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virtio_blk: Fix default logical block size fallback
If we fail to read a logical block size in virtblk_read_limits() -> virtio_cread_feature(), then we default to what is in lim->logical_block_size, but that would be 0. We can deal with lim->logical_block_size = 0 later in the blk_mq_alloc_disk(), but the code in virtblk_read_limits() needs a proper default, so give a default of SECTOR_SIZE. Fixes: 27e32cd ("block: pass a queue_limits argument to blk_mq_alloc_disk") Reviewed-by: Christoph Hellwig <[email protected]> Acked-by: Michael S. Tsirkin <[email protected]> Reviewed-by: Stefan Hajnoczi <[email protected]> Signed-off-by: John Garry <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
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