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From: Rik van Riel <riel@redhat.com>
To: Will Deacon <will.deacon@arm.com>
Cc: "paulmck@linux.vnet.ibm.com" <paulmck@linux.vnet.ibm.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Catalin Marinas <Catalin.Marinas@arm.com>,
	"fweisbec@gmail.com" <fweisbec@gmail.com>,
	"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
	"mtosatti@redhat.com" <mtosatti@redhat.com>,
	"borntraeger@de.ibm.com" <borntraeger@de.ibm.com>,
	"mingo@kernel.org" <mingo@kernel.org>,
	"oleg@redhat.com" <oleg@redhat.com>,
	"lcapitulino@redhat.com" <lcapitulino@redhat.com>,
	"pbonzini@redhat.com" <pbonzini@redhat.com>
Subject: Re: [PATCH -v3 0/6] rcu,nohz,kvm: use RCU extended quiescent state when running KVM guest
Date: Mon, 09 Feb 2015 20:22:59 -0500	[thread overview]
Message-ID: <54D95D73.3040805@redhat.com> (raw)
In-Reply-To: <20150210011540.GA17955@arm.com>

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On 02/09/2015 08:15 PM, Will Deacon wrote:
> Hi Rik,
> 
> On Mon, Feb 09, 2015 at 04:04:38PM +0000, riel@redhat.com wrote:
>> Apologies to Catalin and Will for not fixing up ARM. I am not 
>> familiar with ARM assembly, and not sure how to pass a constant 
>> argument to a function from assembly code on ARM :)
> 
> It's a bit of a faff getting enum values into asm -- we actually
> have to duplicate the definitions using #defines to get at the
> constants. Perhaps it would be cleaner to leave
> context_tracking_user_{enter,exit} intact as C wrappers around
> context_tracking_{enter,exit} passing the appropriate constant?
> That way we don't actually need to change the arch code at all.

If Paul and Frederic have no objections, I would be happy to do that.

Paul, Frederic?

- -- 
All rights reversed
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  reply	other threads:[~2015-02-10  1:22 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-09 16:04 [PATCH -v3 0/6] rcu,nohz,kvm: use RCU extended quiescent state when running KVM guest riel
2015-02-09 16:04 ` [PATCH 1/6] rcu,nohz: add state parameter to context_tracking_user_enter/exit riel
2015-02-09 16:04 ` [PATCH 2/6] rcu,nohz: rename context_tracking_enter & _exit riel
2015-02-09 16:04 ` [PATCH 3/6] rcu,nohz: run vtime_user_enter/exit only when state == IN_USER riel
2015-02-09 16:04 ` [PATCH 4/6] nohz,kvm: export context_tracking_user_enter/exit riel
2015-02-09 17:05   ` Paolo Bonzini
2015-02-09 20:02     ` Rik van Riel
2015-02-09 16:04 ` [PATCH 5/6] kvm,rcu,nohz: use RCU extended quiescent state when running KVM guest riel
2015-02-09 16:04 ` [PATCH 6/6] nohz: add stub context_tracking_is_enabled riel
2015-02-09 17:07   ` Paolo Bonzini
2015-02-10  1:15 ` [PATCH -v3 0/6] rcu,nohz,kvm: use RCU extended quiescent state when running KVM guest Will Deacon
2015-02-10  1:22   ` Rik van Riel [this message]
2015-02-10  1:44     ` Frederic Weisbecker
2015-02-10  3:01       ` Paul E. McKenney
2015-02-10  3:03         ` Rik van Riel
2015-02-10  3:13           ` Paul E. McKenney

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