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scsi: ipr: Fix missed EH wakeup 

Following a command abort or device reset, ipr's EH handlers wait for
the commands getting aborted to get sent back from the adapter prior to
returning from the EH handler. This fixes up some cases where the
completion handler was not getting called, which would have resulted in
the EH thread waiting until it timed out, greatly extending EH time.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Reviewed-by: Wendy Xiong <wenxiong@linux.vnet.ibm.com>
Tested-by: Wendy Xiong <wenxiong@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Brian King 2017-03-15 16:58:36 -05:00 committed by Martin K. Petersen
parent 4935933e07
commit 66a0d59cdd
1 changed files with 12 additions and 4 deletions
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16
drivers/scsi/ipr.c
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@ -836,8 +836,10 @@ static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
qc->err_mask |= AC_ERR_OTHER;
sata_port->ioasa.status |= ATA_BUSY;
list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
ata_qc_complete(qc);
if (ipr_cmd->eh_comp)
complete(ipr_cmd->eh_comp);
list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
}
/**
@ -5947,8 +5949,10 @@ static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
res->in_erp = 0;
}
scsi_dma_unmap(ipr_cmd->scsi_cmd);
list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
scsi_cmd->scsi_done(scsi_cmd);
if (ipr_cmd->eh_comp)
complete(ipr_cmd->eh_comp);
list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
}
/**
@ -6338,8 +6342,10 @@ static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
}
scsi_dma_unmap(ipr_cmd->scsi_cmd);
list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
scsi_cmd->scsi_done(scsi_cmd);
if (ipr_cmd->eh_comp)
complete(ipr_cmd->eh_comp);
list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
}
/**
@ -6365,8 +6371,10 @@ static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
scsi_dma_unmap(scsi_cmd);
spin_lock_irqsave(ipr_cmd->hrrq->lock, lock_flags);
list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
scsi_cmd->scsi_done(scsi_cmd);
if (ipr_cmd->eh_comp)
complete(ipr_cmd->eh_comp);
list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
spin_unlock_irqrestore(ipr_cmd->hrrq->lock, lock_flags);
} else {
spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);