Abort thread wakeup, on some wqe types, are not happening.
The thread wakeup logic is dependent upon the LPFC_DRIVER_ABORTED
flag. However, on these wqes, the completion handler running
prior to the io completion routine ends up clearing the flag.
Rework the wakeup logic to look at a non-null waitq element
which must be set if the abort thread is waiting. This is reverting
the change in the indicated patch.
Fixes: c2017260eea2d ("scsi: lpfc: Rework locking on SCSI io completion")
Signed-off-by: Dick Kennedy <dick.kennedy@xxxxxxxxxxxx>
Signed-off-by: James Smart <jsmart2021@xxxxxxxxx>
---
drivers/scsi/lpfc/lpfc_scsi.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index 2cfb052d35d8..758889f9274b 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -3878,10 +3878,10 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
* wake up the thread.
*/
spin_lock(&lpfc_cmd->buf_lock);
- if (unlikely(lpfc_cmd->cur_iocbq.iocb_flag & LPFC_DRIVER_ABORTED)) {
+ if (unlikely(lpfc_cmd->cur_iocbq.iocb_flag & LPFC_DRIVER_ABORTED))
lpfc_cmd->cur_iocbq.iocb_flag &= ~LPFC_DRIVER_ABORTED;
- if (lpfc_cmd->waitq)
- wake_up(lpfc_cmd->waitq);
+ if (lpfc_cmd->waitq) {
+ wake_up(lpfc_cmd->waitq);
lpfc_cmd->waitq = NULL;
}
spin_unlock(&lpfc_cmd->buf_lock);
--
2.13.7
