1 files changed, 47 insertions, 41 deletions

diff --git a/tools/perf/util/vdso.c b/tools/perf/util/vdso.c
index 3cc91ad048ea..1b6f8f6db7aa 100644
--- a/tools/perf/util/vdso.c
+++ b/tools/perf/util/vdso.c
@@ -138,22 +138,34 @@ static struct dso *__machine__addnew_vdso(struct machine *machine, const char *s
 	return dso;
 }
 
+struct machine__thread_dso_type_maps_cb_args {
+	struct machine *machine;
+	enum dso_type dso_type;
+};
+
+static int machine__thread_dso_type_maps_cb(struct map *map, void *data)
+{
+	struct machine__thread_dso_type_maps_cb_args *args = data;
+	struct dso *dso = map__dso(map);
+
+	if (!dso || dso__long_name(dso)[0] != '/')
+		return 0;
+
+	args->dso_type = dso__type(dso, args->machine);
+	return (args->dso_type != DSO__TYPE_UNKNOWN) ? 1 : 0;
+}
+
 static enum dso_type machine__thread_dso_type(struct machine *machine,
 					      struct thread *thread)
 {
-	enum dso_type dso_type = DSO__TYPE_UNKNOWN;
-	struct map *map;
-
-	maps__for_each_entry(thread->maps, map) {
-		struct dso *dso = map->dso;
-		if (!dso || dso->long_name[0] != '/')
-			continue;
-		dso_type = dso__type(dso, machine);
-		if (dso_type != DSO__TYPE_UNKNOWN)
-			break;
-	}
+	struct machine__thread_dso_type_maps_cb_args args = {
+		.machine = machine,
+		.dso_type = DSO__TYPE_UNKNOWN,
+	};
+
+	maps__for_each_map(thread__maps(thread), machine__thread_dso_type_maps_cb, &args);
 
-	return dso_type;
+	return args.dso_type;
 }
 
 #if BITS_PER_LONG == 64
@@ -238,17 +250,15 @@ static struct dso *__machine__findnew_compat(struct machine *machine,
 	const char *file_name;
 	struct dso *dso;
 
-	dso = __dsos__find(&machine->dsos, vdso_file->dso_name, true);
+	dso = dsos__find(&machine->dsos, vdso_file->dso_name, true);
 	if (dso)
-		goto out;
+		return dso;
 
 	file_name = vdso__get_compat_file(vdso_file);
 	if (!file_name)
-		goto out;
+		return NULL;
 
-	dso = __machine__addnew_vdso(machine, vdso_file->dso_name, file_name);
-out:
-	return dso;
+	return __machine__addnew_vdso(machine, vdso_file->dso_name, file_name);
 }
 
 static int __machine__findnew_vdso_compat(struct machine *machine,
@@ -294,21 +304,21 @@ static struct dso *machine__find_vdso(struct machine *machine,
 	dso_type = machine__thread_dso_type(machine, thread);
 	switch (dso_type) {
 	case DSO__TYPE_32BIT:
-		dso = __dsos__find(&machine->dsos, DSO__NAME_VDSO32, true);
+		dso = dsos__find(&machine->dsos, DSO__NAME_VDSO32, true);
 		if (!dso) {
-			dso = __dsos__find(&machine->dsos, DSO__NAME_VDSO,
-					   true);
+			dso = dsos__find(&machine->dsos, DSO__NAME_VDSO,
+					 true);
 			if (dso && dso_type != dso__type(dso, machine))
 				dso = NULL;
 		}
 		break;
 	case DSO__TYPE_X32BIT:
-		dso = __dsos__find(&machine->dsos, DSO__NAME_VDSOX32, true);
+		dso = dsos__find(&machine->dsos, DSO__NAME_VDSOX32, true);
 		break;
 	case DSO__TYPE_64BIT:
 	case DSO__TYPE_UNKNOWN:
 	default:
-		dso = __dsos__find(&machine->dsos, DSO__NAME_VDSO, true);
+		dso = dsos__find(&machine->dsos, DSO__NAME_VDSO, true);
 		break;
 	}
 
@@ -320,42 +330,38 @@ struct dso *machine__findnew_vdso(struct machine *machine,
 {
 	struct vdso_info *vdso_info;
 	struct dso *dso = NULL;
+	char *file;
 
-	down_write(&machine->dsos.lock);
 	if (!machine->vdso_info)
 		machine->vdso_info = vdso_info__new();
 
 	vdso_info = machine->vdso_info;
 	if (!vdso_info)
-		goto out_unlock;
+		return NULL;
 
 	dso = machine__find_vdso(machine, thread);
 	if (dso)
-		goto out_unlock;
+		return dso;
 
 #if BITS_PER_LONG == 64
 	if (__machine__findnew_vdso_compat(machine, thread, vdso_info, &dso))
-		goto out_unlock;
+		return dso;
 #endif
 
-	dso = __dsos__find(&machine->dsos, DSO__NAME_VDSO, true);
-	if (!dso) {
-		char *file;
+	dso = dsos__find(&machine->dsos, DSO__NAME_VDSO, true);
+	if (dso)
+		return dso;
 
-		file = get_file(&vdso_info->vdso);
-		if (file)
-			dso = __machine__addnew_vdso(machine, DSO__NAME_VDSO, file);
-	}
+	file = get_file(&vdso_info->vdso);
+	if (!file)
+		return NULL;
 
-out_unlock:
-	dso__get(dso);
-	up_write(&machine->dsos.lock);
-	return dso;
+	return __machine__addnew_vdso(machine, DSO__NAME_VDSO, file);
 }
 
 bool dso__is_vdso(struct dso *dso)
 {
-	return !strcmp(dso->short_name, DSO__NAME_VDSO) ||
-	       !strcmp(dso->short_name, DSO__NAME_VDSO32) ||
-	       !strcmp(dso->short_name, DSO__NAME_VDSOX32);
+	return !strcmp(dso__short_name(dso), DSO__NAME_VDSO) ||
+	       !strcmp(dso__short_name(dso), DSO__NAME_VDSO32) ||
+	       !strcmp(dso__short_name(dso), DSO__NAME_VDSOX32);
 }