fio serialize across jobs

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Hi All,
Back in commit 997b5680d139ce82c2034ba3a0d602cfd778b89b "fio: add serialize_overlap option" the feature was added to prevent write/trim race conditions within the queue.  Can this feature be applied to multiple jobs?  Consider:

fio --ioengine=libaio --direct=1  --filename=/dev/nvme0n1 --time_based --name=test1 --rw=randwrite --runtime=5s --name=test2 --rw=randwrite --runtime=5s --serialize_overlap=1

Would we have to call in_flight_overlap() in a loop with all thread data pointers?

Thanks.

Regards,
Jeff

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