perf hist: Calculate max_sym name len and nr_entries

Better done when we are adding entries, be it initially of when we're
re-sorting the histograms.

Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index bdde81eca69f..1b18d04195dc 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -19,10 +19,12 @@ struct events_stats {
 struct hists {
         struct rb_node          rb_node;
         struct rb_root          entries;
+        u64                     nr_entries;
         struct events_stats     stats;
         u64                     config;
         u64                     event_stream;
         u32                     type;
+        u32                     max_sym_namelen;
 };
 
 struct hist_entry *__hists__add_entry(struct hists *self,
@@ -38,7 +40,7 @@ int hist_entry__snprintf(struct hist_entry *self, char *bf, size_t size,
                          long displacement, bool color, u64 total);
 void hist_entry__free(struct hist_entry *);
 
-u64 hists__output_resort(struct hists *self);
+void hists__output_resort(struct hists *self);
 void hists__collapse_resort(struct hists *self);
 size_t hists__fprintf(struct hists *self, struct hists *pair,
                       bool show_displacement, FILE *fp);