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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _BCACHEFS_BTREE_WRITE_BUFFER_TYPES_H
#define _BCACHEFS_BTREE_WRITE_BUFFER_TYPES_H
#include "journal_types.h"
#define BTREE_WRITE_BUFERED_VAL_U64s_MAX 4
#define BTREE_WRITE_BUFERED_U64s_MAX (BKEY_U64s + BTREE_WRITE_BUFERED_VAL_U64s_MAX)
struct btree_write_buffered_key {
u64 journal_seq;
unsigned journal_offset;
enum btree_id btree;
__BKEY_PADDED(k, BTREE_WRITE_BUFERED_VAL_U64s_MAX);
};
union btree_write_buffer_state {
struct {
atomic64_t counter;
};
struct {
u64 v;
};
struct {
u64 nr:23;
u64 idx:1;
u64 ref0:20;
u64 ref1:20;
};
};
struct btree_write_buffer {
struct mutex flush_lock;
struct journal_entry_pin journal_pin;
union btree_write_buffer_state state;
size_t size;
struct btree_write_buffered_key *keys[2];
};
#endif /* _BCACHEFS_BTREE_WRITE_BUFFER_TYPES_H */
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