From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: riel@redhat.com
Cc: fweisbec@gmail.com, luto@amacapital.net, will.deacon@arm.com,
linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
mtosatti@redhat.com, borntraeger@de.ibm.com,
lcapitulino@redhat.com, pbonzini@redhat.com
Subject: Re: [PATCH 2/5] nohz: add stub context_tracking_is_enabled
Date: Tue, 10 Feb 2015 13:29:31 -0800 [thread overview]
Message-ID: <20150210212930.GY4166@linux.vnet.ibm.com> (raw)
In-Reply-To: <1423600074-2907-3-git-send-email-riel@redhat.com>
On Tue, Feb 10, 2015 at 03:27:51PM -0500, riel@redhat.com wrote:
> From: Rik van Riel <riel@redhat.com>
>
> With code elsewhere doing something conditional on whether or not
> context tracking is enabled, we want a stub function that tells us
> context tracking is not enabled, when CONFIG_CONTEXT_TRACKING is
> not set.
>
> Signed-off-by: Rik van Riel <riel@redhat.com>
Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
> ---
> include/linux/context_tracking_state.h | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/include/linux/context_tracking_state.h b/include/linux/context_tracking_state.h
> index 97a81225d037..72ab10fe1e46 100644
> --- a/include/linux/context_tracking_state.h
> +++ b/include/linux/context_tracking_state.h
> @@ -39,6 +39,8 @@ static inline bool context_tracking_in_user(void)
> #else
> static inline bool context_tracking_in_user(void) { return false; }
> static inline bool context_tracking_active(void) { return false; }
> +static inline bool context_tracking_is_enabled(void) { return false; }
> +static inline bool context_tracking_cpu_is_enabled(void) { return false; }
> #endif /* CONFIG_CONTEXT_TRACKING */
>
> #endif
> --
> 1.9.3
>
next prev parent reply other threads:[~2015-02-10 21:29 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-10 20:27 [PATCH -v5 0/5] rcu,nohz,kvm: use RCU extended quiescent state when running KVM guest riel
2015-02-10 20:27 ` [PATCH 1/5] context_tracking: generalize context tracking APIs to support user and guest riel
2015-02-10 21:28 ` Paul E. McKenney
2015-02-10 20:27 ` [PATCH 2/5] nohz: add stub context_tracking_is_enabled riel
2015-02-10 21:29 ` Paul E. McKenney [this message]
2015-02-10 20:27 ` [PATCH 3/5] rcu,nohz: run vtime_user_enter/exit only when state == IN_USER riel
2015-02-10 21:35 ` Paul E. McKenney
2015-02-10 20:27 ` [PATCH 4/5] nohz,kvm: export context_tracking_user_enter/exit riel
2015-02-10 21:36 ` Paul E. McKenney
2015-02-10 20:27 ` [PATCH 5/5] kvm,rcu,nohz: use RCU extended quiescent state when running KVM guest riel
2015-02-10 21:42 ` Paul E. McKenney
2015-02-11 19:43 ` [PATCH -v5 6/5] context_tracking: fix exception_enter when already in IN_KERNEL Rik van Riel
2015-02-11 21:27 ` Paul E. McKenney
2015-02-12 15:42 ` Frederic Weisbecker
2015-02-12 15:47 ` Rik van Riel
2015-02-12 17:00 ` Frederic Weisbecker
2015-02-12 17:48 ` Rik van Riel
2015-02-12 17:09 ` [PATCH -v5 0/5] rcu,nohz,kvm: use RCU extended quiescent state when running KVM guest Frederic Weisbecker
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