linux-kernel - Re: [PATCH 3/4] perf/x86/mbm: Fix mbm counting when RMIDs are reused

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Message-ID: <alpine.DEB.2.10.1604251448201.18257@vshiva-Udesk>
Date:	Mon, 25 Apr 2016 14:49:32 -0700 (PDT)
From:	Vikas Shivappa <vikas.shivappa@...el.com>
To:	Vikas Shivappa <vikas.shivappa@...el.com>
cc:	Peter Zijlstra <peterz@...radead.org>,
	Vikas Shivappa <vikas.shivappa@...ux.intel.com>,
	tony.luck@...el.com, "Shankar, Ravi V" <ravi.v.shankar@...el.com>,
	"Yu, Fenghua" <fenghua.yu@...el.com>, x86@...nel.org,
	linux-kernel@...r.kernel.org, hpa@...or.com, tglx@...utronix.de,
	mingo@...nel.org, h.peter.anvin@...el.com
Subject: Re: [PATCH 3/4] perf/x86/mbm: Fix mbm counting when RMIDs are
 reused



>
> 'per event' rc_count = read_sample(event->rmid) - per event start count;

'per event' rc_count += read_sample(event->rmid) - per event start count;