From: Namhyung Kim <namhyung@kernel.org>
To: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@kernel.org>,
Adrian Hunter <adrian.hunter@intel.com>,
Kan Liang <kan.liang@linux.intel.com>,
James Clark <james.clark@linaro.org>,
Dapeng Mi <dapeng1.mi@linux.intel.com>,
Thomas Richter <tmricht@linux.ibm.com>,
Veronika Molnarova <vmolnaro@redhat.com>,
Chun-Tse Shao <ctshao@google.com>, Leo Yan <leo.yan@arm.com>,
Hao Ge <gehao@kylinos.cn>, Howard Chu <howardchu95@gmail.com>,
Weilin Wang <weilin.wang@intel.com>,
Levi Yun <yeoreum.yun@arm.com>,
"Dr. David Alan Gilbert" <linux@treblig.org>,
Gautam Menghani <gautam@linux.ibm.com>,
Tengda Wu <wutengda@huaweicloud.com>,
linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org,
bpf@vger.kernel.org, Ian Rogers <irogers@google.com>
Subject: Re: [PATCH v4 00/10] Move uid filtering to BPF filters
Date: Tue, 10 Jun 2025 11:38:59 -0700 [thread overview]
Message-ID: <174958073941.4039944.6156587445391341437.b4-ty@kernel.org> (raw)
In-Reply-To: <20250604174545.2853620-1-irogers@google.com>
On Wed, 04 Jun 2025 10:45:34 -0700, Ian Rogers wrote:
> Rather than scanning /proc and skipping PIDs based on their UIDs, use
> BPF filters for uid filtering. The /proc scanning in thread_map is
> racy as the PID may exit before the perf_event_open causing perf to
> abort. BPF UID filters are more robust as they avoid the race. The
> /proc scanning also misses processes starting after the perf
> command. Add a helper for commands that support UID filtering and wire
> up. Remove the non-BPF UID filtering support given it doesn't work.
>
> [...]
Applied to perf-tools-next, thanks!
Best regards,
Namhyung
prev parent reply other threads:[~2025-06-10 18:39 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-04 17:45 Ian Rogers
2025-06-04 17:45 ` [PATCH v4 01/10] perf parse-events filter: Use evsel__find_pmu Ian Rogers
2025-06-04 17:45 ` [PATCH v4 02/10] perf target: Separate parse_uid into its own function Ian Rogers
2025-06-04 17:45 ` [PATCH v4 03/10] perf parse-events: Add parse_uid_filter helper Ian Rogers
2025-06-06 17:41 ` Namhyung Kim
2025-06-06 18:13 ` Ian Rogers
2025-06-06 20:01 ` Namhyung Kim
2025-06-04 17:45 ` [PATCH v4 04/10] perf record: Switch user option to use BPF filter Ian Rogers
2025-06-04 17:45 ` [PATCH v4 05/10] perf tests record: Add basic uid filtering test Ian Rogers
2025-06-04 17:45 ` [PATCH v4 06/10] perf top: Switch user option to use BPF filter Ian Rogers
2025-06-04 17:45 ` [PATCH v4 07/10] perf trace: " Ian Rogers
2025-06-04 17:45 ` [PATCH v4 08/10] perf bench evlist-open-close: " Ian Rogers
2025-06-04 17:45 ` [PATCH v4 09/10] perf target: Remove uid from target Ian Rogers
2025-06-04 17:45 ` [PATCH v4 10/10] perf thread_map: Remove uid options Ian Rogers
2025-06-06 2:44 ` [PATCH v4 00/10] Move uid filtering to BPF filters Namhyung Kim
2025-06-10 18:38 ` Namhyung Kim [this message]
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