diff --git a/[refs] b/[refs]
index dc9f742c2e9f..dfcd9330844e 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: c223695634fb360ed65e5a811161853a05e46962
+refs/heads/master: 90c5029e471636f21221bf66b9a46ada2ab79a22
diff --git a/trunk/mm/mempolicy.c b/trunk/mm/mempolicy.c
index cb41c31e7c87..1694845526be 100644
--- a/trunk/mm/mempolicy.c
+++ b/trunk/mm/mempolicy.c
@@ -1138,11 +1138,11 @@ void mpol_free_shared_policy(struct shared_policy *p)
 	while (next) {
 		n = rb_entry(next, struct sp_node, nd);
 		next = rb_next(&n->nd);
+		rb_erase(&n->nd, &p->root);
 		mpol_free(n->policy);
 		kmem_cache_free(sn_cache, n);
 	}
 	spin_unlock(&p->lock);
-	p->root = RB_ROOT;
 }
 
 /* assumes fs == KERNEL_DS */