[RFC PATCH 1/3] mm: Export alloc_migrate_huge_page

[David Gibson]

On Mon, Sep 03, 2018 at 10:07:31PM +0530, Aneesh Kumar K.V wrote:
> We want to use this to support customized huge page migration.
> 
> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar at linux.ibm.com>

Reviewed-by: David Gibson <david at gibson.dropbear.id.au>

> ---
>  include/linux/hugetlb.h | 2 ++
>  mm/hugetlb.c            | 4 ++--
>  2 files changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
> index c39d9170a8a0..98c9c6dc308c 100644
> --- a/include/linux/hugetlb.h
> +++ b/include/linux/hugetlb.h
> @@ -357,6 +357,8 @@ struct page *alloc_huge_page_nodemask(struct hstate *h, int preferred_nid,
>  				nodemask_t *nmask);
>  struct page *alloc_huge_page_vma(struct hstate *h, struct vm_area_struct *vma,
>  				unsigned long address);
> +struct page *alloc_migrate_huge_page(struct hstate *h, gfp_t gfp_mask,
> +				     int nid, nodemask_t *nmask);
>  int huge_add_to_page_cache(struct page *page, struct address_space *mapping,
>  			pgoff_t idx);
>  
> diff --git a/mm/hugetlb.c b/mm/hugetlb.c
> index 47566bb0b4b1..88881b3f8628 100644
> --- a/mm/hugetlb.c
> +++ b/mm/hugetlb.c
> @@ -1586,8 +1586,8 @@ static struct page *alloc_surplus_huge_page(struct hstate *h, gfp_t gfp_mask,
>  	return page;
>  }
>  
> -static struct page *alloc_migrate_huge_page(struct hstate *h, gfp_t gfp_mask,
> -		int nid, nodemask_t *nmask)
> +struct page *alloc_migrate_huge_page(struct hstate *h, gfp_t gfp_mask,
> +				     int nid, nodemask_t *nmask)
>  {
>  	struct page *page;
>  

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson
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