dax: unmap/truncate on device shutdown



Invalidate all mappings of a device-dax instance when the device is
unregistered.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>

parent 3bc52c45

drivers/dax/dax.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -550,6 +550,7 @@ static void unregister_dax_dev(void *dev)
		*/
		dax_dev->alive = false;
		synchronize_rcu();
		unmap_mapping_range(dax_dev->inode->i_mapping, 0, 0, 1);
		cdev_del(cdev);
		device_unregister(dev);
		}