[$] Testing for storage and filesystems

The kdevopskernel-testing framework has come up at several earlier summits, including in two separate sessions at last year's event.Testing kernel filesystems and the block layer, not to mention lots ofother kernel subsystems, has become increasinglyimportant over time. So it was nosurprise that Luis Chamberlain led a combined storage and filesystem session at the2023 Linux Storage, Filesystem,Memory-Management and BPF Summit to talk more about testing, theresources needed for it, and what can be done to improve it. It was thefinal session for this year's summit, so this article completes our coverage.