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

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