Re: + memory-hotplug-compile-fix.patch added to -mm tree

[Dave Hansen <haveblue@us.ibm.com>]

On Fri, 2006-03-03 at 23:52 -0800, akpm@osdl.org wrote:
> diff -puN include/linux/memory_hotplug.h~memory-hotplug-compile-fix include/linux/memory_hotplug.h
> --- devel/include/linux/memory_hotplug.h~memory-hotplug-compile-fix     2006-03-03 23:50:50.000000000 -0800
> +++ devel-akpm/include/linux/memory_hotplug.h   2006-03-03 23:51:45.000000000 -0800
> @@ -6,6 +6,10 @@
>  #include <linux/mmzone.h>
>  #include <linux/notifier.h>
>  
> +struct page;
> +struct zone;
> +struct pglist_data;

There are places in that file where we dereference both zone and pgdat
struct pointers.  struct page, on the other hand, is only a function
argument.  So, the predeclaration should be fine for pages.  But, it
probably won't do any good for zones or pgdats.  

-- Dave

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