Re: [PATCH V4] x86/Hyper-V: Balloon up according to request page number

[Sasha Levin]

On Tue, Jan 21, 2020 at 04:36:26AM +0000, Michael Kelley wrote:
> From: Tianyu Lan <Tianyu.Lan@xxxxxxxxxxxxx> Sent: Monday, January 20, 2020 7:49 PM
> > Current code has assumption that balloon request memory size aligns
> > with 2MB. But actually Hyper-V doesn't guarantee such alignment. When
> > balloon driver receives non-aligned balloon request, it produces warning
> > and balloon up more memory than requested in order to keep 2MB alignment.
> > Remove the warning and balloon up memory according to actual requested
> > memory size.
> >
> > Fixes: f6712238471a ("hv: hv_balloon: avoid memory leak on alloc_error of 2MB memory
> > block")
> > Cc: stable@xxxxxxxxxxxxxxx
> > Reviewed-by: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>
> > Signed-off-by: Tianyu Lan <Tianyu.Lan@xxxxxxxxxxxxx>
>
> Reviewed-by: Michael Kelley <mikelley@xxxxxxxxxxxxx>

Queued up, thanks!

--
Thanks,
Sasha