From: Damien Le Moal <damien.lemoal@wdc.com>
Date: Thu, 14 May 2020 17:19:53 +0900
Subject: [PATCH] scsi: sd: Signal drive managed SMR disks
Git-commit: 0bd735df7681e41647a69b1fad0eb5594c60a727
Patch-mainline: v5.8-rc1
References: git-fixes
Print a message indicating that a disk is a drive-managed SMR model when
such drive is found using the ZONED field of the Block Device
Characteristics VPD page (IDENTIFY data on ATA side).
[mkp: typo]
Link: https://lore.kernel.org/r/20200514081953.1252087-1-damien.lemoal@wdc.com
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Hannes Reinecke <hare@suse.com>
---
drivers/scsi/sd.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index a793cb08d025..8929e178c6f8 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -2955,6 +2955,9 @@ static void sd_read_block_characteristics(struct scsi_disk *sdkp)
* with partitions as regular block devices.
*/
q->limits.zoned = BLK_ZONED_NONE;
+ if (sdkp->zoned == 2 && sdkp->first_scan)
+ sd_printk(KERN_NOTICE, sdkp,
+ "Drive-managed SMR disk\n");
}
}
if (blk_queue_is_zoned(q) && sdkp->first_scan)
--
2.29.2