[PATCH 0/4] caching bundles, iteration 5

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

Changes:
- ops->delete() is now called if flow_cache_genid was changed to
  ensure that resolver does not use stale data
- removed bumping of policy->genid when inserting new policy since
  flow_cache_genid ensures everything is regenerated (thanks Herbert!)
- added unlikely/likely to flow_cache_lookup to favor fast path
  (cache hit)
- added herbert's ack to 1/4 

Compiles, boots and VPN goes up on my test box. Earlier iterations
tested to stay up 3+ days without noticing leaks or other problems.

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      |   23 ++-
 include/net/xfrm.h      |   12 +-
 net/core/flow.c         |  212 ++++++++-----
 net/ipv4/xfrm4_policy.c |   22 --
 net/ipv6/xfrm6_policy.c |   31 --
 net/xfrm/xfrm_policy.c  |  820 +++++++++++++++++++++++++----------------------
 6 files changed, 591 insertions(+), 529 deletions(-)