Re: [PATCH 01/15] hisi_sas: save completion queue read pointer

[Hannes Reinecke]

On 09/06/2016 05:36 PM, John Garry wrote:
> Optimise by saving an avoidable read in the cq
> interrupt.
> The queue read pointer will only be updated
> by software, so don't bother re-reading
> what was already written in the previous interrupt.
> 
> Signed-off-by: John Garry <john.garry@xxxxxxxxxx>
> ---
>  drivers/scsi/hisi_sas/hisi_sas.h       | 1 +
>  drivers/scsi/hisi_sas/hisi_sas_v1_hw.c | 6 ++----
>  drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 5 ++---
>  3 files changed, 5 insertions(+), 7 deletions(-)
> 
Reviewed-by: Hannes Reinecke <hare@xxxxxxxx>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		      zSeries & Storage
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