On 06/20/2017 08:15 PM, Bart Van Assche wrote: > From: Bart Van Assche <bart.vanassche@xxxxxxxxxxx> > > A queue must be frozen while the mapped state of a hardware queue > is changed. Additionally, any change of the mapped state is > followed by a call to blk_mq_map_swqueue() (see also > blk_mq_init_allocated_queue() and blk_mq_update_nr_hw_queues()). > Since blk_mq_map_swqueue() does not map any unmapped hardware > queue onto any software queue, no attempt will be made to run > an unmapped hardware queue. Hence issue a warning upon attempts > to run an unmapped hardware queue. > > Signed-off-by: Bart Van Assche <bart.vanassche@xxxxxxxxxxx> > Reviewed-by: Christoph Hellwig <hch@xxxxxx> > Cc: Hannes Reinecke <hare@xxxxxxxx> > Cc: Omar Sandoval <osandov@xxxxxx> > Cc: Ming Lei <ming.lei@xxxxxxxxxx> > --- > block/blk-mq.c | 8 +++++--- > 1 file changed, 5 insertions(+), 3 deletions(-) > Reviewed-by: Hannes Reinecke <hare@xxxxxxxx> Cheers, Hannes -- Dr. Hannes Reinecke Teamlead Storage & Networking hare@xxxxxxx +49 911 74053 688 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton HRB 21284 (AG Nürnberg)
