linux-kernel - [PATCH 36/49] perf tools: Add cpu into struct perf

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Date:   Tue,  9 Jan 2018 16:35:09 +0100
From:   Jiri Olsa <jolsa@...nel.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     lkml <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        David Ahern <dsahern@...il.com>,
        Andi Kleen <ak@...ux.intel.com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: [PATCH 36/49] perf tools: Add cpu into struct perf_mmap

It will be useful in following patch to pin thread
to cpu based on the map it processes.

Link: http://lkml.kernel.org/n/tip-wmuc4l9cmfiyfkrjon4sungb@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@...nel.org>
---
 tools/perf/util/evlist.c | 2 +-
 tools/perf/util/mmap.c   | 3 ++-
 tools/perf/util/mmap.h   | 3 ++-
 3 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 93bf777ef7c7..d1127c9027e5 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -888,7 +888,7 @@ static int perf_evlist__mmap_per_evsel(struct perf_evlist *evlist, int idx,
 		if (*output == -1) {
 			*output = fd;
 
-			if (perf_mmap__mmap(&maps[idx], mp, *output)  < 0)
+			if (perf_mmap__mmap(&maps[idx], mp, *output, cpu)  < 0)
 				return -1;
 		} else {
 			if (ioctl(fd, PERF_EVENT_IOC_SET_OUTPUT, *output) != 0)
diff --git a/tools/perf/util/mmap.c b/tools/perf/util/mmap.c
index 3f3b5a574484..da587e7d7eed 100644
--- a/tools/perf/util/mmap.c
+++ b/tools/perf/util/mmap.c
@@ -199,7 +199,7 @@ void perf_mmap__munmap(struct perf_mmap *map)
 	auxtrace_mmap__munmap(&map->auxtrace_mmap);
 }
 
-int perf_mmap__mmap(struct perf_mmap *map, struct mmap_params *mp, int fd)
+int perf_mmap__mmap(struct perf_mmap *map, struct mmap_params *mp, int fd, int cpu)
 {
 	/*
 	 * The last one will be done at perf_evlist__mmap_consume(), so that we
@@ -226,6 +226,7 @@ int perf_mmap__mmap(struct perf_mmap *map, struct mmap_params *mp, int fd)
 		return -1;
 	}
 	map->fd = fd;
+	map->cpu = cpu;
 
 	if (auxtrace_mmap__mmap(&map->auxtrace_mmap,
 				&mp->auxtrace_mp, map->base, fd))
diff --git a/tools/perf/util/mmap.h b/tools/perf/util/mmap.h
index 5cec43f6f1e8..b14bf0040518 100644
--- a/tools/perf/util/mmap.h
+++ b/tools/perf/util/mmap.h
@@ -18,6 +18,7 @@ struct perf_mmap {
 	void			 *base;
 	int			 mask;
 	int			 fd;
+	int			 cpu;
 	refcount_t		 refcnt;
 	u64			 prev;
 	struct auxtrace_mmap	 auxtrace_mmap;
@@ -59,7 +60,7 @@ struct mmap_params {
 	bool track_mmap;
 };
 
-int perf_mmap__mmap(struct perf_mmap *map, struct mmap_params *mp, int fd);
+int perf_mmap__mmap(struct perf_mmap *map, struct mmap_params *mp, int fd, int cpu);
 void perf_mmap__munmap(struct perf_mmap *map);
 
 void perf_mmap__get(struct perf_mmap *map);
-- 
2.13.6