Patch 10/10 is based on an old POC patch by me, but it's heavily modified. It looks like it does a few minor things that are not optimal, like extra spinlock/unlock, and wait_for_completion_timeout() with magical timeout value. I haven't tested this version, but I guess any fixes or cleanups can be done later on top of it.I can revert it now if you want, just let me know.
Maybe reverting it would be better yes. Thanks Mathias