This is a note to let you know that I've just added the patch titled
scsi: lpfc: Remove extra atomic_inc on cmd_pending in queuecommand after VMID
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
scsi-lpfc-remove-extra-atomic_inc-on-cmd_pending-in-.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 1b118d426a9477a697c4ec0251b0e68d20125365
Author: James Smart <jsmart2021@xxxxxxxxx>
Date: Fri Jul 1 14:14:17 2022 -0700
scsi: lpfc: Remove extra atomic_inc on cmd_pending in queuecommand after VMID
[ Upstream commit 0948a9c5386095baae4012190a6b65aba684a907 ]
VMID introduced an extra increment of cmd_pending, causing double-counting
of the I/O. The normal increment ios performed in lpfc_get_scsi_buf.
Link: https://lore.kernel.org/r/20220701211425.2708-5-jsmart2021@xxxxxxxxx
Fixes: 33c79741deaf ("scsi: lpfc: vmid: Introduce VMID in I/O path")
Cc: <stable@xxxxxxxxxxxxxxx> # v5.14+
Co-developed-by: Justin Tee <justin.tee@xxxxxxxxxxxx>
Signed-off-by: Justin Tee <justin.tee@xxxxxxxxxxxx>
Signed-off-by: James Smart <jsmart2021@xxxxxxxxx>
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index b43dfcb81185..7da8e4c845df 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -5707,7 +5707,6 @@ lpfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd)
cur_iocbq->cmd_flag |= LPFC_IO_VMID;
}
}
- atomic_inc(&ndlp->cmd_pending);
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
if (unlikely(phba->hdwqstat_on & LPFC_CHECK_SCSI_IO))
