linux-kernel - perf: don't use obsolete getpagesize

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Date:	Thu, 14 Jan 2010 12:43:20 -0500
From:	Ulrich Drepper <drepper@...hat.com>
To:	a.p.zijlstra@...llo.nl, acme@...hat.com, eranian@...gle.com,
	fweisbec@...il.com, linux-kernel@...r.kernel.org,
	lizf@...fujitsu.com, mingo@...e.hu, paulus@...ba.org
Subject: perf: don't use obsolete getpagesize

perf uses the obsolete getpagesize function.  Let's do better and use the
correct POSIX interface to get the information: sysconf.


Signed-off-by: Ulrich Drepper <drepper@...hat.com>

diff --git a/tools/perf/util/data_map.c b/tools/perf/util/data_map.c
index b557b83..cc8b396 100644
--- a/tools/perf/util/data_map.c
+++ b/tools/perf/util/data_map.c
@@ -153,7 +153,7 @@ int perf_session__process_events(struct perf_session *self,
 
 	perf_event_ops__fill_defaults(ops);
 
-	page_size = getpagesize();
+	page_size = sysconf(_SC_PAGESIZE);
 
 	head = self->header.data_offset;
 	self->sample_type = perf_header__sample_type(&self->header);
diff --git a/tools/perf/util/trace-event-info.c b/tools/perf/util/trace-event-info.c
index cace355..948dc9e 100644
--- a/tools/perf/util/trace-event-info.c
+++ b/tools/perf/util/trace-event-info.c
@@ -533,7 +533,7 @@ int read_tracing_data(int fd, struct perf_event_attr *pattrs, int nb_events)
 	write_or_die(buf, 1);
 
 	/* save page_size */
-	page_size = getpagesize();
+	page_size = sysconf(_SC_PAGESIZE);
 	write_or_die(&page_size, 4);
 
 	read_header_files();
--
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