From: Christoph Lameter <cl@gentwo.org>
To: Tejun Heo <tj@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
linux-kernel@vger.kernel.org, Kent Overstreet <kmo@daterainc.com>,
Sebastian Ott <sebott@linux.vnet.ibm.com>,
Heiko Carstens <heiko.carstens@de.ibm.com>
Subject: Re: [GIT PULL] last minute percpu fix for v3.15-rc8
Date: Wed, 4 Jun 2014 13:28:09 -0500 (CDT) [thread overview]
Message-ID: <alpine.DEB.2.10.1406041327240.12812@gentwo.org> (raw)
In-Reply-To: <20140604181214.GM5004@htj.dyndns.org>
On Wed, 4 Jun 2014, Tejun Heo wrote:
>
> Given that percpu operations can be performed on any allocated percpu
> area, it's a bit difficult to achieve tho. The only way I can think
> of is percpu allocator creating lockdep key for all the allocated
> offsets which isn't too enticing. :(
Hmmm.. Or an annotation for a percpu variable saying that its being used
from an interrupt context.
prev parent reply other threads:[~2014-06-04 18:28 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-04 16:37 Tejun Heo
2014-06-04 16:59 ` Tejun Heo
2014-06-04 17:06 ` Linus Torvalds
2014-06-04 17:07 ` Tejun Heo
2014-06-04 17:16 ` Christoph Lameter
2014-06-04 18:12 ` Tejun Heo
2014-06-04 18:28 ` Christoph Lameter [this message]
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