1 files changed, 10 insertions, 0 deletions

diff --git a/net/core/dst.c b/net/core/dst.c
index 694cd2a3f6d2..fe03266130b6 100644
--- a/net/core/dst.c
+++ b/net/core/dst.c
@@ -259,6 +259,16 @@ again:
         return NULL;
 }
 
+void dst_release(struct dst_entry *dst)
+{
+        if (dst) {
+                WARN_ON(atomic_read(&dst->__refcnt) < 1);
+                smp_mb__before_atomic_dec();
+                atomic_dec(&dst->__refcnt);
+        }
+}
+EXPORT_SYMBOL(dst_release);
+
 /* Dirty hack. We did it in 2.2 (in __dst_free),
  * we have _very_ good reasons not to repeat
  * this mistake in 2.3, but we have no choice