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| author | Kenjiro Nakayama <nakayamakenjiro@gmail.com> | 2014-04-17 01:25:01 +0900 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-04-20 18:18:54 -0400 |
| commit | 1536e2857bd38e3bcd19963fd6b3c3287b4747c4 (patch) | |
| tree | fa4df75de9373183582c877844bb42018d21b3ca | |
| parent | 6ff01dbb1130ff7e53d832884068e4c3a6a2ecec (diff) | |
| download | linux-stable-1536e2857bd38e3bcd19963fd6b3c3287b4747c4.tar.gz linux-stable-1536e2857bd38e3bcd19963fd6b3c3287b4747c4.tar.bz2 linux-stable-1536e2857bd38e3bcd19963fd6b3c3287b4747c4.zip | |
tcp: Add a TCP_FASTOPEN socket option to get a max backlog on its listner
This patch adds a TCP_FASTOPEN socket option to get a max backlog on its
listener to getsockopt().
Signed-off-by: Kenjiro Nakayama <nakayamakenjiro@gmail.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/ipv4/tcp.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 4bd6d52eeffb..eb1dde37e678 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -2916,6 +2916,14 @@ static int do_tcp_getsockopt(struct sock *sk, int level, case TCP_USER_TIMEOUT: val = jiffies_to_msecs(icsk->icsk_user_timeout); break; + + case TCP_FASTOPEN: + if (icsk->icsk_accept_queue.fastopenq != NULL) + val = icsk->icsk_accept_queue.fastopenq->max_qlen; + else + val = 0; + break; + case TCP_TIMESTAMP: val = tcp_time_stamp + tp->tsoffset; break; |