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| author | Jiri Pirko <jiri@mellanox.com> | 2017-12-15 12:40:13 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-12-15 15:43:12 -0500 |
| commit | b59e6979a86384e68b0ab6ffeab11f0034fba82d (patch) | |
| tree | 80092ec432ee3fa8cf5689cd9e01e5bd6cee38cc /net/sched/sch_ingress.c | |
| parent | 343723dd51ef1025a860e54df9472b5ba21ee3d9 (diff) | |
| download | lwn-b59e6979a86384e68b0ab6ffeab11f0034fba82d.tar.gz lwn-b59e6979a86384e68b0ab6ffeab11f0034fba82d.zip | |
net: sched: fix static key imbalance in case of ingress/clsact_init error
Move static key increments to the beginning of the init function
so they pair 1:1 with decrements in ingress/clsact_destroy,
which is called in case ingress/clsact_init fails.
Fixes: 6529eaba33f0 ("net: sched: introduce tcf block infractructure")
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/sch_ingress.c')
| -rw-r--r-- | net/sched/sch_ingress.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/net/sched/sch_ingress.c b/net/sched/sch_ingress.c index 5e1cd2e5df87..fc1286f499c1 100644 --- a/net/sched/sch_ingress.c +++ b/net/sched/sch_ingress.c @@ -68,6 +68,8 @@ static int ingress_init(struct Qdisc *sch, struct nlattr *opt) struct net_device *dev = qdisc_dev(sch); int err; + net_inc_ingress_queue(); + mini_qdisc_pair_init(&q->miniqp, sch, &dev->miniq_ingress); q->block_info.binder_type = TCF_BLOCK_BINDER_TYPE_CLSACT_INGRESS; @@ -78,7 +80,6 @@ static int ingress_init(struct Qdisc *sch, struct nlattr *opt) if (err) return err; - net_inc_ingress_queue(); sch->flags |= TCQ_F_CPUSTATS; return 0; @@ -172,6 +173,9 @@ static int clsact_init(struct Qdisc *sch, struct nlattr *opt) struct net_device *dev = qdisc_dev(sch); int err; + net_inc_ingress_queue(); + net_inc_egress_queue(); + mini_qdisc_pair_init(&q->miniqp_ingress, sch, &dev->miniq_ingress); q->ingress_block_info.binder_type = TCF_BLOCK_BINDER_TYPE_CLSACT_INGRESS; @@ -192,9 +196,6 @@ static int clsact_init(struct Qdisc *sch, struct nlattr *opt) if (err) return err; - net_inc_ingress_queue(); - net_inc_egress_queue(); - sch->flags |= TCQ_F_CPUSTATS; return 0; |