2f375ab9c5
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> |
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