diff options
| author | James Smart <jsmart2021@gmail.com> | 2019-04-03 11:10:34 -0700 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2019-04-03 23:35:09 -0400 |
| commit | 4eb01535886644d79a58fe652e0782a194bc3402 (patch) | |
| tree | 519df6f6b4b5801ec16c561f719066a3fa5d079c | |
| parent | ed2e63aaec4fbf248275d2d83c4cfd65e069594f (diff) | |
| download | linux-4eb01535886644d79a58fe652e0782a194bc3402.tar.bz2 | |
scsi: lpfc: Fix missing wakeups on abort threads
Abort thread wakeups, 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@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_scsi.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index c98f264f1d83..a497b2c0cb79 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -3878,10 +3878,9 @@ 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)) { - lpfc_cmd->cur_iocbq.iocb_flag &= ~LPFC_DRIVER_ABORTED; - if (lpfc_cmd->waitq) - wake_up(lpfc_cmd->waitq); + lpfc_cmd->cur_iocbq.iocb_flag &= ~LPFC_DRIVER_ABORTED; + if (lpfc_cmd->waitq) { + wake_up(lpfc_cmd->waitq); lpfc_cmd->waitq = NULL; } spin_unlock(&lpfc_cmd->buf_lock); |