On Tue, 2006-06-27 at 13:14 -0700, David Miller wrote:
> This change isn't truly atomic from a kernel standpoint either.
> 
> The new dst won't be selected by the socket until later,
> when the socket tries to send something, notices the old dst
> is obsolete, and looks up a new one.
> 
> Your code could do the same thing.
> 

For an RDMA NIC, all this logic is in HW, which is why we need the event
notification; to tell the HW to change its next hop information.



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