[xodice]

The Linux kernel doesn't rely on the filesystem for swap files insuring no more overheard than swap partitions. It bypasses the filesystem and is told what blocks it can use, that's why some filesystems do not support swapfiles as there is additional plumbing to be done.

[samus]

True, I realized when I read TA. After all, the kernel not considering the swap file's offset was precisely the defect in 5.12-rc1.