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Re: [PATCH] mm: mempolicy: skip non-migratable VMAs when setting MPOL_MF_LAZY

From Rik van Riel <riel@redhat.com>
Newsgroups linux.kernel
Subject Re: [PATCH] mm: mempolicy: skip non-migratable VMAs when setting MPOL_MF_LAZY
Date 2016-01-06 16:40 +0100
Message-ID <qNYlQ-326-31@gated-at.bofh.it> (permalink)
References <qNXg6-2iB-11@gated-at.bofh.it>
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On 01/06/2016 09:18 AM, Liang Chen wrote:
> MPOL_MF_LAZY is not visible from userspace since 'commit
> a720094ded8c ("mm: mempolicy: Hide MPOL_NOOP and MPOL_MF_LAZY from
> userspace for now")' , but it should still skip non-migratable
> VMAs.

The changelog could use a better description of exactly
what the issue is, and why calling change_prot_numa
on a non-migratable VMA is causing problems.

> Signed-off-by: Liang Chen <liangchen.linux@gmail.com> 
> Signed-off-by: Gavin Guo <gavin.guo@canonical.com>

For the code itself:

Acked-by: Rik van Riel <riel@redhat.com>

Please resubmit with a better changelog.
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[PATCH] mm: mempolicy: skip non-migratable VMAs when setting MPOL_MF_LAZY Liang Chen <liangchen.linux@gmail.com> - 2016-01-06 15:30 +0100
  Re: [PATCH] mm: mempolicy: skip non-migratable VMAs when setting  MPOL_MF_LAZY Rik van Riel <riel@redhat.com> - 2016-01-06 16:40 +0100

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