linux-kernel - [PATCH 2/5] perf evsel: Introduce an observed performance device

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Date:   Thu, 10 Dec 2020 12:03:37 +0300
From:   Alexander Antonov <alexander.antonov@...ux.intel.com>
To:     acme@...nel.org
Cc:     linux-kernel@...r.kernel.org, jolsa@...hat.com,
        alexander.shishkin@...ux.intel.com, mark.rutland@....com,
        namhyung@...nel.org, mingo@...hat.com, peterz@...radead.org,
        ak@...ux.intel.com, alexander.antonov@...ux.intel.com
Subject: [PATCH 2/5] perf evsel: Introduce an observed performance device

Adding evsel::perf_device void pointer.

For performance monitoring purposes, an evsel can have a related device.
These changes allow to attribute, for example, I/O performance metrics
to IIO stack.

Signed-off-by: Alexander Antonov <alexander.antonov@...ux.intel.com>
---
 tools/perf/util/evsel.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 79a860d8e3ee..c346920f477a 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -127,6 +127,7 @@ struct evsel {
 	 * See also evsel__has_callchain().
 	 */
 	__u64			synth_sample_type;
+	void			*perf_device;
 };
 
 struct perf_missing_features {
-- 
2.19.1