Hi, 在 2025/9/3 21:24, Christoph Hellwig 写道:
On Mon, Sep 01, 2025 at 11:32:07AM +0800, Yu Kuai wrote:static inline void blkcg_bio_issue_init(struct bio *bio) { - bio->issue_time_ns = blk_time_get_ns(); + struct request_queue *q = bdev_get_queue(bio->bi_bdev); + + if (test_bit(QUEUE_FLAG_BIO_ISSUE, &q->queue_flags)) + bio->issue_time_ns = blk_time_get_ns(); }Given that this is called on a bio and called from generic code and not blk-mq, the flag should in the gendisk and not the queue.
ok, will change to disk, and also change set/clear the flag to enable/disable iolatency. Thanks, Kuai
