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Diffstat (limited to 'net/decnet/dn_route.c')
-rw-r--r--net/decnet/dn_route.c34
1 files changed, 17 insertions, 17 deletions
diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index 6f95612b4d32..5d17d843ac86 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -183,11 +183,6 @@ static __inline__ unsigned int dn_hash(__le16 src, __le16 dst)
return dn_rt_hash_mask & (unsigned int)tmp;
}
-static inline void dnrt_free(struct dn_route *rt)
-{
- call_rcu_bh(&rt->dst.rcu_head, dst_rcu_free);
-}
-
static void dn_dst_check_expire(unsigned long dummy)
{
int i;
@@ -202,14 +197,15 @@ static void dn_dst_check_expire(unsigned long dummy)
spin_lock(&dn_rt_hash_table[i].lock);
while ((rt = rcu_dereference_protected(*rtp,
lockdep_is_held(&dn_rt_hash_table[i].lock))) != NULL) {
- if (atomic_read(&rt->dst.__refcnt) ||
- (now - rt->dst.lastuse) < expire) {
+ if (atomic_read(&rt->dst.__refcnt) > 1 ||
+ (now - rt->dst.lastuse) < expire) {
rtp = &rt->dst.dn_next;
continue;
}
*rtp = rt->dst.dn_next;
rt->dst.dn_next = NULL;
- dnrt_free(rt);
+ dst_dev_put(&rt->dst);
+ dst_release(&rt->dst);
}
spin_unlock(&dn_rt_hash_table[i].lock);
@@ -235,14 +231,15 @@ static int dn_dst_gc(struct dst_ops *ops)
while ((rt = rcu_dereference_protected(*rtp,
lockdep_is_held(&dn_rt_hash_table[i].lock))) != NULL) {
- if (atomic_read(&rt->dst.__refcnt) ||
- (now - rt->dst.lastuse) < expire) {
+ if (atomic_read(&rt->dst.__refcnt) > 1 ||
+ (now - rt->dst.lastuse) < expire) {
rtp = &rt->dst.dn_next;
continue;
}
*rtp = rt->dst.dn_next;
rt->dst.dn_next = NULL;
- dnrt_free(rt);
+ dst_dev_put(&rt->dst);
+ dst_release(&rt->dst);
break;
}
spin_unlock_bh(&dn_rt_hash_table[i].lock);
@@ -344,7 +341,7 @@ static int dn_insert_route(struct dn_route *rt, unsigned int hash, struct dn_rou
dst_use(&rth->dst, now);
spin_unlock_bh(&dn_rt_hash_table[hash].lock);
- dst_free(&rt->dst);
+ dst_release_immediate(&rt->dst);
*rp = rth;
return 0;
}
@@ -374,7 +371,8 @@ static void dn_run_flush(unsigned long dummy)
for(; rt; rt = next) {
next = rcu_dereference_raw(rt->dst.dn_next);
RCU_INIT_POINTER(rt->dst.dn_next, NULL);
- dnrt_free(rt);
+ dst_dev_put(&rt->dst);
+ dst_release(&rt->dst);
}
nothing_to_declare:
@@ -1181,7 +1179,7 @@ make_route:
if (dev_out->flags & IFF_LOOPBACK)
flags |= RTCF_LOCAL;
- rt = dst_alloc(&dn_dst_ops, dev_out, 0, DST_OBSOLETE_NONE, DST_HOST);
+ rt = dst_alloc(&dn_dst_ops, dev_out, 1, DST_OBSOLETE_NONE, DST_HOST);
if (rt == NULL)
goto e_nobufs;
@@ -1215,6 +1213,7 @@ make_route:
goto e_neighbour;
hash = dn_hash(rt->fld.saddr, rt->fld.daddr);
+ /* dn_insert_route() increments dst->__refcnt */
dn_insert_route(rt, hash, (struct dn_route **)pprt);
done:
@@ -1237,7 +1236,7 @@ e_nobufs:
err = -ENOBUFS;
goto done;
e_neighbour:
- dst_free(&rt->dst);
+ dst_release_immediate(&rt->dst);
goto e_nobufs;
}
@@ -1445,7 +1444,7 @@ static int dn_route_input_slow(struct sk_buff *skb)
}
make_route:
- rt = dst_alloc(&dn_dst_ops, out_dev, 0, DST_OBSOLETE_NONE, DST_HOST);
+ rt = dst_alloc(&dn_dst_ops, out_dev, 1, DST_OBSOLETE_NONE, DST_HOST);
if (rt == NULL)
goto e_nobufs;
@@ -1491,6 +1490,7 @@ make_route:
goto e_neighbour;
hash = dn_hash(rt->fld.saddr, rt->fld.daddr);
+ /* dn_insert_route() increments dst->__refcnt */
dn_insert_route(rt, hash, &rt);
skb_dst_set(skb, &rt->dst);
@@ -1514,7 +1514,7 @@ e_nobufs:
goto done;
e_neighbour:
- dst_free(&rt->dst);
+ dst_release_immediate(&rt->dst);
goto done;
}
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