commit 51a8cf9d2d97017d334f33f1b39067bd2f03bc49
author Liu Bo <liubo2009@cn.fujitsu.com> Tue Jul 10 05:28:38 2012 -0600
committer Chris Mason <chris.mason@fusionio.com> Mon Jul 23 16:28:00 2012 -0400
tree a80be16062c2f5ff10d766852cf9d79a852aa0ef
parent c0901581ad077004145c9ee80e843fba71c100b8

Btrfs: fix btrfs_is_free_space_inode to recognize btree inode

For btree inode, its root is also 'tree root', so btree inode can be
misunderstood as a free space inode.

We should add one more check for btree inode.

Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>

fs/btrfs/btrfs_inode.h

diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h
index 12394a9..b168238 100644
--- a/fs/btrfs/btrfs_inode.h
+++ b/fs/btrfs/btrfs_inode.h
@@ -194,8 +194,10 @@
 static inline bool btrfs_is_free_space_inode(struct btrfs_root *root,
 				       struct inode *inode)
 {
-	if (root == root->fs_info->tree_root ||
-	    BTRFS_I(inode)->location.objectid == BTRFS_FREE_INO_OBJECTID)
+	if (root == root->fs_info->tree_root &&
+	    btrfs_ino(inode) != BTRFS_BTREE_INODE_OBJECTID)
+		return true;
+	if (BTRFS_I(inode)->location.objectid == BTRFS_FREE_INO_OBJECTID)
 		return true;
 	return false;
 }