[tip:perf/core] perf util: Save page size in a trace file to pevent

tip-bot for Namhyung Kim
2013-07-19T07:46:56Z

Commit-ID: 30f36762aab575f2894f7528d91ecd0b6e26e3e4
Gitweb: http://git.kernel.org/tip/30f36762aab575f2894f7528d91ecd0b6e26e3e4
Author: Namhyung Kim <namhyung.kim@lge.com>
AuthorDate: Tue, 4 Jun 2013 14:20:22 +0900
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Fri, 12 Jul 2013 13:52:17 -0300

perf util: Save page size in a trace file to pevent

We now have page_size field in struct pevent, save the actual size of
the system.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1370323231-14022-8-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/trace-event-read.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/trace-event-read.c b/tools/perf/util/trace-event-read.c
index af215c0..c6b491b 100644
--- a/tools/perf/util/trace-event-read.c
+++ b/tools/perf/util/trace-event-read.c
@@ -349,6 +349,7 @@ ssize_t trace_report(int fd, struct pevent **ppevent, bool __repipe)
int show_funcs = 0;
int show_printk = 0;
ssize_t size = -1;
+ int file_page_size;
struct pevent *pevent;
int err;

@@ -393,10 +394,12 @@ ssize_t trace_report(int fd, struct pevent **ppevent, bool __repipe)
goto out;
long_size = buf[0];

- page_size = read4(pevent);
- if (!page_size)
+ file_page_size = read4(pevent);
+ if (!file_page_size)
goto out;

+ pevent_set_page_size(pevent, file_page_size);
+
err = read_header_files(pevent);
if (err)
goto out;