diff options
| author | Quinn Tran <quinn.tran@qlogic.com> | 2015-12-17 14:57:07 -0500 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2016-01-07 13:57:48 -0800 |
| commit | 2f424b9b36ad7062e9ade41a9fb034d21a9e4e4b (patch) | |
| tree | 16b9022e3a39b29ea0d495db00610e0535fe805a /drivers/scsi/qla2xxx/qla_os.c | |
| parent | fb3269baf4ecc2ce6d17d4eb537080035bdf6d5b (diff) | |
qla2xxx: Move atioq to a different lock to reduce lock contention
99% of the time the ATIOQ has SCSI command. The other 1% of time
is something else. Most of the time this interrupt does not need
to hold the hardware_lock. We're moving the ATIO interrupt thread
to a different lock to reduce lock contention.
Signed-off-by: Quinn Tran <quinn.tran@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_os.c')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_os.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 0484acb3ff16..eff8bea0dab3 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -2337,6 +2337,8 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) INIT_LIST_HEAD(&ha->tgt.q_full_list); spin_lock_init(&ha->tgt.q_full_lock); spin_lock_init(&ha->tgt.sess_lock); + spin_lock_init(&ha->tgt.atio_lock); + /* Clear our data area */ ha->bars = bars; |