On Fri, Mar 25, 2016 at 12:54 AM, Tom Herbert [off-list ref] wrote:

On Thu, Mar 24, 2016 at 4:40 PM, Yann Ylavic [off-list ref] wrote:

quoted

From this POV, draining the (ending) listeners is already non obvious
but might be reasonable, (e)BPF sounds really overkill.

Just the opposite, it's a simplification. With BPF we no longer to add
interfaces for all these special cases. This is an important point,
because the question is going to be raised for any proposed interface
change that could be accomplished with BPF (i.e. adding new interfaces
in the kernel becomes the overkill).

Please try to work with it. As I mentioned, the part that we may be
missing are some real world programs that we can direct people to use,
but aside from that I don't think we've seen any arguments that BPF is
overkill or too hard to use for stuff like this.

OK, you certainly know better than me.
Really looking forward these real world BPF programs to enlighten me.

Thanks for your time.

Regards,
Yann.