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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2010-04-29 02:31:51 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-04-29 02:31:51 +0400 |
| commit | f84af32cbca70a3c6d30463dc08c7984af11c277 (patch) | |
| tree | 06ede4b3ed91be899f8f29b4c7eb1fb76f1ade97 /include | |
| parent | 4b0b72f7dd617b13abd1b04c947e15873e011a24 (diff) | |
| download | linux-f84af32cbca70a3c6d30463dc08c7984af11c277.tar.xz | |
net: ip_queue_rcv_skb() helper
When queueing a skb to socket, we can immediately release its dst if
target socket do not use IP_CMSG_PKTINFO.
tcp_data_queue() can drop dst too.
This to benefit from a hot cache line and avoid the receiver, possibly
on another cpu, to dirty this cache line himself.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/ip.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/ip.h b/include/net/ip.h index a84ceb692687..8149b77cea9b 100644 --- a/include/net/ip.h +++ b/include/net/ip.h @@ -393,6 +393,7 @@ extern int ip_options_rcv_srr(struct sk_buff *skb); * Functions provided by ip_sockglue.c */ +extern int ip_queue_rcv_skb(struct sock *sk, struct sk_buff *skb); extern void ip_cmsg_recv(struct msghdr *msg, struct sk_buff *skb); extern int ip_cmsg_send(struct net *net, struct msghdr *msg, struct ipcm_cookie *ipc); |