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authorEric Dumazet <edumazet@google.com>2016-09-07 08:34:11 -0700
committerDavid S. Miller <davem@davemloft.net>2016-09-08 16:08:10 -0700
commit76061f631c2ea4ab9c4d66f3a96ecc5737f5aaf7 (patch)
treeb60c15dd39cb9e40f06d49dafa65402380ae5693 /net
parent40e3012e6ea715e957347477a980145210735267 (diff)
downloadlinux-stericsson-76061f631c2ea4ab9c4d66f3a96ecc5737f5aaf7.tar.gz
tcp: fastopen: avoid negative sk_forward_alloc
When DATA and/or FIN are carried in a SYN/ACK message or SYN message, we append an skb in socket receive queue, but we forget to call sk_forced_mem_schedule(). Effect is that the socket has a negative sk->sk_forward_alloc as long as the message is not read by the application. Josh Hunt fixed a similar issue in commit d22e15371811 ("tcp: fix tcp fin memory accounting") Fixes: 168a8f58059a ("tcp: TCP Fast Open Server - main code path") Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Josh Hunt <johunt@akamai.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/ipv4/tcp_fastopen.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv4/tcp_fastopen.c b/net/ipv4/tcp_fastopen.c
index 62a5751d4fe1..4e777a3243f9 100644
--- a/net/ipv4/tcp_fastopen.c
+++ b/net/ipv4/tcp_fastopen.c
@@ -150,6 +150,7 @@ void tcp_fastopen_add_skb(struct sock *sk, struct sk_buff *skb)
tp->segs_in = 0;
tcp_segs_in(tp, skb);
__skb_pull(skb, tcp_hdrlen(skb));
+ sk_forced_mem_schedule(sk, skb->truesize);
skb_set_owner_r(skb, sk);
TCP_SKB_CB(skb)->seq++;