linux-kernel - Re: [RFC PATCH 1/3] kvm: keep track of which task is running a KVM vcpu

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Message-ID: <20101203121746.GE27994@linux.vnet.ibm.com>
Date:	Fri, 3 Dec 2010 17:47:46 +0530
From:	Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>
To:	Rik van Riel <riel@...hat.com>
Cc:	kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
	Avi Kiviti <avi@...hat.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Ingo Molnar <mingo@...e.hu>,
	Anthony Liguori <aliguori@...ux.vnet.ibm.com>
Subject: Re: [RFC PATCH 1/3] kvm: keep track of which task is running a KVM
 vcpu

On Thu, Dec 02, 2010 at 02:43:24PM -0500, Rik van Riel wrote:
>  	mutex_lock(&vcpu->mutex);
> +	vcpu->task = current;

Shouldn't we grab reference to current task_struct before storing a pointer to 
it?

- vatsa
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