diff options
| author | Ingo Molnar <mingo@kernel.org> | 2016-05-05 09:41:36 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-05-05 09:41:36 +0300 |
| commit | f3391a160b22f8e006f3fb8ef39aa01da749fbf0 (patch) | |
| tree | 9a8f61fe1a3dd0d12e7511567b2344f80f5aa531 /net/ipv4/tcp_output.c | |
| parent | d7847a7017b2a2759dd5590c0cffdbdf2994918e (diff) | |
| parent | 04974df8049fc4240d22759a91e035082ccd18b4 (diff) | |
| download | linux-f3391a160b22f8e006f3fb8ef39aa01da749fbf0.tar.xz | |
Merge tag 'v4.6-rc6' into x86/cpu, to refresh the tree
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'net/ipv4/tcp_output.c')
| -rw-r--r-- | net/ipv4/tcp_output.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 7d2dc015cd19..441ae9da3a23 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -2441,6 +2441,20 @@ u32 __tcp_select_window(struct sock *sk) return window; } +void tcp_skb_collapse_tstamp(struct sk_buff *skb, + const struct sk_buff *next_skb) +{ + const struct skb_shared_info *next_shinfo = skb_shinfo(next_skb); + u8 tsflags = next_shinfo->tx_flags & SKBTX_ANY_TSTAMP; + + if (unlikely(tsflags)) { + struct skb_shared_info *shinfo = skb_shinfo(skb); + + shinfo->tx_flags |= tsflags; + shinfo->tskey = next_shinfo->tskey; + } +} + /* Collapses two adjacent SKB's during retransmission. */ static void tcp_collapse_retrans(struct sock *sk, struct sk_buff *skb) { @@ -2484,6 +2498,8 @@ static void tcp_collapse_retrans(struct sock *sk, struct sk_buff *skb) tcp_adjust_pcount(sk, next_skb, tcp_skb_pcount(next_skb)); + tcp_skb_collapse_tstamp(skb, next_skb); + sk_wmem_free_skb(sk, next_skb); } |