From f2cd2d3e9b3ef960612e362f0ad129d735452df2 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Mon, 29 Nov 2010 08:14:37 +0000 Subject: net sched: use xps information for qdisc NUMA affinity Allocate qdisc memory according to NUMA properties of cpus included in xps map. To be effective, qdisc should be (re)setup after changes of /sys/class/net/eth/queues/tx-/xps_cpus I added a numa_node field in struct netdev_queue, containing NUMA node if all cpus included in xps_cpus share same node, else -1. Signed-off-by: Eric Dumazet Cc: Ben Hutchings Cc: Tom Herbert Signed-off-by: David S. Miller --- net/sched/sch_generic.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'net/sched') diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c index 7f0bd8952646..0918834ee4a1 100644 --- a/net/sched/sch_generic.c +++ b/net/sched/sch_generic.c @@ -553,7 +553,9 @@ struct Qdisc *qdisc_alloc(struct netdev_queue *dev_queue, size = QDISC_ALIGN(sizeof(*sch)); size += ops->priv_size + (QDISC_ALIGNTO - 1); - p = kzalloc(size, GFP_KERNEL); + p = kzalloc_node(size, GFP_KERNEL, + netdev_queue_numa_node_read(dev_queue)); + if (!p) goto errout; sch = (struct Qdisc *) QDISC_ALIGN((unsigned long) p); -- cgit v1.2.3-59-g8ed1b