From: Thomas Gleixner <tglx@linutronix.de>
To: Michael Bohan <mbohan@codeaurora.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
linux-arm-msm@vger.kernel.org,
Peter Zijlstra <peterz@infradead.org>
Subject: Re: [PATCH 2/2] hrtimer: Prevent enqueue of hrtimer on dead CPU
Date: Thu, 18 Apr 2013 11:44:03 +0200 (CEST) [thread overview]
Message-ID: <alpine.LFD.2.02.1304181141170.21884@ionos> (raw)
In-Reply-To: <1365628068-32738-3-git-send-email-mbohan@codeaurora.org>
On Wed, 10 Apr 2013, Michael Bohan wrote:
> When switching the hrtimer cpu_base, we briefly allow for
> preemption to become enabled by unlocking the cpu_base lock.
No, interrupts still stay disabled and there is no way to preempt
here. Can you please explain, what you are trying to do and what makes
you think there is a problem in that code?
Thanks,
tglx
prev parent reply other threads:[~2013-04-18 9:44 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-10 21:07 [PATCH 0/2] hrtimer preemption bug fixes Michael Bohan
2013-04-10 21:07 ` [PATCH 1/2] hrtimer: Consider preemption when migrating hrtimer cpu_bases Michael Bohan
2013-04-18 9:40 ` Thomas Gleixner
2013-04-19 1:37 ` Michael Bohan
2013-04-10 21:07 ` [PATCH 2/2] hrtimer: Prevent enqueue of hrtimer on dead CPU Michael Bohan
2013-04-18 9:44 ` Thomas Gleixner [this message]
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