---

yaml
---
r: 168555
b: refs/heads/master
c: a6dbd42
h: refs/heads/master
i:
  168553: ba624d9
  168551: b924c74
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 33b258086441dd07e00133c79fcd8cbc6a76d737
+refs/heads/master: a6dbd429d8dd3382bbd9594b8d2ec74843a260d9

trunk/fs/btrfs/inode.c

@@ -5180,6 +5180,7 @@ struct inode *btrfs_alloc_inode(struct super_block *sb)
 	ei->logged_trans = 0;
 	ei->outstanding_extents = 0;
 	ei->reserved_extents = 0;
+	ei->root = NULL;
 	spin_lock_init(&ei->accounting_lock);
 	btrfs_ordered_inode_tree_init(&ei->ordered_tree);
 	INIT_LIST_HEAD(&ei->i_orphan);
@@ -5195,6 +5196,14 @@ void btrfs_destroy_inode(struct inode *inode)
 	WARN_ON(!list_empty(&inode->i_dentry));
 	WARN_ON(inode->i_data.nrpages);
 
+	/*
+	 * This can happen where we create an inode, but somebody else also
+	 * created the same inode and we need to destroy the one we already
+	 * created.
+	 */
+	if (!root)
+		goto free;
+
 	/*
 	 * Make sure we're properly removed from the ordered operation
 	 * lists.
@@ -5230,6 +5239,7 @@ void btrfs_destroy_inode(struct inode *inode)
 	}
 	inode_tree_del(inode);
 	btrfs_drop_extent_cache(inode, 0, (u64)-1, 0);
+free:
 	kmem_cache_free(btrfs_inode_cachep, BTRFS_I(inode));
 }