lemon wrote:
> The network stack passes up pages, which must be mapped to
> zctap device buffers in order to get the reference count and
> other items. Mark the page as private, and use the page_private
> field to record the lookup and ownership information.

Who coordinate ownership of page_private here? What other parts
of the kernel could touch these pages?