[all-commits] [llvm/llvm-project] 28507a: [MLIR] Fix thread safety of the deleter in PyDense...

[Fabian Tschopp via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 28507ac62928d79f647804de4df60409b3ebb364
      https://github.com/llvm/llvm-project/commit/28507ac62928d79f647804de4df60409b3ebb364
  Author: Fabian Tschopp <fabian.tschopp at modular.com>
  Date:   2025-01-28 (Tue, 28 Jan 2025)

  Changed paths:
    M mlir/lib/Bindings/Python/IRAttributes.cpp

  Log Message:
  -----------
  [MLIR] Fix thread safety of the deleter in PyDenseResourceElementsAttribute (#124832)

In general, `PyDenseResourceElementsAttribute` can get deleted at any
time and any thread, where unlike the `getFromBuffer` call, the Python
interpreter may not be initialized and the GIL may not be held.

This PR fixes segfaults caused by `PyBuffer_Release` when the GIL is not
being held by the thread calling the deleter.



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