[tip: perf/core] perf: Move perf_event_fasync() to perf_event.h

[tip-bot2 for Kyle Huey]

The following commit has been merged into the perf/core branch of tip:

Commit-ID:     4a013980666857c1eb2df6a2137817caa21d38a6
Gitweb:        https://git.kernel.org/tip/4a013980666857c1eb2df6a2137817caa21d38a6
Author:        Kyle Huey <me@xxxxxxxxxxxx>
AuthorDate:    Sat, 13 Apr 2024 07:16:16 -07:00
Committer:     Ingo Molnar <mingo@xxxxxxxxxx>
CommitterDate: Sun, 14 Apr 2024 22:26:32 +02:00

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@xxxxxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20240413141618.4160-2-khuey@xxxxxxxxxxxx
---
 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 d5ff0c1..a5304ae 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -1686,6 +1686,14 @@ 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 6708c11..da9d9a1 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -6703,14 +6703,6 @@ 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);