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| author | Neil Horman | 2006-05-06 02:02:09 +0200 |
|---|---|---|
| committer | David S. Miller | 2006-05-06 02:02:09 +0200 |
| commit | 7c3ceb4fb9667f34f1599a062efecf4cdc4a4ce5 (patch) | |
| tree | e54921ec9e8cffac5fa3d4155d18f144d61ad878 /include/net/sctp | |
| parent | Merge master.kernel.org:/home/rmk/linux-2.6-mmc (diff) | |
| download | kernel-qcow2-linux-7c3ceb4fb9667f34f1599a062efecf4cdc4a4ce5.tar.gz kernel-qcow2-linux-7c3ceb4fb9667f34f1599a062efecf4cdc4a4ce5.tar.xz kernel-qcow2-linux-7c3ceb4fb9667f34f1599a062efecf4cdc4a4ce5.zip | |
[SCTP]: Allow spillover of receive buffer to avoid deadlock.
This patch fixes a deadlock situation in the receive path by allowing
temporary spillover of the receive buffer.
- If the chunk we receive has a tsn that immediately follows the ctsn,
accept it even if we run out of receive buffer space and renege data with
higher TSNs.
- Once we accept one chunk in a packet, accept all the remaining chunks
even if we run out of receive buffer space.
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Mark Butler <butlerm@middle.net>
Acked-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/sctp')
| -rw-r--r-- | include/net/sctp/structs.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index eba99f375517..7f4fea173fb1 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -712,6 +712,7 @@ struct sctp_chunk { __u8 tsn_gap_acked; /* Is this chunk acked by a GAP ACK? */ __s8 fast_retransmit; /* Is this chunk fast retransmitted? */ __u8 tsn_missing_report; /* Data chunk missing counter. */ + __u8 data_accepted; /* At least 1 chunk in this packet accepted */ }; void sctp_chunk_hold(struct sctp_chunk *); |