linux-kernel - [PATCH 0/1] Perf: fix overwritten of free running PEBSv3 timestamp

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Message-Id: <1455143882-3899-1-git-send-email-ztong@vt.edu>
Date:	Wed, 10 Feb 2016 17:38:01 -0500
From:	Tong Zhang <ztong@...edu>
To:	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>
Cc:	LKML <linux-kernel@...r.kernel.org>, Tong Zhang <ztong@...edu>
Subject: [PATCH 0/1] Perf: fix overwritten of free running PEBSv3 timestamp

Hi,
  commit a7b58d211ba18c9175b139e18b68c86a6bcc3c3f introduced
  feature of timestamp on free running PEBSv3, however,
  the timestamp is later overwritten, which makes the effort in vain.

  This patch prevent overwritten by detecting whether
  a timestamp is provided.

Tong Zhang (1):
 x86: Perf, fix overwritten of free running PEBSv3 timestamp
 include/linux/perf_event.h  |  1 +
 kernel/events/core.c        | 45 +++++++++++++++++++++++++++++++++------------
 kernel/events/ring_buffer.c |  4 +++-
 3 files changed, 37 insertions(+), 13 deletions(-)

-- 
2.4.10