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@xxxxxxxxxxxxxxxxxx>
---
drivers/scsi/ipr.c | 16 ++++++++++++----
1 file changed, 12 insertions(+), 4 deletions(-)
diff -puN drivers/scsi/ipr.c~ipr_fix_missed_eh_wakeup drivers/scsi/ipr.c
--- linux-2.6.git/drivers/scsi/ipr.c~ipr_fix_missed_eh_wakeup 2017-03-13 14:52:17.974545318 -0500
+++ linux-2.6.git-bjking1/drivers/scsi/ipr.c 2017-03-13 17:03:13.635568644 -0500
@@ -836,8 +836,10 @@ static void ipr_sata_eh_done(struct ipr_
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
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
}
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_cmn
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);
_
