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authorGerrit Renker <gerrit@erg.abdn.ac.uk>2007-03-09 13:47:58 -0800
committerDavid S. Miller <davem@davemloft.net>2007-03-09 13:47:58 -0800
commitaabb601b0f08b909b650f1a7bfa1e8d9b5a8d999 (patch)
treec3060d0005f6b035b43fe4e5855a1d514b43e589
parentc4e38f41e34ad853651d66227aae23e48457dce0 (diff)
downloadop-kernel-dev-aabb601b0f08b909b650f1a7bfa1e8d9b5a8d999.zip
op-kernel-dev-aabb601b0f08b909b650f1a7bfa1e8d9b5a8d999.tar.gz
[DCCP]: Initialise write_xmit_timer also on passive sockets
The TX CCID needs the write_xmit_timer for delaying packet sends. Previously this timer was only activated on active (connecting) sockets. This patch initialises the write_xmit_timer in sync with the other timers, i.e. the timer will be ready on any socket. This is used by applications with a listening socket which start to stream after receiving an initiation by the client. The write_xmit_timer is stopped when the application closes, as before. Was tested to work and to remove the timer bug reported on dccp@vger. Also moved timer initialisation into timer.c (static). Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Acked-by: Ian McDonald <ian.mcdonald@jandi.co.nz> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/dccp/dccp.h1
-rw-r--r--net/dccp/output.c16
-rw-r--r--net/dccp/timer.c25
3 files changed, 26 insertions, 16 deletions
diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h
index e33a9ed..a0e7cd1 100644
--- a/net/dccp/dccp.h
+++ b/net/dccp/dccp.h
@@ -191,6 +191,7 @@ extern void dccp_send_sync(struct sock *sk, const u64 seq,
const enum dccp_pkt_type pkt_type);
extern void dccp_write_xmit(struct sock *sk, int block);
+extern void dccp_write_xmit_timer(unsigned long data);
extern void dccp_write_space(struct sock *sk);
extern void dccp_init_xmit_timers(struct sock *sk);
diff --git a/net/dccp/output.c b/net/dccp/output.c
index 3282f2f..aa21cc4 100644
--- a/net/dccp/output.c
+++ b/net/dccp/output.c
@@ -213,19 +213,6 @@ do_interrupted:
goto out;
}
-static void dccp_write_xmit_timer(unsigned long data) {
- struct sock *sk = (struct sock *)data;
- struct dccp_sock *dp = dccp_sk(sk);
-
- bh_lock_sock(sk);
- if (sock_owned_by_user(sk))
- sk_reset_timer(sk, &dp->dccps_xmit_timer, jiffies+1);
- else
- dccp_write_xmit(sk, 0);
- bh_unlock_sock(sk);
- sock_put(sk);
-}
-
void dccp_write_xmit(struct sock *sk, int block)
{
struct dccp_sock *dp = dccp_sk(sk);
@@ -434,9 +421,6 @@ static inline void dccp_connect_init(struct sock *sk)
dp->dccps_gar = dp->dccps_iss;
icsk->icsk_retransmits = 0;
- init_timer(&dp->dccps_xmit_timer);
- dp->dccps_xmit_timer.data = (unsigned long)sk;
- dp->dccps_xmit_timer.function = dccp_write_xmit_timer;
}
int dccp_connect(struct sock *sk)
diff --git a/net/dccp/timer.c b/net/dccp/timer.c
index 41ea0f6..b038a0a 100644
--- a/net/dccp/timer.c
+++ b/net/dccp/timer.c
@@ -261,8 +261,33 @@ out:
sock_put(sk);
}
+/* Transmit-delay timer: used by the CCIDs to delay actual send time */
+void dccp_write_xmit_timer(unsigned long data)
+{
+ struct sock *sk = (struct sock *)data;
+ struct dccp_sock *dp = dccp_sk(sk);
+
+ bh_lock_sock(sk);
+ if (sock_owned_by_user(sk))
+ sk_reset_timer(sk, &dp->dccps_xmit_timer, jiffies+1);
+ else
+ dccp_write_xmit(sk, 0);
+ bh_unlock_sock(sk);
+ sock_put(sk);
+}
+
+static void dccp_init_write_xmit_timer(struct sock *sk)
+{
+ struct dccp_sock *dp = dccp_sk(sk);
+
+ init_timer(&dp->dccps_xmit_timer);
+ dp->dccps_xmit_timer.data = (unsigned long)sk;
+ dp->dccps_xmit_timer.function = dccp_write_xmit_timer;
+}
+
void dccp_init_xmit_timers(struct sock *sk)
{
+ dccp_init_write_xmit_timer(sk);
inet_csk_init_xmit_timers(sk, &dccp_write_timer, &dccp_delack_timer,
&dccp_keepalive_timer);
}
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