[$] Topics in filesystem testing

It should come as no surprise that a gathering of filesystem developerswould discuss filesystem testing; it has been a mainstay of the Linux Storage,Filesystem, Memory Management, and BPF Summit over the years and the2026 summit was no exception. Ted Ts'o led the discussion this time; hehad a few different topics to raise, including his perception of increasingregressions for ext4 in the stable kernels and what can be done to helpreduce them. As with other similarsessions at the summit over the years,there is a lot of interest in collaborating on test inputs and outputs, butfinding a way to centralize that information has so far eluded thefilesystem community.