RE: [PATCH 11/11] scsi: storvsc: Re-init stor_chns when a channel interrupt is re-assigned

[Michael Kelley]

From: Andrea Parri (Microsoft) <parri.andrea@xxxxxxxxx> Sent: Sunday, April 5, 2020 5:15 PM
> 
> For each storvsc_device, storvsc keeps track of the channel target CPUs
> associated to the device (alloced_cpus) and it uses this information to
> fill a "cache" (stor_chns) mapping CPU->channel according to a certain
> heuristic.  Update the alloced_cpus mask and the stor_chns array when a
> channel of the storvsc device is re-assigned to a different CPU.
> 
> Signed-off-by: Andrea Parri (Microsoft) <parri.andrea@xxxxxxxxx>
> Cc: "James E.J. Bottomley" <jejb@xxxxxxxxxxxxx>
> Cc: "Martin K. Petersen" <martin.petersen@xxxxxxxxxx>
> Cc: <linux-scsi@xxxxxxxxxxxxxxx>
> ---
>  drivers/hv/vmbus_drv.c     |  4 ++
>  drivers/scsi/storvsc_drv.c | 95 ++++++++++++++++++++++++++++++++++----
>  include/linux/hyperv.h     |  3 ++
>  3 files changed, 94 insertions(+), 8 deletions(-)
> 

Reviewed-by: Michael Kelley <mikelley@xxxxxxxxxxxxx>