[PATCH net-next v2 0/4] mptcp: refactor token container

[Paolo Abeni <pabeni@redhat.com>]

Currently the msk sockets are stored in a single radix tree, protected by a
global spin_lock. This series moves to an hash table, allocated at boot time,
with per bucker spin_lock - alike inet_hashtables, but using a different key:
the token itself.

The above improves scalability, as write operations will have a far later chance
to compete for lock acquisition, allows lockless lookup, and will allow
easier msk traversing - e.g. for diag interface implementation's sake.

This also introduces trivial, related, kunit tests and move the existing in
kernel's one to kunit.

v1 -> v2:
 - fixed a few extra and sparse warns

Paolo Abeni (4):
  mptcp: add __init annotation on setup functions
  mptcp: refactor token container
  mptcp: move crypto test to KUNIT
  mptcp: introduce token KUNIT self-tests

 net/mptcp/Kconfig       |  20 ++-
 net/mptcp/Makefile      |   4 +
 net/mptcp/crypto.c      |  63 +--------
 net/mptcp/crypto_test.c |  72 +++++++++++
 net/mptcp/pm.c          |   2 +-
 net/mptcp/pm_netlink.c  |   2 +-
 net/mptcp/protocol.c    |  49 ++++---
 net/mptcp/protocol.h    |  24 ++--
 net/mptcp/subflow.c     |  21 ++-
 net/mptcp/token.c       | 280 ++++++++++++++++++++++++++++------------
 net/mptcp/token_test.c  | 140 ++++++++++++++++++++
 11 files changed, 487 insertions(+), 190 deletions(-)
 create mode 100644 net/mptcp/crypto_test.c
 create mode 100644 net/mptcp/token_test.c

-- 
2.26.2