net/sched: Add select_queue() class_ops for mqprio
When replacing a child qdisc from mqprio, tc_modify_qdisc() must fetch the netdev_queue pointer that the current child qdisc is associated with before creating the new qdisc. Currently, when using mqprio as root qdisc, the kernel will end up getting the queue #0 pointer from the mqprio (root qdisc), which leaves any new child qdisc with a possibly wrong netdev_queue pointer. Implementing the Qdisc_class_ops select_queue() on mqprio fixes this issue and avoid an inconsistent state when child qdiscs are replaced. Signed-off-by:Jesus Sanchez-Palencia <jesus.sanchez-palencia@intel.com> Tested-by:
Henrik Austad <henrik@austad.us> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com>
parent
ce8a75f6
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