Re: [PATCH 0/3] perf tool: Fix multiple memory leakages

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On 12/3/2024 6:04 AM, Namhyung Kim wrote:
On Thu, Nov 28, 2024 at 08:54:29PM +0800, Zhongqiu Han wrote:
Fix memory leakages when btf_node or bpf_prog_info_node is duplicated
during insertion into perf_env.

Signed-off-by: Zhongqiu Han <quic_zhonhan@xxxxxxxxxxx>
---
Zhongqiu Han (3):
   perf header: Fix one memory leakage in process_bpf_btf()
   perf header: Fix one memory leakage in process_bpf_prog_info()
   perf bpf: Fix two memory leakages when calling
     perf_env__insert_bpf_prog_info()

Although I have a nitpick in the patch 3, it looks good otherwise.

Reviewed-by: Namhyung Kim <namhyung@xxxxxxxxxx>

Hi Namhyung,
Thanks for your review~
I will arise the V2 to optimize patch 3.

And I don't think the Fixes tags are correct, but it won't apply before
the change it points to.  So for practical reason, I'm ok with that.

Thanks,
Namhyung


I will fix the Fixes tag as follows on V2:

[PATCH 1/3] perf header: Fix one memory leakage in process_bpf_btf()
Fixes: a70a1123174a ("perf bpf: Save BTF information as headers to
perf.data")

[PATCH 2/3] perf header: Fix one memory leakage in
process_bpf_prog_info()
Fixes: 606f972b1361 ("perf bpf: Save bpf_prog_info information as
headers to perf.data")


[PATCH 3/3] perf bpf: Fix two memory leakages when calling
perf_env__insert_bpf_prog_info()
Fixes: e4378f0cb90b ("perf bpf: Save bpf_prog_info in a rbtree in
perf_env")
Fixes: d56354dc4909 ("perf tools: Save bpf_prog_info and BTF of new BPF
programs")



  tools/perf/util/bpf-event.c | 10 ++++++++--
  tools/perf/util/env.c       | 12 ++++++++----
  tools/perf/util/env.h       |  4 ++--
  tools/perf/util/header.c    |  8 ++++++--
  4 files changed, 24 insertions(+), 10 deletions(-)


base-commit: f486c8aa16b8172f63bddc70116a0c897a7f3f02
--
2.25.1



--
Thx and BRs,
Zhongqiu Han




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