linux-kernel - Re: [PATCH -rt] rt-slab: fix cpu inconsistency case

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Message-ID: <Pine.LNX.4.58.0803241630290.9884@gandalf.stny.rr.com>
Date:	Mon, 24 Mar 2008 16:35:23 -0400 (EDT)
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Hiroshi Shimamoto <h-shimamoto@...jp.nec.com>
cc:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	linux-kernel@...r.kernel.org, linux-rt-users@...r.kernel.org
Subject: Re: [PATCH -rt] rt-slab: fix cpu inconsistency case


On Fri, 21 Mar 2008, Hiroshi Shimamoto wrote:
>
> >
> > Is this a bug in mainline? The !PREEMPT_RT case should be as close to
> > mainline as possible, with no actual changes in object code. If this is
> > not the case, then we need to fix that.
>
> No, this issue is in -rt only.
>

Hi Hiroshi,

Thanks again for reporting this. I took a deeper look into this today and
came to the conclusion that we need to get rid of both
slab_irq_disable_nort and slab_irq_disable_rt, and simply use
slab_irq_disable ;-)

This is what you patch indirectly does. I'll write up another patch to fix
this.

Thanks,

-- Steve

P.S. I'm hoping to get -rt4 out today.
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