perf top: Fix freeze on --call-graph flat/folded
The callchain rbtree is rebuilt periodically, so it needs to reinitialize the root everytime. Otherwise it can be stuck in the rbtree insertion with stale pointers. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kan Liang <kan.liang@intel.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1448521700-32062-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
parent
b49a8fe526
commit
0356218a68
|
@ -290,6 +290,7 @@ static void
|
|||
sort_chain_flat(struct rb_root *rb_root, struct callchain_root *root,
|
||||
u64 min_hit, struct callchain_param *param __maybe_unused)
|
||||
{
|
||||
*rb_root = RB_ROOT;
|
||||
__sort_chain_flat(rb_root, &root->node, min_hit);
|
||||
}
|
||||
|
||||
|
|
Loading…
Reference in a new issue