linux-kernel - [RFC PATCH V6 07/19] memory-hotplug: call acpi_bus

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Date:	Fri, 3 Aug 2012 15:49:09 +0800
From:	wency@...fujitsu.com
To:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	linuxppc-dev@...ts.ozlabs.org, linux-acpi@...r.kernel.org,
	linux-s390@...r.kernel.org, linux-sh@...r.kernel.org,
	linux-ia64@...r.kernel.org, cmetcalf@...era.com
Cc:	rientjes@...gle.com, liuj97@...il.com, len.brown@...el.com,
	benh@...nel.crashing.org, paulus@...ba.org, cl@...ux.com,
	minchan.kim@...il.com, akpm@...ux-foundation.org,
	kosaki.motohiro@...fujitsu.com, isimatu.yasuaki@...fujitsu.com,
	Wen Congyang <wency@...fujitsu.com>
Subject: [RFC PATCH V6 07/19] memory-hotplug: call acpi_bus_remove() to remove memory device

From: Wen Congyang <wency@...fujitsu.com>

The memory device has been ejected and powoffed, so we can call
acpi_bus_remove() to remove the memory device from acpi bus.

CC: David Rientjes <rientjes@...gle.com>
CC: Jiang Liu <liuj97@...il.com>
CC: Len Brown <len.brown@...el.com>
CC: Benjamin Herrenschmidt <benh@...nel.crashing.org>
CC: Paul Mackerras <paulus@...ba.org>
CC: Christoph Lameter <cl@...ux.com>
Cc: Minchan Kim <minchan.kim@...il.com>
CC: Andrew Morton <akpm@...ux-foundation.org>
CC: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
CC: Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>
Signed-off-by: Wen Congyang <wency@...fujitsu.com>
---
 drivers/acpi/acpi_memhotplug.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index ed37fc2..755cc31 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -423,8 +423,9 @@ static void acpi_memory_device_notify(acpi_handle handle, u32 event, void *data)
 		}
 
 		/*
-		 * TBD: Invoke acpi_bus_remove to cleanup data structures
+		 * Invoke acpi_bus_remove() to remove memory device
 		 */
+		acpi_bus_remove(device, 1);
 
 		/* _EJ0 succeeded; _OST is not necessary */
 		return;
-- 
1.7.1

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