Currently, /proc/net/protocols displays socket counts only for TCP/TCPv6
protocols

We can provide unix_nr_socks for free here, this counter being
already maintained in af_unix

Before patch :

# grep UNIX /proc/net/protocols
UNIX       428     -1      -1   NI       0   yes  kernel

After patch :

# grep UNIX /proc/net/protocols
UNIX       428     98      -1   NI       0   yes  kernel

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
---
 net/unix/af_unix.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)