perf tools: Fix comm column adjusting

The librarization of the thread helpers between annotate and
report lost some perf report specifics.

This patch fixes the thread comm column adjusting that has
been omitted during this export.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
LKML-Reference: <1250604226-6852-1-git-send-email-fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

tools/perf/builtin-report.c

@@ -665,6 +665,27 @@ static void dso__calc_col_width(struct dso *self)
 	self->slen_calculated = 1;
 }
 
+static int thread__set_comm_adjust(struct thread *self, const char *comm)
+{
+	int ret = thread__set_comm(self, comm);
+
+	if (ret)
+		return ret;
+
+	if (!col_width_list_str && !field_sep &&
+	    (!comm_list || strlist__has_entry(comm_list, comm))) {
+		unsigned int slen = strlen(comm);
+
+		if (slen > comms__col_width) {
+			comms__col_width = slen;
+			threads__col_width = slen + 6;
+		}
+	}
+
+	return 0;
+}
+
+
 static struct symbol *
 resolve_symbol(struct thread *thread, struct map **mapp,
 	       struct dso **dsop, u64 *ipp)
@@ -1056,7 +1077,7 @@ static void register_idle_thread(void)
 	struct thread *thread = threads__findnew(0, &threads, &last_match);
 
 	if (thread == NULL ||
-			thread__set_comm(thread, "[idle]")) {
+			thread__set_comm_adjust(thread, "[idle]")) {
 		fprintf(stderr, "problem inserting idle task.\n");
 		exit(-1);
 	}
@@ -1226,7 +1247,7 @@ process_comm_event(event_t *event, unsigned long offset, unsigned long head)
 		event->comm.comm, event->comm.pid);
 
 	if (thread == NULL ||
-	    thread__set_comm(thread, event->comm.comm)) {
+	    thread__set_comm_adjust(thread, event->comm.comm)) {
 		dump_printf("problem processing PERF_EVENT_COMM, skipping event.\n");
 		return -1;
 	}