Page MenuHomeFreeBSD
Files F81969263

D6198.id15883.diff
No OneTemporary
Actions

D6198.id15883.diff
View Options

Index: sys/netinet/tcp_hostcache.c
===================================================================
--- sys/netinet/tcp_hostcache.c
+++ sys/netinet/tcp_hostcache.c
@@ -124,6 +124,12 @@
static SYSCTL_NODE(_net_inet_tcp, OID_AUTO, hostcache, CTLFLAG_RW, 0,
"TCP Host cache");
+VNET_DEFINE(int, tcp_use_hostcache) = 1;
+#define V_tcp_use_hostcache VNET(tcp_use_hostcache)
+SYSCTL_INT(_net_inet_tcp_hostcache, OID_AUTO, enable, CTLFLAG_VNET | CTLFLAG_RW,
+ &VNET_NAME(tcp_use_hostcache), 0,
+ "Enable the TCP hostcache");
+
SYSCTL_UINT(_net_inet_tcp_hostcache, OID_AUTO, cachelimit, CTLFLAG_VNET | CTLFLAG_RDTUN,
&VNET_NAME(tcp_hostcache.cache_limit), 0,
"Overall entry limit for hostcache");
@@ -272,6 +278,9 @@
static struct hc_metrics *
tcp_hc_lookup(struct in_conninfo *inc)
{
+ if (!V_tcp_use_hostcache)
+ return NULL;
+
int hash;
struct hc_head *hc_head;
struct hc_metrics *hc_entry;
@@ -328,6 +337,9 @@
static struct hc_metrics *
tcp_hc_insert(struct in_conninfo *inc)
{
+ if (!V_tcp_use_hostcache)
+ return NULL;
+
int hash;
struct hc_head *hc_head;
struct hc_metrics *hc_entry;
@@ -419,6 +431,9 @@
void
tcp_hc_get(struct in_conninfo *inc, struct hc_metrics_lite *hc_metrics_lite)
{
+ if (!V_tcp_use_hostcache)
+ return;
+
struct hc_metrics *hc_entry;
/*
@@ -458,6 +473,9 @@
u_long
tcp_hc_getmtu(struct in_conninfo *inc)
{
+ if (!V_tcp_use_hostcache)
+ return 0;
+
struct hc_metrics *hc_entry;
u_long mtu;
@@ -480,6 +498,9 @@
void
tcp_hc_updatemtu(struct in_conninfo *inc, u_long mtu)
{
+ if (!V_tcp_use_hostcache)
+ return;
+
struct hc_metrics *hc_entry;
/*
@@ -519,6 +540,9 @@
void
tcp_hc_update(struct in_conninfo *inc, struct hc_metrics_lite *hcml)
{
+ if (!V_tcp_use_hostcache)
+ return;
+
struct hc_metrics *hc_entry;
hc_entry = tcp_hc_lookup(inc);

File Metadata

Mime Type
text/plain
Expires
Sun, Dec 15, 4:30 AM (9 h, 31 m)
Storage Engine
blob
Storage Format
Raw Data
Storage Handle
9091386
Default Alt Text
D6198.id15883.diff (1 KB)

Event Timeline