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| author | Quinn Tran | 2018-09-04 23:19:16 +0200 |
|---|---|---|
| committer | Martin K. Petersen | 2018-09-12 02:28:08 +0200 |
| commit | 0aca77843e2803bf4fab1598b7891c56c16be979 (patch) | |
| tree | d713491d47a410f9f89450841791b71bb130d41b /drivers/scsi/qla2xxx/qla_os.c | |
| parent | scsi: qla2xxx: Move {get|rel}_sp to base_qpair struct (diff) | |
| download | kernel-qcow2-linux-0aca77843e2803bf4fab1598b7891c56c16be979.tar.gz kernel-qcow2-linux-0aca77843e2803bf4fab1598b7891c56c16be979.tar.xz kernel-qcow2-linux-0aca77843e2803bf4fab1598b7891c56c16be979.zip | |
scsi: qla2xxx: Reduce holding sess_lock to prevent CPU lock-up
- Reduce sess_lock holding to prevent CPU Lock up. sess_lock was held across
fc_port registration and deletion. These calls can be blocked by upper
layer. Sess_lock is also being accessed by interrupt thread.
- Reduce number of loops in processing work_list to prevent kernel complaint
of CPU lockup or holding sess_lock.
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_os.c')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_os.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 210e5c2999f4..b8b7415bc59d 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -2730,7 +2730,7 @@ static void qla2x00_iocb_work_fn(struct work_struct *work) struct scsi_qla_host, iocb_work); struct qla_hw_data *ha = vha->hw; struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); - int i = 20; + int i = 2; unsigned long flags; if (test_bit(UNLOADING, &base_vha->dpc_flags)) @@ -4603,7 +4603,6 @@ struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht, spin_lock_init(&vha->work_lock); spin_lock_init(&vha->cmd_list_lock); - spin_lock_init(&vha->gnl.fcports_lock); init_waitqueue_head(&vha->fcport_waitQ); init_waitqueue_head(&vha->vref_waitq); |