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bcachefs: alloc_background_format.h 

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2024-01-21 00:01:52 -05:00
parent 72e0801049
commit d455179fce
2 changed files with 94 additions and 93 deletions
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92
fs/bcachefs/alloc_background_format.h Normal file
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@ -0,0 +1,92 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _BCACHEFS_ALLOC_BACKGROUND_FORMAT_H
#define _BCACHEFS_ALLOC_BACKGROUND_FORMAT_H
struct bch_alloc {
struct bch_val v;
__u8 fields;
__u8 gen;
__u8 data[];
} __packed __aligned(8);
#define BCH_ALLOC_FIELDS_V1() \
x(read_time, 16) \
x(write_time, 16) \
x(data_type, 8) \
x(dirty_sectors, 16) \
x(cached_sectors, 16) \
x(oldest_gen, 8) \
x(stripe, 32) \
x(stripe_redundancy, 8)
enum {
#define x(name, _bits) BCH_ALLOC_FIELD_V1_##name,
BCH_ALLOC_FIELDS_V1()
#undef x
};
struct bch_alloc_v2 {
struct bch_val v;
__u8 nr_fields;
__u8 gen;
__u8 oldest_gen;
__u8 data_type;
__u8 data[];
} __packed __aligned(8);
#define BCH_ALLOC_FIELDS_V2() \
x(read_time, 64) \
x(write_time, 64) \
x(dirty_sectors, 32) \
x(cached_sectors, 32) \
x(stripe, 32) \
x(stripe_redundancy, 8)
struct bch_alloc_v3 {
struct bch_val v;
__le64 journal_seq;
__le32 flags;
__u8 nr_fields;
__u8 gen;
__u8 oldest_gen;
__u8 data_type;
__u8 data[];
} __packed __aligned(8);
LE32_BITMASK(BCH_ALLOC_V3_NEED_DISCARD,struct bch_alloc_v3, flags, 0, 1)
LE32_BITMASK(BCH_ALLOC_V3_NEED_INC_GEN,struct bch_alloc_v3, flags, 1, 2)
struct bch_alloc_v4 {
struct bch_val v;
__u64 journal_seq;
__u32 flags;
__u8 gen;
__u8 oldest_gen;
__u8 data_type;
__u8 stripe_redundancy;
__u32 dirty_sectors;
__u32 cached_sectors;
__u64 io_time[2];
__u32 stripe;
__u32 nr_external_backpointers;
__u64 fragmentation_lru;
} __packed __aligned(8);
#define BCH_ALLOC_V4_U64s_V0 6
#define BCH_ALLOC_V4_U64s (sizeof(struct bch_alloc_v4) / sizeof(__u64))
BITMASK(BCH_ALLOC_V4_NEED_DISCARD, struct bch_alloc_v4, flags, 0, 1)
BITMASK(BCH_ALLOC_V4_NEED_INC_GEN, struct bch_alloc_v4, flags, 1, 2)
BITMASK(BCH_ALLOC_V4_BACKPOINTERS_START,struct bch_alloc_v4, flags, 2, 8)
BITMASK(BCH_ALLOC_V4_NR_BACKPOINTERS, struct bch_alloc_v4, flags, 8, 14)
#define KEY_TYPE_BUCKET_GENS_BITS 8
#define KEY_TYPE_BUCKET_GENS_NR (1U << KEY_TYPE_BUCKET_GENS_BITS)
#define KEY_TYPE_BUCKET_GENS_MASK (KEY_TYPE_BUCKET_GENS_NR - 1)
struct bch_bucket_gens {
struct bch_val v;
u8 gens[KEY_TYPE_BUCKET_GENS_NR];
} __packed __aligned(8);
#endif /* _BCACHEFS_ALLOC_BACKGROUND_FORMAT_H */

95
fs/bcachefs/bcachefs_format.h
View File

@ -710,89 +710,6 @@ struct bch_reservation {
#define BKEY_BTREE_PTR_U64s_MAX \
(BKEY_U64s + BKEY_BTREE_PTR_VAL_U64s_MAX)
/* Bucket/allocation information: */
struct bch_alloc {
struct bch_val v;
__u8 fields;
__u8 gen;
__u8 data[];
} __packed __aligned(8);
#define BCH_ALLOC_FIELDS_V1() \
x(read_time, 16) \
x(write_time, 16) \
x(data_type, 8) \
x(dirty_sectors, 16) \
x(cached_sectors, 16) \
x(oldest_gen, 8) \
x(stripe, 32) \
x(stripe_redundancy, 8)
enum {
#define x(name, _bits) BCH_ALLOC_FIELD_V1_##name,
BCH_ALLOC_FIELDS_V1()
#undef x
};
struct bch_alloc_v2 {
struct bch_val v;
__u8 nr_fields;
__u8 gen;
__u8 oldest_gen;
__u8 data_type;
__u8 data[];
} __packed __aligned(8);
#define BCH_ALLOC_FIELDS_V2() \
x(read_time, 64) \
x(write_time, 64) \
x(dirty_sectors, 32) \
x(cached_sectors, 32) \
x(stripe, 32) \
x(stripe_redundancy, 8)
struct bch_alloc_v3 {
struct bch_val v;
__le64 journal_seq;
__le32 flags;
__u8 nr_fields;
__u8 gen;
__u8 oldest_gen;
__u8 data_type;
__u8 data[];
} __packed __aligned(8);
LE32_BITMASK(BCH_ALLOC_V3_NEED_DISCARD,struct bch_alloc_v3, flags, 0, 1)
LE32_BITMASK(BCH_ALLOC_V3_NEED_INC_GEN,struct bch_alloc_v3, flags, 1, 2)
struct bch_alloc_v4 {
struct bch_val v;
__u64 journal_seq;
__u32 flags;
__u8 gen;
__u8 oldest_gen;
__u8 data_type;
__u8 stripe_redundancy;
__u32 dirty_sectors;
__u32 cached_sectors;
__u64 io_time[2];
__u32 stripe;
__u32 nr_external_backpointers;
__u64 fragmentation_lru;
} __packed __aligned(8);
#define BCH_ALLOC_V4_U64s_V0 6
#define BCH_ALLOC_V4_U64s (sizeof(struct bch_alloc_v4) / sizeof(__u64))
BITMASK(BCH_ALLOC_V4_NEED_DISCARD, struct bch_alloc_v4, flags, 0, 1)
BITMASK(BCH_ALLOC_V4_NEED_INC_GEN, struct bch_alloc_v4, flags, 1, 2)
BITMASK(BCH_ALLOC_V4_BACKPOINTERS_START,struct bch_alloc_v4, flags, 2, 8)
BITMASK(BCH_ALLOC_V4_NR_BACKPOINTERS, struct bch_alloc_v4, flags, 8, 14)
#define BCH_ALLOC_V4_NR_BACKPOINTERS_MAX 40
struct bch_backpointer {
struct bch_val v;
__u8 btree_id;
@ -803,15 +720,6 @@ struct bch_backpointer {
struct bpos pos;
} __packed __aligned(8);
#define KEY_TYPE_BUCKET_GENS_BITS 8
#define KEY_TYPE_BUCKET_GENS_NR (1U << KEY_TYPE_BUCKET_GENS_BITS)
#define KEY_TYPE_BUCKET_GENS_MASK (KEY_TYPE_BUCKET_GENS_NR - 1)
struct bch_bucket_gens {
struct bch_val v;
u8 gens[KEY_TYPE_BUCKET_GENS_NR];
} __packed __aligned(8);
/* Erasure coding */
struct bch_stripe {
@ -991,8 +899,9 @@ struct bch_sb_field {
x(ext, 13) \
x(downgrade, 14)
#include "dirent_format.h"
#include "alloc_background_format.h"
#include "inode_format.h"
#include "dirent_format.h"
#include "xattr_format.h"
#include "quota_format.h"
#include "sb-counters_format.h"