6.1-stable review patch. If anyone has any objections, please let me know.
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From: Michael Kelley mikelley@microsoft.com
[ Upstream commit 31d16e712bdcaee769de4780f72ff8d6cd3f0589 ]
Hyper-V synthetic SCSI devices do not support the MAINTENANCE_IN SCSI command, so scsi_report_opcode() always fails, resulting in messages like this:
hv_storvsc <guid>: tag#205 cmd 0xa3 status: scsi 0x2 srb 0x86 hv 0xc0000001
The recently added support for command duration limits calls scsi_report_opcode() four times as each device comes online, which significantly increases the number of messages logged in a system with many disks.
Fix the problem by always marking Hyper-V synthetic SCSI devices as not supporting scsi_report_opcode(). With this setting, the MAINTENANCE_IN SCSI command is not issued and no messages are logged.
Signed-off-by: Michael Kelley mikelley@microsoft.com Link: https://lore.kernel.org/r/1686343101-18930-1-git-send-email-mikelley@microso... Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/storvsc_drv.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c index 83d09c2009280..7a1dc5c7c49ee 100644 --- a/drivers/scsi/storvsc_drv.c +++ b/drivers/scsi/storvsc_drv.c @@ -1568,6 +1568,8 @@ static int storvsc_device_configure(struct scsi_device *sdevice) { blk_queue_rq_timeout(sdevice->request_queue, (storvsc_timeout * HZ));
+ /* storvsc devices don't support MAINTENANCE_IN SCSI cmd */ + sdevice->no_report_opcodes = 1; sdevice->no_write_same = 1;
/*