lazy index hashing

This delays the hashing of index names until it becomes necessary for
the first time.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/cache.h b/cache.h
index 409738ca6..e4aeff07d 100644
--- a/cache.h
+++ b/cache.h
@@ -191,6 +191,7 @@ struct index_state {
 	struct cache_tree *cache_tree;
 	time_t timestamp;
 	void *alloc;
+	unsigned name_hash_initialized : 1;
 	struct hash_table name_hash;
 };