On 11/13/2018 11:47 PM, Anand Jain wrote:
On 11/13/2018 11:31 PM, David Sterba wrote:
On Mon, Oct 01, 2018 at 09:31:04PM +0800, Anand Jain wrote:
+ /*
+ * we are going to replace the device path, make sure its the
+ * same device if the device mounted
+ */
+ if (device->bdev) {
+ struct block_device *path_bdev;
+
+ path_bdev = lookup_bdev(path);
+ if (IS_ERR(path_bdev)) {
+ mutex_unlock(&fs_devices->device_list_mutex);
+ return ERR_CAST(path_bdev);
+ }
+
+ if (device->bdev != path_bdev) {
+ bdput(path_bdev);
+ mutex_unlock(&fs_devices->device_list_mutex);
+ return ERR_PTR(-EEXIST);
I have installed ubuntu with btrfs as root and with a subvol to be
mounted at boot. Its working fine.
Thanks, Anand
