From c148fc2e30c988f7e3ac91738b2c03f1cef44849 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Sun, 1 Nov 2009 19:23:04 +0000 Subject: [PATCH] ipv4: inetdev_by_index() switch to RCU Use dev_get_by_index_rcu() instead of __dev_get_by_index() and dev_base_lock rwlock Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- net/ipv4/devinet.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c index 5df2f6a0b0f0..ccccaae50b20 100644 --- a/net/ipv4/devinet.c +++ b/net/ipv4/devinet.c @@ -405,11 +405,12 @@ struct in_device *inetdev_by_index(struct net *net, int ifindex) { struct net_device *dev; struct in_device *in_dev = NULL; - read_lock(&dev_base_lock); - dev = __dev_get_by_index(net, ifindex); + + rcu_read_lock(); + dev = dev_get_by_index_rcu(net, ifindex); if (dev) in_dev = in_dev_get(dev); - read_unlock(&dev_base_lock); + rcu_read_unlock(); return in_dev; } -- 2.30.2