Fix map_groups__clone to put cloned map after
inserting it to the map_groups.
Refcnt debugger shows:
----
==== [0] ====
Unreclaimed map: 0x2a27ee0
Refcount +1 => 1 at
./perf(map_groups__clone+0x8d) [0x4bb7ed]
./perf(thread__fork+0xbe) [0x4c1f9e]
./perf(machine__process_fork_event+0x216) [0x4b79a6]
./perf(perf_event__synthesize_threads+0x38b) [0x48135b]
./perf(cmd_top+0xdc6) [0x43cb76]
./perf() [0x477223]
./perf(main+0x617) [0x422077]
/lib64/libc.so.6(__libc_start_main+0xf0) [0x7ff806af8fe0]
./perf() [0x4221ed]
Refcount +1 => 2 at
./perf(map_groups__clone+0x128) [0x4bb888]
./perf(thread__fork+0xbe) [0x4c1f9e]
./perf(machine__process_fork_event+0x216) [0x4b79a6]
./perf(perf_event__synthesize_threads+0x38b) [0x48135b]
./perf(cmd_top+0xdc6) [0x43cb76]
./perf() [0x477223]
./perf(main+0x617) [0x422077]
/lib64/libc.so.6(__libc_start_main+0xf0) [0x7ff806af8fe0]
./perf() [0x4221ed]
Refcount -1 => 1 at
./perf(map_groups__exit+0x87) [0x4ba757]
./perf(map_groups__put+0x68) [0x4ba9a8]
./perf(thread__put+0x8b) [0x4c1aeb]
./perf(machine__delete_threads+0x81) [0x4b48f1]
./perf(perf_session__delete+0x4f) [0x4be63f]
./perf(cmd_top+0x1094) [0x43ce44]
./perf() [0x477223]
./perf(main+0x617) [0x422077]
/lib64/libc.so.6(__libc_start_main+0xf0) [0x7ff806af8fe0]
./perf() [0x4221ed]
----
This shows map_groups__clone get the map twice
and put it when map_groups__exit.
Signed-off-by: Masami Hiramatsu <masami.hiramatsu...@hitachi.com>
---
tools/perf/util/map.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index 7859216..03b7297 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -744,6 +744,7 @@ int map_groups__clone(struct map_groups *mg,
if (new == NULL)
goto out_unlock;
map_groups__insert(mg, new);
+ map__put(new);
}
err = 0;
--
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