linux-kernel - [PATCH v3 1/3] perf: Move perf_event_fasync() to perf

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Message-Id: <20240413141618.4160-2-khuey@kylehuey.com>
Date: Sat, 13 Apr 2024 07:16:16 -0700
From: Kyle Huey <me@...ehuey.com>
To: Kyle Huey <khuey@...ehuey.com>,
	linux-kernel@...r.kernel.org,
	Namhyung Kim <namhyung@...nel.org>,
	Ian Rodgers <irogers@...gle.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...nel.org>,
	Arnaldo Carvalho de Melo <acme@...nel.org>
Cc: Robert O'Callahan <robert@...llahan.org>,
	Ingo Molnar <mingo@...hat.com>,
	Mark Rutland <mark.rutland@....com>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
	Jiri Olsa <jolsa@...nel.org>,
	Adrian Hunter <adrian.hunter@...el.com>,
	linux-perf-users@...r.kernel.org
Subject: [PATCH v3 1/3] perf: Move perf_event_fasync() to perf_event.h

This will allow it to be called from perf_output_wakeup().

Signed-off-by: Kyle Huey <khuey@...ehuey.com>
---
 include/linux/perf_event.h | 8 ++++++++
 kernel/events/core.c       | 8 --------
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 13a2b05cc431..4924bae0a015 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -1680,6 +1680,14 @@ perf_event_addr_filters(struct perf_event *event)
 	return ifh;
 }
 
+static inline struct fasync_struct **perf_event_fasync(struct perf_event *event)
+{
+	/* only the parent has fasync state */
+	if (event->parent)
+		event = event->parent;
+	return &event->fasync;
+}
+
 extern void perf_event_addr_filters_sync(struct perf_event *event);
 extern void perf_report_aux_output_id(struct perf_event *event, u64 hw_id);
 
diff --git a/kernel/events/core.c b/kernel/events/core.c
index cd88d1e89eb8..7358b11f9003 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -6684,14 +6684,6 @@ static const struct file_operations perf_fops = {
  * to user-space before waking everybody up.
  */
 
-static inline struct fasync_struct **perf_event_fasync(struct perf_event *event)
-{
-	/* only the parent has fasync state */
-	if (event->parent)
-		event = event->parent;
-	return &event->fasync;
-}
-
 void perf_event_wakeup(struct perf_event *event)
 {
 	ring_buffer_wakeup(event);
-- 
2.34.1