Thanks, Andrew!
That's really strange that this fix wasn't ported.
All needed helpers are present:
https://git.launchpad.net/~canonical-kernel/ubuntu/+source/linux-azure/+git/focal/tree/mm/prfile.c?h=azure-5.13-next
--
You received this bug notification because you are a member of Ubuntu
Bugs,
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: linux-azure (Ubuntu)
Status: New => Confirmed
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1967924
Title: