[NET]: Make helper to get dst entry and "use" it

[deliverable/linux.git] / net / decnet / dn_route.c

diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index b7ebf9947ebdce1cd95c7c1286ef0dcb3e8bbb86..66663e5d7acdc8cb20349b62c86690fe82a1b770 100644 (file)
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -293,9 +293,7 @@ static int dn_insert_route(struct dn_route *rt, unsigned hash, struct dn_route *
                                           dn_rt_hash_table[hash].chain);
                        rcu_assign_pointer(dn_rt_hash_table[hash].chain, rth);
 
-                       rth->u.dst.__use++;
-                       dst_hold(&rth->u.dst);
-                       rth->u.dst.lastuse = now;
+                       dst_use(&rth->u.dst, now);
                        spin_unlock_bh(&dn_rt_hash_table[hash].lock);
 
                        dnrt_drop(rt);
@@ -308,9 +306,7 @@ static int dn_insert_route(struct dn_route *rt, unsigned hash, struct dn_route *
        rcu_assign_pointer(rt->u.dst.dn_next, dn_rt_hash_table[hash].chain);
        rcu_assign_pointer(dn_rt_hash_table[hash].chain, rt);
 
-       dst_hold(&rt->u.dst);
-       rt->u.dst.__use++;
-       rt->u.dst.lastuse = now;
+       dst_use(&rt->u.dst, now);
        spin_unlock_bh(&dn_rt_hash_table[hash].lock);
        *rp = rt;
        return 0;
@@ -1182,9 +1178,7 @@ static int __dn_route_output_key(struct dst_entry **pprt, const struct flowi *fl
                            (flp->mark == rt->fl.mark) &&
                            (rt->fl.iif == 0) &&
                            (rt->fl.oif == flp->oif)) {
-                               rt->u.dst.lastuse = jiffies;
-                               dst_hold(&rt->u.dst);
-                               rt->u.dst.__use++;
+                               dst_use(&rt->u.dst, jiffies);
                                rcu_read_unlock_bh();
                                *pprt = &rt->u.dst;
                                return 0;
@@ -1456,9 +1450,7 @@ int dn_route_input(struct sk_buff *skb)
                    (rt->fl.oif == 0) &&
                    (rt->fl.mark == skb->mark) &&
                    (rt->fl.iif == cb->iif)) {
-                       rt->u.dst.lastuse = jiffies;
-                       dst_hold(&rt->u.dst);
-                       rt->u.dst.__use++;
+                       dst_use(&rt->u.dst, jiffies);
                        rcu_read_unlock();
                        skb->dst = (struct dst_entry *)rt;
                        return 0;
@@ -1739,23 +1731,8 @@ static const struct seq_operations dn_rt_cache_seq_ops = {
 
 static int dn_rt_cache_seq_open(struct inode *inode, struct file *file)
 {
-       struct seq_file *seq;
-       int rc = -ENOMEM;
-       struct dn_rt_cache_iter_state *s;
-
-       s = kzalloc(sizeof(*s), GFP_KERNEL);
-       if (!s)
-               goto out;
-       rc = seq_open(file, &dn_rt_cache_seq_ops);
-       if (rc)
-               goto out_kfree;
-       seq             = file->private_data;
-       seq->private    = s;
-out:
-       return rc;
-out_kfree:
-       kfree(s);
-       goto out;
+       return seq_open_private(file, &dn_rt_cache_seq_ops,
+                       sizeof(struct dn_rt_cache_iter_state));
 }
 
 static const struct file_operations dn_rt_cache_seq_fops = {