[PATCH 0/4] caching bundles, iteration 3

[Timo Teras <timo.teras@iki.fi>]

Applies on top of the previous patches I sent.

Changes to previous iteration:
 - "flow: delayed deletion of flow cache entries" refactored to go
   after the other patches per Herbert's request
 - fixed hlist searching in the above mentioned patch
 - uses now ERR_CAST and other similar functions for better readability
 - added basic gc for per-socket bundles
 - some other minor clean ups

I'm now running this on a test box, with my specific setup, and it
seems to be working pretty well. However, this changes quite a bit
of things, so detailed review is needed.

Timo Teras (4):
  flow: virtualize flow cache entry methods
  xfrm: cache bundles instead of policies for outgoing flows
  xfrm: remove policy garbage collection
  flow: delayed deletion of flow cache entries

 include/net/flow.h      |   18 +-
 include/net/xfrm.h      |   12 +-
 net/core/flow.c         |  203 +++++++-----
 net/ipv4/xfrm4_policy.c |   22 --
 net/ipv6/xfrm6_policy.c |   31 --
 net/xfrm/xfrm_policy.c  |  822 +++++++++++++++++++++++++----------------------
 6 files changed, 583 insertions(+), 525 deletions(-)