On Mon, 11 Jun 2012, kosaki.motohiro@gmail.com wrote:

From: KOSAKI Motohiro <redacted>

commit 05f144a0d5 "mm: mempolicy: Let vma_merge and vma_split handle
vma->vm_policy linkages" removed a vma->vm_policy updates. But it is
a primary purpose of mbind_range(). Now, mbind(2) is no-op in several
case unintentionally. It is not ideal fix. This patch reverts it.

Rewritten changelog:

commit 05f144a0d5 "mm: mempolicy: Let vma_merge and vma_split handle
vma->vm_policy linkages" removed policy_vma() but the function is
needed in this patchset.


(It is not clear to me what the last sentences mean. AFAICT the code for
policy_vma() still exists in another function prior to this patch)


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