[XFRM]: Fix aevent timer.

Send aevent immediately if we have sent nothing since last timer and
this is the first packet.

Fixes a corner case when packet threshold is very high, the timer low
and a very low packet rate input which is bursty.

Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 8 insertions, 0 deletions

diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 0d5529c382e8..afa508d92c93 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -143,6 +143,11 @@ struct xfrm_state
         /* Replay detection state at the time we sent the last notification */
         struct xfrm_replay_state preplay;
 
+        /* internal flag that only holds state for delayed aevent at the
+         * moment
+        */
+        u32                     xflags;
+
         /* Replay detection notification settings */
         u32                     replay_maxage;
         u32                     replay_maxdiff;
@@ -168,6 +173,9 @@ struct xfrm_state
         void                    *data;
 };
 
+/* xflags - make enum if more show up */
+#define XFRM_TIME_DEFER 1
+
 enum {
         XFRM_STATE_VOID,
         XFRM_STATE_ACQ,