svn commit: r281295 - head/sys/netinet
Gleb Smirnoff
glebius at FreeBSD.org
Thu Apr 9 08:56:24 UTC 2015
Author: glebius
Date: Thu Apr 9 08:56:23 2015
New Revision: 281295
URL: https://svnweb.freebsd.org/changeset/base/281295
Log:
If V_maxnipq is set to zero, drain the queue here and now, instead of
relying on timeouts.
Sponsored by: Nginx, Inc.
Modified:
head/sys/netinet/ip_input.c
Modified: head/sys/netinet/ip_input.c
==============================================================================
--- head/sys/netinet/ip_input.c Thu Apr 9 08:52:02 2015 (r281294)
+++ head/sys/netinet/ip_input.c Thu Apr 9 08:56:23 2015 (r281295)
@@ -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
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