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| author | Jarek Poplawski <jarkao2@gmail.com> | 2008-08-29 14:21:52 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-08-29 14:27:52 -0700 |
| commit | 102396ae65108b026e4e1868e30fa013f45a169e (patch) | |
| tree | 1164f9020a3fa47460a2ab72e07c3308be2290ee /net/sched/sch_htb.c | |
| parent | 3cc76caa98b092a8fb3e7b4303c70f847db0651f (diff) | |
| download | lwn-102396ae65108b026e4e1868e30fa013f45a169e.tar.gz lwn-102396ae65108b026e4e1868e30fa013f45a169e.zip | |
pkt_sched: Fix locking of qdisc_root with qdisc_root_sleeping_lock()
Use qdisc_root_sleeping_lock() instead of qdisc_root_lock() where
appropriate. The only difference is while dev is deactivated, when
currently we can use a sleeping qdisc with the lock of noop_qdisc.
This shouldn't be dangerous since after deactivation root lock could
be used only by gen_estimator code, but looks wrong anyway.
Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/sch_htb.c')
| -rw-r--r-- | net/sched/sch_htb.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c index 97d4761cc31e..d14f02056ae6 100644 --- a/net/sched/sch_htb.c +++ b/net/sched/sch_htb.c @@ -1043,7 +1043,7 @@ static int htb_init(struct Qdisc *sch, struct nlattr *opt) static int htb_dump(struct Qdisc *sch, struct sk_buff *skb) { - spinlock_t *root_lock = qdisc_root_lock(sch); + spinlock_t *root_lock = qdisc_root_sleeping_lock(sch); struct htb_sched *q = qdisc_priv(sch); struct nlattr *nest; struct tc_htb_glob gopt; @@ -1075,7 +1075,7 @@ static int htb_dump_class(struct Qdisc *sch, unsigned long arg, struct sk_buff *skb, struct tcmsg *tcm) { struct htb_class *cl = (struct htb_class *)arg; - spinlock_t *root_lock = qdisc_root_lock(sch); + spinlock_t *root_lock = qdisc_root_sleeping_lock(sch); struct nlattr *nest; struct tc_htb_opt opt; |