On Fri,  9 Aug 2013 01:21:33 -0400 Naoya Horiguchi <n-horigu...@ah.jp.nec.com> 
wrote:

> Here is the 5th version of hugepage migration patchset.
> Changes in this version are as follows:
>  - removed putback_active_hugepages() as a cleanup (1/9)
>  - added code to check movability of a given hugepage (8/9)
>  - set GFP MOVABLE flag depending on the movability of hugepage (9/9).
> 
> I feel that 8/9 and 9/9 contain some new things, so need reviews on them.
> 
> TODOs: (likely to be done after this work)
>  - split page table lock for pmd/pud based hugepage (maybe applicable to thp)
>  - improve alloc_migrate_target (especially in node choice)
>  - using page walker in check_range

This is a pretty large and complex patchset.  I skimmed the patches
(and have one trivial comment) then queued them up for a bit of
testing.  I've asked Mel if he can find time to review the changes
(please).

btw, it would be helpful if this [patch 0/n] had a decent overview of
the patch series - what are the objectives, how were they achieved,
what value they have to our users, testing results, etc.

mm-prepare-to-remove-proc-sys-vm-hugepages_treat_as_movable.patch had a
conflict with
http://ozlabs.org/~akpm/mmots/broken-out/mm-hugetlb-move-up-the-code-which-check-availability-of-free-huge-page.patch
which I resolved in the obvious manner.  Please check that from a
runtime perspective.


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