| Message ID | 20200404070844.GA17505@192.168.3.9 (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | block: save previous hardware queue count before udpate | expand |
diff --git a/block/blk-mq.c b/block/blk-mq.c index f6291ceedee4..c86d1c81d3d6 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -3342,12 +3342,11 @@ static void __blk_mq_update_nr_hw_queues(struct blk_mq_tag_set *set, blk_mq_sysfs_unregister(q); } + prev_nr_hw_queues = set->nr_hw_queues; if (blk_mq_realloc_tag_set_tags(set, set->nr_hw_queues, nr_hw_queues) < 0) goto reregister; - prev_nr_hw_queues = set->nr_hw_queues; - set->nr_hw_queues = nr_hw_queues; blk_mq_update_queue_map(set); fallback: list_for_each_entry(q, &set->tag_list, tag_set_list) {
blk_mq_realloc_tag_set_tags will update set->nr_hw_queues, so save old set->nr_hw_queues before call this function. Since set->nr_hw_queues has been updated in blk_mq_realloc_tag_set_tags, no need set it again. Signed-off-by: Weiping Zhang <zhangweiping@didiglobal.com> --- block/blk-mq.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)