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nvme-multipath: set BLK_FEAT_ZONED only after the zone info is known

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The namespace head is marked zoned at allocation time based only on the
command set identifier.  If the zone info query reports a zero zone size,
the path namespace is registered without zoned limits while the head
still advertises the zoned capability with a zone size of zero, and
reporting zones or writing to the head then shifts by ilog2(0).

Drop the zoned feature from the head allocation and let the head limits
refresh stack it in from the path namespace instead.

Fixes: 28982ad73d ("nvme: set BLK_FEAT_ZONED for ZNS multipath disks")
Fixes: 3838e80fcf ("nvme: skip the zoned limits update if the zone info query failed")
Cc: stable@vger.kernel.org
Signed-off-by: Guixin Liu <kanie@linux.alibaba.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
This commit is contained in:
Guixin Liu 2026-09-14 18:57:13 +08:00 committed by Keith Busch
parent 72ece656ab
commit 4a5e49ba0a
1 changed files with 0 additions and 2 deletions
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2
drivers/nvme/host/multipath.c
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@ -761,8 +761,6 @@ int nvme_mpath_alloc_disk(struct nvme_ctrl *ctrl, struct nvme_ns_head *head)
lim.dma_alignment = 3;
lim.features |= BLK_FEAT_IO_STAT | BLK_FEAT_NOWAIT |
BLK_FEAT_POLL | BLK_FEAT_ATOMIC_WRITES | BLK_FEAT_PCI_P2PDMA;
if (head->ids.csi == NVME_CSI_ZNS)
lim.features |= BLK_FEAT_ZONED;
head->disk = blk_alloc_disk(&lim, ctrl->numa_node);
if (IS_ERR(head->disk))