Reduce hook registration code duplication

[soulitzer]

Stack from ghstack (oldest at bottom):

• Replace non-reentrant checkpoint with a rewrite that can be nested and contain grad #90105
• Improve hooks ordering behavior #85849
• -> Reduce hook registration code duplication #91418

[pytorch-bot]

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🧪 See artifacts and rendered test results at hud.pytorch.org/pr/91418

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❌ 1 Failures

As of commit d66b199:

FLAKY - The following jobs failed but were likely due to flakiness present on master:

• linux-focal-rocm5.3-py3.8 / test (default, 1, 2, linux.rocm.gpu)

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[albanD]

SGTM

[soulitzer]

@pytorchbot merge -g

[pytorchmergebot]

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[pytorchmergebot]

Merge failed

Reason: 2 additional jobs have failed, first few of them are: trunk ,trunk / linux-focal-rocm5.3-py3.8 / test (default, 1, 2, linux.rocm.gpu)

Details for Dev Infra team

Raised by workflow job

[soulitzer]

@pytorchbot merge -f "Unrelated failure"

[pytorchmergebot]

Merge started

Your change will be merged immediately since you used the force (-f) flag, bypassing any CI checks (ETA: 1-5 minutes).

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Advanced Debugging

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