pkt_sched: Kill qdisc_lock_tree usage in cls_route.c

It just wants the qdisc tree to be synchronized, so grabbing
qdisc_root_lock() is sufficient.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 7 insertions, 5 deletions

diff --git a/net/sched/cls_route.c b/net/sched/cls_route.c
index 5a16ca28aa3d..481260a4f10f 100644
--- a/net/sched/cls_route.c
+++ b/net/sched/cls_route.c
@@ -73,11 +73,13 @@ static __inline__ int route4_fastmap_hash(u32 id, int iif)
 }
 
 static inline
-void route4_reset_fastmap(struct net_device *dev, struct route4_head *head, u32 id)
+void route4_reset_fastmap(struct Qdisc *q, struct route4_head *head, u32 id)
 {
-        qdisc_lock_tree(dev);
+        spinlock_t *root_lock = qdisc_root_lock(q);
+
+        spin_lock_bh(root_lock);
         memset(head->fastmap, 0, sizeof(head->fastmap));
-        qdisc_unlock_tree(dev);
+        spin_unlock_bh(root_lock);
 }
 
 static inline void
@@ -302,7 +304,7 @@ static int route4_delete(struct tcf_proto *tp, unsigned long arg)
                         *fp = f->next;
                         tcf_tree_unlock(tp);
 
-                        route4_reset_fastmap(qdisc_dev(tp->q), head, f->id);
+                        route4_reset_fastmap(tp->q, head, f->id);
                         route4_delete_filter(tp, f);
 
                         /* Strip tree */
@@ -500,7 +502,7 @@ reinsert:
         }
         tcf_tree_unlock(tp);
 
-        route4_reset_fastmap(qdisc_dev(tp->q), head, f->id);
+        route4_reset_fastmap(tp->q, head, f->id);
         *arg = (unsigned long)f;
         return 0;