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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2011-04-14 18:20:14 +0400 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2011-04-15 19:52:28 +0400 |
| commit | 5d2cd90922c778908bd0cd669e572a5b5eafd737 (patch) | |
| tree | 0467726f17165b6e2461521e9cca4f54c959d6d6 /tools/perf/builtin-stat.c | |
| parent | db9a9cbc8142eed008e242e389938689c6feb1ba (diff) | |
| download | linux-5d2cd90922c778908bd0cd669e572a5b5eafd737.tar.xz | |
perf evsel: Fix use of inherit
perf stat doesn't mmap and its perfectly fine for it to use task-bound
counters with inheritance.
So set the attr.inherit on the caller and leave the syscall itself to
validate it.
When the mmap fails perf_evlist__mmap will just emit a warning if this
is the failure reason.
Reported-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
Link: http://lkml.kernel.org/r/20110414170121.GC3229@ghostprotocols.net
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-stat.c')
| -rw-r--r-- | tools/perf/builtin-stat.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index e2109f9b43eb..03f0e45f1479 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -167,16 +167,17 @@ static int create_perf_stat_counter(struct perf_evsel *evsel) attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED | PERF_FORMAT_TOTAL_TIME_RUNNING; + attr->inherit = !no_inherit; + if (system_wide) - return perf_evsel__open_per_cpu(evsel, evsel_list->cpus, false, false); + return perf_evsel__open_per_cpu(evsel, evsel_list->cpus, false); - attr->inherit = !no_inherit; if (target_pid == -1 && target_tid == -1) { attr->disabled = 1; attr->enable_on_exec = 1; } - return perf_evsel__open_per_thread(evsel, evsel_list->threads, false, false); + return perf_evsel__open_per_thread(evsel, evsel_list->threads, false); } /* |