On 10/25/18 11:16 PM, Jens Axboe wrote:
Add support for the tag set carrying multiple queue maps, and for the driver to inform blk-mq how many it wishes to support through setting set->nr_maps. This adds an mq_ops helper for drivers that support more than 1 map, mq_ops->flags_to_type(). The function takes request/bio flags and CPU, and returns a queue map index for that. We then use the type information in blk_mq_map_queue() to index the map set. Signed-off-by: Jens Axboe <axboe@xxxxxxxxx> --- block/blk-mq.c | 85 ++++++++++++++++++++++++++++-------------- block/blk-mq.h | 19 ++++++---- include/linux/blk-mq.h | 7 ++++ 3 files changed, 76 insertions(+), 35 deletions(-)
Reviewed-by: Hannes Reinecke <hare@xxxxxxxx> Cheers, Hannes
