[PATCH] nscd: bump GC cycle during cache pruning (bug 26130)

[Florian Weimer]

* Andreas Schwab:

> On Jun 29 2020, Florian Weimer wrote:
>
>> I think this needs barriers after and before the increments.
>
> Why doesn't gc need those barriers?

I think it needs them as well.  I thought we had them there. 8-(

Thanks,
Florian