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Diffstat (limited to 'net/ipv4/sysctl_net_ipv4.c')
-rw-r--r--net/ipv4/sysctl_net_ipv4.c20
1 files changed, 19 insertions, 1 deletions
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index 4602af6d5358..8dcc2b185fcc 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -25,6 +25,7 @@
#include <net/inet_frag.h>
#include <net/ping.h>
#include <net/protocol.h>
+#include <net/netevent.h>
static int zero;
static int one = 1;
@@ -385,6 +386,23 @@ static int proc_tcp_available_ulp(struct ctl_table *ctl,
return ret;
}
+#ifdef CONFIG_IP_ROUTE_MULTIPATH
+static int proc_fib_multipath_hash_policy(struct ctl_table *table, int write,
+ void __user *buffer, size_t *lenp,
+ loff_t *ppos)
+{
+ struct net *net = container_of(table->data, struct net,
+ ipv4.sysctl_fib_multipath_hash_policy);
+ int ret;
+
+ ret = proc_dointvec_minmax(table, write, buffer, lenp, ppos);
+ if (write && ret == 0)
+ call_netevent_notifiers(NETEVENT_MULTIPATH_HASH_UPDATE, net);
+
+ return ret;
+}
+#endif
+
static struct ctl_table ipv4_table[] = {
{
.procname = "tcp_max_orphans",
@@ -907,7 +925,7 @@ static struct ctl_table ipv4_net_table[] = {
.data = &init_net.ipv4.sysctl_fib_multipath_hash_policy,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = proc_dointvec_minmax,
+ .proc_handler = proc_fib_multipath_hash_policy,
.extra1 = &zero,
.extra2 = &one,
},