Re: [PATCH 2/5] Fix mismatched variable in rcutree_trace.c

From: Thomas Gleixner
Date: Tue Jun 07 2011 - 18:42:26 EST




On Tue, 7 Jun 2011, Andi Kleen wrote:

> From: Andi Kleen <ak@xxxxxxxxxxxxxxx>
>
> rcutree.c defines rcu_cpu_kthread_cpu as int, not unsigned int,
> so the extern has to follow that.
>
> Cc: paulmck@xxxxxxxxxxxxxxxxxx
> Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>
> ---
> kernel/rcutree_trace.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/kernel/rcutree_trace.c b/kernel/rcutree_trace.c
> index 9678cc3..91c56e5 100644
> --- a/kernel/rcutree_trace.c
> +++ b/kernel/rcutree_trace.c
> @@ -47,7 +47,7 @@
> #include "rcutree.h"
>
> DECLARE_PER_CPU(unsigned int, rcu_cpu_kthread_status);
> -DECLARE_PER_CPU(unsigned int, rcu_cpu_kthread_cpu);
> +DECLARE_PER_CPU(int, rcu_cpu_kthread_cpu);

Can we rather fix the DEFINE to use unsigned int. Signed cpu numbers
are pointless in that context, right ?

> DECLARE_PER_CPU(unsigned int, rcu_cpu_kthread_loops);
> DECLARE_PER_CPU(char, rcu_cpu_has_work);
>
> --
> 1.7.4.4
>
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