[PATCH] Fix do_mlock so page alignment is to hugepage boundries when needed

[Christoph Lameter]

On Wed, 17 May 2006, Eric Paris wrote:

> --- linux-2.6.16.14/include/asm-sparc64/page.h.paris
> +++ linux-2.6.16.14/include/asm-sparc64/page.h
> @@ -104,6 +104,8 @@ typedef unsigned long pgprot_t;
>  #define HUGETLB_PAGE_ORDER	(HPAGE_SHIFT - PAGE_SHIFT)
>  #define ARCH_HAS_SETCLEAR_HUGE_PTE
>  #define ARCH_HAS_HUGETLB_PREFAULT_HOOK
> +/* to align the pointer to the (next) page boundary when dealing with hugepages*/
> +#define HPAGE_ALIGN(addr)       (((addr)+HPAGE_SIZE-1)&HPAGE_MASK)
>  #endif

Could you put the definition of HPAGE_ALIGN into include/linux/hugetlb.h 
to avoid modifying all the page.h files?