Re: [PATCH 6/8] migrate: remove VM_HUGETLB from vma flag check in vma_migratable()

From: Hillf Danton
Date: Fri Jul 19 2013 - 01:26:22 EST


On Fri, Jul 19, 2013 at 5:34 AM, Naoya Horiguchi
<n-horiguchi@xxxxxxxxxxxxx> wrote:
> This patch enables hugepage migration from migrate_pages(2),
> move_pages(2), and mbind(2).
>
> Signed-off-by: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
> ---

Acked-by: Hillf Danton <dhillf@xxxxxxxxx>

> include/linux/mempolicy.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git v3.11-rc1.orig/include/linux/mempolicy.h v3.11-rc1/include/linux/mempolicy.h
> index 0d7df39..2e475b5 100644
> --- v3.11-rc1.orig/include/linux/mempolicy.h
> +++ v3.11-rc1/include/linux/mempolicy.h
> @@ -173,7 +173,7 @@ extern int mpol_to_str(char *buffer, int maxlen, struct mempolicy *pol);
> /* Check if a vma is migratable */
> static inline int vma_migratable(struct vm_area_struct *vma)
> {
> - if (vma->vm_flags & (VM_IO | VM_HUGETLB | VM_PFNMAP))
> + if (vma->vm_flags & (VM_IO | VM_PFNMAP))
> return 0;
> /*
> * Migration allocates pages in the highest zone. If we cannot
> --
> 1.8.3.1
>
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