Commit 598c12d0 authored Oct 02, 2015 by Konstantin Khlebnikov Committed by David S. Miller Oct 05, 2015

ovs: do not allocate memory from offline numa node



When openvswitch tries allocate memory from offline numa node 0:
stats = kmem_cache_alloc_node(flow_stats_cache, GFP_KERNEL | __GFP_ZERO, 0)
It catches VM_BUG_ON(nid < 0 || nid >= MAX_NUMNODES || !node_online(nid))
[ replaced with VM_WARN_ON(!node_online(nid)) recently ] in linux/gfp.h
This patch disables numa affinity in this case.

Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 93d08b69

net/openvswitch/flow_table.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -93,7 +93,8 @@ struct sw_flow *ovs_flow_alloc(void)

		/* Initialize the default stat node. */
		stats = kmem_cache_alloc_node(flow_stats_cache,
		GFP_KERNEL \| __GFP_ZERO, 0);
		GFP_KERNEL \| __GFP_ZERO,
		node_online(0) ? 0 : NUMA_NO_NODE);
		if (!stats)
		goto err;