Commit 0f9b75ef authored Mar 25, 2010 by David Rientjes Committed by Len Brown Apr 04, 2010

ACPI: NUMA: map pxms to low node ids



pxms are mapped to low node ids to maintain generic kernel use of
functions such as pxm_to_node() that are used to determine device
affinity.  Otherwise, there is no pxm-to-node and node-to-pxm matching
rule for x86_64 users of NUMA emulation where a single pxm may be bound
to multiple NUMA nodes.

Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Len Brown <len.brown@intel.com>

parent 2eaa9cfd

drivers/acpi/numa.c

+4 −2

Original line number	Diff line number	Diff line
		@@ -61,7 +61,9 @@ int node_to_pxm(int node)

		void __acpi_map_pxm_to_node(int pxm, int node)
		{
		if (pxm_to_node_map[pxm] == NUMA_NO_NODE \|\| node < pxm_to_node_map[pxm])
		pxm_to_node_map[pxm] = node;
		if (node_to_pxm_map[node] == PXM_INVAL \|\| pxm < node_to_pxm_map[node])
		node_to_pxm_map[node] = pxm;
		}

Admin message