perf session: Change add_hist_entry to take the tree root instead of session

In order to minimize the impact of storing multiple events in a
report this function will now take the root of the histogram
tree so that the logic for selecting the proper tree can be
inserted before the call.

Signed-off-by: Eric B Munson <ebmunson@us.ibm.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1267804269-22660-3-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 2 insertions, 1 deletions

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index cfc655d40bb7..cd16e6a7d6d0 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -56,7 +56,8 @@ static int perf_session__add_hist_entry(struct perf_session *self,
         if ((sort__has_parent || symbol_conf.use_callchain) && chain)
                 syms = perf_session__resolve_callchain(self, al->thread,
                                                        chain, &parent);
-        he = __perf_session__add_hist_entry(self, al, parent, count, &hit);
+        he = __perf_session__add_hist_entry(&self->hists, al, parent,
+                                            count, &hit);
         if (he == NULL)
                 return -ENOMEM;