[PATCH 24/76] perf util: Save page size in a trace file to pevent

From: Arnaldo Carvalho de Melo
Date: Thu Jul 18 2013 - 16:09:37 EST


From: Namhyung Kim <namhyung.kim@xxxxxxx>

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

Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1370323231-14022-8-git-send-email-namhyung@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
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;
--
1.8.1.4

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