diff options
| -rw-r--r-- | block/blk-mq.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c index d92088dec6c3..d4bd9b961726 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -3023,6 +3023,14 @@ static int blk_mq_alloc_rq_maps(struct blk_mq_tag_set *set) static int blk_mq_update_queue_map(struct blk_mq_tag_set *set) { + /* + * blk_mq_map_queues() and multiple .map_queues() implementations + * expect that set->map[HCTX_TYPE_DEFAULT].nr_queues is set to the + * number of hardware queues. + */ + if (set->nr_maps == 1) + set->map[HCTX_TYPE_DEFAULT].nr_queues = set->nr_hw_queues; + if (set->ops->map_queues && !is_kdump_kernel()) { int i; |