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authorMasami Hiramatsu <masami.hiramatsu.pt@hitachi.com>2015-12-09 05:11:31 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2015-12-09 19:42:00 +0300
commitd91130e90a005876b488b6d52b743149d95b4a59 (patch)
tree2e4cb1485ec39784192e0dd74295007358268e1c /tools/perf/util/map.c
parent17577decb2ddae28f5a449ddb79cf0ed3e2312c5 (diff)
downloadlinux-d91130e90a005876b488b6d52b743149d95b4a59.tar.xz
perf tools: Fix maps__fixup_overlappings to put used maps
Since the __map_groups__insert got the given map, we don't need to keep it. So put the maps. Refcnt debugger shows that map_groups__fixup_overlappings() got a map twice but the group released it just once. This pattern usually indicates the leak happens in caller site. ---- ==== [0] ==== Unreclaimed map@0x39d3ae0 Refcount +1 => 1 at ./perf(map_groups__fixup_overlappings+0x335) [0x4c1865] ./perf(thread__insert_map+0x30) [0x4c8e00] ./perf(machine__process_mmap2_event+0x106) [0x4bd876] ./perf() [0x4c378e] ./perf() [0x4c4393] ./perf(perf_session__process_events+0x38a) [0x4c654a] ./perf(cmd_record+0xe24) [0x42fc94] ./perf() [0x47b745] ./perf(main+0x617) [0x422547] /lib64/libc.so.6(__libc_start_main+0xf5) [0x7f2eca2deaf5] ./perf() [0x4226bd] Refcount +1 => 2 at ./perf(map_groups__fixup_overlappings+0x3c5) [0x4c18f5] ./perf(thread__insert_map+0x30) [0x4c8e00] ./perf(machine__process_mmap2_event+0x106) [0x4bd876] ./perf() [0x4c378e] ./perf() [0x4c4393] ./perf(perf_session__process_events+0x38a) [0x4c654a] ./perf(cmd_record+0xe24) [0x42fc94] ./perf() [0x47b745] ./perf(main+0x617) [0x422547] /lib64/libc.so.6(__libc_start_main+0xf5) [0x7f2eca2deaf5] ./perf() [0x4226bd] Refcount -1 => 1 at ./perf(map_groups__exit+0x92) [0x4c0962] ./perf(map_groups__put+0x60) [0x4c0bc0] ./perf(thread__put+0x90) [0x4c8a40] ./perf(machine__delete_threads+0x7e) [0x4bad9e] ./perf(perf_session__delete+0x4f) [0x4c499f] ./perf(cmd_record+0xb6d) [0x42f9dd] ./perf() [0x47b745] ./perf(main+0x617) [0x422547] /lib64/libc.so.6(__libc_start_main+0xf5) [0x7f2eca2deaf5] ./perf() [0x4226bd] ---- Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20151209021131.10245.41485.stgit@localhost.localdomain Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/map.c')
-rw-r--r--tools/perf/util/map.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index 7b1c720976fc..171b6d10a04b 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -691,6 +691,7 @@ static int maps__fixup_overlappings(struct maps *maps, struct map *map, FILE *fp
__map_groups__insert(pos->groups, before);
if (verbose >= 2)
map__fprintf(before, fp);
+ map__put(before);
}
if (map->end < pos->end) {
@@ -705,6 +706,7 @@ static int maps__fixup_overlappings(struct maps *maps, struct map *map, FILE *fp
__map_groups__insert(pos->groups, after);
if (verbose >= 2)
map__fprintf(after, fp);
+ map__put(after);
}
put_map:
map__put(pos);