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perf evlist: Add helper to check if attr.exclude_kernel is set in all evsels

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The warning about kptr_restrict needs to be emitted only when it is set
and we ask for kernel space samples, so add a helper to help with that.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-fh7drty6yljei9gxxzer6eup@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2017-11-14 11:01:06 -03:00
parent d5c5e46aa7
commit 5b0d1cb406
2 changed files with 14 additions and 0 deletions
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12
tools/perf/util/evlist.c
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@ -1786,3 +1786,15 @@ void perf_evlist__toggle_bkw_mmap(struct perf_evlist *evlist,
state_err:
return;
}
bool perf_evlist__exclude_kernel(struct perf_evlist *evlist)
{
struct perf_evsel *evsel;
evlist__for_each_entry(evlist, evsel) {
if (!evsel->attr.exclude_kernel)
return false;
}
return true;
}

2
tools/perf/util/evlist.h
View file

@ -312,4 +312,6 @@ perf_evlist__find_evsel_by_str(struct perf_evlist *evlist, const char *str);
struct perf_evsel *perf_evlist__event2evsel(struct perf_evlist *evlist,
union perf_event *event);
bool perf_evlist__exclude_kernel(struct perf_evlist *evlist);
#endif /* __PERF_EVLIST_H */