git: kernel - Adjust arp code to not spam all cpus

[Matthew Dillon]

commit db37b7cb7585486031e15797264c6f73811d6428
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date:   Tue Jul 12 00:23:32 2016 -0700

    kernel - Adjust arp code to not spam all cpus
    
    * Do not spam all cpus if the arp does not change the routing table.
    
    * Supply (for now) a 1-second hysteresis for expiration updates.
    
    * Add a little netisr debugging for kgdb.

Summary of changes:
 sys/net/netisr.c       |  2 ++
 sys/netinet/if_ether.c | 61 +++++++++++++++++++++++++++++++++++++-------------
 2 files changed, 47 insertions(+), 16 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/db37b7cb7585486031e15797264c6f73811d6428


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