[net-next PATCH v3 0/3] net: reserve ports for applications using fixed port numbers

(Resending to netdev since I've misspelled the email address. Apologies if you receive multiple copies)

This patch series is based on Amerigo's v2 but it now uses a bitmap
for port reservation.

I've ran a while (1) { bind(0) } test (with ip_local_port_range
1024 65000) to see if there is any performance difference between the
two approaches (ranges vs bitmap). I could not detect any significant
difference, both cases scored in 2.76s +/- 0.01 on my setup.

I've based this patch series on current net-next, but it contains a
significant non networking part. Please let me know if I should handle
this differently.

Octavian Purdila (3):
  sysctl: refactor integer handling proc code
  sysctl: add proc_dobitmap
  net: reserve ports for applications using fixed port numbers

 Documentation/networking/ip-sysctl.txt |   12 +
 drivers/infiniband/core/cma.c          |    7 +-
 include/linux/sysctl.h                 |    2 +
 include/net/ip.h                       |    6 +
 kernel/sysctl.c                        |  374 +++++++++++++++++++-------------
 net/ipv4/inet_connection_sock.c        |    5 +
 net/ipv4/inet_hashtables.c             |    2 +
 net/ipv4/sysctl_net_ipv4.c             |    7 +
 net/ipv4/udp.c                         |    3 +-
 net/sctp/socket.c                      |    2 +
 10 files changed, 264 insertions(+), 156 deletions(-)