From: Yasunori Goto <y-goto@jp.fujitsu.com>
Date: Thu, 15 Nov 2007 00:59:20 +0000 (-0800)
Subject: Add IORESOUCE_BUSY flag for System RAM
X-Git-Tag: v2.6.24-rc3~104
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=887c3cb18865a4f9e0786e5a5b3ef47ff469b956;p=pandora-kernel.git

Add IORESOUCE_BUSY flag for System RAM

i386 and x86-64 registers System RAM as IORESOURCE_MEM | IORESOURCE_BUSY.

But ia64 registers it as IORESOURCE_MEM only.
In addition, memory hotplug code registers new memory as IORESOURCE_MEM too.

This difference causes a failure of memory unplug of x86-64.  This patch
fixes it.

This patch adds IORESOURCE_BUSY to avoid potential overlap mapping by PCI
device.

Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
Cc: Luck, Tony" <tony.luck@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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