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pkt_sched: Fix sch_tree_lock()

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Use new qdisc_root_sleeping_lock() instead of qdisc_root_lock() as
sch_tree_lock() because this lock could be used while dev is
deactivated, but we never need to use this with noop_qdisc as a root.

Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jarek Poplawski 2008-08-27 02:27:10 -07:00 committed by David S. Miller
parent f6f9b93f16
commit fe439dd09d
1 changed files with 2 additions and 2 deletions
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4
include/net/sch_generic.h
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@ -232,12 +232,12 @@ static inline struct net_device *qdisc_dev(struct Qdisc *qdisc)
static inline void sch_tree_lock(struct Qdisc *q)
{
spin_lock_bh(qdisc_root_lock(q));
spin_lock_bh(qdisc_root_sleeping_lock(q));
}
static inline void sch_tree_unlock(struct Qdisc *q)
{
spin_unlock_bh(qdisc_root_lock(q));
spin_unlock_bh(qdisc_root_sleeping_lock(q));
}
#define tcf_tree_lock(tp) sch_tree_lock((tp)->q)