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authorDavid S. Miller <davem@davemloft.net>2017-08-09 16:28:45 -0700
committerDavid S. Miller <davem@davemloft.net>2017-08-09 16:28:45 -0700
commit3118e6e19da7b8d76b2456b880c74a9aa3a2268b (patch)
tree3060d11297c1195ef2d1f120d9c2247b4b1de4ae /include/net/tcp.h
parentfeca7d8c135bc1527b244fe817b8b6498066ccec (diff)
parent48fb6f4db940e92cfb16cd878cddd59ea6120d06 (diff)
downloadlinux-3118e6e19da7b8d76b2456b880c74a9aa3a2268b.tar.bz2
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
The UDP offload conflict is dealt with by simply taking what is in net-next where we have removed all of the UFO handling code entirely. The TCP conflict was a case of local variables in a function being removed from both net and net-next. In netvsc we had an assignment right next to where a missing set of u64 stats sync object inits were added. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/tcp.h')
-rw-r--r--include/net/tcp.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 999f3efe572b..afdab3781425 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1902,6 +1902,16 @@ extern void tcp_rack_advance(struct tcp_sock *tp, u8 sacked, u32 end_seq,
u64 xmit_time);
extern void tcp_rack_reo_timeout(struct sock *sk);
+/* At how many usecs into the future should the RTO fire? */
+static inline s64 tcp_rto_delta_us(const struct sock *sk)
+{
+ const struct sk_buff *skb = tcp_write_queue_head(sk);
+ u32 rto = inet_csk(sk)->icsk_rto;
+ u64 rto_time_stamp_us = skb->skb_mstamp + jiffies_to_usecs(rto);
+
+ return rto_time_stamp_us - tcp_sk(sk)->tcp_mstamp;
+}
+
/*
* Save and compile IPv4 options, return a pointer to it
*/