Am 24.05.2019 um 19:28 hat Max Reitz geschrieben: > This enum indicates whether a file is stored on a rotating disk or a > solid-state drive. Drivers report it via the .bdrv_get_info() callback, > and if they do not, the global bdrv_get_info() implementation > automatically takes it from bs->file or bs->backing, if available.
Good that you wrote "bs->file or bs->backing" explicitly. Otherwise, I might have missed that it begs one big question: What is the correct answer for a qcow2 file that has bs->file on an SSD, but bs->backing on a rotating disk? I don't think there is a correct answer for the whole device, so maybe this information shouldn't be per device in BlockDriverInfo, but per block in bdrv_co_block_status() (optionally determined if the caller requests it)? Kevin
