[PATCH 0/3] scsi: fix issue with Linux guest and unit attention

[Stefano Garzarella]

This series tries to fix a problem highlighted by the commit 8cc5583abe
("virtio-scsi: Send "REPORTED LUNS CHANGED" sense data upon disk hotplug
events").

We initially thought about reverting that commit, but now we have found
a pre-existing issue introduced by commit 1880ad4f4e ("virtio-scsi:
Batched prepare for cmd reqs"). More details in the discussion of the
reverting tentative [1].

Thanks to Thomas for identifying the commit that highlighted the problem
and providing an easy way to reproduce the issue, Stefan for his useful
comments, Mike for the scsi logs, and a big thanks to Paolo for his help
in preparing this series!

Stefano

[1] 
https://lore.kernel.org/qemu-devel/i3od362o6unuimlqna3aaedliaabauj6g545esg7txidd4s44e@bkx5des6zytx/

Stefano Garzarella (3):
  scsi: fetch unit attention when creating the request
  scsi: cleanup scsi_clear_unit_attention()
  scsi: clear unit attention only for REPORT LUNS commands

 include/hw/scsi/scsi.h |  1 +
 hw/scsi/scsi-bus.c     | 78 ++++++++++++++++++++++--------------------
 2 files changed, 41 insertions(+), 38 deletions(-)

-- 
2.41.0