tree 70e70c16e460df0b8da151bfff09e6b637c97b10
parent 1f425994f96d85540d47eee98daabc1e211b454e
author Yasunori Goto <y-goto@jp.fujitsu.com> 1151402009 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> 1151454755 -0700

[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>