commit b691f768a1427094f6788a2f4f268ccfe7e9d15b
author Florin Coras <fcoras@cisco.com> Fri Feb 22 09:07:20 2019 -0800
committer Damjan Marion <dmarion@me.com> Fri Feb 22 20:45:19 2019 +0000
tree bd53ddfa4fa8bf79407552bf420bb46ed582f65c
parent 18be9b90a145f5659a46edf7166a62f3c1a95c69

tcp: keep snd sack block free list

Instead of constantly reallocating the new sack block list, keep the old
one as a reusable free list.

Change-Id: Iad79a72204f97b96352c1c6eea66c2839a35cfe6
Signed-off-by: Florin Coras <fcoras@cisco.com>

src/vnet/tcp/tcp.c

diff --git a/src/vnet/tcp/tcp.c b/src/vnet/tcp/tcp.c
index 9f35b82..8969f7b 100644
--- a/src/vnet/tcp/tcp.c
+++ b/src/vnet/tcp/tcp.c
@@ -223,6 +223,9 @@
       if (!tc->c_is_ip4 && ip6_address_is_link_local_unicast (&tc->c_rmt_ip6))
 	tcp_add_del_adjacency (tc, 0);
 
+      vec_free (tc->snd_sacks);
+      vec_free (tc->snd_sacks_fl);
+
       /* Poison the entry */
       if (CLIB_DEBUG > 0)
 	clib_memset (tc, 0xFA, sizeof (*tc));