linux-kernel - [tip:perf/core] perf session: Add 'data

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Date:   Tue, 22 Jan 2019 02:12:31 -0800
From:   tip-bot for Jiri Olsa <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     alexander.shishkin@...ux.intel.com, hpa@...or.com,
        linux-kernel@...r.kernel.org, peterz@...radead.org,
        jolsa@...nel.org, acme@...hat.com, mingo@...nel.org,
        namhyung@...nel.org, tglx@...utronix.de
Subject: [tip:perf/core] perf session: Add 'data_size' member to reader
 object

Commit-ID:  f66f0950527cd070d2949a0133275c30e717ba9b
Gitweb:     https://git.kernel.org/tip/f66f0950527cd070d2949a0133275c30e717ba9b
Author:     Jiri Olsa <jolsa@...nel.org>
AuthorDate: Thu, 10 Jan 2019 11:12:59 +0100
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Mon, 21 Jan 2019 15:15:57 -0300

perf session: Add 'data_size' member to reader object

Add a  'data_size' member to the reader object. Keep the 'data_size'
variable instead of replacing it with rd.data_size as it will be used in
the following patch.

Signed-off-by: Jiri Olsa <jolsa@...nel.org>
Acked-by: Namhyung Kim <namhyung@...nel.org>
Cc: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Cc: Peter Zijlstra <peterz@...radead.org>
Link: http://lkml.kernel.org/r/20190110101301.6196-5-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/util/session.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 06379cc87f59..9f29ed743425 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1822,17 +1822,19 @@ fetch_mmaped_event(struct perf_session *session,
 
 struct reader {
 	int	fd;
+	u64	data_size;
 };
 
 static int __perf_session__process_events(struct perf_session *session)
 {
 	struct reader rd = {
 		.fd		= perf_data__fd(session->data),
+		.data_size	= session->header.data_size,
 	};
 	struct ordered_events *oe = &session->ordered_events;
 	struct perf_tool *tool = session->tool;
 	u64 data_offset = session->header.data_offset;
-	u64 data_size = session->header.data_size;
+	u64 data_size = rd.data_size;
 	u64 head, page_offset, file_offset, file_pos, size;
 	int err, mmap_prot, mmap_flags, map_idx = 0;
 	size_t	mmap_size;