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authorSridhar Samudrala2006-06-27 13:29:00 -0700
committerDavid S. Miller2006-06-29 16:57:57 -0700
commit47da8ee681d04e68ca1b1812c10e28162150d453 (patch)
tree05b9abc2438abe0e9ecef1b6632a9b114e6cb55b /net/ipv6/tcp_ipv6.c
parentc7bdb545d23026b18be53289fd866d1ac07f5f8c (diff)
[TCP]: Export accept queue len of a TCP listening socket via rx_queue
While debugging a TCP server hang issue, we noticed that currently there is no way for a user to get the acceptq backlog value for a TCP listen socket. All the standard networking utilities that display socket info like netstat, ss and /proc/net/tcp have 2 fields called rx_queue and tx_queue. These fields do not mean much for listening sockets. This patch uses one of these unused fields(rx_queue) to export the accept queue len for listening sockets. Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/tcp_ipv6.c')
-rw-r--r--net/ipv6/tcp_ipv6.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index a50eb306e9e2..b36d5b2e7c30 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1469,7 +1469,8 @@ static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i)
dest->s6_addr32[0], dest->s6_addr32[1],
dest->s6_addr32[2], dest->s6_addr32[3], destp,
sp->sk_state,
- tp->write_seq-tp->snd_una, tp->rcv_nxt-tp->copied_seq,
+ tp->write_seq-tp->snd_una,
+ (sp->sk_state == TCP_LISTEN) ? sp->sk_ack_backlog : (tp->rcv_nxt - tp->copied_seq),
timer_active,
jiffies_to_clock_t(timer_expires - jiffies),
icsk->icsk_retransmits,