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