[PATCH 02/24] perf kvm stat live: Use perf_evlist__add_pollfd return fd position

From: Arnaldo Carvalho de Melo
Date: Tue Oct 14 2014 - 17:05:01 EST

From: Jiri Olsa <jolsa@xxxxxxxxxx>

With the interface changed in following commit:

2171a9256862 tools lib fd array: Allow associating an integer cookie with each entry

the perf_evlist__add_pollfd function now returns the fd position in the
pollfd array.

Hence we no longer need to count the fd position, because we get it as
the return value.

Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: Corey Ashford <cjashfor@xxxxxxxxxxxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Milian Wolff <mail@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Link: http://lkml.kernel.org/r/1412179229-19466-4-git-send-email-jolsa@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
tools/perf/builtin-kvm.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c
index 663d6eda0822..dc7d704735bd 100644
--- a/tools/perf/builtin-kvm.c
+++ b/tools/perf/builtin-kvm.c
@@ -933,10 +933,10 @@ static int kvm_events_live_report(struct perf_kvm_stat *kvm)


- if (perf_evlist__add_pollfd(kvm->evlist, fileno(stdin)) < 0)
+ nr_stdin = perf_evlist__add_pollfd(kvm->evlist, fileno(stdin));
+ if (nr_stdin < 0)
goto out;

- nr_stdin = nr_fds;
if (fd_set_nonblock(fileno(stdin)) != 0)
goto out;

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