[PATCH 1/3] inet: Fix getnameinfo (NI_NOFQDN) race condition (BZ#28566)

[Florian Weimer]

* Adhemerval Zanella:

> I meant H.J internal lock optimization [1], where the lll_lock int this
> case will be mostly a relaxed load instead of a CAS (since once 'domain'
> is properly initialized, there is no need to take the lock).
>
> [1] https://sourceware.org/pipermail/libc-alpha/2021-November/132899.html

It doesn't work this way.  It still does a CAS.

Thanks,
Florian