diff options
| author |   David Majnemer <majnemer@google.com> | 2013-05-31 13:15:38 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2013-05-31 16:24:43 -0700 |
| commit | c3f1dbaf6e281642848b78fe101764170c15f168 (patch) | |
| tree | d7cde019621827feae6b138f451876fa1aef6817 | |
| parent | sctp: Correct byte order of access to skb->{network, transport}_header (diff) | |
| download | linux-dev-c3f1dbaf6e281642848b78fe101764170c15f168.tar.xz linux-dev-c3f1dbaf6e281642848b78fe101764170c15f168.zip | |
net: Update RFS target at poll for tcp/udp
The current state of affairs is that read()/write() will setup
RFS (Receive Flow Steering) for internet protocol sockets while
poll()/epoll() does not.
When poll() gets called with a TCP or UDP socket, we should update
the flow target.
This permits to RFS (if enabled) to select the appropriate CPU for
following incoming packets.
Note: Only connected UDP sockets can benefit from RFS.
Signed-off-by: David Majnemer <majnemer@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Paul Turner <pjt@google.com>
Cc: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/ipv4/tcp.c | 2 | ||||
| -rw-r--r-- | net/ipv4/udp.c | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 1f58594d5a85..b5d4ad988053 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -436,6 +436,8 @@ unsigned int tcp_poll(struct file *file, struct socket *sock, poll_table *wait) struct sock *sk = sock->sk; const struct tcp_sock *tp = tcp_sk(sk); + sock_rps_record_flow(sk); + sock_poll_wait(file, sk_sleep(sk), wait); if (sk->sk_state == TCP_LISTEN) return inet_csk_listen_poll(sk); diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index aa5eff46d137..c7338ec79cc0 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -1967,6 +1967,8 @@ unsigned int udp_poll(struct file *file, struct socket *sock, poll_table *wait) unsigned int mask = datagram_poll(file, sock, wait); struct sock *sk = sock->sk; + sock_rps_record_flow(sk); + /* Check for false positives due to checksum errors */ if ((mask & POLLRDNORM) && !(file->f_flags & O_NONBLOCK) && !(sk->sk_shutdown & RCV_SHUTDOWN) && !first_packet_length(sk)) |