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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
28 lines
555 B
C
28 lines
555 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _BCACHEFS_LRU_FORMAT_H
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#define _BCACHEFS_LRU_FORMAT_H
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struct bch_lru {
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struct bch_val v;
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__le64 idx;
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} __packed __aligned(8);
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#define BCH_LRU_TYPES() \
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x(read) \
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x(fragmentation) \
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x(stripes)
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enum bch_lru_type {
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#define x(n) BCH_LRU_##n,
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BCH_LRU_TYPES()
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#undef x
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};
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#define BCH_LRU_BUCKET_FRAGMENTATION ((1U << 16) - 1)
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#define BCH_LRU_STRIPE_FRAGMENTATION ((1U << 16) - 2)
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#define LRU_TIME_BITS 48
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#define LRU_TIME_MAX ((1ULL << LRU_TIME_BITS) - 1)
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#endif /* _BCACHEFS_LRU_FORMAT_H */
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