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From: Rik van Riel <riel@redhat.com>
To: paulmck@linux.vnet.ibm.com
Cc: Christian Borntraeger <borntraeger@de.ibm.com>,
	kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
	mtosatti@redhat.com, mingo@kernel.org, ak@linux.intel.com,
	oleg@redhat.com, masami.hiramatsu.pt@hitachi.com,
	fweisbec@gmail.com, lcapitulino@redhat.com, pbonzini@redhat.com
Subject: Re: [PATCH 4/4] kvm,rcu: use RCU extended quiescent state when running KVM guest
Date: Thu, 05 Feb 2015 15:19:13 -0500	[thread overview]
Message-ID: <54D3D041.7090408@redhat.com> (raw)
In-Reply-To: <20150205192704.GM5370@linux.vnet.ibm.com>

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 :)


      reply	other threads:[~2015-02-05 20:19 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-05 16:35 [PATCH 0/4] rcu,nohz,kvm: " riel
2015-02-05 16:35 ` [PATCH 1/4] rcu,nohz: add state parameter to context_tracking_user_enter/exit riel
2015-02-05 16:35 ` [PATCH 2/4] rcu,nohz: run vtime_user_enter/exit only when state == IN_USER riel
2015-02-05 16:35 ` [PATCH 3/4] nohz,kvm: export context_tracking_user_enter/exit riel
2015-02-05 16:35 ` [PATCH 4/4] kvm,rcu: use RCU extended quiescent state when running KVM guest riel
2015-02-05 16:44   ` Christian Borntraeger
2015-02-05 16:52     ` Rik van Riel
2015-02-05 17:50       ` Paul E. McKenney
2015-02-05 18:09         ` Rik van Riel
2015-02-05 18:56           ` Paul E. McKenney
2015-02-05 18:59             ` Rik van Riel
2015-02-05 19:02             ` Rik van Riel
2015-02-05 19:27               ` Paul E. McKenney
2015-02-05 20:19                 ` Rik van Riel [this message]

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