From: Stefan Beller <sbeller@google.com>
Date: Thu, 09 Feb 2017 16:58:44 GMT
Subject: Re: [PATCH 1/5] refs: store submodule ref stores in a hashmap
Message-ID: <CAGZ79kau2bYs7zegEiacAdbhn1LyOfAH9__rePfbQkX2iLgmMQ@mail.gmail.com>
In-Reply-To: <a944446c4c374125082f5ad8b79e731704b66196.1486629195.git.mhagger@alum.mit.edu>

> @@ -1402,17 +1435,17 @@ struct ref_store *ref_store_init(const char *submodule)
>
>  struct ref_store *lookup_ref_store(const char *submodule)
>  {

> +       if (!submodule_ref_stores.tablesize)
> +               hashmap_init(&submodule_ref_stores, submodule_hash_cmp, 20);


So we can lookup a submodule even before we initialized the subsystem?
Does that actually happen? (It sounds like a bug to me.)

Instead of initializing, you could return NULL directly here.

Otherwise looks good.

Thanks,
Stefan