From: Yasunori Goto <y-goto@jp.fujitsu.com>
Date: Tue, 27 Jun 2006 09:53:29 +0000 (-0700)
Subject: [PATCH] Catch notification of memory add event of ACPI via container driver. (avoid... 
X-Git-Tag: v2.6.18-rc1~585
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dd56a8e36f91f63c0a31e8a118d87b7cf01526b8;p=pandora-kernel.git

[PATCH] Catch notification of memory add event of ACPI via container driver. (avoid redundant call add_memory)

When acpi_memory_device_init() is called at boottime to register struct
memory acpi_memory_device, acpi_bus_add() are called via
acpi_driver_attach().

But it also calls ops->start() function.  It is called even if the memory
blocks are initialized at early boottime.  In this case add_memory() return
-EEXIST, and the memory blocks becomes INVALID state even if it is normal.

This is patch to avoid calling add_memory() for already available memory.

[akpm@osdl.org: coding cleanups]
Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: "Brown, Len" <len.brown@intel.com>
Cc: Dave Hansen <haveblue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

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