提交 64b7d961 编写于 作者: E Eric Dumazet 提交者: David S. Miller

[NET]: dst_ifdown() cleanup

This cleanup shrinks size of net/core/dst.o on i386 from 1299 to 1289 bytes.
(This is because dev_hold()/dev_put() are doing atomic_inc()/atomic_dec() and
force compiler to re-evaluate memory contents.)
Signed-off-by: NEric Dumazet <dada1@cosmosbay.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 00501121
...@@ -284,8 +284,8 @@ static inline void dst_ifdown(struct dst_entry *dst, struct net_device *dev, ...@@ -284,8 +284,8 @@ static inline void dst_ifdown(struct dst_entry *dst, struct net_device *dev,
dev_put(dev); dev_put(dev);
if (dst->neighbour && dst->neighbour->dev == dev) { if (dst->neighbour && dst->neighbour->dev == dev) {
dst->neighbour->dev = dst->dev; dst->neighbour->dev = dst->dev;
dev_hold(dst->dev);
dev_put(dev); dev_put(dev);
dev_hold(dst->neighbour->dev);
} }
} }
} }
......
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