| Message ID | 1438124526-2129341-3-git-send-email-tom@herbertland.com |
|---|---|
| State | Accepted, archived |
| Delegated to: | David Miller |
| Headers | show |
diff --git a/include/net/sock.h b/include/net/sock.h index fe735c4..24aa75c 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -1695,6 +1695,12 @@ static inline void sk_set_txhash(struct sock *sk) sk->sk_txhash = 1; } +static inline void sk_rethink_txhash(struct sock *sk) +{ + if (sk->sk_txhash) + sk_set_txhash(sk); +} + static inline struct dst_entry * __sk_dst_get(struct sock *sk) { @@ -1719,6 +1725,8 @@ static inline void dst_negative_advice(struct sock *sk) { struct dst_entry *ndst, *dst = __sk_dst_get(sk); + sk_rethink_txhash(sk); + if (dst && dst->ops->negative_advice) { ndst = dst->ops->negative_advice(dst);
When a connection is failing a transport protocol calls dst_negative_advice to try to get a better route. This patch includes changing the sk_txhash in that function. This provides a rudimentary method to try to find a different path in the network since sk_txhash affects ECMP on the local host and through the network (via flow labels or UDP source port in encapsulation). Signed-off-by: Tom Herbert <tom@herbertland.com> --- include/net/sock.h | 8 ++++++++ 1 file changed, 8 insertions(+)