Re: [PATCH] x86/resctrl: Fix event counts regression in reused RMIDs

[Peter Newman]

Hi Fenghua,

On Wed, Dec 7, 2022 at 8:26 PM Yu, Fenghua <fenghua.yu@xxxxxxxxx> wrote:
> > Fixes: 1d81d15db39c ("x86/resctrl: Move mbm_overflow_count() into
> > resctrl_arch_rmid_read()")
>
> Are you sure the patch fixes 1d81d15db39c? This commit is just a refactoring patch and doesn't change resctrl_arch_reset_rmid().

Yes, the breaking change was actually in __mon_event_count(). That
patch removes the initialization of mbm_state::prev_msr and switches
to using arch_mbm_state::prev_msr.

-Peter