[NET]: Revert incorrect accept queue backlog changes.

This reverts two changes:

8488df894d05d6fa41c2bd298c335f944bb0e401
248f06726e866942b3d8ca8f411f9067713b7ff8

A backlog value of N really does mean allow "N + 1" connections
to queue to a listening socket.  This allows one to specify
"0" as the backlog and still get 1 connection.

Noticed by Gerrit Renker and Rick Jones.

Signed-off-by: David S. Miller <davem@davemloft.net>
2 files changed