mirror of
https://github.com/kdave/btrfs-progs
synced 2024-12-28 09:02:19 +00:00
c6039704c5
This commit pulls those portions of the kernel implementation of delayed refs which are necessary to have them working in user-space. I've done the following modifications: 1. Replaced all kmem_cache_alloc calls to kmalloc. 2. Removed all locking-related code, since we are single threaded in userspace. 3. Removed code which deals with data refs - delayed refs in user space are going to be used only for cowonly trees. Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
51 lines
1.6 KiB
C
51 lines
1.6 KiB
C
/*
|
|
* 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"
|
|
#include "delayed-ref.h"
|
|
|
|
struct btrfs_trans_handle {
|
|
struct btrfs_fs_info *fs_info;
|
|
u64 transid;
|
|
u64 alloc_exclude_start;
|
|
u64 alloc_exclude_nr;
|
|
bool reinit_extent_tree;
|
|
u64 delayed_ref_updates;
|
|
unsigned long blocks_reserved;
|
|
unsigned long blocks_used;
|
|
struct btrfs_block_group_cache *block_group;
|
|
struct btrfs_delayed_ref_root delayed_refs;
|
|
|
|
};
|
|
|
|
struct btrfs_trans_handle* btrfs_start_transaction(struct btrfs_root *root,
|
|
int num_blocks);
|
|
int __commit_transaction(struct btrfs_trans_handle *trans,
|
|
struct btrfs_root *root);
|
|
int commit_tree_roots(struct btrfs_trans_handle *trans,
|
|
struct btrfs_fs_info *fs_info);
|
|
int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
|
|
struct btrfs_root *root);
|
|
void btrfs_abort_transaction(struct btrfs_trans_handle *trans, int error);
|
|
|
|
#endif
|