The patch below does not apply to the 4.19-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From b8fdd090376a7a46d17db316638fe54b965c2fb0 Mon Sep 17 00:00:00 2001
From: Bob Liu bob.liu@oracle.com Date: Tue, 24 Mar 2020 21:22:45 +0800 Subject: [PATCH] dm zoned: remove duplicate nr_rnd_zones increase in dmz_init_zone()
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
diff --git a/drivers/md/dm-zoned-metadata.c b/drivers/md/dm-zoned-metadata.c index 516c7b671d25..369de15c4e80 100644 --- a/drivers/md/dm-zoned-metadata.c +++ b/drivers/md/dm-zoned-metadata.c @@ -1109,7 +1109,6 @@ static int dmz_init_zone(struct blk_zone *blkz, unsigned int idx, void *data) switch (blkz->type) { case BLK_ZONE_TYPE_CONVENTIONAL: set_bit(DMZ_RND, &zone->flags); - zmd->nr_rnd_zones++; break; case BLK_ZONE_TYPE_SEQWRITE_REQ: case BLK_ZONE_TYPE_SEQWRITE_PREF: