linux-kernel - [PATCH 0/3] memory hotplug: updates and bugfix for is

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Message-Id: <20100907102813.d633b8ef.kamezawa.hiroyu@jp.fujitsu.com>
Date:	Tue, 7 Sep 2010 10:28:13 +0900
From:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Cc:	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Michal Hocko <mhocko@...e.cz>, fengguang.wu@...el.com,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	Mel Gorman <mel@....ul.ie>, andi.kleen@...el.com,
	Dave Hansen <dave@...ux.vnet.ibm.com>
Subject: [PATCH 0/3] memory hotplug: updates and bugfix for is_removable v3

Thank you for review and comments. totally updated.

Problem:

/sys/devices/system/memory/memoryX/removable file shows whether the section
can be offlined or not. Returns "1" if it seems removable.

Now, the file uses a similar logic to one offline_pages() uses.
Then, it's better to use unified logic.

The biggest change from previous one is this patch just unifies is_removable()
and offline code's logic. No functional change in offline() code.
(is_removable code is updated to be better.)

Brief patch description:
1. bugfix for is_removable() check. I think this should be back ported. (updated)
2. bugfix for callback at counting immobile pages. (no change)
3. the unified new logic for is_remobable. (updated)

Because I'm moving house, my response may be delayd.

Thanks,
-Kame

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