linux-kernel - Re: [GIT PULL] last minute percpu fix for v3.15-rc8

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Message-ID: <alpine.DEB.2.10.1406041215180.12469@gentwo.org>
Date:	Wed, 4 Jun 2014 12:16:56 -0500 (CDT)
From:	Christoph Lameter <cl@...two.org>
To:	Tejun Heo <tj@...nel.org>
cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, Kent Overstreet <kmo@...erainc.com>,
	Sebastian Ott <sebott@...ux.vnet.ibm.com>,
	Heiko Carstens <heiko.carstens@...ibm.com>
Subject: Re: [GIT PULL] last minute percpu fix for v3.15-rc8

On Wed, 4 Jun 2014, Tejun Heo wrote:

> I'll ping Christoph whether __this_cpu_*() ops can be better annotated
> so that it can trigger lockdep warning when used from multiple
> contexts.

We just added checks that verify the proper preemption mode for
__this_cpu operations. That did not catch it?

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