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authorLinus Torvalds <torvalds@linux-foundation.org>2009-12-08 07:55:01 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-08 07:55:01 -0800
commitd7fc02c7bae7b1cf69269992cf880a43a350cdaa (patch)
treea43d56fa72913a1cc98a0bbebe054d08581b3a7c /net/sctp/output.c
parentee1262dbc65ce0b6234a915d8432171e8d77f518 (diff)
parent28b4d5cc17c20786848cdc07b7ea237a309776bb (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1815 commits) mac80211: fix reorder buffer release iwmc3200wifi: Enable wimax core through module parameter iwmc3200wifi: Add wifi-wimax coexistence mode as a module parameter iwmc3200wifi: Coex table command does not expect a response iwmc3200wifi: Update wiwi priority table iwlwifi: driver version track kernel version iwlwifi: indicate uCode type when fail dump error/event log iwl3945: remove duplicated event logging code b43: fix two warnings ipw2100: fix rebooting hang with driver loaded cfg80211: indent regulatory messages with spaces iwmc3200wifi: fix NULL pointer dereference in pmkid update mac80211: Fix TX status reporting for injected data frames ath9k: enable 2GHz band only if the device supports it airo: Fix integer overflow warning rt2x00: Fix padding bug on L2PAD devices. WE: Fix set events not propagated b43legacy: avoid PPC fault during resume b43: avoid PPC fault during resume tcp: fix a timewait refcnt race ... Fix up conflicts due to sysctl cleanups (dead sysctl_check code and CTL_UNNUMBERED removed) in kernel/sysctl_check.c net/ipv4/sysctl_net_ipv4.c net/ipv6/addrconf.c net/sctp/sysctl.c
Diffstat (limited to 'net/sctp/output.c')
-rw-r--r--net/sctp/output.c50
1 files changed, 13 insertions, 37 deletions
diff --git a/net/sctp/output.c b/net/sctp/output.c
index 5cbda8f1ddf..7c558936343 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -429,23 +429,22 @@ int sctp_packet_transmit(struct sctp_packet *packet)
list_del_init(&chunk->list);
if (sctp_chunk_is_data(chunk)) {
- if (!chunk->has_tsn) {
- sctp_chunk_assign_ssn(chunk);
- sctp_chunk_assign_tsn(chunk);
-
- /* 6.3.1 C4) When data is in flight and when allowed
- * by rule C5, a new RTT measurement MUST be made each
- * round trip. Furthermore, new RTT measurements
- * SHOULD be made no more than once per round-trip
- * for a given destination transport address.
- */
+ if (!chunk->resent) {
+
+ /* 6.3.1 C4) When data is in flight and when allowed
+ * by rule C5, a new RTT measurement MUST be made each
+ * round trip. Furthermore, new RTT measurements
+ * SHOULD be made no more than once per round-trip
+ * for a given destination transport address.
+ */
if (!tp->rto_pending) {
chunk->rtt_in_progress = 1;
tp->rto_pending = 1;
}
- } else
- chunk->resent = 1;
+ }
+
+ chunk->resent = 1;
has_data = 1;
}
@@ -557,8 +556,6 @@ int sctp_packet_transmit(struct sctp_packet *packet)
struct timer_list *timer;
unsigned long timeout;
- tp->last_time_used = jiffies;
-
/* Restart the AUTOCLOSE timer when sending data. */
if (sctp_state(asoc, ESTABLISHED) && asoc->autoclose) {
timer = &asoc->timers[SCTP_EVENT_TIMEOUT_AUTOCLOSE];
@@ -617,7 +614,6 @@ static sctp_xmit_t sctp_packet_can_append_data(struct sctp_packet *packet,
sctp_xmit_t retval = SCTP_XMIT_OK;
size_t datasize, rwnd, inflight, flight_size;
struct sctp_transport *transport = packet->transport;
- __u32 max_burst_bytes;
struct sctp_association *asoc = transport->asoc;
struct sctp_outq *q = &asoc->outqueue;
@@ -650,28 +646,6 @@ static sctp_xmit_t sctp_packet_can_append_data(struct sctp_packet *packet,
}
}
- /* sctpimpguide-05 2.14.2
- * D) When the time comes for the sender to
- * transmit new DATA chunks, the protocol parameter Max.Burst MUST
- * first be applied to limit how many new DATA chunks may be sent.
- * The limit is applied by adjusting cwnd as follows:
- * if ((flightsize + Max.Burst * MTU) < cwnd)
- * cwnd = flightsize + Max.Burst * MTU
- */
- max_burst_bytes = asoc->max_burst * asoc->pathmtu;
- if ((flight_size + max_burst_bytes) < transport->cwnd) {
- transport->cwnd = flight_size + max_burst_bytes;
- SCTP_DEBUG_PRINTK("%s: cwnd limited by max_burst: "
- "transport: %p, cwnd: %d, "
- "ssthresh: %d, flight_size: %d, "
- "pba: %d\n",
- __func__, transport,
- transport->cwnd,
- transport->ssthresh,
- transport->flight_size,
- transport->partial_bytes_acked);
- }
-
/* RFC 2960 6.1 Transmission of DATA Chunks
*
* B) At any given time, the sender MUST NOT transmit new data
@@ -747,6 +721,8 @@ static void sctp_packet_append_data(struct sctp_packet *packet,
/* Has been accepted for transmission. */
if (!asoc->peer.prsctp_capable)
chunk->msg->can_abandon = 0;
+ sctp_chunk_assign_tsn(chunk);
+ sctp_chunk_assign_ssn(chunk);
}
static sctp_xmit_t sctp_packet_will_fit(struct sctp_packet *packet,