[PATCH v2 net-next 0/5] rhashtable: New features in walk and bucket

[Tom Herbert <tom@quantonium.net>]

This patch contains some changes to related rhashtable:

- Above allow rhashtable_walk_start to return void
- Add a functon to peek at the next entry during a walk
- Abstract out function to compute a has for a table
- A library function to alloc a spinlocks bucket array
- Call the above function for rhashtable locks allocation

Tested: Exercised using various operations on an ILA xlat
table.

v2:
 - Apply feedback from Herbert. Don't change semantics of resize
   event reporting and -EAGAIN, just simplify API for callers that
   ignore those.
 - Add end_of_table in iter to reliably tell when the iterator has
   reached to the eno.

Tom Herbert (5):
  rhashtable: Change rhashtable_walk_start to return void
  rhashtable: Add rhastable_walk_peek
  rhashtable: abstract out function to get hash
  spinlock: Add library function to allocate spinlock buckets array
  rhashtable: Call library function alloc_bucket_locks

 drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c       |   6 +-
 .../net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c   |   7 +-
 fs/gfs2/glock.c                                    |   7 +-
 include/linux/rhashtable.h                         |  38 +++--
 include/linux/spinlock.h                           |   6 +
 include/net/sctp/sctp.h                            |   2 +-
 lib/Makefile                                       |   2 +-
 lib/bucket_locks.c                                 |  54 +++++++
 lib/rhashtable.c                                   | 160 +++++++++++++--------
 lib/test_rhashtable.c                              |   6 +-
 net/ipv6/ila/ila_xlat.c                            |   4 +-
 net/ipv6/seg6.c                                    |   4 +-
 net/mac80211/mesh_pathtbl.c                        |  34 ++---
 net/netfilter/nft_set_hash.c                       |  10 +-
 net/netlink/af_netlink.c                           |   5 +-
 net/netlink/diag.c                                 |   8 +-
 net/sctp/proc.c                                    |   6 +-
 net/sctp/socket.c                                  |  19 +--
 net/tipc/socket.c                                  |   6 +-
 19 files changed, 224 insertions(+), 160 deletions(-)
 create mode 100644 lib/bucket_locks.c

-- 
2.11.0