diff options
| author | Jiri Olsa <[email protected]> | 2020-01-10 16:15:37 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <[email protected]> | 2020-01-14 12:02:19 -0300 |
| commit | cb71f7d43ece3d5a4f400f510c61b2ec7c9ce9a1 (patch) | |
| tree | c634b8ca75de9215205c4638fa5e1093fd1c5018 | |
| parent | c3314a74f86dc00827e0945c8e5039fc3aebaa3c (diff) | |
libperf: Setup initial evlist::all_cpus value
Jann Horn reported crash in perf ftrace because evlist::all_cpus isn't
initialized if there's evlist without events, which is the case for perf
ftrace.
Adding initial initialization of evlist::all_cpus from given cpus,
regardless of events in the evlist.
Fixes: 7736627b865d ("perf stat: Use affinity for closing file descriptors")
Reported-by: Jann Horn <[email protected]>
Signed-off-by: Jiri Olsa <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Michael Petlan <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
| -rw-r--r-- | tools/lib/perf/evlist.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/lib/perf/evlist.c b/tools/lib/perf/evlist.c index ae9e65aa2491..5b9f2ca50591 100644 --- a/tools/lib/perf/evlist.c +++ b/tools/lib/perf/evlist.c @@ -164,6 +164,9 @@ void perf_evlist__set_maps(struct perf_evlist *evlist, evlist->threads = perf_thread_map__get(threads); } + if (!evlist->all_cpus && cpus) + evlist->all_cpus = perf_cpu_map__get(cpus); + perf_evlist__propagate_maps(evlist); } |