btrfs-progs/kernel-shared/tree-mod-log.h

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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef BTRFS_TREE_MOD_LOG_H
#define BTRFS_TREE_MOD_LOG_H
#include "kernel-shared/ctree.h"
/* Represents a tree mod log user. */
struct btrfs_seq_list {
struct list_head list;
u64 seq;
};
#define BTRFS_SEQ_LIST_INIT(name) { .list = LIST_HEAD_INIT((name).list), .seq = 0 }
#define BTRFS_SEQ_LAST ((u64)-1)
enum btrfs_mod_log_op {
BTRFS_MOD_LOG_KEY_REPLACE,
BTRFS_MOD_LOG_KEY_ADD,
BTRFS_MOD_LOG_KEY_REMOVE,
BTRFS_MOD_LOG_KEY_REMOVE_WHILE_FREEING,
BTRFS_MOD_LOG_KEY_REMOVE_WHILE_MOVING,
BTRFS_MOD_LOG_MOVE_KEYS,
BTRFS_MOD_LOG_ROOT_REPLACE,
};
static inline u64 btrfs_get_tree_mod_seq(struct btrfs_fs_info *fs_info,
struct btrfs_seq_list *elem)
{
return 0;
}
static inline void btrfs_put_tree_mod_seq(struct btrfs_fs_info *fs_info,
struct btrfs_seq_list *elem)
{
}
static inline int btrfs_tree_mod_log_insert_root(struct extent_buffer *old_root,
struct extent_buffer *new_root,
bool log_removal)
{
return 0;
}
static inline int btrfs_tree_mod_log_insert_key(struct extent_buffer *eb, int slot,
enum btrfs_mod_log_op op)
{
return 0;
}
static inline int btrfs_tree_mod_log_free_eb(struct extent_buffer *eb)
{
return 0;
}
static inline struct extent_buffer *btrfs_tree_mod_log_rewind(struct btrfs_fs_info *fs_info,
struct btrfs_path *path,
struct extent_buffer *eb,
u64 time_seq)
{
return NULL;
}
static inline struct extent_buffer *btrfs_get_old_root(struct btrfs_root *root,
u64 time_seq)
{
return NULL;
}
static inline int btrfs_old_root_level(struct btrfs_root *root, u64 time_seq)
{
return btrfs_header_level(root->node);
}
static inline int btrfs_tree_mod_log_eb_copy(struct extent_buffer *dst,
struct extent_buffer *src,
unsigned long dst_offset,
unsigned long src_offset,
int nr_items)
{
return 0;
}
static inline int btrfs_tree_mod_log_insert_move(struct extent_buffer *eb,
int dst_slot, int src_slot,
int nr_items)
{
return 0;
}
static inline u64 btrfs_tree_mod_log_lowest_seq(struct btrfs_fs_info *fs_info)
{
return 0;
}
#endif