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| Started by | Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
|---|---|
| First post | 2017-09-24 23:30 +0200 |
| Last post | 2017-09-24 23:30 +0200 |
| Articles | 1 — 1 participant |
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[PATCH 4.4 44/66] scsi: megaraid_sas: Return pended IOCTLs with cmd_status MFI_STAT_WRONG_STATE in case adapter is dead Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-09-24 23:30 +0200
| From | Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
|---|---|
| Date | 2017-09-24 23:30 +0200 |
| Subject | [PATCH 4.4 44/66] scsi: megaraid_sas: Return pended IOCTLs with cmd_status MFI_STAT_WRONG_STATE in case adapter is dead |
| Message-ID | <utmDq-5ss-55@gated-at.bofh.it> |
4.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
commit eb3fe263a48b0d27b229c213929c4cb3b1b39a0f upstream.
After a kill adapter, since the cmd_status is not set, the IOCTLs will
be hung in driver resulting in application hang. Set cmd_status
MFI_STAT_WRONG_STATE when completing pended IOCTLs.
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/scsi/megaraid/megaraid_sas_base.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -1824,9 +1824,12 @@ static void megasas_complete_outstanding
if (cmd_fusion->sync_cmd_idx != (u32)ULONG_MAX) {
cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx];
if (cmd_mfi->sync_cmd &&
- cmd_mfi->frame->hdr.cmd != MFI_CMD_ABORT)
+ (cmd_mfi->frame->hdr.cmd != MFI_CMD_ABORT)) {
+ cmd_mfi->frame->hdr.cmd_status =
+ MFI_STAT_WRONG_STATE;
megasas_complete_cmd(instance,
cmd_mfi, DID_OK);
+ }
}
}
} else {
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