Sending some urgent fixes for the MBM(memory b/w monitoring) which is upstreamed from 4.6-rc1. Patches apply on 4.6-rc1.
CQM and MBM counters reported some incorrect counts for different scenarios like interval mode or for multiple perf instances. The 1/4,2/4,3/4 address these issues. The last patch changes the cqm driver to only support task events as support for cgroup event was broken - Just reporting a 'not-supported' error to perf instead of pretending to support and send incorrect counts. [PATCH 1/4] perf/x86/cqm,mbm: Store cqm,mbm count for all events when [PATCH 2/4] perf/x86/mbm: Store bytes counted for mbm during recycle [PATCH 3/4] perf/x86/mbm: Fix mbm counting when RMIDs are reused [PATCH 4/4] perf/x86/cqm: Support cqm/mbm only for perf events