tree e13b52665a811f9c5ad3621a2408be1b4f70c78c
parent 3f0947c3ffaed33c1c38b79e4b17f75ba072d3e9
author Jarek Poplawski <jarkao2@gmail.com> 1227570485 -0800
committer David S. Miller <davem@davemloft.net> 1227570485 -0800

net: gen_estimator: Fix gen_kill_estimator() lookups

gen_kill_estimator() linear lists lookups are very slow, and e.g. while
deleting a large number of HTB classes soft lockups were reported. Here
is another try to fix this problem: this time internally, with rbtree,
so similarly to Jamal's hashing idea IIRC. (Looking for next hits could
be still optimized, but it's really fast as it is.)

Reported-by: Badalian Vyacheslav <slavon@bigtelecom.ru>
Reported-by: Denys Fedoryshchenko <denys@visp.net.lb>
Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Acked-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>