Patch "sparc64: Fix numa node distance initialization" has been added to the 4.4-stable tree

This is a note to let you know that I've just added the patch titled

sparc64: Fix numa node distance initialization

to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
sparc64-fix-numa-node-distance-initialization.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Nitin Gupta <[email protected]>
Date: Tue, 5 Jan 2016 22:35:35 -0800
Subject: sparc64: Fix numa node distance initialization

From: Nitin Gupta <[email protected]>

[ Upstream commit 36beca6571c941b28b0798667608239731f9bc3a ]

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.

---
 arch/sparc/mm/init_64.c |   15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

@@ -1267,13 +1267,6 @@ static int __init numa_parse_mdesc(void)
 	int i, j, err, count;
 	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");
 	if (node == MDESC_NODE_NULL) {
 		mdesc_release(md);

@@ -1369,10 +1362,18 @@ static int __init numa_parse_sun4u(void)
 
 static int __init bootmem_init_numa(void)
 {
+	int i, j;
 	int err = -1;
 
 	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 (tlb_type == hypervisor)
 			err = numa_parse_mdesc();

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/sparc64-reduce-tlb-flushes-during-hugepte-changes.patch queue-4.4/sparc64-fix-numa-node-distance-initialization.patch