mm: fix finish_fault() handling for large folios

Aristeu Rozanskirequested to merge
arozansk/centos-stream-10:arozansk-RHEL-83854 into main

JIRA: https://issues.redhat.com/browse/RHEL-83854
Tested: by me

This one was a hard one to track. Trinity would trigger this but
sometimes taking multiple runs. We might need
3685024ed backported in the future too, but I prefer not to mix up both
in the same ticket.

Signed-off-by: Aristeu Rozanski arozansk@redhat.com

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