[PATCH][BZ #19329] Fix race between tls allocation at thread creation and dlopen

[Torvald Riegel]

On Mon, 2016-01-18 at 20:09 +0000, Szabolcs Nagy wrote:
> of course using both atomics and locks is a bit
> ugly..

Not necessarily.  If it works and makes sense otherwise, I would not
advice against it.  Some problems are easier to solve with locks, some
not.  Mixing them isn't usually a big problem, if one follows some
rules.  For example, if you access something with atomics, access it
with atomics everywhere, including in the critical sections.