From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
This patch removes the now legacy host_lock unlock() + lock() optimization
from ql4_os.c:qla4xxx_queuecommand(). This also includes setting the
SHT->unlocked_qcmd=1 for host_lock less qla4xxx qla4xxx_queuecommand operation.
Signed-off-by: Nicholas A. Bellinger <nab@xxxxxxxxxxxxxxx>
---
drivers/scsi/qla4xxx/ql4_os.c | 9 ++-------
1 files changed, 2 insertions(+), 7 deletions(-)
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 370d40f..b14bc71 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -113,6 +113,7 @@ static struct scsi_host_template qla4xxx_driver_template = {
.scan_start = qla4xxx_scan_start,
.this_id = -1,
+ .unlocked_qcmd = 1,
.cmd_per_lun = 3,
.use_clustering = ENABLE_CLUSTERING,
.sg_tablesize = SG_ALL,
@@ -511,26 +512,20 @@ static int qla4xxx_queuecommand(struct scsi_cmnd *cmd,
test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))
goto qc_host_busy;
- spin_unlock_irq(ha->host->host_lock);
-
srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd, done);
if (!srb)
- goto qc_host_busy_lock;
+ goto qc_host_busy;
rval = qla4xxx_send_command_to_isp(ha, srb);
if (rval != QLA_SUCCESS)
goto qc_host_busy_free_sp;
- spin_lock_irq(ha->host->host_lock);
return 0;
qc_host_busy_free_sp:
qla4xxx_srb_free_dma(ha, srb);
mempool_free(srb, ha->srb_mempool);
-qc_host_busy_lock:
- spin_lock_irq(ha->host->host_lock);
-
qc_host_busy:
return SCSI_MLQUEUE_HOST_BUSY;
--
1.7.3
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