linux-kernel - Re: [PATCH v3 0/6] perf auxtrace: Support AUX pause and resume with BPF

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Message-ID: <20250725101617.GA143191@e132581.arm.com>
Date: Fri, 25 Jul 2025 11:16:17 +0100
From: Leo Yan <leo.yan@....com>
To: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Namhyung Kim <namhyung@...nel.org>, Jiri Olsa <jolsa@...nel.org>,
	Ian Rogers <irogers@...gle.com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	KP Singh <kpsingh@...nel.org>,
	Matt Bobrowski <mattbobrowski@...gle.com>,
	Song Liu <song@...nel.org>, Alexei Starovoitov <ast@...nel.org>,
	Daniel Borkmann <daniel@...earbox.net>,
	Andrii Nakryiko <andrii@...nel.org>,
	Martin KaFai Lau <martin.lau@...ux.dev>,
	Eduard Zingerman <eddyz87@...il.com>,
	Yonghong Song <yonghong.song@...ux.dev>,
	John Fastabend <john.fastabend@...il.com>,
	Stanislav Fomichev <sdf@...ichev.me>, Hao Luo <haoluo@...gle.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Masami Hiramatsu <mhiramat@...nel.org>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	James Clark <james.clark@...aro.org>,
	Suzuki K Poulose <suzuki.poulose@....com>,
	Mike Leach <mike.leach@...aro.org>
Cc: linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org,
	bpf@...r.kernel.org, linux-trace-kernel@...r.kernel.org
Subject: Re: [PATCH v3 0/6] perf auxtrace: Support AUX pause and resume with
 BPF

Hi all,

On Fri, Jul 25, 2025 at 10:59:09AM +0100, Leo Yan wrote:
> This series extends Perf for fine-grained tracing by using BPF program
> to pause and resume AUX tracing. The BPF program can be attached to
> tracepoints (including ftrace tracepoints and dynamic tracepoints, like
> kprobe, kretprobe, uprobe and uretprobe).

Due to stale prefixes in my local b4 configuration, the version number
in this series is mess.

I have resent v3 [1], please kindly review the resent version. Sorry
for inconvenience.

Leo

[1] https://lore.kernel.org/linux-perf-users/20250725-perf_aux_pause_resume_bpf_rebase-v3-0-ae21deb49d1a@arm.com/T/#mb884408efc23dc7013b925e65fe4eeb051b97c7f