From: Andrew Morton <akpm@linux-foundation.org>
To: Waiman Long <longman@redhat.com>
Cc: Takashi Iwai <tiwai@suse.de>, Davidlohr Bueso <dbueso@suse.de>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] ipc: Limit sysctl value to IPCMNI
Date: Mon, 18 Jun 2018 14:51:14 -0700 [thread overview]
Message-ID: <20180618145114.4a50c378b38b639d7ea8ecdc@linux-foundation.org> (raw)
In-Reply-To: <b4162bb3-3cb2-bd86-63f5-da4f92079745@redhat.com>
On Mon, 18 Jun 2018 13:27:24 +0800 Waiman Long <longman@redhat.com> wrote:
> >>
> >> Maybe another possible solution would be to add another proc entry to
> >> handle this correctly, and make the old one only for compatibility.
> > Yes, I guess so. Just leave the old tunable alone. Possibly we
> > could add a printk_once("please switch to the new interface").
>
> A problem with that is the fact that those sysctl parameters have been
> there for so long that it may be hard to persuade users to use the new
> sysctl parameters.
That's what a once-off warning could help with. Tell them they're
using a deprecated interface. It would take a few years, but when
people see the old interface is scheduled for removal, they'll switch,
over time.
next prev parent reply other threads:[~2018-06-18 21:51 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-08 13:49 Takashi Iwai
2018-06-08 21:16 ` Andrew Morton
2018-06-09 6:48 ` Takashi Iwai
2018-06-11 23:18 ` Andrew Morton
2018-06-12 6:36 ` Takashi Iwai
2018-06-12 23:36 ` Andrew Morton
2018-06-18 5:27 ` Waiman Long
2018-06-18 21:51 ` Andrew Morton [this message]
2018-06-11 21:27 ` Waiman Long
2018-06-12 6:31 ` Takashi Iwai
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