linux-kernel - Re: [PATCH 4/4] kvm,rcu: use RCU extended quiescent state when running KVM guest

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Date:	Thu, 05 Feb 2015 15:19:13 -0500
From:	Rik van Riel <riel@...hat.com>
To:	paulmck@...ux.vnet.ibm.com
CC:	Christian Borntraeger <borntraeger@...ibm.com>,
	kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
	mtosatti@...hat.com, mingo@...nel.org, ak@...ux.intel.com,
	oleg@...hat.com, masami.hiramatsu.pt@...achi.com,
	fweisbec@...il.com, lcapitulino@...hat.com, pbonzini@...hat.com
Subject: Re: [PATCH 4/4] kvm,rcu: use RCU extended quiescent state when running
 KVM guest

On 02/05/2015 02:27 PM, Paul E. McKenney wrote:
> On Thu, Feb 05, 2015 at 02:02:35PM -0500, Rik van Riel wrote:

>> Looking at context_tracking.h, I see the
>> function context_tracking_cpu_is_enabled().
>>
>> That looks like it should do the right thing
>> in this case.
> 
> Right you are -- that same check is used to guard the
> context_tracking_user_enter() function's call to rcu_user_enter().

My test suggests it is working.

v2 incoming :)

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