From: Ingo Molnar <mingo@elte.hu>
To: Christoph Lameter <cl@linux.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>,
Andrew Morton <akpm@linux-foundation.org>,
Nick Piggin <nickpiggin@yahoo.com.au>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
thomas.pi@arcor.dea, Yuriy Lalym <ylalym@gmail.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
ltt-dev@lists.casi.polymtl.ca, Tejun Heo <tj@kernel.org>
Subject: Re: [PATCH] Fix dirty page accounting in redirty_page_for_writepage()
Date: Fri, 1 May 2009 21:59:41 +0200 [thread overview]
Message-ID: <20090501195941.GA28264@elte.hu> (raw)
In-Reply-To: <alpine.DEB.1.10.0904301406210.11923@qirst.com>
* Christoph Lameter <cl@linux.com> wrote:
> On Thu, 30 Apr 2009, Ingo Molnar wrote:
>
> > So we introduced preemption-safety in the v2 version of that commit.
> >
> > This non-atomicity will 1) either not matter 2) will be
> > irq-atomic by virtue of being within a critical section 3) can
> > be made atomic in the few remaining cases.
> >
> > And maybe, at most, introduce an opt-in API:
> > percpu_add_irqsafe().
>
> Plus percpu_add_preemptsafe().
Ok - that would be easy. Would you be interested in doing that and
would you be interested in resurrecting your old patches? They are
genuinely useful IMHO.
Ingo
next prev parent reply other threads:[~2009-05-01 20:01 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-29 23:25 [PATCH] Fix dirty page accounting in redirty_page_for_writepage() Mathieu Desnoyers
2009-04-29 23:56 ` Mathieu Desnoyers
2009-04-29 23:59 ` Andrew Morton
2009-04-30 2:34 ` Mathieu Desnoyers
2009-04-30 0:06 ` Linus Torvalds
2009-04-30 2:43 ` Mathieu Desnoyers
2009-04-30 6:21 ` Ingo Molnar
2009-04-30 6:33 ` [ltt-dev] " Mathieu Desnoyers
2009-04-30 6:50 ` Ingo Molnar
2009-04-30 13:38 ` Christoph Lameter
2009-04-30 14:10 ` Ingo Molnar
2009-04-30 14:12 ` Mathieu Desnoyers
2009-04-30 14:12 ` Christoph Lameter
2009-04-30 19:41 ` Mathieu Desnoyers
2009-04-30 20:17 ` Christoph Lameter
2009-04-30 21:17 ` Mathieu Desnoyers
2009-05-01 13:44 ` Christoph Lameter
2009-05-01 19:21 ` Mathieu Desnoyers
2009-05-01 19:31 ` Christoph Lameter
2009-05-01 20:24 ` Mathieu Desnoyers
2009-05-01 20:28 ` Christoph Lameter
2009-05-01 20:43 ` Mathieu Desnoyers
2009-05-01 20:42 ` Christoph Lameter
2009-05-01 21:19 ` Mathieu Desnoyers
2009-05-02 3:00 ` Christoph Lameter
2009-05-02 7:01 ` Mathieu Desnoyers
2009-05-02 21:01 ` Mathieu Desnoyers
2009-05-04 14:08 ` Christoph Lameter
2009-05-03 2:40 ` Tejun Heo
2009-05-04 14:10 ` Christoph Lameter
2009-04-30 13:22 ` Christoph Lameter
2009-04-30 13:38 ` Ingo Molnar
2009-04-30 13:40 ` Christoph Lameter
2009-04-30 14:14 ` Ingo Molnar
2009-04-30 14:15 ` Christoph Lameter
2009-04-30 14:38 ` Ingo Molnar
2009-04-30 14:45 ` Christoph Lameter
2009-04-30 15:01 ` Ingo Molnar
2009-04-30 15:25 ` Christoph Lameter
2009-04-30 15:42 ` Ingo Molnar
2009-04-30 15:44 ` Christoph Lameter
2009-04-30 16:06 ` Ingo Molnar
2009-04-30 16:11 ` Christoph Lameter
2009-04-30 16:16 ` Linus Torvalds
2009-04-30 17:23 ` Ingo Molnar
2009-04-30 18:07 ` Christoph Lameter
2009-05-01 19:59 ` Ingo Molnar [this message]
2009-05-01 20:35 ` Christoph Lameter
2009-05-01 21:07 ` Ingo Molnar
2009-05-02 3:06 ` Christoph Lameter
2009-05-02 9:03 ` Ingo Molnar
2009-05-04 14:48 ` Christoph Lameter
2009-04-30 16:13 ` Linus Torvalds
2009-04-30 15:54 ` Ingo Molnar
2009-04-30 16:00 ` Ingo Molnar
2009-04-30 16:08 ` Christoph Lameter
2009-04-30 13:50 ` Mathieu Desnoyers
2009-04-30 13:55 ` Christoph Lameter
2009-04-30 14:32 ` Ingo Molnar
2009-04-30 14:42 ` Christoph Lameter
2009-04-30 14:59 ` Ingo Molnar
2009-04-30 16:03 ` [ltt-dev] " Mathieu Desnoyers
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