Re: [PATCH v3 0/8] Clean up libperf cpumap's empty function

[Namhyung Kim <namhyung@kernel.org>]

On Wed, Feb 14, 2024 at 2:03 PM Ian Rogers <irogers@google.com> wrote:
>
> On Fri, Feb 2, 2024 at 3:41 PM Ian Rogers <irogers@google.com> wrote:
> >
> > Rename and clean up the use of libperf CPU map functions particularly
> > focussing on perf_cpu_map__empty that may return true for maps
> > containing CPUs but also with an "any CPU"/dummy value.
> >
> > perf_cpu_map__nr is also troubling in that iterating an empty CPU map
> > will yield the "any CPU"/dummy value. Reduce the appearance of some
> > calls to this by using the perf_cpu_map__for_each_cpu macro.
> >
> > v3: Address handling of "any" is arm-spe/cs-etm patch.
> > v2: 6 patches were merged by Arnaldo. New patch added ensure empty
> >     maps are allocated as NULL (suggested by James Clark). Hopefully a
> >     fix to "perf arm-spe/cs-etm: Directly iterate CPU maps".
> >
> > Ian Rogers (8):
> >   libperf cpumap: Add any, empty and min helpers
> >   libperf cpumap: Ensure empty cpumap is NULL from alloc
> >   perf arm-spe/cs-etm: Directly iterate CPU maps
> >   perf intel-pt/intel-bts: Switch perf_cpu_map__has_any_cpu_or_is_empty
> >     use
> >   perf cpumap: Clean up use of perf_cpu_map__has_any_cpu_or_is_empty
> >   perf arm64 header: Remove unnecessary CPU map get and put
> >   perf stat: Remove duplicate cpus_map_matched function
> >   perf cpumap: Use perf_cpu_map__for_each_cpu when possible
>
> Ping. Thanks,
> Ian

Adrian and James, are you ok with this now?

Thanks,
Namhyung