[PATCH net-next 19/19] net/sched: add net device refcount tracker to struct Qdisc
flat view
STALE1603d
SUPERSEDED
From: Eric Dumazet <hidden>
Date: 2021-12-02 03:23:40
Subsystem:
networking [general], tc subsystem, the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Jamal Hadi Salim, Jiri Pirko, Linus Torvalds
Revision v1 of 3 in this series.
Revisions (3)
- v1 current
- v2 [diff vs current]
- v3 [diff vs current]
From: Eric Dumazet <redacted> Signed-off-by: Eric Dumazet <redacted> --- include/net/sch_generic.h | 2 +- net/sched/sch_generic.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index 22179b2fda72a0a1c2fddc07eeda40716a443a46..dbf202bb1a0edad582dbaefe72aac1632e219fbd 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h@@ -125,7 +125,7 @@ struct Qdisc { spinlock_t seqlock; struct rcu_head rcu; - + netdevice_tracker dev_tracker; /* private data */ long privdata[] ____cacheline_aligned; };
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index d33804d41c5c5a9047c808fd37ba65ae8875fc79..8c8fbf2e385679e46a1b7af47eeac059fb8468cc 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c@@ -973,7 +973,7 @@ struct Qdisc *qdisc_alloc(struct netdev_queue *dev_queue, sch->enqueue = ops->enqueue; sch->dequeue = ops->dequeue; sch->dev_queue = dev_queue; - dev_hold(dev); + dev_hold_track(dev, &sch->dev_tracker, GFP_KERNEL); refcount_set(&sch->refcnt, 1); return sch;
@@ -1073,7 +1073,7 @@ static void qdisc_destroy(struct Qdisc *qdisc) ops->destroy(qdisc); module_put(ops->owner); - dev_put(qdisc_dev(qdisc)); + dev_put_track(qdisc_dev(qdisc), &qdisc->dev_tracker); trace_qdisc_destroy(qdisc);
--
2.34.0.rc2.393.gf8c9666880-goog