perf hists: Remove needless global col lenght calcs

To support multiple events we need to do these calcs per 'struct hists'
instance, and it turns out we already do that at:

	__hists__add_entry
		hists__inc_nr_entries
			hists__calc_col_len

for all the unfiltered hist_entry instances we stash in the rb tree, so
trow away the dead code.

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

4 files changed, 10 insertions, 58 deletions

diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index fbf5754c8866..2b15c362ef56 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -424,33 +424,6 @@ int perf_event__synthesize_kernel_mmap(perf_event__handler_t process,
         return err;
 }
 
-static void thread__comm_adjust(struct thread *self, struct hists *hists)
-{
-        char *comm = self->comm;
-
-        if (!symbol_conf.col_width_list_str && !symbol_conf.field_sep &&
-            (!symbol_conf.comm_list ||
-             strlist__has_entry(symbol_conf.comm_list, comm))) {
-                u16 slen = strlen(comm);
-
-                if (hists__new_col_len(hists, HISTC_COMM, slen))
-                        hists__set_col_len(hists, HISTC_THREAD, slen + 6);
-        }
-}
-
-static int thread__set_comm_adjust(struct thread *self, const char *comm,
-                                   struct hists *hists)
-{
-        int ret = thread__set_comm(self, comm);
-
-        if (ret)
-                return ret;
-
-        thread__comm_adjust(self, hists);
-
-        return 0;
-}
-
 int perf_event__process_comm(union perf_event *event,
                              struct perf_sample *sample __used,
                              struct perf_session *session)
@@ -459,8 +432,7 @@ int perf_event__process_comm(union perf_event *event,
 
         dump_printf(": %s:%d\n", event->comm.comm, event->comm.tid);
 
-        if (thread == NULL || thread__set_comm_adjust(thread, event->comm.comm,
-                                                      &session->hists)) {
+        if (thread == NULL || thread__set_comm(thread, event->comm.comm)) {
                 dump_printf("problem processing PERF_RECORD_COMM, skipping event.\n");
                 return -1;
         }
@@ -760,18 +732,6 @@ void thread__find_addr_location(struct thread *self,
                 al->sym = NULL;
 }
 
-static void dso__calc_col_width(struct dso *self, struct hists *hists)
-{
-        if (!symbol_conf.col_width_list_str && !symbol_conf.field_sep &&
-            (!symbol_conf.dso_list ||
-             strlist__has_entry(symbol_conf.dso_list, self->name))) {
-                u16 slen = dso__name_len(self);
-                hists__new_col_len(hists, HISTC_DSO, slen);
-        }
-
-        self->slen_calculated = 1;
-}
-
 int perf_event__preprocess_sample(const union perf_event *event,
                                   struct perf_session *session,
                                   struct addr_location *al,
@@ -817,23 +777,8 @@ int perf_event__preprocess_sample(const union perf_event *event,
                         strlist__has_entry(symbol_conf.dso_list,
                                            al->map->dso->long_name)))))
                         goto out_filtered;
-                /*
-                 * We have to do this here as we may have a dso with no symbol
-                 * hit that has a name longer than the ones with symbols
-                 * sampled.
-                 */
-                if (!sort_dso.elide && !al->map->dso->slen_calculated)
-                        dso__calc_col_width(al->map->dso, &session->hists);
 
                 al->sym = map__find_symbol(al->map, al->addr, filter);
-        } else {
-                const unsigned int unresolved_col_width = BITS_PER_LONG / 4;
-
-                if (hists__col_len(&session->hists, HISTC_DSO) < unresolved_col_width &&
-                    !symbol_conf.col_width_list_str && !symbol_conf.field_sep &&
-                    !symbol_conf.dso_list)
-                        hists__set_col_len(&session->hists, HISTC_DSO,
-                                           unresolved_col_width);
         }
 
         if (symbol_conf.sym_list && al->sym &&
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index da2899e8c6f8..f7ad6bdbc667 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -50,6 +50,15 @@ static void hists__calc_col_len(struct hists *self, struct hist_entry *h)
 
         if (h->ms.sym)
                 hists__new_col_len(self, HISTC_SYMBOL, h->ms.sym->namelen);
+        else {
+                const unsigned int unresolved_col_width = BITS_PER_LONG / 4;
+
+                if (hists__col_len(self, HISTC_DSO) < unresolved_col_width &&
+                    !symbol_conf.col_width_list_str && !symbol_conf.field_sep &&
+                    !symbol_conf.dso_list)
+                        hists__set_col_len(self, HISTC_DSO,
+                                           unresolved_col_width);
+        }
 
         len = thread__comm_len(h->thread);
         if (hists__new_col_len(self, HISTC_COMM, len))
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index ba6d48949092..00014e32c288 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -207,7 +207,6 @@ struct dso *dso__new(const char *name)
                 dso__set_short_name(self, self->name);
                 for (i = 0; i < MAP__NR_TYPES; ++i)
                         self->symbols[i] = self->symbol_names[i] = RB_ROOT;
-                self->slen_calculated = 0;
                 self->origin = DSO__ORIG_NOT_FOUND;
                 self->loaded = 0;
                 self->sorted_by_name = 0;
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index 670cd1c88f54..4d7ed09fe332 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -132,7 +132,6 @@ struct dso {
         struct rb_root   symbol_names[MAP__NR_TYPES];
         enum dso_kernel_type    kernel;
         u8               adjust_symbols:1;
-        u8               slen_calculated:1;
         u8               has_build_id:1;
         u8               hit:1;
         u8               annotate_warned:1;