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authorDavid S. Miller <davem@davemloft.net>2019-06-18 05:48:13 +0300
committerDavid S. Miller <davem@davemloft.net>2019-06-18 06:20:36 +0300
commit13091aa30535b719e269f20a7bc34002bf5afae5 (patch)
treebd17956c3ce606a119fadbd43bfa1c0c10006984 /net/ipv4/tcp_output.c
parentf97252a8c33f0e02f4ffbf61dc94cd38164007bc (diff)
parent29f785ff76b65696800b75c3d8e0b58e603bb1d0 (diff)
downloadlinux-13091aa30535b719e269f20a7bc34002bf5afae5.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Honestly all the conflicts were simple overlapping changes, nothing really interesting to report. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_output.c')
-rw-r--r--net/ipv4/tcp_output.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index d954ff9069e8..f016bb516dd6 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -1298,6 +1298,11 @@ int tcp_fragment(struct sock *sk, enum tcp_queue tcp_queue,
if (nsize < 0)
nsize = 0;
+ if (unlikely((sk->sk_wmem_queued >> 1) > sk->sk_sndbuf)) {
+ NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPWQUEUETOOBIG);
+ return -ENOMEM;
+ }
+
if (skb_unclone(skb, gfp))
return -ENOMEM;
@@ -1456,8 +1461,7 @@ static inline int __tcp_mtu_to_mss(struct sock *sk, int pmtu)
mss_now -= icsk->icsk_ext_hdr_len;
/* Then reserve room for full set of TCP options and 8 bytes of data */
- if (mss_now < 48)
- mss_now = 48;
+ mss_now = max(mss_now, sock_net(sk)->ipv4.sysctl_tcp_min_snd_mss);
return mss_now;
}
@@ -2761,7 +2765,7 @@ static bool tcp_collapse_retrans(struct sock *sk, struct sk_buff *skb)
if (next_skb_size <= skb_availroom(skb))
skb_copy_bits(next_skb, 0, skb_put(skb, next_skb_size),
next_skb_size);
- else if (!skb_shift(skb, next_skb, next_skb_size))
+ else if (!tcp_skb_shift(skb, next_skb, 1, next_skb_size))
return false;
}
tcp_highest_sack_replace(sk, next_skb, skb);