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perf header: Use evlist->nr_entries on write_event_desc() 

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>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1346821373-31621-2-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim 2012-09-05 14:02:47 +09:00 committed by Arnaldo Carvalho de Melo
parent 1204609916
commit 74ba9e11f0
1 changed files with 2 additions and 3 deletions
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5
tools/perf/util/header.c
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@ -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