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From:   Florian Weimer <fw@deneb.enyo.de>
To:     Minchan Kim <minchan@kernel.org>
Cc:     Andrew Morton <akpm@linux-foundation.org>,
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Subject: Re: [PATCH v9 3/3] mm/madvise: introduce process_madvise() syscall: an external memory hinting API
References: <20200901000633.1920247-1-minchan@kernel.org>
        <20200901000633.1920247-4-minchan@kernel.org>
Date:   Tue, 01 Sep 2020 20:46:02 +0200
In-Reply-To: <20200901000633.1920247-4-minchan@kernel.org> (Minchan Kim's
        message of "Mon, 31 Aug 2020 17:06:33 -0700")
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* 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).