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