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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Bob Liu <bob.liu@oracle.com>,
        Damien Le Moal <damien.lemoal@wdc.com>,
        Mike Snitzer <snitzer@redhat.com>,
        Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.4 218/232] dm zoned: remove duplicate nr_rnd_zones increase in dmz_init_zone()
Date:   Thu, 16 Apr 2020 15:25:12 +0200
Message-Id: <20200416131342.752816897@linuxfoundation.org>
In-Reply-To: <20200416131316.640996080@linuxfoundation.org>
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From: Bob Liu <bob.liu@oracle.com>

[ Upstream commit b8fdd090376a7a46d17db316638fe54b965c2fb0 ]

zmd->nr_rnd_zones was increased twice by mistake. The other place it
is increased in dmz_init_zone() is the only one needed:

1131                 zmd->nr_useable_zones++;
1132                 if (dmz_is_rnd(zone)) {
1133                         zmd->nr_rnd_zones++;
					^^^
Fixes: 3b1a94c88b79 ("dm zoned: drive-managed zoned block device target")
Cc: stable@vger.kernel.org
Signed-off-by: Bob Liu <bob.liu@oracle.com>
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/md/dm-zoned-metadata.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/md/dm-zoned-metadata.c b/drivers/md/dm-zoned-metadata.c
index 5205cf9bbfd92..e0a6cf9239f1c 100644
--- a/drivers/md/dm-zoned-metadata.c
+++ b/drivers/md/dm-zoned-metadata.c
@@ -1107,7 +1107,6 @@ static int dmz_init_zone(struct dmz_metadata *zmd, struct dm_zone *zone,
 
 	if (blkz->type == BLK_ZONE_TYPE_CONVENTIONAL) {
 		set_bit(DMZ_RND, &zone->flags);
-		zmd->nr_rnd_zones++;
 	} else if (blkz->type == BLK_ZONE_TYPE_SEQWRITE_REQ ||
 		   blkz->type == BLK_ZONE_TYPE_SEQWRITE_PREF) {
 		set_bit(DMZ_SEQ, &zone->flags);
-- 
2.20.1