K 10
svn:author
V 3
jtl
K 8
svn:date
V 27
2018-04-20T15:44:29.960075Z
K 7
svn:log
V 584
MFC r307083:
 Currently, when tcp_input() receives a packet on a session that matches a
 TCPCB, it checks (so->so_options & SO_ACCEPTCONN) to determine whether or
 not the socket is a listening socket. However, this causes the code to
 access a different cacheline. If we first check if the socket is in the
 LISTEN state, we can avoid accessing so->so_options when processing packets
 received for ESTABLISHED sessions.

 If INVARIANTS is defined, the code still needs to access both variables to
 check that so->so_options is consistent with the state.

Sponsored by:	Netflix, Inc.

END