From: Damien Le Moal <damien.lemoal@wdc.com>
Date: Thu, 26 Dec 2019 15:54:25 +0900
Subject: [PATCH] null_blk: Fix REQ_OP_ZONE_CLOSE handling
Git-commit: c7d776f85dfe5159ebf621ee1e50e555237b1a25
Patch-Mainline: v5.5-rc5
References: bsc#1175995,jsc#SLE-15608
In order to match ZBC defined behavior, closing an empty zone must
result in the "empty" zone condition instead of the "closed" condition.
Fixes: da644b2cc1a4 ("null_blk: add zone open, close, and finish support")
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Hannes Reinecke <hare@suse.de>
---
drivers/block/null_blk_zoned.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/block/null_blk_zoned.c b/drivers/block/null_blk_zoned.c
index d4d88b581822..5cf49d9db95e 100644
--- a/drivers/block/null_blk_zoned.c
+++ b/drivers/block/null_blk_zoned.c
@@ -186,7 +186,10 @@ static blk_status_t null_zone_mgmt(struct nullb_cmd *cmd, enum req_opf op,
if (zone->cond == BLK_ZONE_COND_FULL)
return BLK_STS_IOERR;
- zone->cond = BLK_ZONE_COND_CLOSED;
+ if (zone->wp == zone->start)
+ zone->cond = BLK_ZONE_COND_EMPTY;
+ else
+ zone->cond = BLK_ZONE_COND_CLOSED;
break;
case REQ_OP_ZONE_FINISH:
if (zone->type == BLK_ZONE_TYPE_CONVENTIONAL)
--
2.16.4