[PATCH v2 00/13] Clean up to tap errors and epoll dispatch

[David Gibson <david@gibson.dropbear.id.au>]

Getting from an epoll event to the relevant handler function is
currently several levels of functions and tests.  This series
simplifies this to be pretty close to a single switch on a value in
the epoll ref dispatching directly to the appropriate handler.

Doing this requires some preliminary cleaning up of the handling of
errors or disconnects on the tap device.

Changes since v1:
 * Give listening TCP sockets their own reference type
 * Fold "tap reset" series into this one

Changes since v2 of tap reset series:
 * More thorough cleanup of handling error events on the listening
   Unix socket.
Changes since v1 of the tap reset series:
 * Two extra patches that further clean up the reset path

David Gibson (13):
  tap: Clean up tap reset path
  tap: Clean up behaviour for errors on listening Unix socket
  tap: Fold reset handling into tap_handler_pasta()
  tap: Fold reset handling into tap_handler_passt()
  epoll: Generalize epoll_ref to cover things other than sockets
  epoll: Always use epoll_ref for the epoll data variable
  epoll: Fold sock_handler into general switch on epoll event fd
  epoll: Split handling of ICMP and ICMPv6 sockets
  epoll: Tiny cleanup to udp_sock_handler()
  epoll: Split handling of TCP timerfds into its own handler function
  epoll: Split handling of listening TCP sockets into their own handler
  epoll: Split listening Unix domain socket into its own type
  epoll: Use different epoll types for passt and pasta tap fds

 icmp.c       | 118 +++++++++++++++++++++++++--------------------
 icmp.h       |   9 ++--
 passt.c      |  90 ++++++++++++++++++++--------------
 passt.h      |  56 +++++++++++++++++-----
 pasta.c      |   8 +++-
 tap.c        | 133 ++++++++++++++++++++++++++-------------------------
 tap.h        |   7 ++-
 tcp.c        |  84 ++++++++++++++------------------
 tcp.h        |  28 +++++++----
 tcp_conn.h   |   4 +-
 tcp_splice.c |   8 ++--
 tcp_splice.h |   2 +-
 udp.c        |  16 +++----
 util.c       |  27 ++++++++---
 14 files changed, 334 insertions(+), 256 deletions(-)

-- 
2.41.0