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>

diff --git a/net/sched/cls_route.c b/net/sched/cls_route.c
index 5a16ca28aa3d0ea5d7c27a645201183a9855f5b0..481260a4f10f333f6eb9c52a73fb52da02f092eb 100644 (file)
--- 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;