diff options
| author | Eliezer Tamir <[email protected]> | 2013-06-10 08:40:10 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2013-06-11 04:22:36 +0000 |
| commit | d30e383bb856f614ddb5bbbb5a7d3f86240e41ec (patch) | |
| tree | cae914154ff4a50fcf9ac314a70b347e09f20efe /net/ipv4/tcp_ipv4.c | |
| parent | udp: add low latency socket poll support (diff) | |
| download | kernel-d30e383bb856f614ddb5bbbb5a7d3f86240e41ec.tar.gz kernel-d30e383bb856f614ddb5bbbb5a7d3f86240e41ec.zip | |
tcp: add low latency socket poll support.
Adds low latency socket poll support for TCP.
In tcp_v[46]_rcv() add a call to sk_mark_ll() to copy the napi_id
from the skb to the sk.
In tcp_recvmsg(), when there is no data in the socket we busy-poll.
This is a good example of how to add busy-poll support to more protocols.
Signed-off-by: Alexander Duyck <[email protected]>
Signed-off-by: Jesse Brandeburg <[email protected]>
Signed-off-by: Eliezer Tamir <[email protected]>
Acked-by: Eric Dumazet <[email protected]>
Tested-by: Willem de Bruijn <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'net/ipv4/tcp_ipv4.c')
| -rw-r--r-- | net/ipv4/tcp_ipv4.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 289039b4d8de..1063bb83e342 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -75,6 +75,7 @@ #include <net/netdma.h> #include <net/secure_seq.h> #include <net/tcp_memcontrol.h> +#include <net/ll_poll.h> #include <linux/inet.h> #include <linux/ipv6.h> @@ -1993,6 +1994,7 @@ process: if (sk_filter(sk, skb)) goto discard_and_relse; + sk_mark_ll(sk, skb); skb->dev = NULL; bh_lock_sock_nested(sk); |