[PATCH] net: Avoid allocing memory on memoryless numa node

[Xianting Tian <tian.xianting@h3c.com>]

In architecture like powerpc, we can have cpus without any local memory
attached to it. In such cases the node does not have real memory.

Use local_memory_node(), which is guaranteed to have memory.
local_memory_node is a noop in other architectures that does not support
memoryless nodes.

Signed-off-by: Xianting Tian <tian.xianting@h3c.com>
---
 net/core/dev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/core/dev.c b/net/core/dev.c
index 266073e30..dcb4533ef 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2590,7 +2590,7 @@ static struct xps_map *expand_xps_map(struct xps_map *map, int attr_index,
 		new_map = kzalloc(XPS_MAP_SIZE(alloc_len), GFP_KERNEL);
 	else
 		new_map = kzalloc_node(XPS_MAP_SIZE(alloc_len), GFP_KERNEL,
-				       cpu_to_node(attr_index));
+				       local_memory_node(cpu_to_node(attr_index)));
 	if (!new_map)
 		return NULL;
 
-- 
2.17.1