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>
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 1e3ad22..3fc0d47 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -665,6 +665,27 @@
 	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 @@
 	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 @@
 		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;
 	}