packfile: move MIDX into packfile store

The multi-pack index still is tracked as a member of the object database
source, but ultimately the MIDX is always tied to one specific packfile
store.

Move the structure into `struct packfile_store` accordingly. This
ensures that the packfile store now keeps track of all data related to
packfiles.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 1 insertions, 7 deletions

diff --git a/odb.c b/odb.c
index f159fbdd99..902251f9ed 100644
--- a/odb.c
+++ b/odb.c
@@ -1078,14 +1078,8 @@ struct object_database *odb_new(struct repository *repo,
 void odb_close(struct object_database *o)
 {
 	struct odb_source *source;
-
-	for (source = o->sources; source; source = source->next) {
+	for (source = o->sources; source; source = source->next)
 		packfile_store_close(source->packfiles);
-		if (source->midx)
-			close_midx(source->midx);
-		source->midx = NULL;
-	}
-
 	close_commit_graph(o);
 }