perf session: Remove superfluous callchain_cursor member

Since we have it in evsel->hists.callchain_cursor, remove it from
perf_session.

One more step in disentangling several places from requiring a
perf_session pointer.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-rxr5dj3di7ckyfmnz0naku1z@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 04288ee223ed..9b3bbb40d46f 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -777,7 +777,7 @@ static void perf_event__process_sample(const union perf_event *event,
 
                 if ((sort__has_parent || symbol_conf.use_callchain) &&
                     sample->callchain) {
-                        err = perf_session__resolve_callchain(session, al.thread,
+                        err = perf_session__resolve_callchain(session, evsel, al.thread,
                                                               sample->callchain, &parent);
                         if (err)
                                 return;
@@ -790,7 +790,7 @@ static void perf_event__process_sample(const union perf_event *event,
                 }
 
                 if (symbol_conf.use_callchain) {
-                        err = callchain_append(he->callchain, &session->callchain_cursor,
+                        err = callchain_append(he->callchain, &evsel->hists.callchain_cursor,
                                                sample->period);
                         if (err)
                                 return;