kernel/tools/perf/util/sideband_evlist.c, branch linux-6.2.y

perf evlist: Rename cpus to user_requested_cpus

2022-04-01T19:19:35Z

evlist contains cpus and all_cpus. all_cpus is the union of the cpu maps of all evsels. For non-task targets, cpus is set to be cpus requested from the command line, defaulting to all online cpus if no cpus are specified. For an uncore event, all_cpus may be just CPU 0 or every online CPU. This causes all_cpus to have fewer values than the cpus variable which is confusing given the 'all' in the name. To try to make the behavior clearer, rename cpus to user_requested_cpus and add comments on the two struct variables. Signed-off-by: Ian Rogers Cc: Adrian Hunter Cc: Alexander Antonov Cc: Alexander Shishkin Cc: Alexei Starovoitov Cc: Alexey Bayduraev Cc: Andi Kleen Cc: Andrii Nakryiko Cc: Daniel Borkmann Cc: German Gomez Cc: James Clark Cc: Jiri Olsa Cc: John Fastabend Cc: John Garry Cc: KP Singh Cc: Kajol Jain Cc: Leo Yan Cc: Mark Rutland Cc: Martin KaFai Lau Cc: Mathieu Poirier Cc: Mike Leach Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Riccardo Mancini Cc: Song Liu Cc: Stephane Eranian Cc: Suzuki Poulouse Cc: Will Deacon Cc: Yonghong Song Cc: bpf@vger.kernel.org Cc: coresight@lists.linaro.org Cc: linux-arm-kernel@lists.infradead.org Cc: netdev@vger.kernel.org Link: http://lore.kernel.org/lkml/20220328232648.2127340-3-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo

perf evlist: Use the right prefix for 'struct evlist' create maps methods

2020-11-30T17:56:52Z

perf_evlist__ is for 'struct perf_evlist' methods, in tools/lib/perf/, go on completing this split. Cc: Adrian Hunter Cc: Ian Rogers Cc: Jiri Olsa Cc: Namhyung Kim Signed-off-by: Arnaldo Carvalho de Melo

perf evlist: Use the right prefix for 'struct evlist' id_pos methods

2020-11-30T17:44:40Z

perf evlist: Use the right prefix for 'struct evlist' sample id lookup methods

2020-11-30T17:17:57Z

perf evlist: Use the right prefix for 'struct evlist' sideband thread methods

2020-11-30T12:40:10Z

perf evsel: Rename perf_evselnew() to evselnew()

2020-05-28T13:03:24Z

As these are 'struct evsel' methods, not part of tools/lib/perf/, aka libperf, to whom the perf_ prefix belongs. Cc: Adrian Hunter Cc: Jiri Olsa Cc: Namhyung Kim Signed-off-by: Arnaldo Carvalho de Melo

perf evsel: Rename perf_evsel__set_sample_() to evsel__set_sample_()

2020-05-05T19:35:30Z

As they are not 'struct evsel' methods, not part of tools/lib/perf/, aka libperf, to whom the perf_ prefix belongs. Cc: Adrian Hunter Cc: Jiri Olsa Cc: Namhyung Kim Signed-off-by: Arnaldo Carvalho de Melo

perf evsel: Rename 'struct perf_evsel__sb_cb_t' to 'struct evsel__sb_cb_t'

2020-05-05T19:35:30Z

As the "perf_" prefix should be restricted to functions and types in tools/lib/perf/, aka libperf, this way we reduce a bit the confusion for types only in libperf or the ones in the more contained tools/perf/ project. Cc: Adrian Hunter Cc: Jiri Olsa Cc: Namhyung Kim Cc: Song Liu Signed-off-by: Arnaldo Carvalho de Melo

perf evlist: Allow reusing the side band thread for more purposes

2020-05-05T19:35:29Z

I.e. so far we had just one event in that side band thread, a dummy one with attr.bpf_event set, so that 'perf record' can go ahead and ask the kernel for further information about BPF programs being loaded. Allow for more than one event to be there, so that we can use it as well for the upcoming --switch-output-event feature. Acked-by: Jiri Olsa Cc: Adrian Hunter Cc: Namhyung Kim Cc: Song Liu Link: http://lore.kernel.org/lkml/20200429131106.27974-6-acme@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf evlist: Move the sideband thread routines to separate object