linux-kernel - [PATCH 03/35] perf ordered_events: Add ordered_events__last_flush

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Message-Id: <20220711093218.10967-4-adrian.hunter@intel.com>
Date:   Mon, 11 Jul 2022 12:31:46 +0300
From:   Adrian Hunter <adrian.hunter@...el.com>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     Jiri Olsa <jolsa@...hat.com>, Namhyung Kim <namhyung@...nel.org>,
        Ian Rogers <irogers@...gle.com>,
        Andi Kleen <ak@...ux.intel.com>, linux-kernel@...r.kernel.org,
        kvm@...r.kernel.org
Subject: [PATCH 03/35] perf ordered_events: Add ordered_events__last_flush_time()

Allow callers to get the ordered_events last flush timestamp.

This is needed in perf inject to obey finished-round ordering when
injecting additional events (e.g. from a guest perf.data file) with
timestamps. Any additional events that have timestamps before the last
flush time must be injected before the corresponding FINISHED_ROUND event.

Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
---
 tools/perf/util/ordered-events.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/perf/util/ordered-events.h b/tools/perf/util/ordered-events.h
index 0b05c3c0aeaa..8febbd7c98ca 100644
--- a/tools/perf/util/ordered-events.h
+++ b/tools/perf/util/ordered-events.h
@@ -75,4 +75,10 @@ void ordered_events__set_copy_on_queue(struct ordered_events *oe, bool copy)
 {
 	oe->copy_on_queue = copy;
 }
+
+static inline u64 ordered_events__last_flush_time(struct ordered_events *oe)
+{
+	return oe->last_flush;
+}
+
 #endif /* __ORDERED_EVENTS_H */
-- 
2.25.1