Re: [PATCH 1/2] x86/mem-sharing: ensure consistent lock order in get_two_gfns()

[Tamas K Lengyel <tamas@xxxxxxxxxxxxx>]

On Tue, Jul 6, 2021 at 9:14 AM Jan Beulich <jbeulich@xxxxxxxx> wrote:
>
> On 06.07.2021 14:36, Tamas K Lengyel wrote:
> > On Tue, Jun 29, 2021 at 8:54 AM Jan Beulich <jbeulich@xxxxxxxx> wrote:
> >>
> >> While the comment validly says "Sort by domain, if same domain by gfn",
> >> the implementation also included equal domain IDs in the first part of
> >> the check, thus rending the second part entirely dead and leaving
> >> deadlock potential when there's only a single domain involved.
> >>
> >> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
> >
> > Acked-by: Tamas K Lengyel <tamas@xxxxxxxxxxxxx>
>
> Thanks. Do you think I should queue this for backporting (once it got
> applied)?

Sure, considering it's a bugfix.

Thanks,
Tamas