Re: [Xen-devel] [PATCH v5 2/4] x86/mem_sharing: copy a page_lock version to be internal to memshr

[Tamas K Lengyel <tamas@xxxxxxxxxxxxx>]

On Thu, May 16, 2019 at 11:38 PM Tamas K Lengyel <tamas@xxxxxxxxxxxxx> wrote:
>
> Patch cf4b30dca0a "Add debug code to detect illegal page_lock and 
> put_page_type
> ordering" added extra sanity checking to page_lock/page_unlock for debug 
> builds
> with the assumption that no hypervisor path ever locks two pages at once.
>
> This assumption doesn't hold during memory sharing so we copy a version of
> page_lock/unlock to be used exclusively in the memory sharing subsystem
> without the sanity checks.
>
> Signed-off-by: Tamas K Lengyel <tamas@xxxxxxxxxxxxx>

Patch ping. Current tally:

Acked-by: Jan Beulich <jbeulich@xxxxxxxx>

Thanks,
Tamas

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