[RFC PATCH 0/3] mptcp: improve accept() and disconnect()

[Paolo Abeni <pabeni@redhat.com>]

As outlined in the public mtg, mptcp_accept() is currently quite
suboptimal, both from performance and code complexity

This series tries to clean it up, enforcing a wider lifetime for
the initial subflow, so that we don't need to acquire additional
references there.

To reach such goal we need to properly define the disconnect()
behavior, which is currently quite incomplete.

Some additional self-tests is likely required, 

Paolo Abeni (3):
  mptcp: never allow the PM to close a listener subflow
  mptcp: full disconnect implementation
  mptcp: cleanup accept and poll

 net/mptcp/pm.c         |  10 ++--
 net/mptcp/pm_netlink.c |   3 ++
 net/mptcp/protocol.c   | 120 ++++++++++++++++++++++++++---------------
 net/mptcp/protocol.h   |  15 +++++-
 net/mptcp/subflow.c    |   1 -
 net/mptcp/token.c      |   1 +
 6 files changed, 102 insertions(+), 48 deletions(-)

-- 
2.26.3