I'm not an expert but: you can look at the log for any given file and see who authored what commit, who reviewed, who actually committed. For example, a different change by the same author [1]

And you can search the mailing list[2] by commit hash/author name/etc and look at relevant discussion trees to see lively patch discussion and criticism/final pull requests/etc.

I don't believe the changes in question have been merged.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/lin...

[2] https://lore.kernel.org/lkml/?q=David+E.+Box