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Merge tag 'perf-urgent-2023-10-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull perf events fix from Ingo Molnar:
 "Fix group event semantics"

* tag 'perf-urgent-2023-10-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf: Disallow mis-matched inherited group reads
This commit is contained in:
Linus Torvalds
2023-10-21 11:09:29 -07:00
parent 023cc83605 32671e3799
commit 94be133fb2
2 changed files with 34 additions and 6 deletions
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include/linux/perf_event.h
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@@ -704,6 +704,7 @@ struct perf_event {
/* The cumulative AND of all event_caps for events in this group. */
int group_caps;
unsigned int group_generation;
struct perf_event *group_leader;
/*
* event->pmu will always point to pmu in which this event belongs.