[RFC 0/2] report perf sampling failing due to PMU lacking overflow intr support

From	Vineet Gupta <Vineet.Gupta1@synopsys.com>
Newsgroups	linux.kernel
Subject	[RFC 0/2] report perf sampling failing due to PMU lacking overflow intr support
Date	2016-05-09 11:40 +0200
Message-ID	<rwPPr-2FZ-5@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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Hi,

A couple of minor patches to print better PMU lacking overflow intr support
such as in ARC700 cores.

This is an ABI change so might be controversial hence RFC.

Despite triviality, I've seperated the change into 2 pacthes - for different maintainers
and also kept userspace change first to keep it bisectable.

Comments welcome !

Thx,
-Vineet

Vineet Gupta (2):
  tools/perf: Handle EOPNOTSUPP for sampling events
  perf/core: change errno for sampling event not supported in hardware

 kernel/events/core.c    | 2 +-
 tools/perf/util/evsel.c | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

-- 
2.5.0

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[RFC 0/2] report perf sampling failing due to PMU lacking overflow intr support Vineet Gupta <Vineet.Gupta1@synopsys.com> - 2016-05-09 11:40 +0200
  [RFC 2/2] perf/core: change errno for sampling event not supported in hardware Vineet Gupta <Vineet.Gupta1@synopsys.com> - 2016-05-09 11:40 +0200
    Re: [RFC 2/2] perf/core: change errno for sampling event not supported  in hardware Vince Weaver <vincent.weaver@maine.edu> - 2016-05-09 16:00 +0200
      Re: [RFC 2/2] perf/core: change errno for sampling event not  supported in hardware Vineet Gupta <vgupta@synopsys.com> - 2016-05-09 19:30 +0200
        Re: [RFC 2/2] perf/core: change errno for sampling event not supported  in hardware Vince Weaver <vincent.weaver@maine.edu> - 2016-05-11 05:40 +0200
        Re: [RFC 2/2] perf/core: change errno for sampling event not  supported in hardware Peter Zijlstra <peterz@infradead.org> - 2016-05-11 21:40 +0200
          Re: [RFC 2/2] perf/core: change errno for sampling event not  supported in hardware Vineet Gupta <Vineet.Gupta1@synopsys.com> - 2016-05-12 08:30 +0200
            Re: [RFC 2/2] perf/core: change errno for sampling event not  supported in hardware Peter Zijlstra <peterz@infradead.org> - 2016-05-12 08:50 +0200
              Re: [RFC 2/2] perf/core: change errno for sampling event not  supported in hardware Vineet Gupta <Vineet.Gupta1@synopsys.com> - 2016-05-12 09:00 +0200
                Re: [RFC 2/2] perf/core: change errno for sampling event not  supported in hardware Peter Zijlstra <peterz@infradead.org> - 2016-05-12 09:30 +0200

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