packfile: reorder functions to avoid function declaration

Reorder functions so that we can avoid a forward declaration of
`prepare_packed_git()`.

Signed-off-by: Patrick Steinhardt <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: pks-t

packfile.c

@@ -946,40 +946,6 @@ static void prepare_packed_git_one(struct odb_source *source)
 	string_list_clear(data.garbage, 0);
 }
 
-static void prepare_packed_git(struct repository *r);
-/*
- * Give a fast, rough count of the number of objects in the repository. This
- * ignores loose objects completely. If you have a lot of them, then either
- * you should repack because your performance will be awful, or they are
- * all unreachable objects about to be pruned, in which case they're not really
- * interesting as a measure of repo size in the first place.
- */
-unsigned long repo_approximate_object_count(struct repository *r)
-{
-	if (!r->objects->approximate_object_count_valid) {
-		struct odb_source *source;
-		unsigned long count = 0;
-		struct packed_git *p;
-
-		prepare_packed_git(r);
-
-		for (source = r->objects->sources; source; source = source->next) {
-			struct multi_pack_index *m = get_multi_pack_index(source);
-			if (m)
-				count += m->num_objects;
-		}
-
-		for (p = r->objects->packfiles->packs; p; p = p->next) {
-			if (open_pack_index(p))
-				continue;
-			count += p->num_objects;
-		}
-		r->objects->approximate_object_count = count;
-		r->objects->approximate_object_count_valid = 1;
-	}
-	return r->objects->approximate_object_count;
-}
-
 DEFINE_LIST_SORT(static, sort_packs, struct packed_git, next);
 
 static int sort_pack(const struct packed_git *a, const struct packed_git *b)
@@ -1098,6 +1064,39 @@ struct list_head *get_packed_git_mru(struct repository *r)
 	return &r->objects->packfiles->mru;
 }
 
+/*
+ * Give a fast, rough count of the number of objects in the repository. This
+ * ignores loose objects completely. If you have a lot of them, then either
+ * you should repack because your performance will be awful, or they are
+ * all unreachable objects about to be pruned, in which case they're not really
+ * interesting as a measure of repo size in the first place.
+ */
+unsigned long repo_approximate_object_count(struct repository *r)
+{
+	if (!r->objects->approximate_object_count_valid) {
+		struct odb_source *source;
+		unsigned long count = 0;
+		struct packed_git *p;
+
+		prepare_packed_git(r);
+
+		for (source = r->objects->sources; source; source = source->next) {
+			struct multi_pack_index *m = get_multi_pack_index(source);
+			if (m)
+				count += m->num_objects;
+		}
+
+		for (p = r->objects->packfiles->packs; p; p = p->next) {
+			if (open_pack_index(p))
+				continue;
+			count += p->num_objects;
+		}
+		r->objects->approximate_object_count = count;
+		r->objects->approximate_object_count_valid = 1;
+	}
+	return r->objects->approximate_object_count;
+}
+
 unsigned long unpack_object_header_buffer(const unsigned char *buf,
 		unsigned long len, enum object_type *type, unsigned long *sizep)
 {