Am 26.10.2015 um 07:24 hat Fam Zheng geschrieben: > Previously bdrv_drain and bdrv_drain_all don't handle ioctl, flush and discard > requests (which are fundamentally the same as read and write requests that > change disk state). Forgetting such requests leaves us in risk of violating > the invariant that bdrv_drain() callers rely on - all asynchronous requests > must have completed after bdrv_drain returns. > > Enrich the tracked request types, and add tracked_request_begin/end pairs to > all three code paths. As a prerequisite, ioctl code is moved into coroutine > too. > > The last two patches take care of QED's "need check" timer, so that after > bdrv_drain returns, the driver is in a consistent state.
Patches 1-3, 5-7 and 9: Reviewed-by: Kevin Wolf <kw...@redhat.com>