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[SCSI] lpfc 8.3.38: Fixed circular locking dependency and inconsistent lock state issues

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Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
James Smart
2013-03-01 16:37:44 -05:00
committed by James Bottomley
parent 9466150489
commit 38c2067366
4 changed files with 20 additions and 18 deletions
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8
drivers/scsi/lpfc/lpfc_init.c
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@@ -2914,9 +2914,9 @@ lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
sglq_entry->state = SGL_FREED;
list_add_tail(&sglq_entry->list, &els_sgl_list);
}
spin_lock(&phba->hbalock);
spin_lock_irq(&phba->hbalock);
list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
spin_unlock(&phba->hbalock);
spin_unlock_irq(&phba->hbalock);
} else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
/* els xri-sgl shrinked */
xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
@@ -3014,9 +3014,9 @@ lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
psb->cur_iocbq.sli4_lxritag = lxri;
psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
}
spin_lock(&phba->scsi_buf_list_lock);
spin_lock_irq(&phba->scsi_buf_list_lock);
list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list);
spin_unlock(&phba->scsi_buf_list_lock);
spin_unlock_irq(&phba->scsi_buf_list_lock);
return 0;