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-rw-r--r--net/ipv4/route.c16
1 files changed, 4 insertions, 12 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index fc1a81c..d6eabcf 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1199,11 +1199,6 @@ restart:
fnhe->fnhe_stamp = jiffies;
}
-static inline void rt_free(struct rtable *rt)
-{
- call_rcu_bh(&rt->dst.rcu_head, dst_rcu_free);
-}
-
static void rt_cache_route(struct fib_nh *nh, struct rtable *rt)
{
struct rtable *orig, *prev, **p = &nh->nh_rth_output;
@@ -1213,17 +1208,14 @@ static void rt_cache_route(struct fib_nh *nh, struct rtable *rt)
orig = *p;
+ rt->dst.flags |= DST_RCU_FREE;
+ dst_hold(&rt->dst);
prev = cmpxchg(p, orig, rt);
if (prev == orig) {
if (orig)
- rt_free(orig);
+ dst_release(&orig->dst);
} else {
- /* Routes we intend to cache in the FIB nexthop have
- * the DST_NOCACHE bit clear. However, if we are
- * unsuccessful at storing this route into the cache
- * we really need to set it.
- */
- rt->dst.flags |= DST_NOCACHE;
+ dst_release(&rt->dst);
}
}
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