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| author | Ian Rogers <irogers@google.com> | 2025-05-19 12:51:39 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2025-05-21 15:07:13 -0300 |
| commit | 3ee2255c4fc2b7d424d5f5c744364189b659f123 (patch) | |
| tree | 0d633ea28360a63d778d17c5fb1e51f503eb5c92 /tools/lib/perf/include | |
| parent | libperf threadmap: Don't segv for index 0 for the NULL 'struct perf_thread_ma... (diff) | |
| download | linux-3ee2255c4fc2b7d424d5f5c744364189b659f123.tar.gz linux-3ee2255c4fc2b7d424d5f5c744364189b659f123.zip | |
libperf threadmap: Add perf_thread_map__idx()
Allow computation of thread map index from a PID.
Note, with a 'struct perf_cpu_map' the sorted nature allows for a binary
search to compute the index which isn't currently possible with a
'struct perf_thread_map' as they aren't guaranteed sorted.
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Gautam Menghani <gautam@linux.ibm.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Howard Chu <howardchu95@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20250519195148.1708988-3-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/lib/perf/include')
| -rw-r--r-- | tools/lib/perf/include/perf/threadmap.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/lib/perf/include/perf/threadmap.h b/tools/lib/perf/include/perf/threadmap.h index 8b40e7777cea..44deb815b817 100644 --- a/tools/lib/perf/include/perf/threadmap.h +++ b/tools/lib/perf/include/perf/threadmap.h @@ -14,6 +14,7 @@ LIBPERF_API void perf_thread_map__set_pid(struct perf_thread_map *map, int idx, LIBPERF_API char *perf_thread_map__comm(struct perf_thread_map *map, int idx); LIBPERF_API int perf_thread_map__nr(struct perf_thread_map *threads); LIBPERF_API pid_t perf_thread_map__pid(struct perf_thread_map *map, int idx); +LIBPERF_API int perf_thread_map__idx(struct perf_thread_map *map, pid_t pid); LIBPERF_API struct perf_thread_map *perf_thread_map__get(struct perf_thread_map *map); LIBPERF_API void perf_thread_map__put(struct perf_thread_map *map); |