linux-kernel - [PATCH PATCH v2 v2 1/6] perf/core: Make perf_event_aux

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Message-Id: <20250718-perf_aux_pause_resume_bpf_rebase-v2-1-992557b8fb16@arm.com>
Date: Fri, 18 Jul 2025 16:25:35 +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, 
 Leo Yan <leo.yan@....com>
Subject: [PATCH PATCH v2 v2 1/6] perf/core: Make perf_event_aux_pause() as
 external function

Expose perf_event_aux_pause() as an external function, this will be used
by BPF kfunc in a sequential change.

Signed-off-by: Leo Yan <leo.yan@....com>
---
 include/linux/perf_event.h | 1 +
 kernel/events/core.c       | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index ec9d96025683958e909bb2463439dc69634f4ceb..9445c36e9f23e9090c7bf26c8085d2e4f308d38b 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -1252,6 +1252,7 @@ extern int perf_event_read_local(struct perf_event *event, u64 *value,
 				 u64 *enabled, u64 *running);
 extern u64 perf_event_read_value(struct perf_event *event,
 				 u64 *enabled, u64 *running);
+extern void perf_event_aux_pause(struct perf_event *event, bool pause);
 
 extern struct perf_callchain_entry *perf_callchain(struct perf_event *event, struct pt_regs *regs);
 
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 1f746469fda58dbc7651184adfd75962932026fb..f0a7e106910058832d0b52da8f1fb44107a57538 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -8409,7 +8409,7 @@ static void __perf_event_aux_pause(struct perf_event *event, bool pause)
 	}
 }
 
-static void perf_event_aux_pause(struct perf_event *event, bool pause)
+void perf_event_aux_pause(struct perf_event *event, bool pause)
 {
 	struct perf_buffer *rb;
 

-- 
2.34.1