From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Mon, 29 Nov 2010 08:14:37 +0000 (+0000)
Subject: net sched: use xps information for qdisc NUMA affinity
X-Git-Tag: v2.6.38-rc1~476^2~384
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f2cd2d3e9b3ef960612e362f0ad129d735452df2;p=pandora-kernel.git

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>
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