nbd: check sock index in nbd_read_stat()
The sock that clent send request in nbd_send_cmd() and receive reply in nbd_read_stat() should be the same. Signed-off-by: Yu Kuai <yukuai3@huawei.com> Reviewed-by: Ming Lei <ming.lei@redhat.com> Reviewed-by: Josef Bacik <josef@toxicpanda.com> Link: https://lore.kernel.org/r/20210916093350.1410403-4-yukuai3@huawei.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
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07175cb1
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