Re: [PATCH v2 0/5] x86,fs/resctrl: Cleanups in preparation for multiple controls support

[Luck, Tony]

> The only intended functional change is a reworded informational message
> printed if an Intel system with non-linear MBA delay values is encountered.

I set r->membw.delay_linear = false; and booted to check. Console
message during boot now includes:

[    7.372455] resctrl: Non-linear MBA delay values not supported

Attempting to mount resctrl with the mba_MBps option fails (as expected)
with:

mount: /sys/fs/resctrl: fsconfig system call failed: resctrl: mba_MBps requires MBM (mbm_event mode not supported) and linear scale MBA at L3 scope.

I've been using the older versions of these patches from

git://git.kernel.org/pub/scm/linux/kernel/git/reinette/linux.git resctrl/controls_rfc_v2.4

and haven't seen any issues.


Series:

Reviewed-by: Tony Luck <tony.luck@xxxxxxxxx>

-Tony