diff options
| author | James Smart <james.smart@emulex.com> | 2012-08-14 22:26:28 +0400 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-09-14 20:59:25 +0400 |
| commit | 92e3af663ab6ef7db888f3d3ffb7568fab870127 (patch) | |
| tree | 855bc0466d0ca239335a6ff08ed91e9ed83c556e /drivers/scsi/lpfc | |
| parent | 1c13bf664894b34ace55fce49cc49598267787b7 (diff) | |
| download | linux-92e3af663ab6ef7db888f3d3ffb7568fab870127.tar.xz | |
[SCSI] lpfc 8.3.34: Correct lock handling to eliminate reset escalation on I/O abort
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/lpfc')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_scsi.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index 5ab21f7dc3fc..64013f3097ad 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -3829,12 +3829,15 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn, cmd->scsi_done(cmd); if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { + spin_lock_irq(&phba->hbalock); + lpfc_cmd->pCmd = NULL; + spin_unlock_irq(&phba->hbalock); + /* * If there is a thread waiting for command completion * wake up the thread. */ spin_lock_irqsave(shost->host_lock, flags); - lpfc_cmd->pCmd = NULL; if (lpfc_cmd->waitq) wake_up(lpfc_cmd->waitq); spin_unlock_irqrestore(shost->host_lock, flags); @@ -3868,12 +3871,15 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn, } } + spin_lock_irq(&phba->hbalock); + lpfc_cmd->pCmd = NULL; + spin_unlock_irq(&phba->hbalock); + /* * If there is a thread waiting for command completion * wake up the thread. */ spin_lock_irqsave(shost->host_lock, flags); - lpfc_cmd->pCmd = NULL; if (lpfc_cmd->waitq) wake_up(lpfc_cmd->waitq); spin_unlock_irqrestore(shost->host_lock, flags); @@ -4409,7 +4415,7 @@ lpfc_abort_handler(struct scsi_cmnd *cmnd) } lpfc_cmd = (struct lpfc_scsi_buf *)cmnd->host_scribble; - if (!lpfc_cmd) { + if (!lpfc_cmd || !lpfc_cmd->pCmd) { spin_unlock_irq(&phba->hbalock); lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, "2873 SCSI Layer I/O Abort Request IO CMPL Status " |