Recently I ran xfstests on 5.9.16, and I noticed that ext4/049 failed.
This case is tested for commit a149d2a5cabb (ext4: fix check to
prevent false positive report of incorrect used inodes). The reason is
that this commit is not merged in the 5.9.y branch, should we merge it
into the 5.9.y as well as other unmerged branches?