[IPV4] SNMP: Move some statistic bits to net/ipv4/proc.c.

This also fixes memory leak in error path.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 25 insertions, 0 deletions

diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c
index ae68a691e8cd..97952d54ae84 100644
--- a/net/ipv4/proc.c
+++ b/net/ipv4/proc.c
@@ -391,3 +391,28 @@ out_netstat:
         goto out;
 }
 
+int snmp_mib_init(void *ptr[2], size_t mibsize, size_t mibalign)
+{
+        BUG_ON(ptr == NULL);
+        ptr[0] = __alloc_percpu(mibsize);
+        if (!ptr[0])
+                goto err0;
+        ptr[1] = __alloc_percpu(mibsize);
+        if (!ptr[1])
+                goto err1;
+        return 0;
+err1:
+        free_percpu(ptr[0]);
+        ptr[0] = NULL;
+err0:
+        return -ENOMEM;
+}
+
+void snmp_mib_free(void *ptr[2])
+{
+        BUG_ON(ptr == NULL);
+        free_percpu(ptr[0]);
+        free_percpu(ptr[1]);
+        ptr[0] = ptr[1] = NULL;
+}
+