Re: [PATCH 1/6] Revert "mm: mempolicy: Let vma_merge and vma_splithandle vma->vm_policy linkages"

[Christoph Lameter]

On Wed, 30 May 2012, KOSAKI Motohiro wrote:

> > You are dropping the nice comments by Mel that explain the refcounting.
>
> Because this is not strictly correct. 1) vma_merge() and split_vma() don't
> care mempolicy refcount. They only dup and drop it. 2) This mpol_get() is
> for vma attaching. This function don't need to care sp_node internal.

Ok then say so in the changelog.


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