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authorDavid S. Miller <davem@sunset.davemloft.net>2007-03-06 11:21:05 -0800
committerDavid S. Miller <davem@sunset.davemloft.net>2007-03-06 11:21:05 -0800
commit64a146513f8f12ba204b7bf5cb7e9505594ead42 (patch)
tree849f875501ac6f08cf309c5b13cf21ed687974e2
parent187f5f84ef14a07dccf5f4503099708d60f6a724 (diff)
downloadop-kernel-dev-64a146513f8f12ba204b7bf5cb7e9505594ead42.zip
op-kernel-dev-64a146513f8f12ba204b7bf5cb7e9505594ead42.tar.gz
[NET]: Revert incorrect accept queue backlog changes.
This reverts two changes: 8488df894d05d6fa41c2bd298c335f944bb0e401 248f06726e866942b3d8ca8f411f9067713b7ff8 A backlog value of N really does mean allow "N + 1" connections to queue to a listening socket. This allows one to specify "0" as the backlog and still get 1 connection. Noticed by Gerrit Renker and Rick Jones. Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--include/net/sock.h2
-rw-r--r--net/unix/af_unix.c6
2 files changed, 4 insertions, 4 deletions
diff --git a/include/net/sock.h b/include/net/sock.h
index 849c7df..2c7d60c 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -426,7 +426,7 @@ static inline void sk_acceptq_added(struct sock *sk)
static inline int sk_acceptq_is_full(struct sock *sk)
{
- return sk->sk_ack_backlog >= sk->sk_max_ack_backlog;
+ return sk->sk_ack_backlog > sk->sk_max_ack_backlog;
}
/*
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 51ca438..6069716 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -934,7 +934,7 @@ static long unix_wait_for_peer(struct sock *other, long timeo)
sched = !sock_flag(other, SOCK_DEAD) &&
!(other->sk_shutdown & RCV_SHUTDOWN) &&
- (skb_queue_len(&other->sk_receive_queue) >=
+ (skb_queue_len(&other->sk_receive_queue) >
other->sk_max_ack_backlog);
unix_state_runlock(other);
@@ -1008,7 +1008,7 @@ restart:
if (other->sk_state != TCP_LISTEN)
goto out_unlock;
- if (skb_queue_len(&other->sk_receive_queue) >=
+ if (skb_queue_len(&other->sk_receive_queue) >
other->sk_max_ack_backlog) {
err = -EAGAIN;
if (!timeo)
@@ -1381,7 +1381,7 @@ restart:
}
if (unix_peer(other) != sk &&
- (skb_queue_len(&other->sk_receive_queue) >=
+ (skb_queue_len(&other->sk_receive_queue) >
other->sk_max_ack_backlog)) {
if (!timeo) {
err = -EAGAIN;
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