Re: [PATCH v2 1/2] perf: get rid of pointless virPerfGetEventAttr() method

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On Wed, Apr 12, 2017 at 03:26:36PM +0200, Ján Tomko wrote:
> On Wed, Apr 12, 2017 at 12:27:11PM +0100, Daniel P. Berrange wrote:
> > The virPerfGetEventAttr method contains a totally pointless
> > loop. Remove it, verify the array size statically, and then
> > just use an array index to access the perf event.
> > 
> > Signed-off-by: Daniel P. Berrange <berrange@xxxxxxxxxx>
> > ---
> > src/util/virperf.c | 143 +++++++++++++++++++++++++----------------------------
> > 1 file changed, 66 insertions(+), 77 deletions(-)
> > 
> > diff --git a/src/util/virperf.c b/src/util/virperf.c
> > index e39cebb..7366efc 100644
> > --- a/src/util/virperf.c
> > +++ b/src/util/virperf.c
> 
> [...]
> 
> > +    [VIR_PERF_EVENT_STALLED_CYCLES_BACKEND] = {
> > +        .attrType = PERF_TYPE_HARDWARE,
> > +        .attrConfig = PERF_COUNT_HW_STALLED_CYCLES_BACKEND
> > +    },
> > +    [VIR_PERF_EVENT_REF_CPU_CYCLES] = {
> 
> Up to VIR_PERF_EVENT_REF_CPU_CYCLES, the initialization is indexed
> by the enum value...
> 
> > # ifdef PERF_COUNT_HW_REF_CPU_CYCLES
> > -     .attrType = PERF_TYPE_HARDWARE,
> > -     .attrConfig = PERF_COUNT_HW_REF_CPU_CYCLES
> > +        .attrType = PERF_TYPE_HARDWARE,
> > +        .attrConfig = PERF_COUNT_HW_REF_CPU_CYCLES
> > # else
> > -     .attrType = 0,
> > -     .attrConfig = 0,
> > +        .attrType = 0,
> > +        .attrConfig = 0,
> > # endif
> >     },
> > -    {.type = VIR_PERF_EVENT_CPU_CLOCK,
> > -     .attrType = PERF_TYPE_SOFTWARE,
> > +    {.attrType = PERF_TYPE_SOFTWARE,
> >      .attrConfig = PERF_COUNT_SW_CPU_CLOCK},
> 
> ... but the rest does not.
> 
> ACK with the inconsitency fixed.

Opps, yes, my mistake when resolving the conflict


Regards,
Daniel
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