diff options
| author | Willem de Bruijn | 2017-12-23 01:00:18 +0100 |
|---|---|---|
| committer | David S. Miller | 2017-12-27 22:44:13 +0100 |
| commit | 111856c758d9a06145da446e0db8f71988eebf02 (patch) | |
| tree | fed027fc1231358285e01c657323ea9947b1a44f /net | |
| parent | skbuff: in skb_segment, call zerocopy functions once per nskb (diff) | |
| download | kernel-qcow2-linux-111856c758d9a06145da446e0db8f71988eebf02.tar.gz kernel-qcow2-linux-111856c758d9a06145da446e0db8f71988eebf02.tar.xz kernel-qcow2-linux-111856c758d9a06145da446e0db8f71988eebf02.zip | |
tcp: push full zerocopy packets
Skbs that reach MAX_SKB_FRAGS cannot be extended further. Do the
same for zerocopy frags as non-zerocopy frags and set the PSH bit.
This improves GRO assembly.
Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv4/tcp.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 67d39b79c801..44102484a76f 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -1371,8 +1371,10 @@ new_segment: pfrag->offset += copy; } else { err = skb_zerocopy_iter_stream(sk, skb, msg, copy, uarg); - if (err == -EMSGSIZE || err == -EEXIST) + if (err == -EMSGSIZE || err == -EEXIST) { + tcp_mark_push(tp, skb); goto new_segment; + } if (err < 0) goto do_error; copy = err; |