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authorEric Dumazet <eric.dumazet@gmail.com>2010-11-29 08:14:37 +0000
committerDavid S. Miller <davem@davemloft.net>2010-12-01 12:47:42 -0800
commitf2cd2d3e9b3ef960612e362f0ad129d735452df2 (patch)
treebef1868cfc7dc66de7b2430a4b47b12bced05ec1 /net/sched/sch_generic.c
parent0793f83f0ec2142d06abe53570417c8d95e0310a (diff)
downloadop-kernel-dev-f2cd2d3e9b3ef960612e362f0ad129d735452df2.zip
op-kernel-dev-f2cd2d3e9b3ef960612e362f0ad129d735452df2.tar.gz
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<n>/queues/tx-<n>/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 <eric.dumazet@gmail.com> Cc: Ben Hutchings <bhutchings@solarflare.com> Cc: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/sch_generic.c')
-rw-r--r--net/sched/sch_generic.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 7f0bd89..0918834 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);
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