-#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__
+#define __BTRFS_TRANSACTION__
+#include "btrfs_inode.h"
+
+struct btrfs_transaction {
+ u64 transid;
+ unsigned long num_writers;
+ unsigned long num_joined;
+ int in_commit;
+ int use_count;
+ int commit_done;
+ int blocked;
+ struct list_head list;
+ struct extent_io_tree dirty_pages;
+ unsigned long start_time;
+ wait_queue_head_t writer_wait;
+ wait_queue_head_t commit_wait;
+ struct list_head pending_snapshots;
+};
struct btrfs_trans_handle {
u64 transid;
unsigned long blocks_reserved;
unsigned long blocks_used;
+ struct btrfs_transaction *transaction;
+ u64 block_group;
+ u64 alloc_exclude_start;
+ u64 alloc_exclude_nr;
+};
+
+struct btrfs_pending_snapshot {
+ struct dentry *dentry;
+ struct btrfs_root *root;
+ char *name;
+ struct btrfs_key root_key;
+ struct list_head list;
};
-static inline struct btrfs_trans_handle *
-btrfs_start_transaction(struct btrfs_root *root, int num_blocks)
+struct btrfs_dirty_root {
+ struct list_head list;
+ struct btrfs_root *root;
+ struct btrfs_root *latest_root;
+};
+
+static inline void btrfs_set_trans_block_group(struct btrfs_trans_handle *trans,
+ struct inode *inode)
+{
+ trans->block_group = BTRFS_I(inode)->block_group;
+}
+
+static inline void btrfs_update_inode_block_group(
+ struct btrfs_trans_handle *trans,
+ struct inode *inode)
{
- struct btrfs_trans_handle *h = malloc(sizeof(*h));
- h->transid = root->root_key.offset;
- h->blocks_reserved = num_blocks;
- h->blocks_used = 0;
- return h;
+ BTRFS_I(inode)->block_group = trans->block_group;
}
-static inline void btrfs_free_transaction(struct btrfs_root *root,
- struct btrfs_trans_handle *handle)
+static inline void btrfs_set_inode_last_trans(struct btrfs_trans_handle *trans,
+ struct inode *inode)
{
- memset(handle, 0, sizeof(*handle));
- free(handle);
+ BTRFS_I(inode)->last_trans = trans->transaction->transid;
}
+int btrfs_end_transaction(struct btrfs_trans_handle *trans,
+ struct btrfs_root *root);
+struct btrfs_trans_handle *btrfs_start_transaction(struct btrfs_root *root,
+ int num_blocks);
+struct btrfs_trans_handle *btrfs_join_transaction(struct btrfs_root *root,
+ int num_blocks);
+struct btrfs_trans_handle *btrfs_start_ioctl_transaction(struct btrfs_root *r,
+ int num_blocks);
+int btrfs_write_and_wait_transaction(struct btrfs_trans_handle *trans,
+ struct btrfs_root *root);
+int btrfs_commit_tree_roots(struct btrfs_trans_handle *trans,
+ struct btrfs_root *root);
+
+int btrfs_add_dead_root(struct btrfs_root *root, struct btrfs_root *latest);
+int btrfs_defrag_root(struct btrfs_root *root, int cacheonly);
+int btrfs_clean_old_snapshots(struct btrfs_root *root);
+int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
+ struct btrfs_root *root);
+int btrfs_end_transaction_throttle(struct btrfs_trans_handle *trans,
+ struct btrfs_root *root);
+void btrfs_throttle(struct btrfs_root *root);
+int btrfs_record_root_in_trans(struct btrfs_root *root);
+int btrfs_write_and_wait_marked_extents(struct btrfs_root *root,
+ struct extent_io_tree *dirty_pages);
#endif