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| author |   Namhyung Kim <namhyung@kernel.org> | 2016-02-27 03:52:43 +0900 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-02-26 18:35:57 -0300 |
| commit | 84b6ee8ea36ff797afa13c297a86ed0144482bee (patch) | |
| tree | c8f898ba7c4ae42075dcb724addef55f5dfc5f0b /tools/perf/util/hist.c | |
| parent | perf report: Show message for percent limit on gtk (diff) | |
| download | wireguard-linux-84b6ee8ea36ff797afa13c297a86ed0144482bee.tar.xz wireguard-linux-84b6ee8ea36ff797afa13c297a86ed0144482bee.zip | |
perf hists: Fix comparing of dynamic entries
When hist_entry__cmp() and hist_entry__collapse() are called, they
should check if the dynamic entry is comparing matching hists only.
Otherwise it might access different hists resulting in incorrect output.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1456512767-1164-1-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/hist.c')
| -rw-r--r-- | tools/perf/util/hist.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c index 75dc41d2dca9..cc849d326211 100644 --- a/tools/perf/util/hist.c +++ b/tools/perf/util/hist.c @@ -1002,6 +1002,10 @@ hist_entry__cmp(struct hist_entry *left, struct hist_entry *right) int64_t cmp = 0; hists__for_each_sort_list(hists, fmt) { + if (perf_hpp__is_dynamic_entry(fmt) && + !perf_hpp__defined_dynamic_entry(fmt, hists)) + continue; + cmp = fmt->cmp(fmt, left, right); if (cmp) break; @@ -1018,6 +1022,10 @@ hist_entry__collapse(struct hist_entry *left, struct hist_entry *right) int64_t cmp = 0; hists__for_each_sort_list(hists, fmt) { + if (perf_hpp__is_dynamic_entry(fmt) && + !perf_hpp__defined_dynamic_entry(fmt, hists)) + continue; + cmp = fmt->collapse(fmt, left, right); if (cmp) break; |