<snip>
> Finally, this would also be a good opportunity to test regular renames
> with subvolumes too, as we had bugs and regressions in the past like
> in commit 4871c1588f92c6c13f4713a7009f25f217055807 ("Btrfs: use right
> root when checking for hash collision
> "), and never got any test cases for them.
What specific tests do you have in mind? Ordinary renames of files
within a subvolume are already tested by merit of generic geneirc/02[345].
The test in the patch you cited is basically renaming a subvolume within
the same subvolume, that's easy enough.
<snip>
