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| author | Namhyung Kim <namhyung@kernel.org> | 2022-10-28 11:01:26 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-10-31 11:07:34 -0300 |
| commit | 0a277b6226703812ba90543d5bb49476e03f816e (patch) | |
| tree | 074dc408b8dda7e9786a97b9536e3a9ddb92c44c /tools/perf/util/bpf_lock_contention.c | |
| parent | 005ef2b41b119caf65ac611109ce7ae68d857b46 (diff) | |
| download | linux-0a277b6226703812ba90543d5bb49476e03f816e.tar.gz linux-0a277b6226703812ba90543d5bb49476e03f816e.tar.bz2 linux-0a277b6226703812ba90543d5bb49476e03f816e.zip | |
perf lock contention: Check --max-stack option
The --max-stack option is used to allocate the BPF stack map and stack
trace array in the userspace. Check the value properly before using.
Practically it cannot be greater than the sysctl_perf_event_max_stack.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20221028180128.3311491-3-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/bpf_lock_contention.c')
0 files changed, 0 insertions, 0 deletions