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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2010-11-29 08:14:37 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-12-01 12:47:42 -0800 |
| commit | f2cd2d3e9b3ef960612e362f0ad129d735452df2 (patch) | |
| tree | bef1868cfc7dc66de7b2430a4b47b12bced05ec1 /net/sched/sch_generic.c | |
| parent | 0793f83f0ec2142d06abe53570417c8d95e0310a (diff) | |
| download | op-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.c | 4 |
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); |
