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Diffstat (limited to 'arch/x86_64/mm/srat.c')
-rw-r--r--arch/x86_64/mm/srat.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/arch/x86_64/mm/srat.c b/arch/x86_64/mm/srat.c
index 19396a261e8..8491300ef90 100644
--- a/arch/x86_64/mm/srat.c
+++ b/arch/x86_64/mm/srat.c
@@ -27,7 +27,7 @@ static struct acpi_table_slit *acpi_slit;
static nodemask_t nodes_parsed __initdata;
static struct bootnode nodes[MAX_NUMNODES] __initdata;
-static struct bootnode nodes_add[MAX_NUMNODES] __initdata;
+static struct bootnode nodes_add[MAX_NUMNODES];
static int found_add_area __initdata;
int hotadd_percent __initdata = 0;
@@ -466,3 +466,14 @@ int __node_distance(int a, int b)
}
EXPORT_SYMBOL(__node_distance);
+
+int memory_add_physaddr_to_nid(u64 start)
+{
+ int i, ret = 0;
+
+ for_each_node(i)
+ if (nodes_add[i].start <= start && nodes_add[i].end > start)
+ ret = i;
+
+ return ret;
+}