linux-kernel - Re: [PATCH 01/21] workqueue: fix race condition in schedule_on_each

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Message-ID: <4B02CC4B.9060800@kernel.org>
Date:	Wed, 18 Nov 2009 01:16:11 +0900
From:	Tejun Heo <tj@...nel.org>
To:	Avi Kivity <avi@...hat.com>
CC:	Frederic Weisbecker <fweisbec@...il.com>,
	linux-kernel@...r.kernel.org, jeff@...zik.org, mingo@...e.hu,
	akpm@...ux-foundation.org, jens.axboe@...cle.com,
	rusty@...tcorp.com.au, cl@...ux-foundation.org,
	dhowells@...hat.com, arjan@...ux.intel.com,
	torvalds@...ux-foundation.org, peterz@...radead.org,
	andi@...stfloor.org, Andi Kleen <ak@...ux.intel.com>,
	Oleg Nesterov <oleg@...hat.com>
Subject: Re: [PATCH 01/21] workqueue: fix race condition in	schedule_on_each_cpu()

11/17/2009 04:04 PM, Avi Kivity wrote:
>> Shouldn't this patch go to .32 ?
>> This looks like an important fix.
> 
> Is anything using preeempt notifier on affected architectures?

Checking... yeap, ia64 has both __ARCH_WANT_UNLOCKED_CTXSW and KVM.

-- 
tejun
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