2.6.12-rc3-mm3 pcibus_to_node patch breaks ppc64 CONFIG_NUMA case

[R Sharada]

Hello,
	The patches in 2.6.12-rc3-mm3, that introduce pcibus_to_node, in the
ide driver code, break the ppc64 CONFIG_NUMA case, as there is no definition
for pcibus_to_node for the CONFIG_NUMA case in ppc64. The asm-generic/topology.h
definition for pcibus_to_node gets included for the !CONFIG_NUMA case and works
ok. There is a patch in mm3 for x86 that adds this definition on i386 and 
x86_64 platforms, but none for ppc64.

The following are the patches that seem to cause this problem:

numa-aware-block-device-control-structure-allocation.patch
numa-aware-block-device-control-structure-allocation-tidy.patch
- The above two patches introduce the pcibus_to_node call

Note:
x86-x86_64-pcibus_to_node.patch - this patches x86 code for pcibus_to_node alone

Thanks and Regards,
Sharada