nvme: fix sector units when going between formats

If you format a device with a 4k sector size back to 512 bytes, the queue
limit values for physical block size and minimum IO size were not getting
updated; only the logical block size was being updated.  This patch adds
code to update the physical block and IO minimum sizes.

Signed-off-by: Jeff Lien <jeff.lien@wdc.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 1e46e60..961d6a4 100644 (file)
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -1335,6 +1335,7 @@ static void nvme_update_disk_info(struct gendisk *disk,
                struct nvme_ns *ns, struct nvme_id_ns *id)
 {
        sector_t capacity = le64_to_cpup(&id->nsze) << (ns->lba_shift - 9);
+       unsigned short bs = 1 << ns->lba_shift;
        unsigned stream_alignment = 0;
 
        if (ns->ctrl->nr_streams && ns->sws && ns->sgs)
@@ -1343,7 +1344,10 @@ static void nvme_update_disk_info(struct gendisk *disk,
        blk_mq_freeze_queue(disk->queue);
        blk_integrity_unregister(disk);
 
-       blk_queue_logical_block_size(disk->queue, 1 << ns->lba_shift);
+       blk_queue_logical_block_size(disk->queue, bs);
+       blk_queue_physical_block_size(disk->queue, bs);
+       blk_queue_io_min(disk->queue, bs);
+
        if (ns->ms && !ns->ext &&
            (ns->ctrl->ops->flags & NVME_F_METADATA_SUPPORTED))
                nvme_init_integrity(disk, ns->ms, ns->pi_type);