X-Git-Url: http://git.monstr.eu/?p=linux-2.6-microblaze.git;a=blobdiff_plain;f=tools%2Fperf%2Futil%2Fsession.c;h=86145dd699ca3f9a51a3c8e214844176a2127c14;hp=106b3d60881a51a202cee77a47954ccb7eecf697;hb=ce09673636f9581d2e2e24af785c463c030a1fd8;hpb=afdd14704d7eb4d7634cb7ba8d117066fed44282

diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 106b3d60881a..86145dd699ca 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1723,6 +1723,7 @@ int perf_session__peek_event(struct perf_session *session, off_t file_offset,
 	if (event->header.size < hdr_sz || event->header.size > buf_sz)
 		return -1;
 
+	buf += hdr_sz;
 	rest = event->header.size - hdr_sz;
 
 	if (readn(fd, buf, rest) != (ssize_t)rest)
@@ -2155,6 +2156,7 @@ struct reader {
 	u64		 data_size;
 	u64		 data_offset;
 	reader_cb_t	 process;
+	bool		 in_place_update;
 };
 
 static int
@@ -2188,7 +2190,9 @@ reader__process_events(struct reader *rd, struct perf_session *session,
 	mmap_prot  = PROT_READ;
 	mmap_flags = MAP_SHARED;
 
-	if (session->header.needs_swap) {
+	if (rd->in_place_update) {
+		mmap_prot  |= PROT_WRITE;
+	} else if (session->header.needs_swap) {
 		mmap_prot  |= PROT_WRITE;
 		mmap_flags = MAP_PRIVATE;
 	}
@@ -2274,6 +2278,7 @@ static int __perf_session__process_events(struct perf_session *session)
 		.data_size	= session->header.data_size,
 		.data_offset	= session->header.data_offset,
 		.process	= process_simple,
+		.in_place_update = session->data->in_place_update,
 	};
 	struct ordered_events *oe = &session->ordered_events;
 	struct perf_tool *tool = session->tool;