diff --git a/fs/btrfs/Makefile b/fs/btrfs/Makefile
index d5804c5..ab9a9f8 100644
--- a/fs/btrfs/Makefile
+++ b/fs/btrfs/Makefile
@@ -5,7 +5,7 @@
 btrfs-y := super.o ctree.o extent-tree.o print-tree.o root-tree.o dir-item.o \
 	   hash.o file-item.o inode-item.o inode-map.o disk-io.o \
 	   transaction.o bit-radix.o inode.o file.o tree-defrag.o \
-	   extent_map.o sysfs.o struct-funcs.o xattr.o acl.o
+	   extent_map.o sysfs.o struct-funcs.o xattr.o acl.o ordered-data.o
 
 #btrfs-y := ctree.o disk-io.o radix-tree.o extent-tree.o print-tree.o \
 #	  root-tree.o dir-item.o hash.o file-item.o inode-item.o \
diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h
index d1d5af4..f27e633 100644
--- a/fs/btrfs/btrfs_inode.h
+++ b/fs/btrfs/btrfs_inode.h
@@ -29,6 +29,7 @@
 	struct extent_map_tree extent_tree;
 	struct inode vfs_inode;
 
+	u64 ordered_trans;
 	/*
 	 * transid of the trans_handle that last modified this inode
 	 */
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 35c5707..43d2314 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -221,7 +221,9 @@
 		    struct extent_buffer **cow_ret)
 {
 	u64 search_start;
+	u64 header_trans;
 	int ret;
+
 	if (trans->transaction != root->fs_info->running_transaction) {
 		printk(KERN_CRIT "trans %Lu running %Lu\n", trans->transid,
 		       root->fs_info->running_transaction->transid);
@@ -232,7 +234,9 @@
 		       root->fs_info->generation);
 		WARN_ON(1);
 	}
-	if (btrfs_header_generation(buf) == trans->transid) {
+
+	header_trans = btrfs_header_generation(buf);
+	if (header_trans == trans->transid) {
 		*cow_ret = buf;
 		return 0;
 	}
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 9873975..b55dba5 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -16,8 +16,8 @@
  * Boston, MA 021110-1307, USA.
  */
 
-#ifndef __BTRFS__
-#define __BTRFS__
+#ifndef __BTRFS_CTREE__
+#define __BTRFS_CTREE__
 
 #include <linux/version.h>
 #include <linux/mm.h>
@@ -363,7 +363,6 @@
 	struct inode *inode;
 	struct kobject root_kobj;
 	struct completion kobj_unregister;
-	struct rw_semaphore snap_sem;
 	u64 objectid;
 	u64 last_trans;
 
@@ -1142,6 +1141,8 @@
 long btrfs_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
 struct inode *btrfs_iget_locked(struct super_block *s, u64 objectid,
 				struct btrfs_root *root);
+struct inode *btrfs_ilookup(struct super_block *s, u64 objectid,
+			    u64 root_objectid);
 int btrfs_commit_write(struct file *file, struct page *page,
 		       unsigned from, unsigned to);
 struct extent_map *btrfs_get_extent(struct inode *inode, struct page *page,
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index a6170ff..34cf1f1 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -406,7 +406,6 @@
 	memset(&root->defrag_progress, 0, sizeof(root->defrag_progress));
 	memset(&root->root_kobj, 0, sizeof(root->root_kobj));
 	init_completion(&root->kobj_unregister);
-	init_rwsem(&root->snap_sem);
 	root->defrag_running = 0;
 	root->defrag_level = 0;
 	root->root_key.objectid = objectid;
@@ -498,6 +497,21 @@
 	return root;
 }
 
+struct btrfs_root *btrfs_lookup_fs_root(struct btrfs_fs_info *fs_info,
+					u64 root_objectid)
+{
+	struct btrfs_root *root;
+
+	if (root_objectid == BTRFS_ROOT_TREE_OBJECTID)
+		return fs_info->tree_root;
+	if (root_objectid == BTRFS_EXTENT_TREE_OBJECTID)
+		return fs_info->extent_root;
+
+	root = radix_tree_lookup(&fs_info->fs_roots_radix,
+				 (unsigned long)root_objectid);
+	return root;
+}
+
 struct btrfs_root *btrfs_read_fs_root_no_name(struct btrfs_fs_info *fs_info,
 					      struct btrfs_key *location)
 {
diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h
index 8c3cfd0..dae9fba 100644
--- a/fs/btrfs/disk-io.h
+++ b/fs/btrfs/disk-io.h
@@ -34,6 +34,8 @@
 		      struct btrfs_root *root);
 struct extent_buffer *btrfs_find_tree_block(struct btrfs_root *root,
 					    u64 bytenr, u32 blocksize);
+struct btrfs_root *btrfs_lookup_fs_root(struct btrfs_fs_info *fs_info,
+					u64 root_objectid);
 struct btrfs_root *btrfs_read_fs_root(struct btrfs_fs_info *fs_info,
 				      struct btrfs_key *location,
 				      const char *name, int namelen);
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index c906bb1..68137cd 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -1195,7 +1195,9 @@
 			if (btrfs_buffer_uptodate(buf)) {
 				u64 transid =
 				    root->fs_info->running_transaction->transid;
-				if (btrfs_header_generation(buf) == transid) {
+				u64 header_transid =
+					btrfs_header_generation(buf);
+				if (header_transid == transid) {
 					free_extent_buffer(buf);
 					return 1;
 				}
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 94c9337..0a5f4de 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -34,6 +34,7 @@
 #include "disk-io.h"
 #include "transaction.h"
 #include "btrfs_inode.h"
+#include "ordered-data.h"
 #include "ioctl.h"
 #include "print-tree.h"
 
@@ -329,6 +330,7 @@
 		root->fs_info->delalloc_bytes += (end_of_last_block + 1 -
 					  start_pos) - existing_delalloc;
 		spin_unlock(&root->fs_info->delalloc_lock);
+		btrfs_add_ordered_inode(inode);
 	} else {
 		u64 aligned_end;
 		/* step one, delete the existing extents in this range */
@@ -724,8 +726,6 @@
 
 	pages = kmalloc(nrptrs * sizeof(struct page *), GFP_KERNEL);
 
-	down_read(&BTRFS_I(inode)->root->snap_sem);
-
 	mutex_lock(&inode->i_mutex);
 	first_index = pos >> PAGE_CACHE_SHIFT;
 	last_index = (pos + count) >> PAGE_CACHE_SHIFT;
@@ -804,7 +804,6 @@
 	}
 out:
 	mutex_unlock(&inode->i_mutex);
-	up_read(&BTRFS_I(inode)->root->snap_sem);
 
 out_nolock:
 	kfree(pages);
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 6d0cd9a..6d6e1ac 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -135,6 +135,7 @@
 		alloc_hint = ins.objectid + ins.offset;
 		start += cur_alloc_size;
 	}
+	btrfs_add_ordered_inode(inode);
 out:
 	btrfs_end_transaction(trans, root);
 	return ret;
@@ -367,8 +368,8 @@
 	path = btrfs_alloc_path();
 	BUG_ON(!path);
 	mutex_lock(&root->fs_info->fs_mutex);
-
 	memcpy(&location, &BTRFS_I(inode)->location, sizeof(location));
+
 	ret = btrfs_lookup_inode(NULL, root, path, &location, 0);
 	if (ret)
 		goto make_bad;
@@ -898,7 +899,6 @@
 	if ((offset & (blocksize - 1)) == 0)
 		goto out;
 
-	down_read(&root->snap_sem);
 	ret = -ENOMEM;
 	page = grab_cache_page(mapping, index);
 	if (!page)
@@ -917,7 +917,6 @@
 
 	unlock_page(page);
 	page_cache_release(page);
-	up_read(&BTRFS_I(inode)->root->snap_sem);
 out:
 	return ret;
 }
@@ -1146,6 +1145,19 @@
 		args->root == BTRFS_I(inode)->root);
 }
 
+struct inode *btrfs_ilookup(struct super_block *s, u64 objectid,
+			    u64 root_objectid)
+{
+	struct btrfs_iget_args args;
+	args.ino = objectid;
+	args.root = btrfs_lookup_fs_root(btrfs_sb(s)->fs_info, root_objectid);
+
+	if (!args.root)
+		return NULL;
+
+	return ilookup5(s, objectid, btrfs_find_actor, (void *)&args);
+}
+
 struct inode *btrfs_iget_locked(struct super_block *s, u64 objectid,
 				struct btrfs_root *root)
 {
@@ -1336,7 +1348,6 @@
 
 			d_type = btrfs_filetype_table[btrfs_dir_type(leaf, di)];
 			btrfs_dir_item_key_to_cpu(leaf, di, &location);
-
 			over = filldir(dirent, name_ptr, name_len,
 				       found_key.offset,
 				       location.objectid,
@@ -2054,7 +2065,6 @@
 
 	ret = -EINVAL;
 
-	down_read(&BTRFS_I(inode)->root->snap_sem);
 	lock_page(page);
 	wait_on_page_writeback(page);
 	size = i_size_read(inode);
@@ -2075,7 +2085,6 @@
 	ret = btrfs_cow_one_page(inode, page, end);
 
 out_unlock:
-	up_read(&BTRFS_I(inode)->root->snap_sem);
 	unlock_page(page);
 out:
 	return ret;
@@ -2118,7 +2127,7 @@
 	struct btrfs_root_item root_item;
 	struct btrfs_inode_item *inode_item;
 	struct extent_buffer *leaf;
-	struct btrfs_root *new_root;
+	struct btrfs_root *new_root = root;
 	struct inode *inode;
 	struct inode *dir;
 	int ret;
@@ -2230,7 +2239,7 @@
 		goto fail;
 fail:
 	nr = trans->blocks_used;
-	err = btrfs_commit_transaction(trans, root);
+	err = btrfs_commit_transaction(trans, new_root);
 	if (err && !ret)
 		ret = err;
 fail_commit:
@@ -2253,10 +2262,6 @@
 	if (!root->ref_cows)
 		return -EINVAL;
 
-	down_write(&root->snap_sem);
-	freeze_bdev(root->fs_info->sb->s_bdev);
-	thaw_bdev(root->fs_info->sb->s_bdev, root->fs_info->sb);
-
 	mutex_lock(&root->fs_info->fs_mutex);
 	ret = btrfs_check_free_space(root, 1, 0);
 	if (ret)
@@ -2264,6 +2269,9 @@
 
 	trans = btrfs_start_transaction(root, 1);
 	BUG_ON(!trans);
+	err = btrfs_commit_transaction(trans, root);
+
+	trans = btrfs_start_transaction(root, 1);
 
 	ret = btrfs_update_inode(trans, root, root->inode);
 	if (ret)
@@ -2272,9 +2280,7 @@
 	ret = btrfs_find_free_objectid(trans, root->fs_info->tree_root,
 				       0, &objectid);
 	if (ret)
-		goto fail;
-
-	memcpy(&new_root_item, &root->root_item,
+		goto fail; memcpy(&new_root_item, &root->root_item,
 	       sizeof(new_root_item));
 
 	key.objectid = objectid;
@@ -2285,12 +2291,20 @@
 	btrfs_cow_block(trans, root, root->node, NULL, 0, &tmp);
 	free_extent_buffer(tmp);
 
+	/* write the ordered inodes to force all delayed allocations to
+	 * be filled.  Once this is done, we can copy the root
+	 */
+	mutex_lock(&root->fs_info->trans_mutex);
+	btrfs_write_ordered_inodes(trans, root);
+	mutex_unlock(&root->fs_info->trans_mutex);
+
 	btrfs_copy_root(trans, root, root->node, &tmp, objectid);
 
 	btrfs_set_root_bytenr(&new_root_item, tmp->start);
 	btrfs_set_root_level(&new_root_item, btrfs_header_level(tmp));
 	ret = btrfs_insert_root(trans, root->fs_info->tree_root, &key,
 				&new_root_item);
+printk("new root %Lu node %Lu\n", objectid, tmp->start);
 	free_extent_buffer(tmp);
 	if (ret)
 		goto fail;
@@ -2321,7 +2335,6 @@
 		ret = err;
 fail_unlock:
 	mutex_unlock(&root->fs_info->fs_mutex);
-	up_write(&root->snap_sem);
 	btrfs_btree_balance_dirty(root, nr);
 	return ret;
 }
@@ -2608,6 +2621,7 @@
 	if (!ei)
 		return NULL;
 	ei->last_trans = 0;
+	ei->ordered_trans = 0;
 	return &ei->vfs_inode;
 }
 
diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c
new file mode 100644
index 0000000..411aba8
--- /dev/null
+++ b/fs/btrfs/ordered-data.c
@@ -0,0 +1,221 @@
+/*
+ * Copyright (C) 2007 Oracle.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ */
+
+#include <linux/gfp.h>
+#include <linux/slab.h>
+#include "ctree.h"
+#include "transaction.h"
+#include "btrfs_inode.h"
+
+struct tree_entry {
+	u64 root_objectid;
+	u64 objectid;
+	struct rb_node rb_node;
+};
+
+/*
+ * returns > 0 if entry passed (root, objectid) is > entry,
+ * < 0 if (root, objectid) < entry and zero if they are equal
+ */
+static int comp_entry(struct tree_entry *entry, u64 root_objectid,
+		      u64 objectid)
+{
+	if (root_objectid < entry->root_objectid)
+		return -1;
+	if (root_objectid > entry->root_objectid)
+		return 1;
+	if (objectid < entry->objectid)
+		return -1;
+	if (objectid > entry->objectid)
+		return 1;
+	return 0;
+}
+
+static struct rb_node *tree_insert(struct rb_root *root, u64 root_objectid,
+				   u64 objectid, struct rb_node *node)
+{
+	struct rb_node ** p = &root->rb_node;
+	struct rb_node * parent = NULL;
+	struct tree_entry *entry;
+	int comp;
+
+	while(*p) {
+		parent = *p;
+		entry = rb_entry(parent, struct tree_entry, rb_node);
+
+		comp = comp_entry(entry, root_objectid, objectid);
+		if (comp < 0)
+			p = &(*p)->rb_left;
+		else if (comp > 0)
+			p = &(*p)->rb_right;
+		else
+			return parent;
+	}
+
+	rb_link_node(node, parent, p);
+	rb_insert_color(node, root);
+	return NULL;
+}
+
+static struct rb_node *__tree_search(struct rb_root *root, u64 root_objectid,
+				     u64 objectid, struct rb_node **prev_ret)
+{
+	struct rb_node * n = root->rb_node;
+	struct rb_node *prev = NULL;
+	struct tree_entry *entry;
+	struct tree_entry *prev_entry = NULL;
+	int comp;
+
+	while(n) {
+		entry = rb_entry(n, struct tree_entry, rb_node);
+		prev = n;
+		prev_entry = entry;
+		comp = comp_entry(entry, root_objectid, objectid);
+
+		if (comp < 0)
+			n = n->rb_left;
+		else if (comp > 0)
+			n = n->rb_right;
+		else
+			return n;
+	}
+	if (!prev_ret)
+		return NULL;
+
+	while(prev && comp_entry(prev_entry, root_objectid, objectid) >= 0) {
+		prev = rb_next(prev);
+		prev_entry = rb_entry(prev, struct tree_entry, rb_node);
+	}
+	*prev_ret = prev;
+	return NULL;
+}
+
+static inline struct rb_node *tree_search(struct rb_root *root,
+					  u64 root_objectid, u64 objectid)
+{
+	struct rb_node *prev;
+	struct rb_node *ret;
+	ret = __tree_search(root, root_objectid, objectid, &prev);
+	if (!ret)
+		return prev;
+	return ret;
+}
+
+int btrfs_add_ordered_inode(struct inode *inode)
+{
+	struct btrfs_root *root = BTRFS_I(inode)->root;
+	u64 root_objectid = root->root_key.objectid;
+	u64 transid = root->fs_info->running_transaction->transid;
+	struct tree_entry *entry;
+	struct rb_node *node;
+	struct btrfs_ordered_inode_tree *tree;
+
+	if (transid <= BTRFS_I(inode)->ordered_trans)
+		return 0;
+
+	tree = &root->fs_info->running_transaction->ordered_inode_tree;
+
+	read_lock(&tree->lock);
+	node = __tree_search(&tree->tree, root_objectid, inode->i_ino, NULL);
+	read_unlock(&tree->lock);
+	if (node) {
+		return 0;
+	}
+
+	entry = kmalloc(sizeof(*entry), GFP_NOFS);
+	if (!entry)
+		return -ENOMEM;
+
+	write_lock(&tree->lock);
+	entry->objectid = inode->i_ino;
+	entry->root_objectid = root_objectid;
+
+	node = tree_insert(&tree->tree, root_objectid,
+			   inode->i_ino, &entry->rb_node);
+
+	BTRFS_I(inode)->ordered_trans = transid;
+
+	write_unlock(&tree->lock);
+	if (node)
+		kfree(entry);
+	return 0;
+}
+
+int btrfs_find_first_ordered_inode(struct btrfs_ordered_inode_tree *tree,
+				       u64 *root_objectid, u64 *objectid)
+{
+	struct tree_entry *entry;
+	struct rb_node *node;
+
+	write_lock(&tree->lock);
+	node = tree_search(&tree->tree, *root_objectid, *objectid);
+	if (!node) {
+		write_unlock(&tree->lock);
+		return 0;
+	}
+	entry = rb_entry(node, struct tree_entry, rb_node);
+
+	while(comp_entry(entry, *root_objectid, *objectid) >= 0) {
+		node = rb_next(node);
+		if (!node)
+			break;
+		entry = rb_entry(node, struct tree_entry, rb_node);
+	}
+	if (!node) {
+		write_unlock(&tree->lock);
+		return 0;
+	}
+
+	*root_objectid = entry->root_objectid;
+	*objectid = entry->objectid;
+	write_unlock(&tree->lock);
+	return 1;
+}
+
+int btrfs_find_del_first_ordered_inode(struct btrfs_ordered_inode_tree *tree,
+				       u64 *root_objectid, u64 *objectid)
+{
+	struct tree_entry *entry;
+	struct rb_node *node;
+
+	write_lock(&tree->lock);
+	node = tree_search(&tree->tree, *root_objectid, *objectid);
+	if (!node) {
+		write_unlock(&tree->lock);
+		return 0;
+	}
+
+	entry = rb_entry(node, struct tree_entry, rb_node);
+	while(comp_entry(entry, *root_objectid, *objectid) >= 0) {
+		node = rb_next(node);
+		if (!node)
+			break;
+		entry = rb_entry(node, struct tree_entry, rb_node);
+	}
+	if (!node) {
+		write_unlock(&tree->lock);
+		return 0;
+	}
+
+	*root_objectid = entry->root_objectid;
+	*objectid = entry->objectid;
+	rb_erase(node, &tree->tree);
+	write_unlock(&tree->lock);
+	kfree(entry);
+	return 1;
+}
diff --git a/fs/btrfs/ordered-data.h b/fs/btrfs/ordered-data.h
new file mode 100644
index 0000000..aaf9eb1
--- /dev/null
+++ b/fs/btrfs/ordered-data.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2007 Oracle.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ */
+
+#ifndef __BTRFS_ORDERED_DATA__
+#define __BTRFS_ORDERED_DATA__
+
+struct btrfs_ordered_inode_tree {
+	rwlock_t lock;
+	struct rb_root tree;
+};
+
+static inline void
+btrfs_ordered_inode_tree_init(struct btrfs_ordered_inode_tree *t)
+{
+	rwlock_init(&t->lock);
+	t->tree.rb_node = NULL;
+}
+
+int btrfs_add_ordered_inode(struct inode *inode);
+int btrfs_find_del_first_ordered_inode(struct btrfs_ordered_inode_tree *tree,
+				       u64 *root_objectid, u64 *objectid);
+int btrfs_find_first_ordered_inode(struct btrfs_ordered_inode_tree *tree,
+				       u64 *root_objectid, u64 *objectid);
+#endif
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 02721ee..3ed5868 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -67,6 +67,7 @@
 		cur_trans->commit_done = 0;
 		cur_trans->start_time = get_seconds();
 		list_add_tail(&cur_trans->list, &root->fs_info->trans_list);
+		btrfs_ordered_inode_tree_init(&cur_trans->ordered_inode_tree);
 		extent_map_tree_init(&cur_trans->dirty_pages,
 				     root->fs_info->btree_inode->i_mapping,
 				     GFP_NOFS);
@@ -473,6 +474,60 @@
 	return ret;
 }
 
+int btrfs_write_ordered_inodes(struct btrfs_trans_handle *trans,
+				struct btrfs_root *root)
+{
+	struct btrfs_transaction *cur_trans = trans->transaction;
+	struct inode *inode;
+	u64 root_objectid = 0;
+	u64 objectid = 0;
+	u64 transid = trans->transid;
+	int ret;
+
+printk("write ordered trans %Lu\n", transid);
+	while(1) {
+		ret = btrfs_find_first_ordered_inode(
+				&cur_trans->ordered_inode_tree,
+				&root_objectid, &objectid);
+		if (!ret)
+			break;
+
+		mutex_unlock(&root->fs_info->trans_mutex);
+		mutex_unlock(&root->fs_info->fs_mutex);
+		inode = btrfs_ilookup(root->fs_info->sb, objectid,
+				      root_objectid);
+		if (inode) {
+			if (S_ISREG(inode->i_mode))
+				filemap_fdatawrite(inode->i_mapping);
+			iput(inode);
+		}
+		mutex_lock(&root->fs_info->fs_mutex);
+		mutex_lock(&root->fs_info->trans_mutex);
+	}
+	while(1) {
+		root_objectid = 0;
+		objectid = 0;
+		ret = btrfs_find_del_first_ordered_inode(
+				&cur_trans->ordered_inode_tree,
+				&root_objectid, &objectid);
+		if (!ret)
+			break;
+		mutex_unlock(&root->fs_info->trans_mutex);
+		mutex_unlock(&root->fs_info->fs_mutex);
+		inode = btrfs_ilookup(root->fs_info->sb, objectid,
+				      root_objectid);
+		if (inode) {
+			if (S_ISREG(inode->i_mode))
+				filemap_write_and_wait(inode->i_mapping);
+			iput(inode);
+		}
+		mutex_lock(&root->fs_info->fs_mutex);
+		mutex_lock(&root->fs_info->trans_mutex);
+	}
+printk("done write ordered trans %Lu\n", transid);
+	return 0;
+}
+
 int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
 			     struct btrfs_root *root)
 {
@@ -550,10 +605,13 @@
 		mutex_lock(&root->fs_info->fs_mutex);
 		mutex_lock(&root->fs_info->trans_mutex);
 		finish_wait(&cur_trans->writer_wait, &wait);
+		ret = btrfs_write_ordered_inodes(trans, root);
+
 	} while (cur_trans->num_writers > 1 ||
 		 (cur_trans->num_joined != joined));
 
 	WARN_ON(cur_trans != trans->transaction);
+
 	ret = add_dirty_roots(trans, &root->fs_info->fs_roots_radix,
 			      &dirty_fs_roots);
 	BUG_ON(ret);
diff --git a/fs/btrfs/transaction.h b/fs/btrfs/transaction.h
index eef840b..c157ddb 100644
--- a/fs/btrfs/transaction.h
+++ b/fs/btrfs/transaction.h
@@ -16,9 +16,10 @@
  * Boston, MA 021110-1307, USA.
  */
 
-#ifndef __TRANSACTION__
-#define __TRANSACTION__
+#ifndef __BTRFS_TRANSACTION__
+#define __BTRFS_TRANSACTION__
 #include "btrfs_inode.h"
+#include "ordered-data.h"
 
 struct btrfs_transaction {
 	u64 transid;
@@ -30,6 +31,7 @@
 	struct list_head list;
 	struct extent_map_tree dirty_pages;
 	unsigned long start_time;
+	struct btrfs_ordered_inode_tree ordered_inode_tree;
 	wait_queue_head_t writer_wait;
 	wait_queue_head_t commit_wait;
 };
@@ -90,4 +92,6 @@
 int btrfs_clean_old_snapshots(struct btrfs_root *root);
 int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
 			     struct btrfs_root *root);
+int btrfs_write_ordered_inodes(struct btrfs_trans_handle *trans,
+				struct btrfs_root *root);
 #endif