Matthew Dobson wrote:
> Matthew Dobson wrote:
>> 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