This is a note to let you know that I've just added the patch titled nvme-multipath: set nr_zones for zoned namespaces to the 5.10-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: nvme-multipath-set-nr_zones-for-zoned-namespaces.patch and it can be found in the queue-5.10 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit c9385229fbd45cc83f440da583764a43ad46dc04 Author: Keith Busch <kbusch@xxxxxxxxxx> Date: Fri Feb 5 11:50:02 2021 -0800 nvme-multipath: set nr_zones for zoned namespaces [ 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@xxxxxxxxx> Cc: Damien Le Moal <damien.lemoal@xxxxxxx> Signed-off-by: Keith Busch <kbusch@xxxxxxxxxx> Signed-off-by: Christoph Hellwig <hch@xxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c index 292e535a385d4..e812a0d0fdb3d 100644 --- a/drivers/nvme/host/multipath.c +++ b/drivers/nvme/host/multipath.c @@ -676,6 +676,10 @@ 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)