From: Niklas Cassel <niklas.cassel@wdc.com>
Date: Wed, 1 Dec 2021 14:28:30 +0000
Subject: [PATCH] scsi: sd_zbc: Simplify zone full condition check
Git-commit: 13202ebf5f331ca83f5ab47eb90ca4ef5489ac80
Patch-mainline: v5.16-rc1
References: jsc#PED-1559
According to the ZBC (and ZAC) specification, a zone that has Zone Type set
to Conventional, must also have its Zone Condition set to "Not Write
Pointer".
Therefore, a conventional zone will never have Zone Condition set to
"Full", which means that we can omit the non-conventional prerequisite from
the zone full condition check.
Link: https://lore.kernel.org/r/20211201142821.64650-1-Niklas.Cassel@wdc.com
Suggested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Hannes Reinecke <hare@suse.com>
---
drivers/scsi/sd_zbc.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/scsi/sd_zbc.c b/drivers/scsi/sd_zbc.c
index ed06798983f8..749c5e5a70c7 100644
--- a/drivers/scsi/sd_zbc.c
+++ b/drivers/scsi/sd_zbc.c
@@ -62,8 +62,7 @@ static int sd_zbc_parse_report(struct scsi_disk *sdkp, u8 *buf,
zone.capacity = zone.len;
zone.start = logical_to_sectors(sdp, get_unaligned_be64(&buf[16]));
zone.wp = logical_to_sectors(sdp, get_unaligned_be64(&buf[24]));
- if (zone.type != ZBC_ZONE_TYPE_CONV &&
- zone.cond == ZBC_ZONE_COND_FULL)
+ if (zone.cond == ZBC_ZONE_COND_FULL)
zone.wp = zone.start + zone.len;
ret = cb(&zone, idx, data);
--
2.35.3