Btrfs: drop owner and parentid

Signed-off-by: NChris Mason <chris.mason@oracle.com>

fs/btrfs/ctree.c

@@ -688,8 +688,6 @@ static int insert_new_root(struct btrfs_trans_handle *trans, struct btrfs_root
 	btrfs_set_header_level(&c->header, level);
 	btrfs_set_header_blocknr(&c->header, t->b_blocknr);
 	btrfs_set_header_generation(&c->header, trans->transid);
-	btrfs_set_header_parentid(&c->header,
-	      btrfs_header_parentid(btrfs_buffer_header(root->node)));
 	lower = btrfs_buffer_node(path->nodes[level-1]);
 	memcpy(c->header.fsid, root->fs_info->disk_super->fsid,
 	       sizeof(c->header.fsid));
@@ -784,8 +782,6 @@ static int split_node(struct btrfs_trans_handle *trans, struct btrfs_root
 	btrfs_set_header_level(&split->header, btrfs_header_level(&c->header));
 	btrfs_set_header_blocknr(&split->header, split_buffer->b_blocknr);
 	btrfs_set_header_generation(&split->header, trans->transid);
-	btrfs_set_header_parentid(&split->header,
-	      btrfs_header_parentid(btrfs_buffer_header(root->node)));
 	memcpy(split->header.fsid, root->fs_info->disk_super->fsid,
 	       sizeof(split->header.fsid));
 	mid = (c_nritems + 1) / 2;
@@ -1145,8 +1141,6 @@ static int split_leaf(struct btrfs_trans_handle *trans, struct btrfs_root
 	btrfs_set_header_blocknr(&right->header, right_buffer->b_blocknr);
 	btrfs_set_header_generation(&right->header, trans->transid);
 	btrfs_set_header_level(&right->header, 0);
-	btrfs_set_header_parentid(&right->header,
-	      btrfs_header_parentid(btrfs_buffer_header(root->node)));
 	memcpy(right->header.fsid, root->fs_info->disk_super->fsid,
 	       sizeof(right->header.fsid));
 	if (mid <= slot) {
@@ -1237,8 +1231,6 @@ static int split_leaf(struct btrfs_trans_handle *trans, struct btrfs_root
 	btrfs_set_header_blocknr(&right->header, right_buffer->b_blocknr);
 	btrfs_set_header_generation(&right->header, trans->transid);
 	btrfs_set_header_level(&right->header, 0);
-	btrfs_set_header_parentid(&right->header,
-	      btrfs_header_parentid(btrfs_buffer_header(root->node)));
 	memcpy(right->header.fsid, root->fs_info->disk_super->fsid,
 	       sizeof(right->header.fsid));
 	btrfs_cpu_key_to_disk(&disk_key, ins_key);

fs/btrfs/ctree.h

@@ -60,7 +60,6 @@ struct btrfs_header {
 	u8 fsid[16]; /* FS specific uuid */
 	__le64 blocknr; /* which block this node is supposed to live in */
 	__le64 generation;
-	__le64 parentid; /* objectid of the tree root */
 	__le16 nritems;
 	__le16 flags;
 	u8 level;
@@ -147,7 +146,6 @@ struct btrfs_path {
  */
 struct btrfs_extent_item {
 	__le32 refs;
-	__le64 owner;
 } __attribute__ ((__packed__));
 
 struct btrfs_inode_timespec {
@@ -443,16 +441,6 @@ static inline void btrfs_set_timespec_nsec(struct btrfs_inode_timespec *ts,
 	ts->nsec = cpu_to_le32(val);
 }
 
-static inline u64 btrfs_extent_owner(struct btrfs_extent_item *ei)
-{
-	return le64_to_cpu(ei->owner);
-}
-
-static inline void btrfs_set_extent_owner(struct btrfs_extent_item *ei, u64 val)
-{
-	ei->owner = cpu_to_le64(val);
-}
-
 static inline u32 btrfs_extent_refs(struct btrfs_extent_item *ei)
 {
 	return le32_to_cpu(ei->refs);
@@ -652,17 +640,6 @@ static inline void btrfs_set_header_generation(struct btrfs_header *h,
 	h->generation = cpu_to_le64(val);
 }
 
-static inline u64 btrfs_header_parentid(struct btrfs_header *h)
-{
-	return le64_to_cpu(h->parentid);
-}
-
-static inline void btrfs_set_header_parentid(struct btrfs_header *h,
-					     u64 parentid)
-{
-	h->parentid = cpu_to_le64(parentid);
-}
-
 static inline u16 btrfs_header_nritems(struct btrfs_header *h)
 {
 	return le16_to_cpu(h->nritems);
@@ -919,7 +896,7 @@ struct buffer_head *btrfs_alloc_free_block(struct btrfs_trans_handle *trans,
 					    struct btrfs_root *root);
 int btrfs_alloc_extent(struct btrfs_trans_handle *trans, struct btrfs_root
 			*root, u64 num_blocks, u64 search_start, u64
-			search_end, u64 owner, struct btrfs_key *ins);
+			search_end, struct btrfs_key *ins);
 int btrfs_inc_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root,
 		  struct buffer_head *buf);
 int btrfs_free_extent(struct btrfs_trans_handle *trans, struct btrfs_root

fs/btrfs/extent-tree.c

@@ -157,8 +157,6 @@ static int finish_current_insert(struct btrfs_trans_handle *trans, struct
 	struct btrfs_fs_info *info = extent_root->fs_info;
 
 	btrfs_set_extent_refs(&extent_item, 1);
-	btrfs_set_extent_owner(&extent_item,
-		btrfs_header_parentid(btrfs_buffer_header(extent_root->node)));
 	ins.offset = 1;
 	ins.flags = 0;
 	btrfs_set_key_type(&ins, BTRFS_EXTENT_ITEM_KEY);
@@ -457,7 +455,7 @@ static int find_free_extent(struct btrfs_trans_handle *trans, struct btrfs_root
  */
 int btrfs_alloc_extent(struct btrfs_trans_handle *trans, struct btrfs_root
 			*root, u64 num_blocks, u64 search_start, u64
-			search_end, u64 owner, struct btrfs_key *ins)
+			search_end, struct btrfs_key *ins)
 {
 	int ret;
 	int pending_ret;
@@ -467,7 +465,6 @@ int btrfs_alloc_extent(struct btrfs_trans_handle *trans, struct btrfs_root
 	struct btrfs_extent_item extent_item;
 
 	btrfs_set_extent_refs(&extent_item, 1);
-	btrfs_set_extent_owner(&extent_item, owner);
 
 	if (root == extent_root) {
 		BUG_ON(extent_root->fs_info->current_insert.offset == 0);
@@ -510,8 +507,7 @@ struct buffer_head *btrfs_alloc_free_block(struct btrfs_trans_handle *trans,
 	int ret;
 	struct buffer_head *buf;
 
-	ret = btrfs_alloc_extent(trans, root, 1, 0, (unsigned long)-1,
-		btrfs_header_parentid(btrfs_buffer_header(root->node)), &ins);
+	ret = btrfs_alloc_extent(trans, root, 1, 0, (unsigned long)-1, &ins);
 	if (ret) {
 		BUG();
 		return NULL;

fs/btrfs/file-item.c

@@ -19,7 +19,7 @@ int btrfs_alloc_file_extent(struct btrfs_trans_handle *trans,
 	BUG_ON(!path);
 	btrfs_init_path(path);
 	ret = btrfs_alloc_extent(trans, root, num_blocks, hint_block,
-				 (u64)-1, objectid, &ins);
+				 (u64)-1, &ins);
 	BUG_ON(ret);
 	file_key.objectid = objectid;
 	file_key.offset = offset;

fs/btrfs/print-tree.c

@@ -50,8 +50,8 @@ void btrfs_print_leaf(struct btrfs_root *root, struct btrfs_leaf *l)
 			break;
 		case BTRFS_EXTENT_ITEM_KEY:
 			ei = btrfs_item_ptr(l, i, struct btrfs_extent_item);
-			printk("\t\textent data refs %u owner %Lu\n",
-				btrfs_extent_refs(ei), btrfs_extent_owner(ei));
+			printk("\t\textent data refs %u\n",
+				btrfs_extent_refs(ei));
 			break;
 		case BTRFS_STRING_ITEM_KEY:
 			printk("\t\titem data %.*s\n", btrfs_item_size(item),

fs/btrfs/transaction.c

@@ -163,7 +163,6 @@ int add_dirty_roots(struct btrfs_trans_handle *trans,
 	int i;
 	int ret;
 	int err;
-printk("add dirty\n");
 	while(1) {
 		ret = radix_tree_gang_lookup_tag(radix, (void **)gang, 0,
 						 ARRAY_SIZE(gang),
@@ -188,7 +187,6 @@ printk("add dirty\n");
 			dirty->commit_root = root->commit_root;
 			root->commit_root = NULL;
 			dirty->root = root;
-printk("adding dirty root %Lu gen %Lu blocknr %Lu\n", root->root_key.objectid, root->root_key.offset, dirty->commit_root->b_blocknr);
 			root->root_key.offset = root->fs_info->generation;
 			btrfs_set_root_blocknr(&root->root_item,
 					       root->node->b_blocknr);
@@ -199,7 +197,6 @@ printk("adding dirty root %Lu gen %Lu blocknr %Lu\n", root->root_key.objectid, r
 			list_add(&dirty->list, list);
 		}
 	}
-printk("add dirty done\n");
 	return 0;
 }
 
@@ -213,12 +210,10 @@ int drop_dirty_roots(struct btrfs_root *tree_root, struct list_head *list)
 		dirty = list_entry(list->next, struct dirty_root, list);
 		list_del_init(&dirty->list);
 		trans = btrfs_start_transaction(tree_root, 1);
-printk("drop snapshot root %p, commit_root blocknr %Lu generation %Lu\n", dirty->root, dirty->commit_root->b_blocknr, dirty->snap_key.offset);
 		ret = btrfs_drop_snapshot(trans, dirty->root,
 					  dirty->commit_root);
 		BUG_ON(ret);
 
-printk("del root objectid %Lu, offset %Lu\n", dirty->snap_key.objectid, dirty->snap_key.offset);
 		ret = btrfs_del_root(trans, tree_root, &dirty->snap_key);
 		BUG_ON(ret);
 		ret = btrfs_end_transaction(trans, tree_root);
@@ -240,7 +235,6 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
 
 	mutex_lock(&root->fs_info->trans_mutex);
 	if (trans->transaction->in_commit) {
-printk("already in commit!, waiting\n");
 		cur_trans = trans->transaction;
 		trans->transaction->use_count++;
 		btrfs_end_transaction(trans, root);