mirror of
https://github.com/torvalds/linux.git
synced 2024-11-15 16:41:58 +00:00
3f157a2fd2
The btree defragger wasn't making forward progress because the new key wasn't being saved by the btrfs_search_forward function. This also disables the automatic btree defrag, it wasn't scaling well to huge filesystems. The auto-defrag needs to be done differently. Signed-off-by: Chris Mason <chris.mason@oracle.com>
96 lines
2.9 KiB
C
96 lines
2.9 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__
|
|
#define __BTRFS_TRANSACTION__
|
|
#include "btrfs_inode.h"
|
|
#include "ordered-data.h"
|
|
|
|
struct btrfs_transaction {
|
|
u64 transid;
|
|
unsigned long num_writers;
|
|
unsigned long num_joined;
|
|
int in_commit;
|
|
int use_count;
|
|
int commit_done;
|
|
struct list_head list;
|
|
struct extent_io_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;
|
|
struct list_head pending_snapshots;
|
|
};
|
|
|
|
struct btrfs_trans_handle {
|
|
u64 transid;
|
|
unsigned long blocks_reserved;
|
|
unsigned long blocks_used;
|
|
struct btrfs_transaction *transaction;
|
|
struct btrfs_block_group_cache *block_group;
|
|
u64 alloc_exclude_start;
|
|
u64 alloc_exclude_nr;
|
|
};
|
|
|
|
struct btrfs_pending_snapshot {
|
|
struct btrfs_root *root;
|
|
char *name;
|
|
struct list_head list;
|
|
};
|
|
|
|
|
|
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)
|
|
{
|
|
BTRFS_I(inode)->block_group = trans->block_group;
|
|
}
|
|
|
|
static inline void btrfs_set_inode_last_trans(struct btrfs_trans_handle *trans,
|
|
struct inode *inode)
|
|
{
|
|
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);
|
|
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,
|
|
struct list_head *dead_list);
|
|
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_write_ordered_inodes(struct btrfs_trans_handle *trans,
|
|
struct btrfs_root *root);
|
|
int btrfs_end_transaction_throttle(struct btrfs_trans_handle *trans,
|
|
struct btrfs_root *root);
|
|
#endif
|