Re: [PATCH v9 3/3] mm/madvise: introduce process_madvise() syscall: an external memory hinting API

[Florian Weimer]

* Minchan Kim:

>       ssize_t process_madvise(int pidfd, const struct iovec *iovec,
>                 unsigned long vlen, int advice, unsigned int flags);

size_t for vlen provides a clearer hint regarding the type of special
treatment needed for ILP32 here (zero extension, not changing the type
to long long).