From: Badari Pulavarty <pbadari@us.ibm.com>
Date: Fri, 18 Apr 2008 20:33:50 +0000 (-0700)
Subject: [POWERPC] Hotplug memory remove notifications for powerpc
X-Git-Tag: v2.6.26-rc1~370^2~13
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=57b539269e9eef4dedc533d83c94877bc6b4d44d;p=pandora-kernel.git

[POWERPC] Hotplug memory remove notifications for powerpc

Hotplug memory remove notifier for 64-bit powerpc.  This gets invoked
by writing to /proc/ppc64/ofdt the string "remove_node " followed by
the firmware device tree pathname of the node that needs to be removed.

In response, this adjusts the sections and removes sysfs entries by
calling __remove_pages().  Then it calls arch-specific code to get rid
of the hardware MMU mappings for the section of memory.

Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
Reviewed-by: Michael Ellerman <michael@ellerman.id.au>
Cc: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---

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