bybrooklyn/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-04-18 06:44:00 -04:00
Code Issues Packages Projects Releases Wiki Activity

ipvs: add conn_lfactor and svc_lfactor sysctl vars

Browse Source 
Allow the default load factor for the connection and service tables
to be configured.

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Florian Westphal <fw@strlen.de>
This commit is contained in:
Julian Anastasov
2026-04-04 18:34:39 +03:00
committed by Florian Westphal
parent 9a9ccef907
commit 8d7de5477e
2 changed files with 113 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

76
net/netfilter/ipvs/ip_vs_ctl.c
View File

@@ -2445,6 +2445,60 @@ static int ipvs_proc_run_estimation(const struct ctl_table *table, int write,
return ret;
}
static int ipvs_proc_conn_lfactor(const struct ctl_table *table, int write,
void *buffer, size_t *lenp, loff_t *ppos)
{
struct netns_ipvs *ipvs = table->extra2;
int *valp = table->data;
int val = *valp;
int ret;
struct ctl_table tmp_table = {
.data = &val,
.maxlen = sizeof(int),
};
ret = proc_dointvec(&tmp_table, write, buffer, lenp, ppos);
if (write && ret >= 0) {
if (val < -8 || val > 8) {
ret = -EINVAL;
} else {
*valp = val;
if (rcu_access_pointer(ipvs->conn_tab))
mod_delayed_work(system_unbound_wq,
&ipvs->conn_resize_work, 0);
}
}
return ret;
}
static int ipvs_proc_svc_lfactor(const struct ctl_table *table, int write,
void *buffer, size_t *lenp, loff_t *ppos)
{
struct netns_ipvs *ipvs = table->extra2;
int *valp = table->data;
int val = *valp;
int ret;
struct ctl_table tmp_table = {
.data = &val,
.maxlen = sizeof(int),
};
ret = proc_dointvec(&tmp_table, write, buffer, lenp, ppos);
if (write && ret >= 0) {
if (val < -8 || val > 8) {
ret = -EINVAL;
} else {
*valp = val;
if (rcu_access_pointer(ipvs->svc_table))
mod_delayed_work(system_unbound_wq,
&ipvs->svc_resize_work, 0);
}
}
return ret;
}
/*
* IPVS sysctl table (under the /proc/sys/net/ipv4/vs/)
* Do not change order or insert new entries without
@@ -2633,6 +2687,18 @@ static struct ctl_table vs_vars[] = {
.mode = 0644,
.proc_handler = ipvs_proc_est_nice,
},
{
.procname = "conn_lfactor",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = ipvs_proc_conn_lfactor,
},
{
.procname = "svc_lfactor",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = ipvs_proc_svc_lfactor,
},
#ifdef CONFIG_IP_VS_DEBUG
{
.procname = "debug_level",
@@ -4853,6 +4919,16 @@ static int __net_init ip_vs_control_net_init_sysctl(struct netns_ipvs *ipvs)
tbl[idx].extra2 = ipvs;
tbl[idx++].data = &ipvs->sysctl_est_nice;
if (unpriv)
tbl[idx].mode = 0444;
tbl[idx].extra2 = ipvs;
tbl[idx++].data = &ipvs->sysctl_conn_lfactor;
if (unpriv)
tbl[idx].mode = 0444;
tbl[idx].extra2 = ipvs;
tbl[idx++].data = &ipvs->sysctl_svc_lfactor;
#ifdef CONFIG_IP_VS_DEBUG
/* Global sysctls must be ro in non-init netns */
if (!net_eq(net, &init_net))