ipv4: NET_IPV4_ROUTE_GC_INTERVAL removal

removing obsoleted sysctl,
ip_rt_gc_interval variable no longer used since 2.6.38

Signed-off-by: Vasily Averin <vvs@sw.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 2 insertions, 10 deletions

diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index 11684d9e6bd2..9a1ec10fd504 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -435,7 +435,7 @@ enum {
         NET_IPV4_ROUTE_MAX_SIZE=5,
         NET_IPV4_ROUTE_GC_MIN_INTERVAL=6,
         NET_IPV4_ROUTE_GC_TIMEOUT=7,
-        NET_IPV4_ROUTE_GC_INTERVAL=8,
+        NET_IPV4_ROUTE_GC_INTERVAL=8, /* obsolete since 2.6.38 */
         NET_IPV4_ROUTE_REDIRECT_LOAD=9,
         NET_IPV4_ROUTE_REDIRECT_NUMBER=10,
         NET_IPV4_ROUTE_REDIRECT_SILENCE=11,
diff --git a/kernel/sysctl_binary.c b/kernel/sysctl_binary.c
index e8bffbe2ba4b..6318b511afa1 100644
--- a/kernel/sysctl_binary.c
+++ b/kernel/sysctl_binary.c
@@ -214,7 +214,7 @@ static const struct bin_table bin_net_ipv4_route_table[] = {
         { CTL_INT,      NET_IPV4_ROUTE_GC_MIN_INTERVAL,         "gc_min_interval" },
         { CTL_INT,      NET_IPV4_ROUTE_GC_MIN_INTERVAL_MS,      "gc_min_interval_ms" },
         { CTL_INT,      NET_IPV4_ROUTE_GC_TIMEOUT,              "gc_timeout" },
-        { CTL_INT,      NET_IPV4_ROUTE_GC_INTERVAL,             "gc_interval" },
+        /* NET_IPV4_ROUTE_GC_INTERVAL "gc_interval" no longer used */
         { CTL_INT,      NET_IPV4_ROUTE_REDIRECT_LOAD,           "redirect_load" },
         { CTL_INT,      NET_IPV4_ROUTE_REDIRECT_NUMBER,         "redirect_number" },
         { CTL_INT,      NET_IPV4_ROUTE_REDIRECT_SILENCE,        "redirect_silence" },
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 2c21d3be891b..26c77e14395f 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -120,7 +120,6 @@
 
 static int ip_rt_max_size;
 static int ip_rt_gc_timeout __read_mostly       = RT_GC_TIMEOUT;
-static int ip_rt_gc_interval __read_mostly      = 60 * HZ;
 static int ip_rt_gc_min_interval __read_mostly  = HZ / 2;
 static int ip_rt_redirect_number __read_mostly  = 9;
 static int ip_rt_redirect_load __read_mostly    = HZ / 50;
@@ -3121,13 +3120,6 @@ static ctl_table ipv4_route_table[] = {
                 .proc_handler   = proc_dointvec_jiffies,
         },
         {
-                .procname       = "gc_interval",
-                .data           = &ip_rt_gc_interval,
-                .maxlen         = sizeof(int),
-                .mode           = 0644,
-                .proc_handler   = proc_dointvec_jiffies,
-        },
-        {
                 .procname       = "redirect_load",
                 .data           = &ip_rt_redirect_load,
                 .maxlen         = sizeof(int),