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Btrfs: skip building backref tree for uuid and quota tree when doing balance relocation 

Quota tree and UUID Tree is only cowed, they can not be snapshoted.

Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
This commit is contained in:
Wang Shilong 2013-12-10 00:14:34 +08:00 committed by Chris Mason
parent c974c4642f
commit 6646374863
1 changed files with 3 additions and 1 deletions
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4
fs/btrfs/relocation.c
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@ -571,7 +571,9 @@ static int is_cowonly_root(u64 root_objectid)
root_objectid == BTRFS_CHUNK_TREE_OBJECTID ||
root_objectid == BTRFS_DEV_TREE_OBJECTID ||
root_objectid == BTRFS_TREE_LOG_OBJECTID ||
root_objectid == BTRFS_CSUM_TREE_OBJECTID)
root_objectid == BTRFS_CSUM_TREE_OBJECTID ||
root_objectid == BTRFS_UUID_TREE_OBJECTID ||
root_objectid == BTRFS_QUOTA_TREE_OBJECTID)
return 1;
return 0;
}