Comment 1 for bug 2055002

this change seems to break copying files within a CIFS mount (cp is getting killed, and dmesg contains a BUG entry pointing to cifs_flush_folio - see the attached dmesg.log).

Reproduced with 2 different Samba-shares with the current 6.5.0-32-generic linux-image.
Not present in linux-image-6.5.0-26-generic

Reverting "cifs: fix flushing folio regression for 6.1 backport" makes the issue disappear in my tests.
(Which seems sensible, since, at a very quick glance, `66dabbb65d673aef40dd17bf62c042be8f6d4a4b` probably introduced the change in 6.4, and is part of the mantic source, while it is not in the 6.1 tree)