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SubjectRe: [PATCH 01/15] hisi_sas: save completion queue read pointer
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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@huawei.com>
> ---
> 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@suse.com>

Cheers,

Hannes
--
Dr. Hannes Reinecke zSeries & Storage
hare@suse.de +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg)

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