Messages in this thread | | | Subject | Re: [PATCH 01/15] hisi_sas: save completion queue read pointer | From | Hannes Reinecke <> | Date | Wed, 14 Sep 2016 13:46:32 +0200 |
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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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