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SubjectRe: [PATCH 2/6] mempolicy: Kill all mempolicy sharing
On Wed, 30 May 2012, wrote:

> refcount will be decreased even though was not increased whenever alloc_page_vma()
> is called. As you know, mere mbind(MPOL_MF_MOVE) calls alloc_page_vma().

Most of these issues are about memory migration and shared memory. If we
exempt shared memory from memory migration (after all that shared memory
has its own distinct memory policies already!) then a lot of these issues
wont arise.

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