5045 use atomic_{inc,dec}_* instead of atomic_add_* Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Garrett D'Amore <garrett@damore.org> Approved by: Robert Mustacchi <rm@joyent.com>

PSARC/2009/590 Socket Filter Framework 6939085 Socket Filter Framework 6802067 connect_failed kernel socket callback is not triggered 6776450 time spent in tcp_close could be reduced/deferred to a worker thread 6828586 assertion failed: family == 26, file: ../../common/fs/sockfs/socksyscalls.c, line: 1608 6802078 kernel socket 'newconn' callback is passing rcv queue size as an argument