Comment # 2 on bug 1224403 from Anthony Iliopoulos

(In reply to Anthony Iliopoulos from comment #1)
> That's due to upstream kernel commit commit c9bdf768dd93 ("mm: convert
> swap_readpage() to swap_read_folio()"), merged in v6.8-rc1.
> 
> The swapin.bt probe needs to be changed accordingly from
> kprobe:swap_readpage to kprobe:swap_read_folio.

This was fixed upstream in bpftrace via commit 19c829cbf85b ("tools/swapin:
Support swap_read_folio() (#3209)"), which was released in v0.21.0.

Factory bpftrace is still on v0.20.4 though, so I am leaving the bug open in
case Shung-Hsi wants to update it (or backport the fix).