[SCTP]: Include ulpevents in socket receive buffer accounting.

Also introduces a sysctl option to configure the receive buffer
accounting policy to be either at socket or association level.
Default is all the associations on the same socket share the
receive buffer.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 0 deletions

diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index dc9dff396fad..f775d78aa59d 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -1050,6 +1050,9 @@ SCTP_STATIC __init int sctp_init(void)
         /* Sendbuffer growth        - do per-socket accounting */
         sctp_sndbuf_policy              = 0;
 
+        /* Rcvbuffer growth         - do per-socket accounting */
+        sctp_rcvbuf_policy              = 0;
+
         /* HB.interval              - 30 seconds */
         sctp_hb_interval                = SCTP_DEFAULT_TIMEOUT_HEARTBEAT;