blk-sysfs: add a new attr_group for blk_mq
Currently wbt sysfs entry is created for bio based device, and wbt can be enabled for such device through sysfs while it doesn't make sense because wbt can only work for rq based device. In the meantime, there are other similar sysfs entries. Fix this by adding a new attr_group for blk_mq, and sysfs entries will only be created when the device is rq based. Suggested-by:Christoph Hellwig <hch@lst.de> Signed-off-by:
Yu Kuai <yukuai3@huawei.com> Reviewed-by:
Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20230527010644.647900-6-yukuai1@huaweicloud.com Signed-off-by:
Jens Axboe <axboe@kernel.dk>
parent
eebc21d1
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