On Tue, Jan 18, 2022 at 11:47:33PM +0800, Ming Lei wrote:
> On Tue, Jan 18, 2022 at 09:22:59AM +0100, Christoph Hellwig wrote:
> > How does this work for SCSI where we can detach the disk from the
> > request queue, reattach it and then maybe later free them both?
>
> Commit 8e141f9eb803 ("block: drain file system I/O on del_gendisk") has
> marked queue as dying, so how can the above case work given no any code
> clears the queue's dying flag?
oops, my fault, blk_queue_start_drain() actually doesn't set
QUEUE_FLAG_DYING, so the rettach case works with commit 8e141f9eb803.
Thanks,
Ming
