On Thu, Jul 31, 2014 at 06:52:37PM +0800, Eryu Guan wrote: > When testing with lvm, a previous btrfsck run could change df output > from something like > > /dev/mapper/rhel_hp--dl388eg8--01-testlv1 btrfs 15728640 900 13602172 1% /mnt/btrfs > > to > > /dev/dm-3 btrfs 15728640 900 13602172 1% /mnt/btrfs I don't follow you. Why would running btrfsck change the name of the device? If the filesystem is umounted and mounted again, then the device could change, but btrfsck should not be not doing the unmount/mount, and so unless the TEST_DEV/SCRATCH_DEV is changing the output of df should be identical... So before we change the _fs_type() code, can you explain exactly how, when and why the device name is changing to me? Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe fstests" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
