diff options
| -rw-r--r-- | fs/btrfs/file.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index 934bc094bf17..1e8c024c69c3 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -746,6 +746,7 @@ int btrfs_mark_extent_written(struct btrfs_trans_handle *trans, u64 other_end; u64 split = start; u64 locked_end = end; + u64 orig_parent; int extent_type; int split_end = 1; int ret; @@ -890,6 +891,12 @@ again: } btrfs_mark_buffer_dirty(leaf); + + orig_parent = leaf->start; + ret = btrfs_inc_extent_ref(trans, root, bytenr, num_bytes, + orig_parent, root->root_key.objectid, + trans->transid, inode->i_ino); + BUG_ON(ret); btrfs_release_path(root, path); key.offset = start; @@ -910,10 +917,13 @@ again: btrfs_set_file_extent_encryption(leaf, fi, 0); btrfs_set_file_extent_other_encoding(leaf, fi, 0); - ret = btrfs_inc_extent_ref(trans, root, bytenr, num_bytes, - leaf->start, root->root_key.objectid, - trans->transid, inode->i_ino); - BUG_ON(ret); + if (orig_parent != leaf->start) { + ret = btrfs_update_extent_ref(trans, root, bytenr, + orig_parent, leaf->start, + root->root_key.objectid, + trans->transid, inode->i_ino); + BUG_ON(ret); + } done: btrfs_mark_buffer_dirty(leaf); btrfs_release_path(root, path); |