linux-kernel - Re: [PATCH v3 0/9] bugfix for memory hotplug

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Date:	Fri, 19 Oct 2012 17:06:10 +0900
From:	Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>
To:	<wency@...fujitsu.com>
CC:	<linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
	<rientjes@...gle.com>, <liuj97@...il.com>, <len.brown@...el.com>,
	<benh@...nel.crashing.org>, <paulus@...ba.org>,
	<minchan.kim@...il.com>, <akpm@...ux-foundation.org>,
	<kosaki.motohiro@...fujitsu.com>
Subject: Re: [PATCH v3 0/9] bugfix for memory hotplug

Hi Wen,

Some bug fix patches have been merged into linux-next.
So the patches confuse me.
Why did you send same patches again?

Thanks,
Yasuaki Ishimatsu

2012/10/19 15:46, wency@...fujitsu.com wrote:
> From: Wen Congyang <wency@...fujitsu.com>
> 
> Changes from v2 to v3:
>    Merge the bug fix from ishimatsu to this patchset(Patch 1-3)
>    Patch 3: split it from patch as it fixes another bug.
>    Patch 4: new patch, and fix bad-page state when hotadding a memory
>             device after hotremoving it. I forgot to post this patch in v2.
>    Patch 6: update it according to Dave Hansen's comment.
> 
> Changes from v1 to v2:
>    Patch 1: updated according to kosaki's suggestion
> 
>    Patch 2: new patch, and update mce_bad_pages when removing memory.
> 
>    Patch 4: new patch, and fix a NR_FREE_PAGES mismatch, and this bug
>             cause oom in my test.
> 
>    Patch 5: new patch, and fix a new bug. When repeating to online/offline
>             pages, the free pages will continue to decrease.
> 
> Wen Congyang (6):
>    clear the memory to store struct page
>    memory-hotplug: skip HWPoisoned page when offlining pages
>    memory-hotplug: update mce_bad_pages when removing the memory
>    memory-hotplug: auto offline page_cgroup when onlining memory block
>      failed
>    memory-hotplug: fix NR_FREE_PAGES mismatch
>    memory-hotplug: allocate zone's pcp before onlining pages
> 
> Yasuaki Ishimatsu (3):
>    suppress "Device memoryX does not have a release() function" warning
>    suppress "Device nodeX does not have a release() function" warning
>    memory-hotplug: flush the work for the node when the node is offlined
> 
>   drivers/base/memory.c          |    9 ++++++++-
>   drivers/base/node.c            |   11 +++++++++++
>   include/linux/page-isolation.h |   10 ++++++----
>   mm/memory-failure.c            |    2 +-
>   mm/memory_hotplug.c            |   14 ++++++++------
>   mm/page_alloc.c                |   37 ++++++++++++++++++++++++++++---------
>   mm/page_cgroup.c               |    3 +++
>   mm/page_isolation.c            |   27 ++++++++++++++++++++-------
>   mm/sparse.c                    |   22 +++++++++++++++++++++-
>   9 files changed, 106 insertions(+), 29 deletions(-)
> 


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