[denotational]

In its defence, the headline says "file operation" rather than "syscall", which makes it slightly less egregious: it's referring to `mmap` as a member of `struct file_operations`.

[dooglius]

The mmap syscall operates on files so it's still very easily misinterpreted

[commandersaki]

Which worked as intended; I first had a shock, did a double take, and realised there was nuance in file operation, read a little bit of the article and confirmed my suspicion it didn't have anything to do with the syscall.