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| author | David S. Miller <davem@davemloft.net> | 2008-07-18 22:50:15 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-07-18 22:50:15 -0700 |
| commit | 3072367300aa8c779e3a14ee8e89de079e90f3ad (patch) | |
| tree | 7f74c5b8fdb300532fbbc83ba00d6d1d17af020e /net/core | |
| parent | 72b25a913ed9b1ab49c7022adaf3f271a65ea219 (diff) | |
| download | lwn-3072367300aa8c779e3a14ee8e89de079e90f3ad.tar.gz lwn-3072367300aa8c779e3a14ee8e89de079e90f3ad.zip | |
pkt_sched: Manage qdisc list inside of root qdisc.
Idea is from Patrick McHardy.
Instead of managing the list of qdiscs on the device level, manage it
in the root qdisc of a netdev_queue. This solves all kinds of
visibility issues during qdisc destruction.
The way to iterate over all qdiscs of a netdev_queue is to visit
the netdev_queue->qdisc, and then traverse it's list.
The only special case is to ignore builting qdiscs at the root when
dumping or doing a qdisc_lookup(). That was not needed previously
because builtin qdiscs were not added to the device's qdisc_list.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/dev.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index e54acde839da..065b9817e209 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -3888,8 +3888,6 @@ int register_netdevice(struct net_device *dev) net = dev_net(dev); spin_lock_init(&dev->addr_list_lock); - spin_lock_init(&dev->qdisc_list_lock); - INIT_LIST_HEAD(&dev->qdisc_list); netdev_init_queue_locks(dev); dev->iflink = -1; |