From: Will Deacon <will.deacon@arm.com>
To: "riel@redhat.com" <riel@redhat.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: Tue, 10 Feb 2015 01:15:40 +0000 [thread overview]
Message-ID: <20150210011540.GA17955@arm.com> (raw)
In-Reply-To: <1423497884-21615-1-git-send-email-riel@redhat.com>
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.
Will
next prev parent reply other threads:[~2015-02-10 1:15 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 ` Will Deacon [this message]
2015-02-10 1:22 ` [PATCH -v3 0/6] rcu,nohz,kvm: use RCU extended quiescent state when running KVM guest Rik van Riel
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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