dax_alive
if (!dax_alive(dev_dax->dax_dev))
if (!dax_dev || !dax_alive(dax_dev) || !igrab(&dax_dev->inode))
if (!dax_dev || !dax_alive(dax_dev) || !igrab(&dax_dev->inode)) {
if (!dax_alive(dax_dev))
if (!dax_alive(dax_dev))
if (!dax_alive(dax_dev))
if (!dax_alive(dax_dev))
if (!dax_alive(dax_dev)) {
EXPORT_SYMBOL_GPL(dax_alive);
bool dax_alive(struct dax_device *dax_dev);