[tip:perf/core] perf header: Remove data_offset seek as it's not needed

[tip-bot for Jiri Olsa]

Commit-ID:  75211dbfabf1de3a42703f4d3cd6f6e047289d40
Gitweb:     http://git.kernel.org/tip/75211dbfabf1de3a42703f4d3cd6f6e047289d40
Author:     Jiri Olsa <jolsa@xxxxxxxxxx>
AuthorDate: Wed, 17 Jul 2013 19:49:42 +0200
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
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@xxxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Cc: Corey Ashford <cjashfor@xxxxxxxxxxxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Link: http://lkml.kernel.org/r/1374083403-14591-3-git-send-email-jolsa@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 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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