Date: Thu, 9 Apr 2015 08:56:24 +0000 (UTC) From: Gleb Smirnoff <glebius@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r281295 - head/sys/netinet Message-ID: <201504090856.t398uOAk077262@svn.freebsd.org>
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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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