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Subject[PATCH 1/7] perf header: Use evlist->nr_entries on write_event_desc()
Date
From: Namhyung Kim <namhyung.kim@lge.com>

Number of events (evsels) in a evlist is kept on nr_entries field
so that we don't need to recalculate it.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
tools/perf/util/header.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 9696e64c9dbd..a124b9328170 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -610,11 +610,10 @@ static int write_event_desc(int fd, struct perf_header *h __used,
struct perf_evlist *evlist)
{
struct perf_evsel *evsel;
- u32 nre = 0, nri, sz;
+ u32 nre, nri, sz;
int ret;

- list_for_each_entry(evsel, &evlist->entries, node)
- nre++;
+ nre = evlist->nr_entries;

/*
* write number of events
--
1.7.11.4


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