Commit 606509f2 authored by Eric Dumazet's avatar Eric Dumazet Committed by Jakub Kicinski
Browse files

net/sched: add net device refcount tracker to struct Qdisc 



Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent c04438f5

include/net/sch_generic.h

+1 −1
Original line number Diff line number Diff line
@@ -125,7 +125,7 @@ struct Qdisc { 
	spinlock_t		seqlock;



	struct rcu_head		rcu;



	netdevice_tracker	dev_tracker;

	/* private data */

	long privdata[] ____cacheline_aligned;

};

net/sched/sch_generic.c

+2 −2
Original line number Diff line number Diff line
@@ -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);