diff options
| author | Eric Dumazet <edumazet@google.com> | 2015-10-02 11:43:32 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-10-03 04:32:41 -0700 |
| commit | 079096f103faca2dd87342cca6f23d4b34da8871 (patch) | |
| tree | fa3fb0fdc064f1611c464384e70a7a402179808f /include/net/tcp.h | |
| parent | 2feda34192a379f8b35a7c6c5826b2f23e884f32 (diff) | |
| download | linux-079096f103faca2dd87342cca6f23d4b34da8871.tar.bz2 | |
tcp/dccp: install syn_recv requests into ehash table
In this patch, we insert request sockets into TCP/DCCP
regular ehash table (where ESTABLISHED and TIMEWAIT sockets
are) instead of using the per listener hash table.
ACK packets find SYN_RECV pseudo sockets without having
to find and lock the listener.
In nominal conditions, this halves pressure on listener lock.
Note that this will allow for SO_REUSEPORT refinements,
so that we can select a listener using cpu/numa affinities instead
of the prior 'consistent hash', since only SYN packets will
apply this selection logic.
We will shrink listen_sock in the following patch to ease
code review.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Ying Cai <ycai@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/tcp.h')
| -rw-r--r-- | include/net/tcp.h | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h index a26341d2ad67..225e9561af35 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -1618,7 +1618,6 @@ static inline bool tcp_stream_is_thin(struct tcp_sock *tp) /* /proc */ enum tcp_seq_states { TCP_SEQ_STATE_LISTENING, - TCP_SEQ_STATE_OPENREQ, TCP_SEQ_STATE_ESTABLISHED, }; @@ -1717,8 +1716,6 @@ struct tcp_request_sock_ops { int (*send_synack)(const struct sock *sk, struct dst_entry *dst, struct flowi *fl, struct request_sock *req, u16 queue_mapping, struct tcp_fastopen_cookie *foc); - void (*queue_hash_add)(struct sock *sk, struct request_sock *req, - const unsigned long timeout); }; #ifdef CONFIG_SYN_COOKIES |