Merge branch 'jk/delta-base-cache'

Recently we updated the code to manage the in-core cache that holds
objects that have recently been used to reconstitute other objects
that are stored as deltas against them, but the update used an
incorrect API function to manage the list of these objects.  This
has been fixed.

* jk/delta-base-cache:
  add_delta_base_cache: use list_for_each_safe

sha1_file.c

@@ -2269,11 +2269,11 @@ static void add_delta_base_cache(struct packed_git *p, off_t base_offset,
 	void *base, unsigned long base_size, enum object_type type)
 {
 	struct delta_base_cache_entry *ent = xmalloc(sizeof(*ent));
-	struct list_head *lru;
+	struct list_head *lru, *tmp;
 
 	delta_base_cached += base_size;
 
-	list_for_each(lru, &delta_base_cache_lru) {
+	list_for_each_safe(lru, tmp, &delta_base_cache_lru) {
 		struct delta_base_cache_entry *f =
 			list_entry(lru, struct delta_base_cache_entry, lru);
 		if (delta_base_cached <= delta_base_cache_limit)