On Tue, Mar 19, 2013 at 08:01:15PM +0700, Nguyen Thai Ngoc Duy wrote:

> deepest_delta is a global variable but is updated without protection
> in resolve_delta(), a multithreaded function. Add a new mutex for it,
> but only protect and update when it's actually used (i.e. show_stat is
> non-zero).

This makes sense to me.

> Another variable that will not be updated is delta_depth in "struct
> object_entry" as it's only useful when show_stat is 1. Putting it in
> "if (show_stat)" makes it clearer.

Having just read through this code for the first time, I agree that
having the "if (show_stat)" would have made it a lot more clear under
what conditions and for what purpose the delta_depth flag was being

>  builtin/index-pack.c | 30 +++++++++++++++++++++++-------
>  1 file changed, 23 insertions(+), 7 deletions(-)

Patch looks good to me. Thanks.

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