-#ifndef __TRANSACTION__
-#define __TRANSACTION__
+/*
+ * 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_TRANSACTION_H__
+#define __BTRFS_TRANSACTION_H__
+
+#include "kerncompat.h"
+#include "ctree.h"
struct btrfs_trans_handle {
u64 transid;
+ u64 alloc_exclude_start;
+ u64 alloc_exclude_nr;
unsigned long blocks_reserved;
unsigned long blocks_used;
+ struct btrfs_block_group_cache *block_group;
};
static inline struct btrfs_trans_handle *
btrfs_start_transaction(struct btrfs_root *root, int num_blocks)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_trans_handle *h = malloc(sizeof(*h));
- h->transid = root->root_key.offset;
+
+ BUG_ON(!h);
+ BUG_ON(root->commit_root);
+ BUG_ON(fs_info->running_transaction);
+ fs_info->running_transaction = h;
+ fs_info->generation++;
+ h->transid = fs_info->generation;
+ h->alloc_exclude_start = 0;
+ h->alloc_exclude_nr = 0;
h->blocks_reserved = num_blocks;
h->blocks_used = 0;
+ h->block_group = NULL;
+ root->last_trans = h->transid;
+ root->commit_root = root->node;
+ extent_buffer_get(root->node);
return h;
}