Forgot to clear out the patch at the bottom the first time.  Resending 
for clarity's sake.

Matthew Dobson wrote:
> Linus,
>     This series of patches creates a directory-based Topology in sysfs 
> (driverfs).  This includes the per-node meminfo patch you wanted, as 
> well as UP/SMP/NUMA topology.
>     There were discussions between myself, Andrew, Rusty, and Patrick, 
> and these are what we agreed on.
> 
> (1/5) Core sysfs Topology:
>     This patch creates the generic structures that are (will be)
>     embedded in the per-arch structures.  Also creates calls to
>     register these generic structures (CPUs, MemBlks, & Nodes).
> 
>     Note that without arch-specific structures in which to embed
>     these structures, and an arch-specific initialization routine,
>     these functions/structures remain unused.
> 
> (2/5) i386 sysfs Topology
>     This patch creates the i386 specific files/functions/structures
>     to implement driverfs Topology.  These structures have the
>     generic CPU/MemBlk/Node structures embedded in them.
> 
>     This patch also creates the arch-specific initialization routine
>     to instantiate the topology.
> 
> (3/5) per-node (NUMA) meminfo for sysfs Topology
>     This patch adds code to DriverFS Topology to expose per-node
>     memory statistics.
>     This information is exposed via the nodeX/meminfo file.
> 
>     The patch also adds 2 helper functions to gather per-node memory
>     info.
> 
> (4/5) memblk_online_map
>     This patch creates a memblk_online_map, much like
>     cpu_online_map.  It also creates the standard helper functions,
>     ie: memblk_online(), num_online_memblks(), memblk_set_online(),
>     memblk_set_offline().
> 
>     This is used by driverFS topology to keep track of which memory
>     blocks are in the system and online.
> 
> (5/5) node_online_map
>     This patch creates a node_online_map, much like cpu_online_map.
>     It also creates the standard helper functions, ie:
>     node_online(), num_online_nodes(), node_set_online(),
>     node_set_offline().
> 
>     This is used by driverFS topology to keep track of which Nodes
>     are in the system and online.
> 
> Cheers!
> 
> -Matt