InMem writes and extending truncates currently rely on infallible Vec/Cow growth, which may panic or abort on capacity or allocation failure. Define failure atomicity and the appropriate fs error, then use fallible reservation before mutation. Deferred from #1318 to keep allocation behavior unchanged during the broker refactor.
InMem writes and extending truncates currently rely on infallible Vec/Cow growth, which may panic or abort on capacity or allocation failure. Define failure atomicity and the appropriate fs error, then use fallible reservation before mutation. Deferred from #1318 to keep allocation behavior unchanged during the broker refactor.