From: Andrea Parri (Microsoft) <parri.andrea@gmail.com> Sent: Wednesday, June 17, 2020 9:47 AM

storvsc uses the spinlock of the hv_device's primary channel to
serialize modifications of stor_chns[] performed by storvsc_do_io()
and storvsc_change_target_cpu(), when it could/should use a (per-)
storvsc_device spinlock: this change untangles the synchronization
mechanism for the (storvsc-specific) stor_chns[] array from the
"generic" VMBus code and data structures, clarifying the scope of
this synchronization mechanism.

Signed-off-by: Andrea Parri (Microsoft) <parri.andrea@gmail.com>
---
 drivers/scsi/storvsc_drv.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

FWIW, this patch will need to get routed to the SCSI maintainers and go through
the SCSI tree.

Reviewed-by: Michael Kelley <redacted>