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SubjectRe: [PATCH v2] scsi: virtio_scsi: unplug LUNs when events missed
On Thu, Sep 05, 2019 at 06:19:28PM +0000, Matt Lupfer wrote:
> The event handler calls scsi_scan_host() when events are missed, which
> will hotplug new LUNs. However, this function won't remove any
> unplugged LUNs. The result is that hotunplug doesn't work properly when
> the number of unplugged LUNs exceeds the event queue size (currently 8).
> Scan existing LUNs when events are missed to check if they are still
> present. If not, remove them.
> Signed-off-by: Matt Lupfer <>
> ---
> drivers/scsi/virtio_scsi.c | 33 +++++++++++++++++++++++++++++++++
> 1 file changed, 33 insertions(+)

Please include a changelog in future patch revisions. For example:

Signed-off-by: ...
* Replaced magic constants with sd.h constants [Michael]

Just C and virtio code review, no SCSI specifics:

Reviewed-by: Stefan Hajnoczi <>
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