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Folks heading to #atc18 check out our work on TxFS, the Texas Transactional File System!
cs.utexas.edu/~vijay/papers/…
We built TxFS in only 5K LOC by utilizing the file-system journal to get atomic and durable transactions.
cs.utexas.edu/~vijay/papers/…
We built TxFS in only 5K LOC by utilizing the file-system journal to get atomic and durable transactions.
Providing isolation for TxFS transactions was a hard problem. We customized isolation to each kernel data structure. For data structures like pages which have a narrow access interface, we provide eager conflict detection.
For inodes and dentries which are modified all over the place, we add a timestamp which captures modifications, and provide timestamp-based conflict detection.
