Merge branch 'sg/commit-graph-cleanups' into master

The changed-path Bloom filter is improved using ideas from an
independent implementation.

* sg/commit-graph-cleanups:
  commit-graph: simplify write_commit_graph_file() #2
  commit-graph: simplify write_commit_graph_file() #1
  commit-graph: simplify parse_commit_graph() #2
  commit-graph: simplify parse_commit_graph() #1
  commit-graph: clean up #includes
  diff.h: drop diff_tree_oid() & friends' return value
  commit-slab: add a function to deep free entries on the slab
  commit-graph-format.txt: all multi-byte numbers are in network byte order
  commit-graph: fix parsing the Chunk Lookup table
  tree-walk.c: don't match submodule entries for 'submod/anything'

1 files changed, 5 insertions, 9 deletions

diff --git a/shallow.c b/shallow.c
index b826de9..91b9e10 100644
--- a/shallow.c
+++ b/shallow.c
@@ -110,6 +110,10 @@ void rollback_shallow_file(struct repository *r, struct shallow_lock *lk)
  * supports a "valid" flag.
  */
 define_commit_slab(commit_depth, int *);
+static void free_depth_in_slab(int **ptr)
+{
+	FREE_AND_NULL(*ptr);
+}
 struct commit_list *get_shallow_commits(struct object_array *heads, int depth,
 		int shallow_flag, int not_shallow_flag)
 {
@@ -176,15 +180,7 @@ struct commit_list *get_shallow_commits(struct object_array *heads, int depth,
 			}
 		}
 	}
-	for (i = 0; i < depths.slab_count; i++) {
-		int j;
-
-		if (!depths.slab[i])
-			continue;
-		for (j = 0; j < depths.slab_size; j++)
-			free(depths.slab[i][j]);
-	}
-	clear_commit_depth(&depths);
+	deep_clear_commit_depth(&depths, free_depth_in_slab);
 
 	return result;
 }