David S. Miller caacf05e5a ipv4: Properly purge netdev references on uncached routes. ...

When a device is unregistered, we have to purge all of the
references to it that may exist in the entire system.

If a route is uncached, we currently have no way of accomplishing
this.

So create a global list that is scanned when a network device goes
down.  This mirrors the logic in net/core/dst.c's dst_ifdown().

Signed-off-by: David S. Miller <davem@davemloft.net>

2012-07-31 15:06:50 -07:00

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