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[2/2] Btrfs: skip building backref tree for uuid and quota tree when doing balance relocation

Message ID 1386605674-3320-2-git-send-email-wangshilong1991@gmail.com (mailing list archive)
State Accepted, archived
Headers show

Commit Message

Wang Shilong Dec. 9, 2013, 4:14 p.m. UTC 
From: Wang Shilong <wangsl.fnst@cn.fujitsu.com>

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

Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
---
 fs/btrfs/relocation.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
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Patch

diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index 4dc7f26..df6e18e 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -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;
 }