On Fri, Oct 20, 2017 at 10:37:38AM +0300, Elena Reshetova wrote:> } else if (dd->dm_dev->mode != (mode | dd->dm_dev->mode)) {> r = upgrade_mode(dd, mode, t->md);> if (r)> return r;> + refcount_inc(&dd->count);> }Missing here: else refcount_inc(&dd->count);?Alasdair