linux-kernel - Re: [PATCH v2 7/7] random: Remove kernel.random.read_wakeup

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Message-ID: <CAG48ez2tnJzLNCgAqCC+AOKuLGBSvBRi2_HZ97bEJ0zP1kWLHg@mail.gmail.com>
Date:   Tue, 24 Sep 2019 22:30:55 +0200
From:   Jann Horn <jannh@...gle.com>
To:     Andy Lutomirski <luto@...nel.org>
Cc:     Theodore Tso <tytso@...gle.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux API <linux-api@...r.kernel.org>,
        Kees Cook <keescook@...omium.org>,
        "Jason A. Donenfeld" <Jason@...c4.com>,
        "Ahmed S. Darwish" <darwish.07@...il.com>,
        Lennart Poettering <mzxreary@...inter.de>,
        "Eric W. Biederman" <ebiederm@...ssion.com>,
        "Alexander E. Patrakov" <patrakov@...il.com>,
        Michael Kerrisk <mtk.manpages@...il.com>,
        Willy Tarreau <w@....eu>,
        Matthew Garrett <mjg59@...f.ucam.org>,
        Ext4 Developers List <linux-ext4@...r.kernel.org>,
        linux-man <linux-man@...r.kernel.org>
Subject: Re: [PATCH v2 7/7] random: Remove kernel.random.read_wakeup_threshold

On Fri, Sep 20, 2019 at 4:37 PM Andy Lutomirski <luto@...nel.org> wrote:
> It has no effect any more, so remove it.  We can revert this if
> there is some user code that expects to be able to set this sysctl.
>
> Signed-off-by: Andy Lutomirski <luto@...nel.org>
> ---
>  drivers/char/random.c | 18 +-----------------
>  1 file changed, 1 insertion(+), 17 deletions(-)
>
> diff --git a/drivers/char/random.c b/drivers/char/random.c
[...]
> -       {
> -               .procname       = "read_wakeup_threshold",

There's a line in bin_random_table in kernel/sysctl_binary.c that
refers to this sysctl, that should probably also be deleted?