David Goldblatt ee202efc79 Convert remaining arena_stats_t fields to atomics
These were all size_ts, so we have atomics support for them on all platforms, so
the conversion is straightforward.

Left non-atomic is curlextents, which AFAICT is not used atomically anywhere.
2017-03-13 18:22:33 -07:00
..
2017-03-08 23:19:01 -08:00
2017-03-08 23:19:01 -08:00
2017-03-06 15:08:43 -08:00
2017-03-06 15:08:43 -08:00
2017-01-19 18:31:07 -08:00
2017-01-19 18:31:07 -08:00
2017-03-06 15:08:43 -08:00
2017-03-07 10:25:33 -08:00
2017-03-08 23:19:01 -08:00
2017-03-06 15:08:43 -08:00
2017-02-26 11:05:27 -08:00