On Tue, Dec 12, 2017 at 03:12:43PM +0100, Christoph Hellwig wrote: > On Tue, Dec 12, 2017 at 07:02:30PM +0800, Ming Lei wrote: > > blk_mq_pci_map_queues() may not map one CPU into any hw queue, but its > > previous map isn't cleared yet, and may point to one stale hw queue > > index. > > > > This patch fixes the following issue by clearing the mapping table before > > setting it up in blk_mq_pci_map_queues(). > > This needs to be done in the caller intead of the transport specific > queue map helpers. OK, there is such issue on other .map_queues() too, such as virtio, ... Thanks, Ming