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authorNeil Horman <nhorman@tuxdriver.com>2007-08-15 16:07:44 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-10-10 16:48:09 -0700
commit4d93df0abd50b9c9e2d4561439a1a1d21ec5e68f (patch)
tree47e5bde0c37ed7ce68032ffa9110f252533fc710 /include
parent13c99b248f06e0b71d925f162d8e3b0084886a21 (diff)
downloadop-kernel-dev-4d93df0abd50b9c9e2d4561439a1a1d21ec5e68f.zip
op-kernel-dev-4d93df0abd50b9c9e2d4561439a1a1d21ec5e68f.tar.gz
[SCTP]: Rewrite of sctp buffer management code
This patch introduces autotuning to the sctp buffer management code similar to the TCP. The buffer space can be grown if the advertised receive window still has room. This might happen if small message sizes are used, which is common in telecom environmens. New tunables are introduced that provide limits to buffer growth and memory pressure is entered if to much buffer spaces is used. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/net/sctp/sctp.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index c9cc00c..d5a1ddc 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -469,6 +469,11 @@ static inline void sctp_skb_set_owner_r(struct sk_buff *skb, struct sock *sk)
skb->sk = sk;
skb->destructor = sctp_sock_rfree;
atomic_add(event->rmem_len, &sk->sk_rmem_alloc);
+ /*
+ * This mimics the behavior of
+ * sk_stream_set_owner_r
+ */
+ sk->sk_forward_alloc -= event->rmem_len;
}
/* Tests if the list has one and only one entry. */
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