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-rw-r--r--include/net/dst_metadata.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/net/dst_metadata.h b/include/net/dst_metadata.h
index 14efa0ded75d..b997e0c1e362 100644
--- a/include/net/dst_metadata.h
+++ b/include/net/dst_metadata.h
@@ -123,6 +123,19 @@ static inline struct metadata_dst *tun_dst_unclone(struct sk_buff *skb)
memcpy(&new_md->u.tun_info, &md_dst->u.tun_info,
sizeof(struct ip_tunnel_info) + md_size);
+#ifdef CONFIG_DST_CACHE
+ /* Unclone the dst cache if there is one */
+ if (new_md->u.tun_info.dst_cache.cache) {
+ int ret;
+
+ ret = dst_cache_init(&new_md->u.tun_info.dst_cache, GFP_ATOMIC);
+ if (ret) {
+ metadata_dst_free(new_md);
+ return ERR_PTR(ret);
+ }
+ }
+#endif
+
skb_dst_drop(skb);
dst_hold(&new_md->dst);
skb_dst_set(skb, &new_md->dst);