[next-next PATCH 0/7] Fixes and improvements for recent fib_trie updates

[Alexander Duyck <alexander.h.duyck@redhat.com>]

While performing testing and prepping the next round of patches I found a
few minor issues and improvements that could be made.

These changes should help to reduce the overall code size and improve the
performance slighlty as I noticed a 20ns or so improvement in my worst-case
testing which will likely only result in a 1ns difference with a standard
sized trie.

---

Alexander Duyck (7):
      fib_trie: Use index & (~0ul << n->bits) instead of index >> n->bits
      fib_trie: Fix RCU bug and merge similar bits of inflate/halve
      fib_trie: Fall back to slen update on inflate/halve failure
      fib_trie: Add collapse() and should_collapse() to resize
      fib_trie: Use empty_children instead of counting empty nodes in stats collection
      fib_trie: Move fib_find_alias to file where it is used
      fib_trie: Various clean-ups for handling slen


 net/ipv4/fib_lookup.h    |    1 
 net/ipv4/fib_semantics.c |   18 --
 net/ipv4/fib_trie.c      |  354 ++++++++++++++++++++++++++--------------------
 3 files changed, 198 insertions(+), 175 deletions(-)

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