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authorOctavian Purdila <opurdila@ixiacom.com>2010-12-13 12:44:07 +0000
committerDavid S. Miller <davem@davemloft.net>2010-12-16 14:04:44 -0800
commit443457242beb6716b43db4d62fe148eab5515505 (patch)
tree0dbcf7dbaa7c6be6ca84631f3e865cde3d6b59f2 /include/net/sch_generic.h
parentc6c8fea29769d998d94fcec9b9f14d4b52b349d3 (diff)
downloadop-kernel-dev-443457242beb6716b43db4d62fe148eab5515505.zip
op-kernel-dev-443457242beb6716b43db4d62fe148eab5515505.tar.gz
net: factorize sync-rcu call in unregister_netdevice_many
Add dev_close_many and dev_deactivate_many to factorize another sync-rcu operation on the netdevice unregister path. $ modprobe dummy numdummies=10000 $ ip link set dev dummy* up $ time rmmod dummy Without the patch With the patch real 0m 24.63s real 0m 5.15s user 0m 0.00s user 0m 0.00s sys 0m 6.05s sys 0m 5.14s Signed-off-by: Octavian Purdila <opurdila@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/sch_generic.h')
-rw-r--r--include/net/sch_generic.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index ea1f8a8..786cc39 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -321,6 +321,7 @@ extern void dev_init_scheduler(struct net_device *dev);
extern void dev_shutdown(struct net_device *dev);
extern void dev_activate(struct net_device *dev);
extern void dev_deactivate(struct net_device *dev);
+extern void dev_deactivate_many(struct list_head *head);
extern struct Qdisc *dev_graft_qdisc(struct netdev_queue *dev_queue,
struct Qdisc *qdisc);
extern void qdisc_reset(struct Qdisc *qdisc);
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