Yes, this is a good one. Please add a single sentence blurb explaing the issue before the Test prodecure? With that this looks good: Reviewed-by: Christoph Hellwig <hch@xxxxxx> On Thu, Nov 03, 2022 at 10:55:40AM +0800, Yu Kuai wrote: > From: Yu Kuai <yukuai3@xxxxxxxxxx> > > Test procedures: > > 1) dmsetup create test --table "xxx sda", assume dm-0 is created > 2) dmsetup suspend test > 3) dmsetup reload test --table "xxx dm-0" > 4) dmsetup resume test Can you wire this up for blocktests? I've also been wondering how we could wire your other two test cases up as I think they'be very useful. Hopefully I can find some time to inject delays with eBPF or something like it.