From: Pankaj Raghav p.raghav@samsung.com
commit 726be2c72efc0a64c206e854b8996ad3ab9c7507 upstream.
commit 2f4c9ba23b88 ("nvme: export zoned namespaces without Zone Append support read-only") marks zoned namespaces without append support read-only. It does iso by setting NVME_NS_FORCE_RO in ns->flags in nvme_update_zone_info and checking for that flag later in nvme_update_disk_info to mark the disk as read-only.
But commit 73d90386b559 ("nvme: cleanup zone information initialization") rearranged nvme_update_disk_info to be called before nvme_update_zone_info and thus not marking the disk as read-only. The call order cannot be just reverted because nvme_update_zone_info sets certain queue parameters such as zone_write_granularity that depend on the prior call to nvme_update_disk_info.
Remove the call to set_disk_ro in nvme_update_disk_info. and call set_disk_ro after nvme_update_zone_info and nvme_update_disk_info to set the permission for ZNS drives correctly. The same applies to the multipath disk path.
Fixes: 73d90386b559 ("nvme: cleanup zone information initialization") Signed-off-by: Pankaj Raghav p.raghav@samsung.com Signed-off-by: Christoph Hellwig hch@lst.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/nvme/host/core.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)
--- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -1860,9 +1860,6 @@ static void nvme_update_disk_info(struct nvme_config_discard(disk, ns); blk_queue_max_write_zeroes_sectors(disk->queue, ns->ctrl->max_zeroes_sectors); - - set_disk_ro(disk, (id->nsattr & NVME_NS_ATTR_RO) || - test_bit(NVME_NS_FORCE_RO, &ns->flags)); }
static inline bool nvme_first_scan(struct gendisk *disk) @@ -1923,6 +1920,8 @@ static int nvme_update_ns_info(struct nv goto out_unfreeze; }
+ set_disk_ro(ns->disk, (id->nsattr & NVME_NS_ATTR_RO) || + test_bit(NVME_NS_FORCE_RO, &ns->flags)); set_bit(NVME_NS_READY, &ns->flags); blk_mq_unfreeze_queue(ns->disk->queue);
@@ -1935,6 +1934,9 @@ static int nvme_update_ns_info(struct nv if (nvme_ns_head_multipath(ns->head)) { blk_mq_freeze_queue(ns->head->disk->queue); nvme_update_disk_info(ns->head->disk, ns, id); + set_disk_ro(ns->head->disk, + (id->nsattr & NVME_NS_ATTR_RO) || + test_bit(NVME_NS_FORCE_RO, &ns->flags)); nvme_mpath_revalidate_paths(ns); blk_stack_limits(&ns->head->disk->queue->limits, &ns->queue->limits, 0);