diff options
| author | Changbin Du <changbin.du@gmail.com> | 2019-03-16 16:05:51 +0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-03-19 16:52:05 -0300 |
| commit | da3a53a7390a89391bd63bead0c2e9af4c5ef3d6 (patch) | |
| tree | 10baf6f7e0f806a9436f4877c0e1f11e4c727ec5 /tools | |
| parent | b49265e04410b97b31a5ee66ef6782c1b2d6cd2c (diff) | |
perf maps: Purge all maps from the 'names' tree
Add function __maps__purge_names() to purge all maps from the names
tree. We need to cleanup the names tree in maps__exit().
Detected with gcc's ASan.
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Reviewed-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Eric Saint-Etienne <eric.saint.etienne@oracle.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Fixes: 1e6285699b30 ("perf symbols: Fix slowness due to -ffunction-section")
Link: http://lkml.kernel.org/r/20190316080556.3075-12-changbin.du@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/util/map.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c index 64bea5eb8bf6..e32628cd20a7 100644 --- a/tools/perf/util/map.c +++ b/tools/perf/util/map.c @@ -577,10 +577,25 @@ static void __maps__purge(struct maps *maps) } } +static void __maps__purge_names(struct maps *maps) +{ + struct rb_root *root = &maps->names; + struct rb_node *next = rb_first(root); + + while (next) { + struct map *pos = rb_entry(next, struct map, rb_node_name); + + next = rb_next(&pos->rb_node_name); + rb_erase_init(&pos->rb_node_name, root); + map__put(pos); + } +} + static void maps__exit(struct maps *maps) { down_write(&maps->lock); __maps__purge(maps); + __maps__purge_names(maps); up_write(&maps->lock); } |