Flexible Data Placement (FDP) allows for writes to specify a "stream" that the write is associated with, allowing the SSD to perform additional optimizations, grouping that write with related writes. Write stream support was added in Linux 6.16.

I would like to have support in io-uring for setting a write_stream, which may accelerate some workloads.

References

• https://lwn.net/Articles/1018642/
• https://lwn.net/ml/all/20250203184129.1829324-1-kbusch@meta.com/