linux-kernel - Re: [PATCH] SELinux fixups needed for preemptable RCU from -rt

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Message-ID: <Pine.LNX.4.58.0804212113590.27460@gandalf.stny.rr.com>
Date:	Mon, 21 Apr 2008 21:14:21 -0400 (EDT)
From:	Steven Rostedt <rostedt@...dmis.org>
To:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
cc:	linux-kernel@...r.kernel.org, mingo@...e.hu,
	akpm@...ux-foundation.org, dwalker@...sta.com,
	sdietrich@...ell.com, dvhltc@...ibm.com, niv@...ibm.com
Subject: Re: [PATCH] SELinux fixups needed for preemptable RCU from -rt



On Mon, 21 Apr 2008, Paul E. McKenney wrote:

> On Mon, Apr 21, 2008 at 08:54:51PM -0400, Steven Rostedt wrote:
> >
> > On Mon, 21 Apr 2008, Paul E. McKenney wrote:
> > > @@ -807,8 +810,14 @@ int avc_ss_reset(u32 seqno)
> > >
> > >  	for (i = 0; i < AVC_CACHE_SLOTS; i++) {
> > >  		spin_lock_irqsave(&avc_cache.slots_lock[i], flag);
> > > +		/*
> > > +		 * On -rt the outer spinlock does not prevent RCU
> > > +		 * from being performed:
> >
> > I would suggest to change this comment to "With preemptible RCU" from
> > "On -rt".
>
> Good point...  How about the following?

Acked-by: Steven Rostedt <srostedt@...hat.com>

-- Steve

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