[Krirox]

What type of PR is this?

/kind bug

What this PR does / why we need it:

SetApiRouteConfig wrote apiRouteConfigCache under RLock. Dump ranges that same map under RLock too. Two read locks do not exclude each other, so an RDS update can insert while a dump ranges the map, and Go fatals with concurrent map iteration and map write.

Take Lock instead, matching SetApiCluster.

Which issue(s) this PR fixes:
Fixes #1975

Special notes for your reviewer:

Added TestSetApiRouteConfigConcurrentWithDump (1000 concurrent Set + Dump pairs). Could not run go test ./pkg/cache/v2 in this tree because the embedded bpf2go .o files are not generated; expecting CI to cover it.

Does this PR introduce a user-facing change?:

Fix a kernel-native config dump race that could crash kmesh-daemon while routes update.

[kmesh-bot]

Keywords which can automatically close issues and at(@) or hashtag(#) mentions are not allowed in commit messages.

The list of commits with invalid commit messages:

• 6bf040c fix: take write lock in SetApiRouteConfig

Details

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[kmesh-bot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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Details

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 39.94%. Comparing base (c48f7f0) to head (6bf040c).
⚠️ Report is 3 commits behind head on main.

Files with missing lines	Coverage Δ
pkg/cache/v2/route.go	63.07% <100.00%> (+10.76%)	⬆️

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