linux-kernel - [PATCH 47/73] perf tools: Use perf

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Message-Id: <20190913132355.21634-48-jolsa@kernel.org>
Date:   Fri, 13 Sep 2019 15:23:29 +0200
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>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Michael Petlan <mpetlan@...hat.com>
Subject: [PATCH 47/73] perf tools: Use perf_mmap way to detect aux mmap

We will move this code into libperf shortly, so we
need to free it of 'struct auxtrace_mmap' usage,
because it won't be available in libperf (for now).

The perf_event_mmap_page::aux_size is set when the
aux mmap is mapped, so the check is equivalent.

Link: http://lkml.kernel.org/n/tip-nmj5fchj8wdglxj7d1voxj66@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@...nel.org>
---
 tools/perf/util/mmap.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/mmap.c b/tools/perf/util/mmap.c
index b904a7a57fdf..4b1d1ae79042 100644
--- a/tools/perf/util/mmap.c
+++ b/tools/perf/util/mmap.c
@@ -106,7 +106,9 @@ union perf_event *perf_mmap__read_event(struct mmap *map)
 
 static bool perf_mmap__empty(struct mmap *map)
 {
-	return perf_mmap__read_head(map) == map->core.prev && !map->auxtrace_mmap.base;
+	struct perf_event_mmap_page *pc = map->core.base;
+
+	return perf_mmap__read_head(map) == map->core.prev && !pc->aux_size;
 }
 
 void perf_mmap__consume(struct mmap *map)
-- 
2.21.0