Re: [PATCH 06/33] lmb: Add lmb_reserve_area/lmb_free_area

[Michael Ellerman]

On Tue, 2010-03-30 at 19:16 -0700, Yinghai Lu wrote:
> They will check if the region array is big enough.
> 
> __check_and_double_region_array will try to double the region array if that
> array spare slots is not big enough.  Old array will be copied to new array.
> 

> diff --git a/include/linux/lmb.h b/include/linux/lmb.h
> index 4cf2f3b..598662f 100644
> --- a/include/linux/lmb.h
> +++ b/include/linux/lmb.h
> @@ -83,6 +84,9 @@ lmb_end_pfn(struct lmb_region *type, unsigned long region_nr)
>  	       lmb_size_pages(type, region_nr);
>  }
>  
> +void lmb_reserve_area(u64 start, u64 end, char *name);
> +void lmb_free_area(u64 start, u64 end);
> +void lmb_add_memory(u64 start, u64 end);

vs

extern long lmb_reserve(u64 base, u64 size);
extern long lmb_free(u64 base, u64 size);   
extern long lmb_add(u64 base, u64 size);                                    
                         

Can you tell which ones handle dynamically expanding the region array?

You're _still_ adding a new API, which I still think is stupid.

cheers

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