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    Subject[PATCH 5.11 287/775] nvme-multipath: set nr_zones for zoned namespaces
    Date
    From: Keith Busch <kbusch@kernel.org>

    [ Upstream commit 73a1a2298f3e9df24cea7a9aab412ba9470f6159 ]

    The bio based drivers only require the request_queue's nr_zones is set,
    so set this field in the head if the namespace path is zoned.

    Fixes: 240e6ee272c07 ("nvme: support for zoned namespaces")
    Reported-by: Minwoo Im <minwoo.im.dev@gmail.com>
    Cc: Damien Le Moal <damien.lemoal@wdc.com>
    Signed-off-by: Keith Busch <kbusch@kernel.org>
    Signed-off-by: Christoph Hellwig <hch@lst.de>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/nvme/host/multipath.c | 4 ++++
    1 file changed, 4 insertions(+)

    diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c
    index 282b7a4ea9a9a..fdfc18a222cc3 100644
    --- a/drivers/nvme/host/multipath.c
    +++ b/drivers/nvme/host/multipath.c
    @@ -677,6 +677,10 @@ void nvme_mpath_add_disk(struct nvme_ns *ns, struct nvme_id_ns *id)
    if (blk_queue_stable_writes(ns->queue) && ns->head->disk)
    blk_queue_flag_set(QUEUE_FLAG_STABLE_WRITES,
    ns->head->disk->queue);
    +#ifdef CONFIG_BLK_DEV_ZONED
    + if (blk_queue_is_zoned(ns->queue) && ns->head->disk)
    + ns->head->disk->queue->nr_zones = ns->queue->nr_zones;
    +#endif
    }

    void nvme_mpath_remove_disk(struct nvme_ns_head *head)
    --
    2.27.0


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