[PATCH] powerpc/hugetlb: Add ABI defines for MAP_HUGE_16MB and MAP_HUGE_16GB

[Aneesh Kumar K.V]

On Tuesday 04 April 2017 11:33 AM, Anshuman Khandual wrote:
> This just adds user space exported ABI definitions for both 16MB and
> 16GB non default huge page sizes to be used with mmap() system call.
>
> Signed-off-by: Anshuman Khandual <khandual at linux.vnet.ibm.com>
> ---
> These defined values will be used along with MAP_HUGETLB while calling
> mmap() system call if the desired HugeTLB page size is not the default
> one. Follows similar definitions present in x86.
>
> arch/x86/include/uapi/asm/mman.h:#define MAP_HUGE_2MB    (21 << MAP_HUGE_SHIFT)
> arch/x86/include/uapi/asm/mman.h:#define MAP_HUGE_1GB    (30 << MAP_HUGE_SHIFT)
>
>  arch/powerpc/include/uapi/asm/mman.h | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/arch/powerpc/include/uapi/asm/mman.h b/arch/powerpc/include/uapi/asm/mman.h
> index 03c06ba..e78980b 100644
> --- a/arch/powerpc/include/uapi/asm/mman.h
> +++ b/arch/powerpc/include/uapi/asm/mman.h
> @@ -29,4 +29,7 @@
>  #define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
>  #define MAP_HUGETLB	0x40000		/* create a huge page mapping */
>
> +#define MAP_HUGE_16MB	(24 << MAP_HUGE_SHIFT)	/* 16MB HugeTLB Page */
> +#define MAP_HUGE_16GB	(34 << MAP_HUGE_SHIFT)	/* 16GB HugeTLB Page */
> +
>  #endif /* _UAPI_ASM_POWERPC_MMAN_H */
>

I am doing a similar patch as part of 1G and hugetlb migration series. 
Can you add 2M and 1G #defines also so that i can drop the patch from my 
series and pick this ?

-aneesh