Re: [PATCH 1/3] m32r: Use generic PREEMPT config

[Hirokazu Takata]

From: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Subject: [PATCH 1/3] m32r: Use generic PREEMPT config
Date: Tue, 05 Jul 2011 18:04:26 +0200
> Use the generic preempt config definition in m32r instead of
> using a custom one.
> 
> This also makes it handle the new CONFIG_PREEMPT_COUNT that
> need to be selected by CONFIG_PREEMPT.
> 
> Without that it breaks
> 
>   kernel/sched.c: In function 'preempt_schedule':
>   kernel/sched.c:4364: error: implicit declaration of function 'add_preempt_count_notrace'
>   kernel/sched.c:4366: error: implicit declaration of function 'sub_preempt_count_notrace'
> 
> Reported-by: Ingo Molnar <mingo@xxxxxxx>
> Signed-off-by: Frederic Weisbecker <fweisbec@xxxxxxxxx>
> Cc: Hirokazu Takata <takata@xxxxxxxxxxxxxx>

Acked-by: Hirokazu Takata <takata@xxxxxxxxxxxxxx>

Thank you.

> ---
>  arch/m32r/Kconfig |   12 +-----------
>  1 files changed, 1 insertions(+), 11 deletions(-)
> 
> diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
> index 85b44e8..b92b944 100644
> --- a/arch/m32r/Kconfig
> +++ b/arch/m32r/Kconfig
> @@ -268,17 +268,7 @@ config SCHED_OMIT_FRAME_POINTER
>          bool
>          default y
>  
> -config PREEMPT
> -	bool "Preemptible Kernel"
> -	help
> -	  This option reduces the latency of the kernel when reacting to
> -	  real-time or interactive events by allowing a low priority process to
> -	  be preempted even if it is in kernel mode executing a system call.
> -	  This allows applications to run more reliably even when the system is
> -	  under load.
> -
> -	  Say Y here if you are building a kernel for a desktop, embedded
> -	  or real-time system.  Say N if you are unsure.
> +source "kernel/Kconfig.preempt"
>  
>  config SMP
>  	bool "Symmetric multi-processing support"
> -- 
> 1.7.5.4
> 
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