[3.13] gh-117657: Fix data races when writing / reading ob_gc_bits (GH-118292)#118796
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…ythonGH-118292) Use relaxed atomics when reading / writing to the field. There are still a few places in the GC where we do not use atomics. Those should be safe as the world is stopped. (cherry picked from commit cb6f75a) Co-authored-by: mpage <mpage@meta.com>
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Use relaxed atomics when reading / writing to the field. There are still a
few places in the GC where we do not use atomics. Those should be safe as
the world is stopped.
(cherry picked from commit cb6f75a)
Co-authored-by: mpage mpage@meta.com