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SubjectRE: [PATCH v4 3/9] scsi: ufshpb: Add region's reads counter
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> 
> Hi Avri,
>
> > +static void ufshpb_normalization_work_handler(struct work_struct *work)
> > +{
> > + struct ufshpb_lu *hpb;
> > + int rgn_idx;
> > +
> > + hpb = container_of(work, struct ufshpb_lu,
> ufshpb_normalization_work);
> > +
> > + for (rgn_idx = 0; rgn_idx < hpb->rgns_per_lu; rgn_idx++) {
> > + struct ufshpb_region *rgn = hpb->rgn_tbl + rgn_idx;
>
> *HERE*
> > + if (rgn->reads) {
> > + unsigned long flags;
> > +
> > + spin_lock_irqsave(&rgn->rgn_lock, flags);
>
> I thinks this lock should protect rgn->reads when it is accessed.
>
> > + rgn->reads = (rgn->reads >> 1);
> > + spin_unlock_irqrestore(&rgn->rgn_lock, flags);
> > + }
> *HERE*
Done.

>
> > +
> > + if (rgn->rgn_state != HPB_RGN_ACTIVE || rgn->reads)
> > + continue;
> > +
> > + /* if region is active but has no reads - inactivate it */
> > + spin_lock(&hpb->rsp_list_lock);
> > + ufshpb_update_inactive_info(hpb, rgn->rgn_idx);
> > + spin_unlock(&hpb->rsp_list_lock);
> > + }
> > +
> > + clear_bit(WORK_PENDING, &hpb->work_data_bits);
>
> Why we use work_data_bits? It may be checked by worker API.
Done.

>
> Thanks,
> Daejun
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