[$] Getting Lustre upstream

The Lustre filesystem has a longhistory, some of which intersects with Linux. It was added to the stagingtree in 2013, but was bounced out ofstaging in 2018, due to a lack of progress and a development modelthat was incompatible with the kernel's. Lustre may be working its wayback into the kernel, though. In a filesystem-track session atthe 2025 Linux Storage, Filesystem, Memory Management, and BPF Summit(LSFMM+BPF), Timothy Day and James Simmons led a discussion on how to getLustre into the mainline.