[25.0 backport] volume: Don't decrement refcount below 0 #47533
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[25.0 backport] volume: Don't decrement refcount below 0 #47533
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With both rootless and live restore enabled, there's some race condition which causes the container to be `Unmount`ed before the refcount is restored. This makes sure we don't underflow the refcount (uint64) when decrementing it. The root cause of this race condition still needs to be investigated and fixed, but at least this unflakies the `TestLiveRestore`. Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com> (cherry picked from commit 294fc97) Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
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With both rootless and live restore enabled, there's some race condition which causes the container to be
Unmounted before the refcount is restored.This makes sure we don't underflow the refcount (uint64) when decrementing it.
The root cause of this race condition still needs to be investigated and fixed, but at least this unflakies the
TestLiveRestore.- How to verify it
Check
TestLiveRestoreThe CI is green after running the test 30x times: afa01ac
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