linux-kernel - Re: [REGRESSION] RLIMIT

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Message-ID: <1474085296.32273.95.camel@perches.com>
Date:   Fri, 16 Sep 2016 21:08:16 -0700
From:   Joe Perches <joe@...ches.com>
To:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Sam Varshavchik <mrsam@...rier-mta.com>,
        Ingo Molnar <mingo@...nel.org>
Cc:     Laura Abbott <labbott@...hat.com>, Brent <fix@...realm.com>,
        Konstantin Khlebnikov <koct9i@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Cyrill Gorcunov <gorcunov@...nvz.org>,
        Christian Borntraeger <borntraeger@...ibm.com>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [REGRESSION] RLIMIT_DATA crashes named

On Fri, 2016-09-16 at 17:040700, Linus Torvalds wrote:
> On Fri, Sep 16, 2016 at 4:58 PM, Linus Torvalds <torvalds@...ux-foundation.org> wrote:
> > Here's a totally untested patch. What do people say?
> Heh. It looks like "pr_xyz_once()" is used in places that haven't
> included "ratelimit.h", so this doesn't actually build for everything.
> But I guess as a concept patch it's not hard to understand, even if
> the implementation needs a bit of tweaking.

do_just_once just isn't a good name for a global
rate limited mechanism that does something very
different than the name.

Maybe allow_once_per_ratelimit or the like

There could be an equivalent do_once

https://lkml.org/lkml/2009/5/22/3