1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _BCACHEFS_BTREE_WRITE_BUFFER_H
#define _BCACHEFS_BTREE_WRITE_BUFFER_H
#include "bkey.h"
static inline bool bch2_btree_write_buffer_should_flush(struct bch_fs *c)
{
struct btree_write_buffer *wb = &c->btree_write_buffer;
return wb->inc.keys.nr + wb->flushing.keys.nr > wb->inc.keys.size / 4;
}
static inline bool bch2_btree_write_buffer_must_wait(struct bch_fs *c)
{
struct btree_write_buffer *wb = &c->btree_write_buffer;
return wb->inc.keys.nr > wb->inc.keys.size * 3 / 4;
}
struct btree_trans;
int bch2_btree_write_buffer_flush_sync(struct btree_trans *);
int bch2_btree_write_buffer_flush_nocheck_rw(struct btree_trans *);
int bch2_btree_write_buffer_tryflush(struct btree_trans *);
struct bkey_buf;
int bch2_btree_write_buffer_maybe_flush(struct btree_trans *, struct bkey_s_c, struct bkey_buf *);
struct journal_keys_to_wb {
struct btree_write_buffer_keys *wb;
size_t room;
u64 seq;
};
int bch2_journal_key_to_wb_slowpath(struct bch_fs *,
struct journal_keys_to_wb *,
enum btree_id, struct bkey_i *);
static inline int bch2_journal_key_to_wb(struct bch_fs *c,
struct journal_keys_to_wb *dst,
enum btree_id btree, struct bkey_i *k)
{
EBUG_ON(!dst->seq);
if (unlikely(!dst->room))
return bch2_journal_key_to_wb_slowpath(c, dst, btree, k);
struct btree_write_buffered_key *wb_k = &darray_top(dst->wb->keys);
wb_k->journal_seq = dst->seq;
wb_k->btree = btree;
bkey_copy(&wb_k->k, k);
dst->wb->keys.nr++;
dst->room--;
return 0;
}
void bch2_journal_keys_to_write_buffer_start(struct bch_fs *, struct journal_keys_to_wb *, u64);
void bch2_journal_keys_to_write_buffer_end(struct bch_fs *, struct journal_keys_to_wb *);
int bch2_btree_write_buffer_resize(struct bch_fs *, size_t);
void bch2_fs_btree_write_buffer_exit(struct bch_fs *);
int bch2_fs_btree_write_buffer_init(struct bch_fs *);
#endif /* _BCACHEFS_BTREE_WRITE_BUFFER_H */
|
