Bart,
> Clearing ch->device in ch_release() is wrong because that pointer must
> remain valid until ch_remove() is called. This patch fixes the
> following crash the second time a ch device is opened:
Applied to 5.4/scsi-fixes, thank you!
--
Martin K. Petersen Oracle Linux Engineering
Chandrakanth,
> Currently, MSIx vectors name appears in /proc/interrupts is "megasas"
> which is same for all the vectors. This patch provides the unique
> name to all megaraid_sas controllers and its associated MSIx interrupts.
>
> Suggested-by: Konstantin Shalygin
> Signed-off-by: Sumit Saxen
Don,
> These patches are based on Linus's tree
Applied to 5.5/scsi-queue. There was some fuzz but I think I figured it
out.
--
Martin K. Petersen Oracle Linux Engineering
Hannes,
> Some arrays are not capable of returning RTPG data during state
> transitioning, but rather return an 'LUN not accessible, asymmetric
> access state transition' sense code. In these cases we can set the
> state to 'transitioning' directly and don't need to evaluate the RTPG
> data (whi
Dan,
> This line is indented too far so it's a bit confusing.
Applied to 5.5/scsi-queue. Thank you!
--
Martin K. Petersen Oracle Linux Engineering
zhengbin,
> drivers/scsi/lpfc/lpfc_nportdisc.c:290:1: warning: symbol
> 'lpfc_defer_pt2pt_acc' was not declared. Should it be static?
Applied to 5.5/scsi-queue, thanks!
--
Martin K. Petersen Oracle Linux Engineering
Himanshu,
> Some storage arrays advertise FCP LUNs and NVMe namespaces behind the
> same WWN. The driver now offer's a user option by way of NVRAM
> parameter to allow users to choose, on a per port basis, the kind of
> FC-4 type they would like to prioritize for login.
Applied patches 8-14 to
On Wed, Oct 09, 2019 at 09:05:26AM -0700, Bart Van Assche wrote:
> On 10/9/19 2:32 AM, Ming Lei wrote:
> > @@ -354,7 +354,8 @@ void scsi_device_unbusy(struct scsi_device *sdev,
> > struct scsi_cmnd *cmd)
> > if (starget->can_queue > 0)
> > atomic_dec(&starget->target_busy);
> > -
Clearing ch->device in ch_release() is wrong because that pointer must
remain valid until ch_remove() is called. This patch fixes the following
crash the second time a ch device is opened:
BUG: kernel NULL pointer dereference, address: 0790
RIP: 0010:scsi_device_get+0x5/0x60
Call Trace
On 10/7/19 6:57 AM, Hannes Reinecke wrote:
Some arrays are not capable of returning RTPG data during state
transitioning, but rather return an 'LUN not accessible, asymmetric
access state transition' sense code. In these cases we
can set the state to 'transitioning' directly and don't need to
eva
On 10/9/19 2:32 AM, Ming Lei wrote:
Cc: Bart Van Assche
As one can see in the .mailmap file in the kernel tree I use my @acm.org
email address for kernel contributions. The above email address is no
longer valid since I left WDC more than a year ago.
Otherwise this patch looks fine to me.
On 10/9/19 2:32 AM, Ming Lei wrote:
@@ -354,7 +354,8 @@ void scsi_device_unbusy(struct scsi_device *sdev, struct
scsi_cmnd *cmd)
if (starget->can_queue > 0)
atomic_dec(&starget->target_busy);
- atomic_dec(&sdev->device_busy);
+ if (!blk_queue_nonrot(sdev->reques
SCSI core uses the atomic variable of sdev->device_busy to track
in-flight IO requests dispatched to this scsi device. IO request may be
submitted from any CPU, so the cost for maintaining the shared atomic
counter can be very big on big NUMA machine with lots of CPU cores.
sdev->queue_depth is us
It isn't necessary to check the host depth in scsi_queue_rq() any more
since it has been respected by blk-mq before calling scsi_queue_rq() via
getting driver tag.
Lots of LUNs may attach to same host and per-host IOPS may reach millions,
so we should avoid expensive atomic operations on the host-
Hi,
The 1st patch kills the atomic host-wide counter of host_busy.
The 2nd patch bypass the atomic LUN-wide connter of device_busy
for fast SSD device.
V4:
- fix one build waring, just a line change in scsi_dev_queue_ready()
V3:
- use non-atomic set/clear bit operations as sugge
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/scsi/megaraid/megaraid_sas_fp.c: In function MR_GetSpanBlock:
drivers/scsi/megaraid/megaraid_sas_fp.c:400:16: warning: variable debugBlk set
but not used [-Wunused-but-set-variable]
drivers/scsi/megaraid/megaraid_sas_fp.c: In function mr_span
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