If V_maxnipq is set to zero, drain the queue here and now, instead of

relying on timeouts.

Sponsored by:	Nginx, Inc.

1 files changed, 4 insertions, 4 deletions

diff --git a/sys/netinet/ip_input.c b/sys/netinet/ip_input.c
index 21fec1a..71db168 100644
--- a/sys/netinet/ip_input.c
+++ b/sys/netinet/ip_input.c
@@ -826,12 +826,12 @@ maxnipq_update(void)
 	if (V_maxnipq > 0)
 		uma_zone_set_max(V_ipq_zone, V_maxnipq);
 	/*
-	 * Zero specifies no further fragment queue allocation -- set the
-	 * bound very low, but rely on implementation elsewhere to actually
-	 * prevent allocation and reclaim current queues.
+	 * Zero specifies no further fragment queue allocation.
 	 */
-	if (V_maxnipq == 0)
+	if (V_maxnipq == 0) {
 		uma_zone_set_max(V_ipq_zone, 1);
+		ip_drain_vnet();
+	}
 }
 
 static void