diff options
| author | Eric Dumazet <edumazet@google.com> | 2016-04-01 15:52:20 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-04-05 02:11:20 (GMT) |
| commit | 9caad864151e525929d323de96cad382da49c3b2 (patch) | |
| tree | 76935ef9f746ebccd30c6cb397bc920ad1cb4b98 /net/core | |
| parent | 532182cd610782db8c18230c2747626562032205 (diff) | |
| download | linux-9caad864151e525929d323de96cad382da49c3b2.tar.xz | |
tcp: increment sk_drops for listeners
Goal: packets dropped by a listener are accounted for.
This adds tcp_listendrop() helper, and clears sk_drops in sk_clone_lock()
so that children do not inherit their parent drop count.
Note that we no longer increment LINUX_MIB_LISTENDROPS counter when
sending a SYNCOOKIE, since the SYN packet generated a SYNACK.
We already have a separate LINUX_MIB_SYNCOOKIESSENT
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/sock.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/core/sock.c b/net/core/sock.c index 7a6a063..2f517ea 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -1525,6 +1525,7 @@ struct sock *sk_clone_lock(const struct sock *sk, const gfp_t priority) newsk->sk_dst_cache = NULL; newsk->sk_wmem_queued = 0; newsk->sk_forward_alloc = 0; + atomic_set(&newsk->sk_drops, 0); newsk->sk_send_head = NULL; newsk->sk_userlocks = sk->sk_userlocks & ~SOCK_BINDPORT_LOCK; |