Subject: Re: [PATCH/RFC] read-cache: fix file time comparisons with different precisions

From: Karsten Blees <[email-masked]>
Date: Tue, 29 Sep 2015 12:23:37 +0200

Am 28.09.2015 um 14:52 schrieb Johannes Schindelin:
> Otherwise there would be that little loop-hole where (nsec % 1000) == 0 *by chance* and we assume the timestamps to be identical even if they are not.

Yeah, but in this case the file would be racy, as racy-checks use
the same comparison now.

IMO change detection is so fundamental that it should Just Work,
without having a plethora of config options that we need to explain
to end users.

If that means that once in a million cases we need an extra content
check to revalidate such falsely racy entries, that's fine with me.

Cheers,
Karsten