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authorTom Herbert <therbert@google.com>2011-08-14 19:45:55 +0000
committerDavid S. Miller <davem@davemloft.net>2011-08-17 20:06:03 -0700
commitbdeab991918663aed38757904219e8398214334c (patch)
treebc6c02da7ed88e3e568677b4a35fb4e55de363de /include/net/sock.h
parent792df22cd0499b4e662d4618b0008fdcfef8b04e (diff)
rps: Add flag to skb to indicate rxhash is based on L4 tuple
The l4_rxhash flag was added to the skb structure to indicate that the rxhash value was computed over the 4 tuple for the packet which includes the port information in the encapsulated transport packet. This is used by the stack to preserve the rxhash value in __skb_rx_tunnel. Signed-off-by: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/sock.h')
-rw-r--r--include/net/sock.h15
1 files changed, 12 insertions, 3 deletions
diff --git a/include/net/sock.h b/include/net/sock.h
index 8e4062f165b..5ac682f73d6 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -686,16 +686,25 @@ static inline void sock_rps_reset_flow(const struct sock *sk)
#endif
}
-static inline void sock_rps_save_rxhash(struct sock *sk, u32 rxhash)
+static inline void sock_rps_save_rxhash(struct sock *sk,
+ const struct sk_buff *skb)
{
#ifdef CONFIG_RPS
- if (unlikely(sk->sk_rxhash != rxhash)) {
+ if (unlikely(sk->sk_rxhash != skb->rxhash)) {
sock_rps_reset_flow(sk);
- sk->sk_rxhash = rxhash;
+ sk->sk_rxhash = skb->rxhash;
}
#endif
}
+static inline void sock_rps_reset_rxhash(struct sock *sk)
+{
+#ifdef CONFIG_RPS
+ sock_rps_reset_flow(sk);
+ sk->sk_rxhash = 0;
+#endif
+}
+
#define sk_wait_event(__sk, __timeo, __condition) \
({ int __rc; \
release_sock(__sk); \