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Update all accesses to the phba->active_rrq_list with a new phba->rrq_list_lock. Signed-off-by: Justin Tee --- drivers/scsi/lpfc/lpfc.h | 1 + drivers/scsi/lpfc/lpfc_init.c | 1 + drivers/scsi/lpfc/lpfc_nvmet.c | 2 ++ drivers/scsi/lpfc/lpfc_scsi.c | 4 +++- drivers/scsi/lpfc/lpfc_sli.c | 22 +++++++++++++++------- 5 files changed, 22 insertions(+), 8 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h index 98ca7df003ef..44a7155daf61 100644 --- a/drivers/scsi/lpfc/lpfc.h +++ b/drivers/scsi/lpfc/lpfc.h @@ -1284,6 +1284,7 @@ struct lpfc_hba { uint32_t total_scsi_bufs; struct list_head lpfc_iocb_list; uint32_t total_iocbq_bufs; + spinlock_t rrq_list_lock; /* lock for active_rrq_list */ struct list_head active_rrq_list; spinlock_t hbalock; struct work_struct unblock_request_work; /* SCSI layer unblock IOs */ diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index f7a0aa3625f4..bd8f97cab2c6 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -14812,6 +14812,7 @@ lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) goto out_unset_pci_mem_s4; } + spin_lock_init(&phba->rrq_list_lock); INIT_LIST_HEAD(&phba->active_rrq_list); INIT_LIST_HEAD(&phba->fcf.fcf_pri_list); diff --git a/drivers/scsi/lpfc/lpfc_nvmet.c b/drivers/scsi/lpfc/lpfc_nvmet.c index 561ced5503c6..0b91de86d845 100644 --- a/drivers/scsi/lpfc/lpfc_nvmet.c +++ b/drivers/scsi/lpfc/lpfc_nvmet.c @@ -1811,7 +1811,9 @@ lpfc_sli4_nvmet_xri_aborted(struct lpfc_hba *phba, ctxp->flag &= ~LPFC_NVME_XBUSY; spin_unlock_irqrestore(&ctxp->ctxlock, iflag); + spin_lock_irqsave(&phba->rrq_list_lock, iflag); rrq_empty = list_empty(&phba->active_rrq_list); + spin_unlock_irqrestore(&phba->rrq_list_lock, iflag); ndlp = lpfc_findnode_did(phba->pport, ctxp->sid); if (ndlp && (ndlp->nlp_state == NLP_STE_UNMAPPED_NODE || diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index 89a622e3053e..8ff39cd9c7e2 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -474,9 +474,11 @@ lpfc_sli4_io_xri_aborted(struct lpfc_hba *phba, ndlp = psb->rdata->pnode; else ndlp = NULL; + spin_unlock_irqrestore(&phba->hbalock, iflag); + spin_lock_irqsave(&phba->rrq_list_lock, iflag); rrq_empty = list_empty(&phba->active_rrq_list); - spin_unlock_irqrestore(&phba->hbalock, iflag); + spin_unlock_irqrestore(&phba->rrq_list_lock, iflag); if (ndlp && !offline) { lpfc_set_rrq_active(phba, ndlp, psb->cur_iocbq.sli4_lxritag, rxid, 1); diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index fa3d458af193..c64151cd205e 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -1026,7 +1026,10 @@ lpfc_handle_rrq_active(struct lpfc_hba *phba) spin_lock_irqsave(&phba->hbalock, iflags); phba->hba_flag &= ~HBA_RRQ_ACTIVE; + spin_unlock_irqrestore(&phba->hbalock, iflags); + next_time = jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov + 1)); + spin_lock_irqsave(&phba->rrq_list_lock, iflags); list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) { if (time_after(jiffies, rrq->rrq_stop_time)) @@ -1034,7 +1037,7 @@ lpfc_handle_rrq_active(struct lpfc_hba *phba) else if (time_before(rrq->rrq_stop_time, next_time)) next_time = rrq->rrq_stop_time; } - spin_unlock_irqrestore(&phba->hbalock, iflags); + spin_unlock_irqrestore(&phba->rrq_list_lock, iflags); if ((!list_empty(&phba->active_rrq_list)) && (!test_bit(FC_UNLOADING, &phba->pport->load_flag))) mod_timer(&phba->rrq_tmr, next_time); @@ -1072,16 +1075,16 @@ lpfc_get_active_rrq(struct lpfc_vport *vport, uint16_t xri, uint32_t did) if (phba->sli_rev != LPFC_SLI_REV4) return NULL; - spin_lock_irqsave(&phba->hbalock, iflags); + spin_lock_irqsave(&phba->rrq_list_lock, iflags); list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) { if (rrq->vport == vport && rrq->xritag == xri && rrq->nlp_DID == did){ list_del(&rrq->list); - spin_unlock_irqrestore(&phba->hbalock, iflags); + spin_unlock_irqrestore(&phba->rrq_list_lock, iflags); return rrq; } } - spin_unlock_irqrestore(&phba->hbalock, iflags); + spin_unlock_irqrestore(&phba->rrq_list_lock, iflags); return NULL; } @@ -1109,7 +1112,7 @@ lpfc_cleanup_vports_rrqs(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) lpfc_sli4_vport_delete_els_xri_aborted(vport); lpfc_sli4_vport_delete_fcp_xri_aborted(vport); } - spin_lock_irqsave(&phba->hbalock, iflags); + spin_lock_irqsave(&phba->rrq_list_lock, iflags); list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) { if (rrq->vport != vport) continue; @@ -1118,7 +1121,7 @@ lpfc_cleanup_vports_rrqs(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) list_move(&rrq->list, &rrq_list); } - spin_unlock_irqrestore(&phba->hbalock, iflags); + spin_unlock_irqrestore(&phba->rrq_list_lock, iflags); list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) { list_del(&rrq->list); @@ -1213,11 +1216,16 @@ lpfc_set_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp, rrq->nlp_DID = ndlp->nlp_DID; rrq->vport = ndlp->vport; rrq->rxid = rxid; - spin_lock_irqsave(&phba->hbalock, iflags); + + spin_lock_irqsave(&phba->rrq_list_lock, iflags); empty = list_empty(&phba->active_rrq_list); list_add_tail(&rrq->list, &phba->active_rrq_list); + spin_unlock_irqrestore(&phba->rrq_list_lock, iflags); + + spin_lock_irqsave(&phba->hbalock, iflags); phba->hba_flag |= HBA_RRQ_ACTIVE; spin_unlock_irqrestore(&phba->hbalock, iflags); + if (empty) lpfc_worker_wake_up(phba); return 0;