The patch below does not apply to the 4.19-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@xxxxxxxxxxxxxxx>.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
>From 535e4fc623fab2e09a0653fc3a3e17f382ad0251 Mon Sep 17 00:00:00 2001
From: Alexander Gordeev <agordeev@xxxxxxxxxxxxx>
Date: Tue, 4 Aug 2020 20:35:49 +0200
Subject: [PATCH] s390/numa: set node distance to LOCAL_DISTANCE
The node distance is hardcoded to 0, which causes a trouble
for some user-level applications. In particular, "libnuma"
expects the distance of a node to itself as LOCAL_DISTANCE.
This update removes the offending node distance override.
Cc: <stable@xxxxxxxxxxxxxxx> # 4.4
Fixes: 3a368f742da1 ("s390/numa: add core infrastructure")
Signed-off-by: Alexander Gordeev <agordeev@xxxxxxxxxxxxx>
Signed-off-by: Heiko Carstens <hca@xxxxxxxxxxxxx>
diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h
index fbb507504a3b..3a0ac0c7a9a3 100644
--- a/arch/s390/include/asm/topology.h
+++ b/arch/s390/include/asm/topology.h
@@ -86,12 +86,6 @@ static inline const struct cpumask *cpumask_of_node(int node)
#define pcibus_to_node(bus) __pcibus_to_node(bus)
-#define node_distance(a, b) __node_distance(a, b)
-static inline int __node_distance(int a, int b)
-{
- return 0;
-}
-
#else /* !CONFIG_NUMA */
#define numa_node_id numa_node_id
