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net: fib: Decrease one unnecessary rt cache flush in fib_disable_ip 

The func fib_flush already flushes the rt cache if necessary, so it
is not necessary to invoke rt_cache_flush again in fib_disable_ip.

Signed-off-by: Gao Feng <fgao@ikuai8.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Gao Feng 2017-04-26 19:04:04 +08:00 committed by David S. Miller
parent 1514dc857f
commit 06b4fc520d
1 changed files with 2 additions and 1 deletions
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net/ipv4/fib_frontend.c
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@ -1130,6 +1130,7 @@ static void fib_disable_ip(struct net_device *dev, unsigned long event,
{ {
if (fib_sync_down_dev(dev, event, force)) if (fib_sync_down_dev(dev, event, force))
fib_flush(dev_net(dev)); fib_flush(dev_net(dev));
else
rt_cache_flush(dev_net(dev)); rt_cache_flush(dev_net(dev));
arp_ifdown(dev); arp_ifdown(dev);
} }