Re: [PATCH v2 20/34] xen: convert put_page() to put_user_page*()

[Juergen Gross]

On 05.08.19 00:49, john.hubbard@xxxxxxxxx wrote:
> From: John Hubbard <jhubbard@xxxxxxxxxx>
>
> For pages that were retained via get_user_pages*(), release those pages
> via the new put_user_page*() routines, instead of via put_page() or
> release_pages().
>
> This is part a tree-wide conversion, as described in commit fc1d8e7cca2d
> ("mm: introduce put_user_page*(), placeholder versions").
>
> This also handles pages[i] == NULL cases, thanks to an approach
> that is actually written by Juergen Gross.
>
> Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
> Signed-off-by: John Hubbard <jhubbard@xxxxxxxxxx>
>
> Cc: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
> Cc: xen-devel@xxxxxxxxxxxxxxxxxxxx
> ---
>
> Hi Juergen,
>
> Say, this is *exactly* what you proposed in your gup.patch, so
> I've speculatively added your Signed-off-by above, but need your
> approval before that's final. Let me know please...

Yes, that's fine with me.


Juergen