Yan 2f375ab9c5 Call btrfs_cow_block while lowering tree level. ... When freeing root block of a tree, btrfs_free_extent' parameter 'ref_generation' is from root block itseft. When freeing non-root block, 'ref_generation' is from its parent. so when converting a non-root block to root block, we must guarantee its generation is equal to its parent's generation. Signed-off-by: Chris Mason <chris.mason@oracle.com>		2008-09-25 11:04:00 -04:00
fs/btrfs	Call btrfs_cow_block while lowering tree level.	2008-09-25 11:04:00 -04:00