Re: [RFC PATCH 0/3 V1] mm: add new migrate type and online_movable for hotplug

[Minchan Kim <minchan@kernel.org>]

Hello,

I am not sure when I can review this series by urgent other works.
At a glance, it seems to attract me.
But unfortunately, when I read description in cover-letter, I can't
find "What's the problem?".
If you provide that, it could help too many your Ccing people who can
judge  "whether I dive into code or not"

Thanks!

Side-Note: What's the "--" of email addresses?

On Wed, Jul 4, 2012 at 4:26 PM, Lai Jiangshan <laijs@cn.fujitsu.com> wrote:
> The 1st patch fixes the allocation of CMA and prepares for movable-like types.
>
> The 2nd patch add a new migrate type which stands for the movable types which
> pages will not be changed to the other type.
>
> I chose the name MIGRATE_HOTREMOVE from MIGRATE_HOTREMOVE
> and MIGRATE_MOVABLE_STABLE, it just because the first usecase of this new type
> is for hotremove.
>
> The 3th path introduces online_movable. When a memoryblock is onlined
> by "online_movable", the kernel will not have directly reference to the page
> of the memoryblock, thus we can remove that memory any time when needed.
>
> Different from ZONE_MOVABLE: it can be used for any given memroyblock.
>
> Lai Jiangshan (3):
>   use __rmqueue_smallest when borrow memory from MIGRATE_CMA
>   add MIGRATE_HOTREMOVE type
>   add online_movable
>
>  arch/tile/mm/init.c            |    2 +-
>  drivers/acpi/acpi_memhotplug.c |    3 +-
>  drivers/base/memory.c          |   24 +++++++----
>  include/linux/memory.h         |    1 +
>  include/linux/memory_hotplug.h |    4 +-
>  include/linux/mmzone.h         |   37 +++++++++++++++++
>  include/linux/page-isolation.h |    2 +-
>  mm/compaction.c                |    6 +-
>  mm/memory-failure.c            |    8 +++-
>  mm/memory_hotplug.c            |   36 +++++++++++++---
>  mm/page_alloc.c                |   86 ++++++++++++++++-----------------------
>  mm/vmstat.c                    |    3 +
>  12 files changed, 136 insertions(+), 76 deletions(-)
>
> --
> 1.7.4.4
>



-- 
Kind regards,
Minchan Kim

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