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Message-ID: <20090122071705.GC6290@linux.vnet.ibm.com>
Date: Wed, 21 Jan 2009 23:17:05 -0800
From: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To: Lai Jiangshan <laijs@...fujitsu.com>
Cc: Ingo Molnar <mingo@...e.hu>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] rcu: remove duplicate CONFIG_RCU_CPU_STALL_DETECTOR
On Thu, Jan 22, 2009 at 09:46:38AM +0800, Lai Jiangshan wrote:
>
> Impact: remove the old CONFIG_RCU_CPU_STALL_DETECTOR
>
> tree_rcu introduce CONFIG_RCU_CPU_STALL_DETECTOR again.
>
> These two are the same exactly except:
> the old one "depends on CLASSIC_RCU"
> the new one "depends on CLASSIC_RCU || TREE_RCU"
>
> This patch remove the old one.
Good eyes!
However, Jiri Kosina has already queued this up for the trivial tree:
http://lkml.org/lkml/2009/1/15/218
Thanx, Paul
> Signed-off-by: Lai Jiangshan <laijs@...fujitsu.com>
> ---
> diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
> index 4c9ae60..e770e85 100644
> --- a/lib/Kconfig.debug
> +++ b/lib/Kconfig.debug
> @@ -633,19 +633,6 @@ config RCU_TORTURE_TEST_RUNNABLE
>
> config RCU_CPU_STALL_DETECTOR
> bool "Check for stalled CPUs delaying RCU grace periods"
> - depends on CLASSIC_RCU
> - default n
> - help
> - This option causes RCU to printk information on which
> - CPUs are delaying the current grace period, but only when
> - the grace period extends for excessive time periods.
> -
> - Say Y if you want RCU to perform such checks.
> -
> - Say N if you are unsure.
> -
> -config RCU_CPU_STALL_DETECTOR
> - bool "Check for stalled CPUs delaying RCU grace periods"
> depends on CLASSIC_RCU || TREE_RCU
> default n
> help
>
>
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