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sparc64: Fix numa node distance initialization

Orabug: 22495713

Currently, NUMA node distance matrix is initialized only
when a machine descriptor (MD) exists. However, sun4u
machines (e.g. Sun Blade 2500) do not have an MD and thus
distance values were left uninitialized. The initialization
is now moved such that it happens on both sun4u and sun4v.

Signed-off-by: Nitin Gupta <nitin.m.gupta@oracle.com>
Tested-by: Mikael Pettersson <mikpelinux@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nitin Gupta 9 年之前
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36beca6571
共有 1 个文件被更改,包括 8 次插入7 次删除
  1. 8 7
      arch/sparc/mm/init_64.c

+ 8 - 7
arch/sparc/mm/init_64.c

@@ -1267,13 +1267,6 @@ static int __init numa_parse_mdesc(void)
 	int i, j, err, count;
 	int i, j, err, count;
 	u64 node;
 	u64 node;
 
 
-	/* Some sane defaults for numa latency values */
-	for (i = 0; i < MAX_NUMNODES; i++) {
-		for (j = 0; j < MAX_NUMNODES; j++)
-			numa_latency[i][j] = (i == j) ?
-				LOCAL_DISTANCE : REMOTE_DISTANCE;
-	}
-
 	node = mdesc_node_by_name(md, MDESC_NODE_NULL, "latency-groups");
 	node = mdesc_node_by_name(md, MDESC_NODE_NULL, "latency-groups");
 	if (node == MDESC_NODE_NULL) {
 	if (node == MDESC_NODE_NULL) {
 		mdesc_release(md);
 		mdesc_release(md);
@@ -1369,10 +1362,18 @@ static int __init numa_parse_sun4u(void)
 
 
 static int __init bootmem_init_numa(void)
 static int __init bootmem_init_numa(void)
 {
 {
+	int i, j;
 	int err = -1;
 	int err = -1;
 
 
 	numadbg("bootmem_init_numa()\n");
 	numadbg("bootmem_init_numa()\n");
 
 
+	/* Some sane defaults for numa latency values */
+	for (i = 0; i < MAX_NUMNODES; i++) {
+		for (j = 0; j < MAX_NUMNODES; j++)
+			numa_latency[i][j] = (i == j) ?
+				LOCAL_DISTANCE : REMOTE_DISTANCE;
+	}
+
 	if (numa_enabled) {
 	if (numa_enabled) {
 		if (tlb_type == hypervisor)
 		if (tlb_type == hypervisor)
 			err = numa_parse_mdesc();
 			err = numa_parse_mdesc();