netprio_cgroup: don't allocate prio table when a device is registered
authorNeil Horman <nhorman@tuxdriver.com>
Fri, 10 Feb 2012 05:43:37 +0000 (05:43 +0000)
committerDavid S. Miller <davem@davemloft.net>
Fri, 10 Feb 2012 20:08:57 +0000 (15:08 -0500)
commitf5c38208d32412d72b97a4f0d44af0eb39feb20b
tree66d7a30ed9ec41fc9327b9fc839eec497055c5a9
parenta87dfe14a78501c931a4d5481efff6a809aa907d
netprio_cgroup: don't allocate prio table when a device is registered

So we delay the allocation till the priority is set through cgroup,
and this makes skb_update_priority() faster when it's not set.

This also eliminates an off-by-one bug similar with the one fixed
in the previous patch.

Origionally-authored-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
CC: "David S. Miller" <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/core/netprio_cgroup.c