From 7aa7183e00d92539c61b3a01a7ebf676b0ecb91e Mon Sep 17 00:00:00 2001 From: Kent Overstreet Date: Wed, 19 Jun 2024 09:00:11 -0400 Subject: bcachefs: split out lru_format.h Signed-off-by: Kent Overstreet --- fs/bcachefs/lru_format.h | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 fs/bcachefs/lru_format.h (limited to 'fs/bcachefs/lru_format.h') diff --git a/fs/bcachefs/lru_format.h b/fs/bcachefs/lru_format.h new file mode 100644 index 000000000000..f372cb3b8cda --- /dev/null +++ b/fs/bcachefs/lru_format.h @@ -0,0 +1,25 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _BCACHEFS_LRU_FORMAT_H +#define _BCACHEFS_LRU_FORMAT_H + +struct bch_lru { + struct bch_val v; + __le64 idx; +} __packed __aligned(8); + +#define BCH_LRU_TYPES() \ + x(read) \ + x(fragmentation) + +enum bch_lru_type { +#define x(n) BCH_LRU_##n, + BCH_LRU_TYPES() +#undef x +}; + +#define BCH_LRU_FRAGMENTATION_START ((1U << 16) - 1) + +#define LRU_TIME_BITS 48 +#define LRU_TIME_MAX ((1ULL << LRU_TIME_BITS) - 1) + +#endif /* _BCACHEFS_LRU_FORMAT_H */ -- cgit v1.2.3