linux-kernel - Re: [PATCH 2/8] [nmi watchdog] touch_softlockup cleanups and softlockup

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Message-ID: <20100512202628.GK15159@redhat.com>
Date:	Wed, 12 May 2010 16:26:28 -0400
From:	Don Zickus <dzickus@...hat.com>
To:	Frederic Weisbecker <fweisbec@...il.com>
Cc:	mingo@...e.hu, peterz@...radead.org, gorcunov@...il.com,
	aris@...hat.com, linux-kernel@...r.kernel.org,
	randy.dunlap@...cle.com
Subject: Re: [PATCH 2/8] [nmi watchdog] touch_softlockup cleanups and
 softlockup_tick removal

On Wed, May 12, 2010 at 10:06:54PM +0200, Frederic Weisbecker wrote:
> > diff --git a/kernel/sysctl.c b/kernel/sysctl.c
> > index 1083897..1fec781 100644
> > --- a/kernel/sysctl.c
> > +++ b/kernel/sysctl.c
> > @@ -827,15 +827,6 @@ static struct ctl_table kern_table[] = {
> >  		.extra1		= &zero,
> >  		.extra2		= &one,
> >  	},
> > -	{
> > -		.procname	= "softlockup_thresh",
> > -		.data		= &softlockup_thresh,
> > -		.maxlen		= sizeof(int),
> > -		.mode		= 0644,
> > -		.proc_handler	= proc_dosoftlockup_thresh,
> > -		.extra1		= &neg_one,
> > -		.extra2		= &sixty,
> > -	},
> 
> 
> 
> I wonder about the ABI breakage.
> 
> But I suspect few userspace tools use it though, since this is
> mostly for kernel dev.

There is no breakage, this chunk of code was duplicated later in the file.
I am just removing the duplicated bits to simplify the SOFTLOCKUP Kconfig
stuff.

Cheers,
Don
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