linux-kernel - [tip:perf/core] perf header: Remove data

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Message-ID: <tip-75211dbfabf1de3a42703f4d3cd6f6e047289d40@git.kernel.org>
Date:	Fri, 19 Jul 2013 00:54:22 -0700
From:	tip-bot for Jiri Olsa <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	acme@...hat.com, linux-kernel@...r.kernel.org, paulus@...ba.org,
	hpa@...or.com, mingo@...nel.org, a.p.zijlstra@...llo.nl,
	namhyung@...nel.org, jolsa@...hat.com, fweisbec@...il.com,
	ak@...ux.intel.com, dsahern@...il.com, tglx@...utronix.de,
	cjashfor@...ux.vnet.ibm.com, mingo@...e.hu
Subject: [tip:perf/core] perf header: Remove data_offset seek as it'
 s not needed

Commit-ID:  75211dbfabf1de3a42703f4d3cd6f6e047289d40
Gitweb:     http://git.kernel.org/tip/75211dbfabf1de3a42703f4d3cd6f6e047289d40
Author:     Jiri Olsa <jolsa@...hat.com>
AuthorDate: Wed, 17 Jul 2013 19:49:42 +0200
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Wed, 17 Jul 2013 16:46:17 -0300

perf header: Remove data_offset seek as it's not needed

Removing data_offset seek as it's not needed, because data are not read
by syscall but mmaped instead.

Signed-off-by: Jiri Olsa <jolsa@...hat.com>
Cc: Andi Kleen <ak@...ux.intel.com>
Cc: Corey Ashford <cjashfor@...ux.vnet.ibm.com>
Cc: David Ahern <dsahern@...il.com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Ingo Molnar <mingo@...e.hu>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Link: http://lkml.kernel.org/r/1374083403-14591-3-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/util/header.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index b3f253f..035efe7 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -2794,8 +2794,6 @@ int perf_session__read_header(struct perf_session *session)
 	perf_header__process_sections(header, fd, &session->pevent,
 				      perf_file_section__process);
 
-	lseek(fd, header->data_offset, SEEK_SET);
-
 	if (perf_evlist__prepare_tracepoint_events(session->evlist,
 						   session->pevent))
 		goto out_delete_evlist;
--
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