From: Peter Zijlstra <peterz@infradead.org>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Richard Weinberger <rw@linutronix.de>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH -rt] printk: Disable migration instead of preemption
Date: Mon, 12 Dec 2011 17:47:19 +0100 [thread overview]
Message-ID: <1323708439.21400.6.camel@twins> (raw)
In-Reply-To: <alpine.LFD.2.02.1112121734580.3020@ionos>
On Mon, 2011-12-12 at 17:35 +0100, Thomas Gleixner wrote:
>
> The point is that we drop that lock further down and on RT we also
> reenable interrupts, so we have to prevent that we get migrated away.
>
Oh ok. I missed -rt reenabling interrupts somewhere down there.
Do note that these preempt_disable/enable calls are gone upstream.
prev parent reply other threads:[~2011-12-12 16:48 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-12 13:35 Richard Weinberger
2011-12-12 15:25 ` Peter Zijlstra
2011-12-12 16:35 ` Thomas Gleixner
2011-12-12 16:47 ` Peter Zijlstra [this message]
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