AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

perf hist: Initialize hierarchy tree explicitly

Browse Source 
The hroot_in and hroot_out are roots of hierarchy trees of hist entries.

But when a hist entry is initialized by copying existing template entry,
it sometimes has non-empty tree and copies it incorrectly.  This is a
problem especially when an event group is used since it creates dummy
entries from already-processed entries in other event members.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20160913074552.13284-4-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim 2016-09-13 16:45:48 +09:00 committed by Arnaldo Carvalho de Melo
parent 9d97b8f512
commit d2580c7a5b
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
tools/perf/util/hist.c
View File

@ -417,6 +417,8 @@ static int hist_entry__init(struct hist_entry *he,
}
INIT_LIST_HEAD(&he->pairs.node);
thread__get(he->thread);
he->hroot_in = RB_ROOT;
he->hroot_out = RB_ROOT;
if (!symbol_conf.report_hierarchy)
he->leaf = true;