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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2009-11-04 05:43:23 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-11-04 05:43:23 -0800 |
| commit | c6d14c84566d6b70ad9dc1618db0dec87cca9300 (patch) | |
| tree | 5ec75245cfda4d61e6b4506b6217f047ff4af01a /net/decnet/dn_fib.c | |
| parent | d0075634cf9d288988f57392a1f132d2053af961 (diff) | |
| download | blackbird-op-linux-c6d14c84566d6b70ad9dc1618db0dec87cca9300.tar.gz blackbird-op-linux-c6d14c84566d6b70ad9dc1618db0dec87cca9300.zip | |
net: Introduce for_each_netdev_rcu() iterator
Adds RCU management to the list of netdevices.
Convert some for_each_netdev() users to RCU version, if
it can avoid read_lock-ing dev_base_lock
Ie:
read_lock(&dev_base_loack);
for_each_netdev(net, dev)
some_action();
read_unlock(&dev_base_lock);
becomes :
rcu_read_lock();
for_each_netdev_rcu(net, dev)
some_action();
rcu_read_unlock();
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/decnet/dn_fib.c')
| -rw-r--r-- | net/decnet/dn_fib.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/net/decnet/dn_fib.c b/net/decnet/dn_fib.c index 27ea2e9b080a..fd641f65e092 100644 --- a/net/decnet/dn_fib.c +++ b/net/decnet/dn_fib.c @@ -607,8 +607,8 @@ static void dn_fib_del_ifaddr(struct dn_ifaddr *ifa) ASSERT_RTNL(); /* Scan device list */ - read_lock(&dev_base_lock); - for_each_netdev(&init_net, dev) { + rcu_read_lock(); + for_each_netdev_rcu(&init_net, dev) { dn_db = dev->dn_ptr; if (dn_db == NULL) continue; @@ -619,7 +619,7 @@ static void dn_fib_del_ifaddr(struct dn_ifaddr *ifa) } } } - read_unlock(&dev_base_lock); + rcu_read_unlock(); if (found_it == 0) { fib_magic(RTM_DELROUTE, RTN_LOCAL, ifa->ifa_local, 16, ifa); |
