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

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Message-ID: <47E814F2.6000208@ct.jp.nec.com>
Date:	Mon, 24 Mar 2008 13:54:10 -0700
From:	Hiroshi Shimamoto <h-shimamoto@...jp.nec.com>
To:	Steven Rostedt <rostedt@...dmis.org>
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

Steven Rostedt wrote:
> 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 ;-)

thanks for taking time.

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

Sounds smarter.

> 
> Thanks,
> 
> -- Steve
> 
> P.S. I'm hoping to get -rt4 out today.

I'll test it on my box when released.

thanks,
Hiroshi Shimamoto
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