Re: [PATCH] reduce sizeof(percpu_data) and removes dependance against NR_CPUS

Jan Engelhardt <[email protected]> wrote:
>
> 
> 
> --- linux-2.6.15/include/linux/percpu.h	2006-01-03 04:21:10.000000000 +0100
> +++ linux-2.6.15-edum/include/linux/percpu.h	2006-01-05 14:45:48.000000000 +0100
> @@ -18,8 +18,7 @@
>  #ifdef CONFIG_SMP
>  
>  struct percpu_data {
> -	void *ptrs[NR_CPUS];
> -	void *blkp;
> +	void *ptrs[1]; /* real size depends on highest_possible_processor_id() */
>  };
>  
>  /* 
> 
> 
> I think we can use *ptrs[0] here.
> 

We can.  In fact with the gcc-2.95 abandonment I think we can use ptrs[].

But it doesn't matter.
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References:
- Re: [PATCH] Debug shared irqs.
  - From: Andrew Morton <[email protected]>
- [PATCH] reduce sizeof(percpu_data) and removes dependance against NR_CPUS
  - From: Eric Dumazet <[email protected]>
- Re: [PATCH] reduce sizeof(percpu_data) and removes dependance against NR_CPUS
  - From: Jan Engelhardt <[email protected]>

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