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24#ifndef _NILFS_BTNODE_H
25#define _NILFS_BTNODE_H
26
27#include <linux/types.h>
28#include <linux/buffer_head.h>
29#include <linux/fs.h>
30#include <linux/backing-dev.h>
31
32
33struct nilfs_btnode_chkey_ctxt {
34 __u64 oldkey;
35 __u64 newkey;
36 struct buffer_head *bh;
37 struct buffer_head *newbh;
38};
39
40void nilfs_btnode_cache_init_once(struct address_space *);
41void nilfs_btnode_cache_init(struct address_space *, struct backing_dev_info *);
42void nilfs_btnode_cache_clear(struct address_space *);
43int nilfs_btnode_submit_block(struct address_space *, __u64, sector_t,
44 struct buffer_head **, int);
45int nilfs_btnode_get(struct address_space *, __u64, sector_t,
46 struct buffer_head **, int);
47void nilfs_btnode_delete(struct buffer_head *);
48int nilfs_btnode_prepare_change_key(struct address_space *,
49 struct nilfs_btnode_chkey_ctxt *);
50void nilfs_btnode_commit_change_key(struct address_space *,
51 struct nilfs_btnode_chkey_ctxt *);
52void nilfs_btnode_abort_change_key(struct address_space *,
53 struct nilfs_btnode_chkey_ctxt *);
54
55#define nilfs_btnode_mark_dirty(bh) nilfs_mark_buffer_dirty(bh)
56
57
58#endif
59