net/sched: sch_hfsc: warn about class in use while deleting

Add extack to warn that delete was rejected because
the class is still in use

Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Pedro Tammela <pctammela@mojatatu.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Pedro Tammela 2023-07-28 12:35:35 -03:00 committed by Paolo Abeni
parent daf8d9181b
commit 8e4553ef3e

View file

@ -1094,8 +1094,10 @@ hfsc_delete_class(struct Qdisc *sch, unsigned long arg,
struct hfsc_class *cl = (struct hfsc_class *)arg;
if (cl->level > 0 || qdisc_class_in_use(&cl->cl_common) ||
cl == &q->root)
cl == &q->root) {
NL_SET_ERR_MSG(extack, "HFSC class in use");
return -EBUSY;
}
sch_tree_lock(sch);