btrfs: qgroup: Cleanup the old ref_node-oriented mechanism.

Goodbye, the old mechanisim.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
This commit is contained in:
Qu Wenruo 2015-04-17 10:23:16 +08:00 • committed by Chris Mason
commit e69bcee376
5 changed files with 3 additions and 972 deletions