[$] Filesystem testing for stable kernels

Leah Rumancik led a filesystem-track session at
the 2024 Linux Storage,
Filesystem, Memory Management, and BPF Summit on the testing needed to
qualify
XFS patches for the stable kernels. At last year's summit,
Rumancik, Amir Goldstein, and Chandan Babu Rajendra presented on their efforts to test and
backport fixes for the XFS filesystem to three separate stable kernels.
There has been some longstanding unhappiness in
the XFS-development community
with the stable-kernel process, which led to
backports ceasing for that filesystem until Goldstein started working on XFS testing for the stable
trees a few years ago. In this year's session, Rumancik updated
attendees on how things had gone over the last year and wanted to discuss some
remaining pain points for the process.