br: defer not in for-loop in the sendSplitRegionRequest

[hawkingrei]

Signed-off-by: Weizhen Wang [email protected]

What problem does this PR solve?

Issue Number: ref #31716

Problem Summary:

What is changed and how it works?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

None

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• 3pointer
• gozssky

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[sre-bot]

Code Coverage Details: https://codecov.io/github/pingcap/tidb/commit/bfa21074a5bfc88a1442f0ac1e34334dc982be6e

[3pointer]

/run-integration-br-tests

[3pointer]

/run-br-integration-tests

[3pointer]

/run-br-integration-tests

[3pointer]

/run-integration-br-tests

[sleepymole]

/run-integration-br-tests

[hawkingrei]

/run-integration-br-tests

[3pointer]

/run-integration-br-tests

[hawkingrei]

/run-check_dev_2

[3pointer]

LGTM

[3pointer]

/merge

[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: 6078f24

[ti-chi-bot]

@hawkingrei: Your PR was out of date, I have automatically updated it for you.

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/run-all-tests

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