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gh-133467: fix data race in type_set_name #137302
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                    colesbury
  
              
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LGTM
| Thanks @kumaraditya303 for the PR 🌮🎉.. I'm working now to backport this PR to: 3.14. | 
    
  miss-islington 
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Fix data race in `type_set_name` by assigning name under stop the world pause making it thread safe in free-threading. (cherry picked from commit e99bc7f) Co-authored-by: Kumar Aditya <[email protected]>
| GH-137303 is a backport of this pull request to the 3.14 branch. | 
    
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Fix data race in `type_set_name` by assigning name under stop the world pause making it thread safe in free-threading.
    
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gh-133467: fix data race in `type_set_name` (GH-137302) Fix data race in `type_set_name` by assigning name under stop the world pause making it thread safe in free-threading. (cherry picked from commit e99bc7f) Co-authored-by: Kumar Aditya <[email protected]>
  
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This fixes two data races:
type_set_name: Assign the new name under stop the world pause to avoid data races with threads concurrently reading and writing name.slot_tp_descr_get: Avoid assignment inslot_tp_descr_getas it is not thread safe in free-threading and is a minor optimization.