linux-kernel - Re: [PATCH v1 0/8] Address/leak sanitizer clean ups

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Message-ID: <ZjqUWp9gcIKIy24y@x1>
Date: Tue, 7 May 2024 17:51:38 -0300
From: Arnaldo Carvalho de Melo <acme@...nel.org>
To: Ian Rogers <irogers@...gle.com>
Cc: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>,
	Namhyung Kim <namhyung@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
	Jiri Olsa <jolsa@...nel.org>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Kan Liang <kan.liang@...ux.intel.com>,
	Oliver Upton <oliver.upton@...ux.dev>,
	James Clark <james.clark@....com>,
	Tim Chen <tim.c.chen@...ux.intel.com>,
	Yicong Yang <yangyicong@...ilicon.com>,
	K Prateek Nayak <kprateek.nayak@....com>,
	Yanteng Si <siyanteng@...ngson.cn>,
	Sun Haiyong <sunhaiyong@...ngson.cn>,
	Kajol Jain <kjain@...ux.ibm.com>,
	Ravi Bangoria <ravi.bangoria@....com>, Li Dong <lidong@...o.com>,
	Paran Lee <p4ranlee@...il.com>, Ben Gainey <ben.gainey@....com>,
	Andi Kleen <ak@...ux.intel.com>,
	Athira Rajeev <atrajeev@...ux.vnet.ibm.com>,
	linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org
Subject: Re: [PATCH v1 0/8] Address/leak sanitizer clean ups

On Tue, May 07, 2024 at 11:35:37AM -0700, Ian Rogers wrote:
> Remove unnecessary reference counts for structs with no gets.  Add
> reference count checking to comm_str and mem_info.  Fix memory leaks
> and errors detected on "perf mem report" by address sanitizer and leak
> sanitizer.

Applied locally, doing build tests. Will soon go to tmp.perf-tools-next.

- Arnaldo
 
> Ian Rogers (8):
>   perf ui browser: Don't save pointer to stack memory
>   perf annotate: Fix memory leak in annotated_source
>   perf block-info: Remove unused refcount
>   perf cpumap: Remove refcnt from cpu_aggr_map
>   perf comm: Add reference count checking to comm_str
>   perf mem-info: Move mem-info out of mem-events and symbol
>   perf mem-info: Add reference count checking
>   perf hist: Avoid hist_entry_iter mem_info memory leak
> 
>  tools/perf/builtin-c2c.c                      |  13 +-
>  tools/perf/builtin-report.c                   |   3 +-
>  tools/perf/builtin-script.c                   |  12 +-
>  tools/perf/builtin-stat.c                     |  16 +-
>  tools/perf/tests/mem.c                        |  11 +-
>  tools/perf/ui/browser.c                       |   4 +-
>  tools/perf/ui/browser.h                       |   2 +-
>  tools/perf/util/Build                         |   1 +
>  tools/perf/util/annotate.c                    |   6 +
>  tools/perf/util/block-info.c                  |  22 +-
>  tools/perf/util/block-info.h                  |  15 +-
>  tools/perf/util/comm.c                        | 196 +++++++++++-------
>  tools/perf/util/cpumap.c                      |   2 -
>  tools/perf/util/cpumap.h                      |   2 -
>  tools/perf/util/hist.c                        |  62 +++---
>  tools/perf/util/hist.h                        |   8 +-
>  tools/perf/util/machine.c                     |   7 +-
>  tools/perf/util/mem-events.c                  |  36 ++--
>  tools/perf/util/mem-events.h                  |  29 +--
>  tools/perf/util/mem-info.c                    |  35 ++++
>  tools/perf/util/mem-info.h                    |  54 +++++
>  .../scripting-engines/trace-event-python.c    |  12 +-
>  tools/perf/util/sort.c                        |  69 +++---
>  tools/perf/util/symbol.c                      |  26 +--
>  tools/perf/util/symbol.h                      |  12 --
>  25 files changed, 370 insertions(+), 285 deletions(-)
>  create mode 100644 tools/perf/util/mem-info.c
>  create mode 100644 tools/perf/util/mem-info.h
> 
> -- 
> 2.45.0.rc1.225.g2a3ae87e7f-goog