From 376016ec71c3a6c883f2ca77a3f1c0245fd60dc2 Mon Sep 17 00:00:00 2001
From: Patrick Steinhardt <ps@pks.im>
Date: Mon, 3 Nov 2025 08:42:03 +0100
Subject: [PATCH] object-file: move loose object map into loose source

The loose object map is used to map from the repository's canonical
object hash to the compatibility hash. As the name indicates, this map
is only used for loose objects, and as such it is tied to a specific
loose object source.

Same as with preceding commits, move this map into the loose object
source accordingly.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 loose.c       | 10 +++++-----
 object-file.c |  1 +
 object-file.h |  3 +++
 odb.c         |  1 -
 odb.h         |  3 ---
 5 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/loose.c b/loose.c
index 8cc7573ff2..56cf64b648 100644
--- a/loose.c
+++ b/loose.c
@@ -49,7 +49,7 @@ static int insert_loose_map(struct odb_source *source,
 			    const struct object_id *oid,
 			    const struct object_id *compat_oid)
 {
-	struct loose_object_map *map = source->loose_map;
+	struct loose_object_map *map = source->loose->map;
 	int inserted = 0;
 
 	inserted |= insert_oid_pair(map->to_compat, oid, compat_oid);
@@ -65,8 +65,8 @@ static int load_one_loose_object_map(struct repository *repo, struct odb_source
 	struct strbuf buf = STRBUF_INIT, path = STRBUF_INIT;
 	FILE *fp;
 
-	if (!source->loose_map)
-		loose_object_map_init(&source->loose_map);
+	if (!source->loose->map)
+		loose_object_map_init(&source->loose->map);
 	if (!source->loose->cache) {
 		ALLOC_ARRAY(source->loose->cache, 1);
 		oidtree_init(source->loose->cache);
@@ -125,7 +125,7 @@ int repo_read_loose_object_map(struct repository *repo)
 
 int repo_write_loose_object_map(struct repository *repo)
 {
-	kh_oid_map_t *map = repo->objects->sources->loose_map->to_compat;
+	kh_oid_map_t *map = repo->objects->sources->loose->map->to_compat;
 	struct lock_file lock;
 	int fd;
 	khiter_t iter;
@@ -231,7 +231,7 @@ int repo_loose_object_map_oid(struct repository *repo,
 	khiter_t pos;
 
 	for (source = repo->objects->sources; source; source = source->next) {
-		struct loose_object_map *loose_map = source->loose_map;
+		struct loose_object_map *loose_map = source->loose->map;
 		if (!loose_map)
 			continue;
 		map = (to == repo->compat_hash_algo) ?
diff --git a/object-file.c b/object-file.c
index 20daa629a1..ccc67713fa 100644
--- a/object-file.c
+++ b/object-file.c
@@ -2014,5 +2014,6 @@ void odb_source_loose_free(struct odb_source_loose *loose)
 	if (!loose)
 		return;
 	odb_source_loose_clear_cache(loose);
+	loose_object_map_clear(&loose->map);
 	free(loose);
 }
diff --git a/object-file.h b/object-file.h
index bec855e8e5..f8a96a45f5 100644
--- a/object-file.h
+++ b/object-file.h
@@ -32,6 +32,9 @@ struct odb_source_loose {
 	 */
 	uint32_t subdir_seen[8]; /* 256 bits */
 	struct oidtree *cache;
+
+	/* Map between object IDs for loose objects. */
+	struct loose_object_map *map;
 };
 
 struct odb_source_loose *odb_source_loose_new(struct odb_source *source);
diff --git a/odb.c b/odb.c
index b3e8d4a49c..d1df9609e2 100644
--- a/odb.c
+++ b/odb.c
@@ -370,7 +370,6 @@ static void odb_source_free(struct odb_source *source)
 {
 	free(source->path);
 	odb_source_loose_free(source->loose);
-	loose_object_map_clear(&source->loose_map);
 	free(source);
 }
 
diff --git a/odb.h b/odb.h
index 77104396af..f9a3137a34 100644
--- a/odb.h
+++ b/odb.h
@@ -51,9 +51,6 @@ struct odb_source {
 	/* Private state for loose objects. */
 	struct odb_source_loose *loose;
 
-	/* Map between object IDs for loose objects. */
-	struct loose_object_map *loose_map;
-
 	/*
 	 * private data
 	 *