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| author |   Eric Dumazet <edumazet@google.com> | 2016-06-06 09:37:15 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2016-06-07 16:37:13 -0700 |
| commit | f9eb8aea2a1e12fc2f584d1627deeb957435a801 (patch) | |
| tree | bc3cf06664da45bc0e6ce9b5165dba534ed11751 /drivers/net/bonding/bond_main.c | |
| parent | Merge branch 'be2net-noncrit-fixes' (diff) | |
| download | linux-dev-f9eb8aea2a1e12fc2f584d1627deeb957435a801.tar.xz linux-dev-f9eb8aea2a1e12fc2f584d1627deeb957435a801.zip | |
net_sched: transform qdisc running bit into a seqcount
Instead of using a single bit (__QDISC___STATE_RUNNING)
in sch->__state, use a seqcount.
This adds lockdep support, but more importantly it will allow us
to sample qdisc/class statistics without having to grab qdisc root lock.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/bonding/bond_main.c')
| -rw-r--r-- | drivers/net/bonding/bond_main.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 941ec99cd3b6..681af31a60ed 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -4610,6 +4610,7 @@ static int bond_check_params(struct bond_params *params) static struct lock_class_key bonding_netdev_xmit_lock_key; static struct lock_class_key bonding_netdev_addr_lock_key; static struct lock_class_key bonding_tx_busylock_key; +static struct lock_class_key bonding_qdisc_running_key; static void bond_set_lockdep_class_one(struct net_device *dev, struct netdev_queue *txq, @@ -4625,6 +4626,7 @@ static void bond_set_lockdep_class(struct net_device *dev) &bonding_netdev_addr_lock_key); netdev_for_each_tx_queue(dev, bond_set_lockdep_class_one, NULL); dev->qdisc_tx_busylock = &bonding_tx_busylock_key; + dev->qdisc_running_key = &bonding_qdisc_running_key; } /* Called from registration process */ |