Btrfs-progs: add command to set default subvol

This introduces a new btrfsctl option, -m, to allow you to set the default'ly
mounted subvolume.  You can do

btrfsctl -m /your/subvolume

and that will make that subvolume the subvolume that is mounted by default, or
you can do

btrfsctl -m <treeid> /any/subvolume

and this will make the subvolume with tree id <treeid> the default'ly mounted
subvolume.  You can get the treeid by using the listing option.  Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

0 files changed, 0 insertions, 0 deletions